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View Full Version : S13 SR Greddy intake manifold write up.


burnsauto
09-02-2008, 09:09 PM
Ok guys, I've installed a few, and the first time I did it...we had very little information on how to do it. The instructions that Greddy gives you are decent, but the whole "not in english" thing can be a pain, especially when you're trying to figure out the right way to do it, based off pictures. I haven't found a 100% complete write up yet, so here we go.


S13 SR GREDDY MANIFOLD INSTALLATION:


Getting Started:

1. Spend 15 hours polishing it (optional).
2. Let the car sit for a few hours, letting the fuel pressure drop down to a minimum.
3. disconnect the battery
4. I usually put vice grips on the fuel lines before I disconnect them, this helps stop fuel from flowing out of the lines when i take them off. If you have them, I'd do this when removing the fuel lines from the rail.
5. Drain the coolant.

Stock OEM manifold removal:

5. Disconnect the following plugs on the wiring harness. CAS, TPS, Coolant temp sensor, 4 injector plugs (and the two grounds that bolt onto the last runner of the intake manifold) o2 sensor, knock sensor, Idle air control valve (both of these plugs are between the 3rd and 4th intake runners, bolted down to the OEM manifold, you can actually just unbolt the bracket that holds the plugs down anyways, it needs to come off) After you disconnect all of them, you should be able to move the harness out of your way. Also, disconnect the main ground wire from the manifold. Its held on by one bolt on the bottom half of the manifold, the surge tank.

6. Disconnect the throttle linkage. easy enough to do.

7. Disconnect the fuel rail. It should be held down by a few bolts, just make sure you dont lose the plastic spacers behind those bolts, or the rubber grommets the fuel rail goes into. Once the rail is off, just screw the bolts back in the OEM manifold with the spacers, so nothing is lost later on.

http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2402-1.jpg

8. Removal of manifold. Its actually not that bad. There are 6 Bolts, and 2 studs with nuts at both ends, that hold the manifold to the head. Underneath is a different story. there are a few brackets that hold that sucker up that you'll need to take off, and you won't need them ever again, they just get in the way later on. You'll have a small pile of brackets that you'll never need again. Just use trial and error, if its not breaking free, try to figure out whats still holding it on. This takes a few minutes.

9. Coolant hoses. Once the manifold breaks free you'll notice that there are a few hoses that are still attached to the AICV (idle air control valve) and throttle body. flip the manifold on its side and disconnect the hoses from it (this is why you need to drain the coolant.) Also, if you haven't noticed yet, you'll need to disconnect the two coolant hoses running to the throttle body.

10. Plugging and new hoses: The two hoses that ran to the throttle body, need to be cut, and plugged up (greddy provides plugs for you, if you lose them, bolts will work). Just cut the hoses short, but leave enough room for the plug and a hose clamp to go on. The only thing these hoses do, it try and help out with cold starts in the mornings/night. If you're adding this manifold, its not because you want reliability. Next, follow greddy's directions with the AICV hoses. The bottom hose (when looking at the engine block) needs to be replaced with a longer one that wraps around the IACV (prob around 9-10") and the top hose needs to be replaced with a hose to go onto the other fitting on the IACV (around 8" iirc)

IACV with the new hoses mocked up before bolted down to the manifold. (this is the way it will sit on the greddy manifold.)
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2559.jpg

-Messing with the OEM manifold-

A few things need to be removed from the stock SR manifold.

•Throttle body w/ 4 allen head bolts. (try to save the gasket if you can, if not a ka one is the same size as the oem sr tb)
•Throttle cable bracket w/studs.

-stud removal-
The best way to remove the studs is quite simple. (don't try to get them out with vice grips, you'll screw up the threads most of the time and its not worth messing it up.) After you remove the two 10mm nuts that hold on the bracket, screw one of the nuts on the stud all the way. Next take a washer from the bracket you just took off, and put it on over the nut. Continue by screwing the other nut over on top of the washer. The arrangement should be nut, washer, nut. using a 10mm socket, tighten down on the top nut until you notice the stud break free (it’ll move forward a little bit) Once this is done, take a 10mm open end wrench, and bring the stud out with the first nut you put on. The washer and top nut will keep the bottom nut from spinning off. After you have removed the stud, NOW you can use a pair of needle nose vice grips to grip onto the center part of the stud (part with no threads on it) to loosen the nut/washer arrangement you put together.

