Sr20det FAQ

[Shopety2012]

Not sure to make a thread following my build because I'm sure I will be asking questions frequently, but I'm building an sr20det, check. I have a s13 red top head and s14 black top block. Now from my RESEARCH I see that it's best if I weld over the vvt oil port in the block, get it decked, then the head should work fine with the block. Can anyone confirm the conclusion I have drawn?


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[schoja]

What would be the best turbo to upgrade the stock t25 turbo on an s13 redtop? Should I just go with a t28? If so what else should I look into for maximum reliability? I'm not going to lie, I don't know nearly as much as I would like to. If someone could shoot me in the right direction, it would be greatly appreciated!

[soundboy]

first do a general service (oils, thermo, plugs), make sure you engine running properly and then upgrade.
a t28 from a s15 is a really nice upgrade.550CC injectors, z32 maf, a walbro fuel pump and some sort of aftermarket tuning is a nice base to start modding and then you can upgrade each parts to suit.

[starboarder2004]

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[ShowBoobs]

what is the torque spec for putting the valve cover back on? and is there a certain pattern of torqueing the bolts to properly seat the gasket?

[ultimateirving]

Originally Posted by ShowBoobs

what is the torque spec for putting the valve cover back on? and is there a certain pattern of torqueing the bolts to properly seat the gasket?

Valve cover shouldn't take much thought you can torque if you want but mine has never leaked and I've never torqued it

[TheRealSy90]

Originally Posted by ShowBoobs

what is the torque spec for putting the valve cover back on? and is there a certain pattern of torqueing the bolts to properly seat the gasket?

90 INCH pounds. After all the washers and nuts are hand tight do the center bolts and make up a criss cross pattern, if you have the oem washers they will align the cover.

[vJilly]

Bought a 91 s13 with s13 blacktop swap. No A/C. I want to put in A/C and I've never done anything with A/C.. HELP!


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[smoove]

Is there a workshop or service manual for redtop? I have seen nothing but the s14 sr which show to be the notch top. Would these torque specs and valve specs be the same? Any help would be greatly appreciated. Thanks for time.

[starboarder2004]

GO to the attached link and download the conversion info.*https://www.dropbox.com/s/fdntze8utk...R20DET24_1.doc

*

~Pyng Thai

Tech Support

24-1 trigger wheel ems v1

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[ultimateirving]

Originally Posted by vJilly

Bought a 91 s13 with s13 blacktop swap. No A/C. I want to put in A/C and I've never done anything with A/C.. HELP!


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Search! I put my a/c together and it's not hard. Cody ace can make you a bracket

[SoCalDrifter]

Does anyone know if you can run Tomei solid lifters with tomei lash type 260 cams?

[Future240]

Originally Posted by vJilly

Bought a 91 s13 with s13 blacktop swap. No A/C. I want to put in A/C and I've never done anything with A/C.. HELP!


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http://www.sr20acbrackets.com/

[240kaspar]

I am looking at buying an sr20 240. I was curious what the stock bottom ends are good for power wise. I've read 400whp just wanted to see what members here thought. I'm new to the a chasis world coming from ls cars and an evo.

[shawn1331]

just wondering what the max i can expec out of my red top. running basically 100% stock meaning:
T25
SMIC
OEM shrouds etc.

I have a tubular manifold and elbow to throw on and looking into a downpie. planning on boosting to 12psi, what whp can i expect?

Should i go with a mines tuned ecu/jwt?

[LoSt180]

Some gee-wiz info about the S14 SR20DET:

Gear ratios are different than what I've seen posted -
1 - 3.321
2 - 1.902
3 - 1.308
4 - 1.000
5 - 0.838
R - 3.382
FD - 3.692 (US 240s are 4.083)


All S14s came with a boost sensor, but apparently only the Zenki has this connected to the ECU. The boost sensor on the Kouki SR is there only for the optional DIN boost gauge, at least that's what I can figure from studying wiring diagrams for the past two days.

As of mid-2014, most of the images and install guides in this thread are dead links.

Since I have a Kouki S14 SR20DET, finding a wiring guide is problematic. The ECU connector for the Kouki S14 is physically the same as S13 and S15 ECUs. The pinout is not the same as the S15 as many posts seem to suggest (it's close though). Pins 1 thru 48 of Kouki S14 and S15 are about the same, pins 101-116 are different though. I'm attaching an S14a pinout that I found. It says "not JDM" but the only difference is JDM doesn't come with NATS or EGR.