•IACV (idle air control valve) You’ll need to separate the stock OEM manifold, and unbolt the runners from the surge tank to get to the four (4) bolts that hold the sensor on. Give it a good tug and it should come off the tank. If you can save the gasket, try to do so by scraping it off gently with a fresh razor blade. If you rip it, you’ll have to order a new one from Courtesyparts.com - Genuine Nissan Parts, Accessories, NISMO and Nissan Motorsports (http://www.courtesyparts.com), as i haven’t found a USDM match.
•brake booster vacuum fitting. Its a zink coated elbow fitting on the back of the surge tank

Yar she is.
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2557.jpg

Separation of the runners and surge tank to get to the IACV
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2558.jpg

Installation of the Greddy manifold.

http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2551.jpg

1. With the gasket, install the IACV on the bottom of the greddy manifold.

2. Screw in the two fittings in the back of the greddy manifold, the brake booster fitting from the OEM manifold, and the swivel fitting provided with the new manifold. You can use teflon tape with these two fittings if you’d like.

3. Screw in the 3 Allen head plugs in the bottom of the greddy manifold. These can be used as other vacuum ports, but for a normal setup, aren’t needed.

4. Bolt in the two Vacuum nipples at the front of the manifold. These screw in below the throttle body, small one is for the fpr signal, larger one for your blow off valve.

5. Clean the head of all gasket material, grease, etc. The cleaner the better.

6. Bolt down the greddy intake manifold. Isn’t it pretty?

7. Clamp down the hoses for the IACV (you can get to them pretty easily now, no?) Longer one goes on the front fitting, shorter hose on the rear fitting.

8. If you havent noticed by now...the hoses for the PCV
valve and brake booster won’t work anymore. The PCV valve hose you can make pretty easily..just be creative. the stock hose for the brake booster vacuum fitting needs to be trimmed a bit (refer to greddy’s picture) or, just get some new hose and call it a day.

9. Install fuel rail.

-rail prep-

•Two brackets need to be cut/trimmed. the middle bottom one needs to be cut off completely, and the small tab on the back bottom one needs to be cut off. I used a small mini hack blade to do both and smoothed down the edges with a file.



•The stock fpr won’t fit correctly like it did on the OEM manifold. You can either a) rig it up and have it look terrible and not care b) take pride in your work and do it right the first time. Greddy makes a fitting for ~$50 that allows you to clock the fpr at a 90º angle, fits nice and clean, no messy fuel lines or cut up fpr’s. 240SXMotoring - Nissan 240SX High Performance Parts and accessories at Competitive Prices (http://www.240sxmotoring.com) has the fitting, not sure about any other places.

Greddy FPR fitting.
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2549.jpg

Now that all the prep for the rail is done, you can bolt it down, using the OEM rubber bushings, where the injectors meet the manifold. Make sure everything is snug when you bolt it all down.

10. Install the fuel lines. The feed line (one with the fuel filter) goes to the far end of the rail, near the 3rd and 4th runners, and the return line comes off the FPR. You’ll need roughly 2 feet of high pressure fuel line for the new feed line, remember to use fuel injection clamps only, don’t want any leaks now, do we?

11. Bolt down the throttle body w/gasket, and run the new intercooler piping.

12. You’ll need a little less than 2’ of 3/4” hose to connect the AICV to the intercooler piping, piece of cake.

13. You can now reconnect the throttle cable, using the OEM studs, and either, A) make your own cable bracket or, B) use the old bracket, but modify the throttle cable.

Many people just make a new bracket, its much easier. If you decide to use the OEM bracket, you’ll need to use an S14SR throttle pulley, and also cut up the throttle cable a little bit. You need to cut part of the sheathing away (behind the thick rubber part, where the cable end comes out....BEHIND THAT) so the cable has more slack to it. If you decide to do this, do a little at a time until its just right.

S13 SR throttle body, with the S14 SR pulley installed. (I cut my coolant inlet/outlet on the bottom of the tb off, makes it look much cleaner since I didn't use them anyways)
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2543.jpg

14. After this is done, reconnect all the wiring. The knock sensor, and AICV plugs don’t need to be on that bracket anymore, and can just be tucked under the manifold. Remember to connect the two grounds for the injectors, or you’ll be left scratching your head of why the car isn’t starting. Don’t forget the main ground for the engine, which can be bolted right underneath the throttle body.

To clean up the wiring I lengthened the injector plugs on the harness, so they can come up between each runner, so you only see the plug. Came out great, I'm glad I took the time to do it.
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2581.jpg

15. Fill the coolant system, bleed it out, make sure everything is secure and connected where it needs to be, and start her up!

Buttoned up and ready to go :)
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2592.jpg

You’ll notice you’ll lose a little on the low end, but this manifold loves to perform above 5500 rpm, and really can make a difference for those of us who love top end power.

Master Parts List:
• Greddy manifold - shop around, find a good deal.
• FPR fitting - 240SXMotoring - Nissan 240SX High Performance Parts and accessories at Competitive Prices (http://www.240sxmotoring.com)
• S14 SR Throttle Pulley - FRSport.com - Aftermarket Performance Parts (http://www.frsport.com)
• Intercooler piping - Courtesyparts.com - Genuine Nissan Parts, Accessories, NISMO and Nissan Motorsports (http://www.courtesyparts.com)

**** If you're installing on a SOHC KA chassis, you'll need a DOHC throttle cable.****


If you have anything to add, by all means. let me know, and if I didn't cover it, I'll include it (I wrote this entire thing off memory) I'll be adding pics very soon.

:bow:
-Jared

BiG MiKE86
09-03-2008, 05:49 PM
great write up! Thanks for taking the time to do this

burnsauto
09-03-2008, 06:01 PM
great write up! Thanks for taking the time to do this

thanks man...again, i may of missed a thing or two..i wrote this off memory.

slider2828
09-03-2008, 06:04 PM
That is a great write up, but is it true you lose a little low end response? Is that the general concensus on these?

MachineTune
09-03-2008, 06:13 PM
If there are people that may want to take the Greddy manifold one step further by adding a Q45 throttle body, then you can do so with this piece.
Please P.M. me with inquiries.

Thanks again for your much needed installation write up!

GSXRJJordan
09-03-2008, 06:36 PM
Greddy makes a fitting for ~$50 that allows you to clock the fpr at a 90º angle, fits nice and clean, no messy fuel lines or cut up fpr’s.

I think MA Motorsports is making one also (might be another vendor), check the *vendor* section here on the site :)

S13 SR throttle body, with the S13 SR pulley installed.

I think you mean S14 SR pulley, no?

Great writeup, I'm really surprised there isn't already a few on Zilvia.

burnsauto
09-03-2008, 06:42 PM
I think MA Motorsports is making one also (might be another vendor), check the *vendor* section here on the site :)



I think you mean S14 SR pulley, no?

Great writeup, I'm really surprised there isn't already a few on Zilvia.

whoop, fixed. (Still adding some more pics, Had to upload them from the camera.)

and yes, you will lose a little on the low end...but the top end is great..the manifold really makes a difference. As far as a 90mm throttle body add on, I'd only suggest that for large turbo applications that are shooting for large HP numbers.

smelly240
09-03-2008, 06:51 PM
what about that throttle linkage :P


rt-tuning fpr adapter...

http://zilvia.net/f/advertiser-specials-sales/206166-sr20det-fuel-pressure-regulator-adaptors.html

burnsauto
09-03-2008, 06:54 PM
what about that throttle linkage :P


rt-tuning fpr adapter...

http://zilvia.net/f/advertiser-specials-sales/206166-sr20det-fuel-pressure-regulator-adaptors.html

what about it? Could you be more specific?

with the S14SR pulley, and trimming some of the cables sheath (you can do this at the back near the firewall to get a cleaner look) it will work perfectly. Again, a custom bracket is much easier to do, I'm just a picky person...and love the punishment.

BiG MiKE86
09-03-2008, 08:05 PM
Im diggin how u routed the injector harness under the manifold - thats sexy :) i may have to try that - Yo could u show where u grounded those 2 cables near the injectors? also what size Vacuum hoses are u running? *newb question*

burnsauto
09-03-2008, 08:08 PM
As far as grounding the injectors, there is a threaded hole already on the back of the greddy manifold, so they just bolt right onto that. As far as the vacuum sizes, its the same size hoses you'd use on the stock oem manifold for the fpr and bov. (im not sure about the sizes, I already had the hoses lying around)

VAs13
09-03-2008, 08:10 PM
how did you go about polishing it?

smelly240
09-03-2008, 08:10 PM
i made my own bracket - i been waiting years for someone to sell one tho :)

burnsauto
09-03-2008, 08:17 PM
how did you go about polishing it?

PM'd you :)

BiG MiKE86
09-03-2008, 08:24 PM
i made my own bracket - i been waiting years for someone to sell one tho :)
For Realz... SOmeone could make some loot makin that stoopid bracket and a pulley thats plug and play

Thanks for the info again

Sileighty_85
09-03-2008, 08:44 PM
Damn Man you did a good job polishing it

If we still had Rep I'd give ya some lol

imSUPERjon
10-05-2008, 08:34 PM
where does the swivel fitting from step 2 of the install lead off to? i couldn't find a corresponding fitting on the oem manifold... so what's it for?

BiG MiKE86
10-06-2008, 05:55 PM
where does the swivel fitting from step 2 of the install lead off to? i couldn't find a corresponding fitting on the oem manifold... so what's it for?
The swivel fitting goes to the PCV Valve on the Rocker/Valve Cover

2fast4y0u
07-18-2009, 11:13 AM
if i cut cable sheild...can i move the hollow bolt back to use the nuts for the oem bracket?
i guess im confused with what to actually do. can anyone poist pics of the custom bracket they made and also where they cut the sheild back?