Wiring pinouts: http://www.240sxforums.com/forums/sr...u-pinouts.html

[LoSt180]

S14a (Kouki) FSM supplement: http://media.sxoc.com/contributors/v...a-manual_2.pdf

Complete S14 FSM that incorporates S14a changes, and is simply easier to navigate than the Zenki FSM available in nicoclub: http://www.sxoc.com/vbb/showthread.p...op-Manual-v1-1


For the archives: PM me if these links break and I will rehost both documents.

Edit: Both manuals are now being hosted over at NICOclub. http://www.nicoclub.com/archives/nis...e-manuals.html

[vJilly]

bought a coupe with an s14 sr20det swap. car has the HUD Dash but I have a dual cam cluster. what would I need to make the HUD display work? car used to be an automatic car with working HUD if that helps in any way.


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[.db.]

I recently decided to reseal and paint my valve cover while the car was down waiting for a front mount. Only to find out afterwards the valve cover grommets dont come as a set. A few of the sites I came across list the grommets at $3-4 a piece. Needing 13 of them, that puts you at 40-50 bucks plus the gaskets. I found a part number from Beck Arnley that is a 4 pack.

Valve Cover Grommet Set (SR20DET) 4 Pieces Included (4 packs required with 3 grommets extra)
Beck Arnley
039-6430
Oreilly Auto Parts - $3.69 EA usually takes a day or two to order

http://www.oreillyauto.com/site/c/de...grommet+gasket

[240Kid415]

Need help bad Bay Area just swapped my sr into a new shell ran fine drove it to the alignment shop oil started spilling bolt came off did complete oil change drove it 1 mile to another shop heater core line snapped off the little shit allllll the way in the back bitch to do now car starts idles rough motor shakes car acts like it wants to die I hardly have any throttle response. Any ideas any people the are close that can help me out have cash just need this thing back on the road since this is my only transportation to work .

[jkrlox]

I am rebuilding my JDM SR20DET (s14) from 1997 and my repair shop has told me to buy the connecting rod bushings.

The part number for my engine is 12030-79E01

but I can't find it anywhere to buy it

My question is, the bushings from the USDM SR20 are compatible?

The part number for the USDM SR20 is 12030-60J02

[Lucas_r3is]

Can anyone tell me where I can find a tune to download sr20det red top t3t4...

[ultimateirving]

Originally Posted by Lucas_r3is

Can anyone tell me where I can find a tune to download sr20det red top t3t4...

Probably not because there is no such thing as a tune that you can just download.

What Ecu?
And what other mods have to be taken into consideration for a tune. You might be able to download a factory tune for a stock vehicle and then modify the tune to fit your add ons.

[sweetsilvia101]

I am sorry for posting, it just burns me, well there are 2 filters Nissan uses in the us, on every car, don't ask me how I know this, but there are only two, maybe a 65foo and a 55yo,?

[casual man mann]

Any idea where I can get the part number for the two front head bolts? Buddy's builder neglected to include them

[caglej]

Originally Posted by Shopety2012

Not sure to make a thread following my build because I'm sure I will be asking questions frequently, but I'm building an sr20det, check. I have a s13 red top head and s14 black top block. Now from my RESEARCH I see that it's best if I weld over the vvt oil port in the block, get it decked, then the head should work fine with the block. Can anyone confirm the conclusion I have drawn?


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Does anybody have any info on this?

[jbjslambert]

Originally Posted by Shopety2012

Not sure to make a thread following my build because I'm sure I will be asking questions frequently, but I'm building an sr20det, check. I have a s13 red top head and s14 black top block. Now from my RESEARCH I see that it's best if I weld over the vvt oil port in the block, get it decked, then the head should work fine with the block. Can anyone confirm the conclusion I have drawn?


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Will work fine. Plug it dont weld it. When you deck the block, make sure you mill the front cover also(oil pump). If not you will have a ledge there when you go to put it all back together

[caglej]

Originally Posted by jbjslambert

Will work fine. Plug it dont weld it. When you deck the block, make sure you mill the front cover also(oil pump). If not you will have a ledge there when you go to put it all back together

What are you plugging it with?

[Confuzedd]

Does anyone know if an AC compressor from a 1992 SR20DE will fit a s15 sr20de ?

[S13_K3VIN]

hello my name is kevin. i got a 1990 240sx hatch with a sr20det swap. would the engine start without the cam angle sensor cap?