Thanks,
Jay

ps not to bring up an old post, but i need help

burnsauto
07-21-2009, 08:23 PM
to answer your question, I've tried this twice with two different cables, neither one gave me good results, so I'm in the process of designing a new bracket, which I'll be making a few for other zilvia members :)

(sorry to get back to you so late, i forgot all about this thread.)

2fast4y0u
07-22-2009, 07:10 AM
no problem. what i did was, pulled the shielding out of the crimped end, cut the sheidling off and then cut the metal banding that surrounds the cable. unwound all of that, and slid the hollow bolt to the spot where i cut it and forced the crimped end on to it and re-crimped. with that, i can use the oem bracket but its only held on with one bolt. if i use both bolts its at a terrible angle. oh, i had to spin the bracket 180 as well. i can take pics and point things out.
http://img149.imageshack.us/img149/6059/pic009r.jpg
http://img22.imageshack.us/img22/3569/pic010z.jpg
http://img266.imageshack.us/img266/8310/pic011.jpg

oh, and if possible, i will need some help re-hooking up my vacuum lines. i have a great guide on how to do it with the stock setup, but i want to make sure i have them all correct with the new setup.

burnsauto
07-27-2009, 01:12 AM
no problem, the vacuum lines are actually pretty simple.

small one goes to the fpr (which you tap into that lines for a boost gauge with a T fitting)

large one you can run directly to the bov, don't T anything off this one. nothing else is really required besides the WG on the intercooler piping.

I'll start making brackets that work 100% with no modifications (I'll even powdercoat them fun colors if people want) soon.

2fast4y0u
07-27-2009, 06:06 AM
awesome thanks!
let me know when u have them made, i will buy one.

u would think that with greddy making the manifold bolt up and all that, they would have accounted for the throttle cable.

FRSport.com
07-27-2009, 10:26 AM
great write up! and a clean intall

Monooxide
07-27-2009, 10:48 AM
That is a great write up, but is it true you lose a little low end response? Is that the general concensus on these?

Yes, you lose low end torque/response because the VE of the engine is shifted upward with such short length runners.

The Greddy Manifold should really only be used by people revving above 8000 RPM or are looking for a peak horsepower number as on a stock redline the delayed spool up and shortening of the usable powerband is inpractical and pointless.

burnsauto
07-27-2009, 11:05 AM
great write up! and a clean intall

Thank you, If you'd like to use it as a resource on frsport, don't hesitate to ask :)

burnsauto
07-27-2009, 01:24 PM
you can do things to counter balance the loss on the low end (which really isnt all that bad) and you have gains from 4500-5k on up.

to help the low end of things i picked up a tomei unequal length manifold to replace the shitty MR one, and paired that up with the tomei outlet, which really helps out spool time drastically compared to stock.

2fast4y0u
09-14-2009, 06:13 PM
can anyone proveide me with some info on the iacv hose routing... i bought my intake mani used and didnt get all the cool stuff from greddy so i have no clue if i have it all hooked up correctly
Jay

jspaeth
10-04-2009, 07:18 PM
I just installed this today, except for the throttle cable.

Does the direction of coolant flow for the IACV matter? My gut tells me no, but just wanted to ask.

memphis180sx
10-04-2009, 07:31 PM
awsome in write up

RbPowered240z
10-04-2009, 07:51 PM
now can someone show me how to do this with a s14 manifold?

burnsauto
10-20-2009, 01:26 PM
its not that much different from an s14 manifold...same basic ideas....


its actually more similar now with the newly designed s14sr greddy intake manifold.

s13silvia123
10-20-2009, 02:18 PM
i have a question about the IACV.

i'm thinking of deleting it on my greddy intake manifold.

will it affect my standalone and what measures do i take to delete it besides welding it shut or blocking it off.

this is for those who deleted the IACV

om3ga
10-30-2009, 02:59 AM
i have a question about the IACV.

i'm thinking of deleting it on my greddy intake manifold.

will it affect my standalone and what measures do i take to delete it besides welding it shut or blocking it off.

this is for those who deleted the IACV

I deleted it on mine although my engine is not running yet, i ran my dohc ka the same way with no iacv. Works fine im not sure if it will affect the standalone im assuming no because i have seen alot of standalone users running no iacv. I have a block off plate for the s13 sr if you want to get it its made out of 1/8 aluminum. Lmk

GSXRJJordan
10-30-2009, 09:38 AM
i have a question about the IACV.

i'm thinking of deleting it on my greddy intake manifold.

will it affect my standalone and what measures do i take to delete it besides welding it shut or blocking it off.

this is for those who deleted the IACV

Stew (Jonny5) deleted his on his S14 SR and said that even with his big cams, all he had to do was bump the mechanical idle (via the throttle stop set screw) up to about 1000-1100rpm and it idles great, and more importantly, it comes back from idle solidly after drifting/etc.

I thought about doing this on my RB25 Greddy manifold, but figured the high idle might be a giveaway on the street that the motors not stock, so kept it.

burnsauto
10-30-2009, 09:51 AM
yeah if its a dedicated track car, i dont see a problem with getting rid of the aicv, but my general rule is if it on the street more times than the track, run the aicv.

Its really not that hard to hook up, its one plug, and two hoses. woohoo.

rebornS14
01-23-2010, 01:26 PM
sorry to dig up old threads but what do i do with the two hoses that are supposed to connect to the throttle body?

!Zar!
01-23-2010, 01:33 PM
sorry to dig up old threads but what do i do with the two hoses that are supposed to connect to the throttle body?

Coolant hoses.

om3ga
01-23-2010, 03:28 PM
sorry to dig up old threads but what do i do with the two hoses that are supposed to connect to the throttle body?

Bypass them, just run one long hose to both ends. Its better that way, unless you live in the snow.

rebornS14
02-06-2010, 12:32 AM
got it. had to drill out the tabs to line up with the manifold. thanks guys.

2fast4y0u
02-07-2010, 07:41 PM
^ you have to modify the tabs if im not mistaking...i didnt have to on mine and it fit fine.

mikey_S13
03-01-2011, 07:06 PM
soo when you delete the IACV .. where do you run the big vacuum hose that goes to the intercooler pipe?

aa87
03-21-2011, 09:01 PM
Eliminate it.

s14unimog
03-23-2011, 01:10 PM
since this thread got dug up I want to remind everyone of the dangers of running the S14 pulley on the GReddy or GReddy style intake manifold. The stop on the pulley WILL hit before your pedal hits the floor. I have destroyed a head by sucking in the screws from the throttle plate after it broke. Effectively that little stop will support your "floored" foot pressure and transfer that load into the throttle plate hinge separating it at the first screw hole. The only solution to safely run this setup is to add an additional stop to the bottom of your pedal. I now weld my throttle plate screws to the hinge just encase. Don't suck in a screw!!!


soo when you delete the IACV .. where do you run the big vacuum hose that goes to the intercooler pipe?

it's not a "vacuum" hose.

BlackZenkiS14
07-11-2011, 08:57 AM
Subscribing, so I can easily find this and reference it later.

EsChassisLove
07-13-2011, 08:33 AM
What is the hose connected to the cold pipe even for? Because i dont have one lol.

And is there any way I can get one of those modified throttle cable brackets? I do my manifold Friday.

lovesilvia
09-10-2011, 02:10 PM
soooo, i installed a replica version of this intake manifold. i bought it on enjuku racing and of course looked at some reviews before and they said its work just as same. so my boyfriend and i worked on installing the intake manifold for almost 2 days. changed all the lines, re-did everything to make it look really nice.

now the problem is, when i start up the car, it does NOT hold any vacuum pressure. i went to 0 psi, and we have tried everything looked at all the lines and see what can cause this problem. so i dont know what is going on with my little silvia. if you guys can help me out this is my first car and the first time i ever fixed a car.

1989 240sx Coupe
Sr20DET Black Top E5
Fadanza 11 lbs flywheel
ISIS 3 inch full exhaust
Megan Exhaust Manifold
Greddy RS BOV
FMIC
I just bought a S-AFC II not hooked up yet
and so much more.

my co-worker at work told me it could be that my intake is holding more air.?? do you think that it can air fuel? or something i really need the help!!

thanks in advance.

s14unimog
09-10-2011, 08:06 PM
What is the hose connected to the cold pipe even for? Because i dont have one lol. And is there any way I can get one of those modified throttle cable brackets? I do my manifold Friday.

The connection is to provide your IACV with a metered air supply to control idle. The SR can be run without one but it'll need to be properly deleted and you'll need to adjust the throttle body to maintain an idle; the revs will have to be higher as well.


we have tried everything looked at all the lines and see what can cause this problem.

my co-worker at work told me it could be that my intake is holding more air.?? do you think that it can air fuel? or something i really need the help!!



Look again or pressure test the charge system to inspect for leaks. Something is obviously leaking. Your co-worker is an idiot, increasing the plenum capacity has nothing to do with issues holding vacuum. You shouldn't install parts you don't understand....

lovesilvia
09-10-2011, 11:14 PM
You shouldn't install parts you don't understand....??

this is my first car i was trying to fix.. and i've asked my friends and they said it might be my MAF? i have no freaking idea im still learning how to do this. how would i check the pressure ?

2fast4y0u
09-15-2011, 07:43 AM
Here is a link to make one
How to make a homemade boost pressure tester for a turbo car | Video « Wonder How To (http://www.wonderhowto.com/how-to-make-homemade-boost-pressure-tester-for-turbo-car-265302/)

could be intake manifold gasket...did you replace it when you installed the new plenum. if so, what gasket did you use?

also, check to make sure all the plugs in the bottom are secure. they are there for various vacuum sources and if they are not sealed properly, they will leak.

BNASTYs13
09-15-2011, 07:49 AM
nice write up. just helped me out

coupster
09-15-2011, 08:30 AM
Great writeup, the only thing I would say is in your step two in the beginning about letting fuel pressure drop waiting a few hours is not necessary. What you could do is remove the fuse for the fuel pump try to start the car and run it until it dies. That should do the trick removing fuel and pressure from your lines. When your done you put the fuse back in and she should start up like a champ.
Good luck guys!

nissanduster
09-16-2011, 10:43 PM
really nice man

heiyuu
09-16-2011, 11:31 PM
Great writeup, the only thing I would say is in your step two in the beginning about letting fuel pressure drop waiting a few hours is not necessary. What you could do is remove the fuse for the fuel pump try to start the car and run it until it dies. That should do the trick removing fuel and pressure from your lines. When your done you put the fuse back in and she should start up like a champ.
Good luck guys!

Hey I was thinking the same thing! Except you could just unplug the fuel pump in your trunk.

Had to do this trick unplugging the FP before I changed my fuel pump, and also upgrading to a 300zx fuel filter!

yeeaaboyyy1369
12-04-2011, 09:16 AM
sorry to dig up an old thread, but i had a shop do mine when they put my new motor in (i work alot, so i had to send it off). its a knockoff but looks exactly the same. they gave the car back, and said they couldnt figure it out.... so now the car starts, runs at like 1400 rpm, then chokes itself out with fuel and dies within ten seconds. i looked at the manifold, and the PCV valve isnt hooked up to anything. its just open. so where does it go? it appears everything else is correct, but that goes nowhere. also, the two bolts on the back, the outer one is connected to the brake booster, but the inner is blocked off with a screw..... any ideas? thanks!

yeeaaboyyy1369
12-08-2011, 08:31 AM
No one?

Sent from my ADR6400L using Tapatalk

conrad_s13.5
12-08-2011, 08:46 AM
nothing should be blocked off.
im not 100% to be able to tell you, but i know i just looked at my stock set up and just set it up the same and never had a problem,... i can get a pic of mine up later tonight if there isnt a definatly answer up by then.

yeeaaboyyy1369
12-08-2011, 08:54 AM
nothing should be blocked off.
im not 100% to be able to tell you, but i know i just looked at my stock set up and just set it up the same and never had a problem,... i can get a pic of mine up later tonight if there isnt a definatly answer up by then.

I can't find any missing or broken lines other than that, but there is a two prong harness right there that isn't connected to anything. It comes out of the same harness as the injectors, and tees off. One side goes to this two prong, the other side goes to the four prong iacv harness.... What's this supposed to go to? It's the only thing I can find that looks out of place

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Seraphim38
12-08-2011, 09:42 AM
does anyone have a before and after dyno sheet for the installation of only a Greddy Intake Manifold, on say a GT2871R powered SR20DET? I haven't ever seen one and don't know how much there is of a loss of bottom end and gain to top end really is.

slider2828
12-08-2011, 01:48 PM
I don't think off hand.... I was on stock manifold and just got an ISIS, but I need an engine rebuild sooo might not be till next year, but I will post back then.

conrad_s13.5
12-09-2011, 08:05 AM
I can't find any missing or broken lines other than that, but there is a two prong harness right there that isn't connected to anything. It comes out of the same harness as the injectors, and tees off. One side goes to this two prong, the other side goes to the four prong iacv harness.... What's this supposed to go to? It's the only thing I can find that looks out of place

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that 'injector harness' shouldnt have anything else coming off it?

but i know there is your 02sensor right there,. and thats a 2 prong..?

yeeaaboyyy1369
12-09-2011, 08:09 AM
that 'injector harness' shouldnt have anything else coming off it?

but i know there is your 02sensor right there,. and thats a 2 prong..?

02 sensor is three prong? And it comes right off the harness that goes down to the iacv

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Az240sxs13
06-11-2012, 11:11 PM
Ok guys, I've installed a few, and the first time I did it...we had very little information on how to do it. The instructions that Greddy gives you are decent, but the whole "not in english" thing can be a pain, especially when you're trying to figure out the right way to do it, based off pictures. I haven't found a 100% complete write up yet, so here we go.


S13 SR GREDDY MANIFOLD INSTALLATION:


Getting Started:

1. Spend 15 hours polishing it (optional).
2. Let the car sit for a few hours, letting the fuel pressure drop down to a minimum.
3. disconnect the battery
4. I usually put vice grips on the fuel lines before I disconnect them, this helps stop fuel from flowing out of the lines when i take them off. If you have them, I'd do this when removing the fuel lines from the rail.
5. Drain the coolant.

Stock OEM manifold removal:

5. Disconnect the following plugs on the wiring harness. CAS, TPS, Coolant temp sensor, 4 injector plugs (and the two grounds that bolt onto the last runner of the intake manifold) o2 sensor, knock sensor, Idle air control valve (both of these plugs are between the 3rd and 4th intake runners, bolted down to the OEM manifold, you can actually just unbolt the bracket that holds the plugs down anyways, it needs to come off) After you disconnect all of them, you should be able to move the harness out of your way. Also, disconnect the main ground wire from the manifold. Its held on by one bolt on the bottom half of the manifold, the surge tank.

6. Disconnect the throttle linkage. easy enough to do.

7. Disconnect the fuel rail. It should be held down by a few bolts, just make sure you dont lose the plastic spacers behind those bolts, or the rubber grommets the fuel rail goes into. Once the rail is off, just screw the bolts back in the OEM manifold with the spacers, so nothing is lost later on.

http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2402-1.jpg

8. Removal of manifold. Its actually not that bad. There are 6 Bolts, and 2 studs with nuts at both ends, that hold the manifold to the head. Underneath is a different story. there are a few brackets that hold that sucker up that you'll need to take off, and you won't need them ever again, they just get in the way later on. You'll have a small pile of brackets that you'll never need again. Just use trial and error, if its not breaking free, try to figure out whats still holding it on. This takes a few minutes.

9. Coolant hoses. Once the manifold breaks free you'll notice that there are a few hoses that are still attached to the AICV (idle air control valve) and throttle body. flip the manifold on its side and disconnect the hoses from it (this is why you need to drain the coolant.) Also, if you haven't noticed yet, you'll need to disconnect the two coolant hoses running to the throttle body.

10. Plugging and new hoses: The two hoses that ran to the throttle body, need to be cut, and plugged up (greddy provides plugs for you, if you lose them, bolts will work). Just cut the hoses short, but leave enough room for the plug and a hose clamp to go on. The only thing these hoses do, it try and help out with cold starts in the mornings/night. If you're adding this manifold, its not because you want reliability. Next, follow greddy's directions with the AICV hoses. The bottom hose (when looking at the engine block) needs to be replaced with a longer one that wraps around the IACV (prob around 9-10") and the top hose needs to be replaced with a hose to go onto the other fitting on the IACV (around 8" iirc)

IACV with the new hoses mocked up before bolted down to the manifold. (this is the way it will sit on the greddy manifold.)
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2559.jpg

-Messing with the OEM manifold-

A few things need to be removed from the stock SR manifold.

•Throttle body w/ 4 allen head bolts. (try to save the gasket if you can, if not a ka one is the same size as the oem sr tb)
•Throttle cable bracket w/studs.

-stud removal-
The best way to remove the studs is quite simple. (don't try to get them out with vice grips, you'll screw up the threads most of the time and its not worth messing it up.) After you remove the two 10mm nuts that hold on the bracket, screw one of the nuts on the stud all the way. Next take a washer from the bracket you just took off, and put it on over the nut. Continue by screwing the other nut over on top of the washer. The arrangement should be nut, washer, nut. using a 10mm socket, tighten down on the top nut until you notice the stud break free (it’ll move forward a little bit) Once this is done, take a 10mm open end wrench, and bring the stud out with the first nut you put on. The washer and top nut will keep the bottom nut from spinning off. After you have removed the stud, NOW you can use a pair of needle nose vice grips to grip onto the center part of the stud (part with no threads on it) to loosen the nut/washer arrangement you put together.

•IACV (idle air control valve) You’ll need to separate the stock OEM manifold, and unbolt the runners from the surge tank to get to the four (4) bolts that hold the sensor on. Give it a good tug and it should come off the tank. If you can save the gasket, try to do so by scraping it off gently with a fresh razor blade. If you rip it, you’ll have to order a new one from Courtesyparts.com - Genuine Nissan Parts, Accessories, NISMO and Nissan Motorsports (http://www.courtesyparts.com), as i haven’t found a USDM match.
•brake booster vacuum fitting. Its a zink coated elbow fitting on the back of the surge tank

Yar she is.
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2557.jpg

Separation of the runners and surge tank to get to the IACV
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2558.jpg

Installation of the Greddy manifold.

http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2551.jpg

1. With the gasket, install the IACV on the bottom of the greddy manifold.

2. Screw in the two fittings in the back of the greddy manifold, the brake booster fitting from the OEM manifold, and the swivel fitting provided with the new manifold. You can use teflon tape with these two fittings if you’d like.

3. Screw in the 3 Allen head plugs in the bottom of the greddy manifold. These can be used as other vacuum ports, but for a normal setup, aren’t needed.

4. Bolt in the two Vacuum nipples at the front of the manifold. These screw in below the throttle body, small one is for the fpr signal, larger one for your blow off valve.

5. Clean the head of all gasket material, grease, etc. The cleaner the better.

6. Bolt down the greddy intake manifold. Isn’t it pretty?

7. Clamp down the hoses for the IACV (you can get to them pretty easily now, no?) Longer one goes on the front fitting, shorter hose on the rear fitting.

8. If you havent noticed by now...the hoses for the PCV
valve and brake booster won’t work anymore. The PCV valve hose you can make pretty easily..just be creative. the stock hose for the brake booster vacuum fitting needs to be trimmed a bit (refer to greddy’s picture) or, just get some new hose and call it a day.

9. Install fuel rail.

-rail prep-

•Two brackets need to be cut/trimmed. the middle bottom one needs to be cut off completely, and the small tab on the back bottom one needs to be cut off. I used a small mini hack blade to do both and smoothed down the edges with a file.



•The stock fpr won’t fit correctly like it did on the OEM manifold. You can either a) rig it up and have it look terrible and not care b) take pride in your work and do it right the first time. Greddy makes a fitting for ~$50 that allows you to clock the fpr at a 90º angle, fits nice and clean, no messy fuel lines or cut up fpr’s. 240SXMotoring - Nissan 240SX High Performance Parts and accessories at Competitive Prices (http://www.240sxmotoring.com) has the fitting, not sure about any other places.

Greddy FPR fitting.
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2549.jpg

Now that all the prep for the rail is done, you can bolt it down, using the OEM rubber bushings, where the injectors meet the manifold. Make sure everything is snug when you bolt it all down.

10. Install the fuel lines. The feed line (one with the fuel filter) goes to the far end of the rail, near the 3rd and 4th runners, and the return line comes off the FPR. You’ll need roughly 2 feet of high pressure fuel line for the new feed line, remember to use fuel injection clamps only, don’t want any leaks now, do we?

11. Bolt down the throttle body w/gasket, and run the new intercooler piping.

12. You’ll need a little less than 2’ of 3/4” hose to connect the AICV to the intercooler piping, piece of cake.

13. You can now reconnect the throttle cable, using the OEM studs, and either, A) make your own cable bracket or, B) use the old bracket, but modify the throttle cable.

Many people just make a new bracket, its much easier. If you decide to use the OEM bracket, you’ll need to use an S14SR throttle pulley, and also cut up the throttle cable a little bit. You need to cut part of the sheathing away (behind the thick rubber part, where the cable end comes out....BEHIND THAT) so the cable has more slack to it. If you decide to do this, do a little at a time until its just right.

S13 SR throttle body, with the S14 SR pulley installed. (I cut my coolant inlet/outlet on the bottom of the tb off, makes it look much cleaner since I didn't use them anyways)
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2543.jpg

14. After this is done, reconnect all the wiring. The knock sensor, and AICV plugs don’t need to be on that bracket anymore, and can just be tucked under the manifold. Remember to connect the two grounds for the injectors, or you’ll be left scratching your head of why the car isn’t starting. Don’t forget the main ground for the engine, which can be bolted right underneath the throttle body.

To clean up the wiring I lengthened the injector plugs on the harness, so they can come up between each runner, so you only see the plug. Came out great, I'm glad I took the time to do it.
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2581.jpg

15. Fill the coolant system, bleed it out, make sure everything is secure and connected where it needs to be, and start her up!

Buttoned up and ready to go :)
http://i34.photobucket.com/albums/d115/slavetopaint/IMG_2592.jpg

You’ll notice you’ll lose a little on the low end, but this manifold loves to perform above 5500 rpm, and really can make a difference for those of us who love top end power.

Master Parts List:
• Greddy manifold - shop around, find a good deal.
• FPR fitting - 240SXMotoring - Nissan 240SX High Performance Parts and accessories at Competitive Prices (http://www.240sxmotoring.com)
• S14 SR Throttle Pulley - FRSport.com - Aftermarket Performance Parts (http://www.frsport.com)
• Intercooler piping - Courtesyparts.com - Genuine
Nissan Parts, Accessories, NISMO and Nissan Motorsports (http://www.courtesyparts.com)

**** If you're installing on a SOHC KA chassis, you'll need a DOHC throttle cable.****


If you have anything to add, by all means. let me know, and if I didn't cover it, I'll include it (I wrote this entire thing off memory) I'll be adding pics very soon.

:bow:
-Jared

under the manifold for the ports what did you use has nipples?
Would really help me out. Thanks.

Sileighty_85
06-11-2012, 11:30 PM
Wow, was it totally necessary to Quote the whole fucking post?

speedracer5
08-31-2012, 07:39 PM
hahah subscribed for when my part comes in

singlejzpower
03-02-2013, 08:26 PM
awesome write up, couldnt of been more helpful!!

Solo70510
02-28-2018, 09:47 PM
Great write up...Sucks you can't see any of the photo bucket images.