RB FAQ

[eklips3]

Originally Posted by !!chuy!!

best way i can explain it....if you were to tie a rope or long string to your pant in the back and walked and someone was behind that string and gave it a little tugg back .

oh , kind of like the car is bucking .

sounds llike ignition issues.

[voodoo_child]

need help guys. a friend of mine just had an RB25 swap on his hatch. now the car is not runnin good. the car just dies while driving and/or sometimes wouldnt start. whenever we disconnect the CAM sensor (the one in the front) connector and plug it back in the car starts right away. is this a CAM sensor problem or timing problem? need help from you guys.

[eklips3]

Originally Posted by voodoo_child

need help guys. a friend of mine just had an RB25 swap on his hatch. now the car is not runnin good. the car just dies while driving and/or sometimes wouldnt start. whenever we disconnect the CAM sensor (the one in the front) connector and plug it back in the car starts right away. is this a CAM sensor problem or timing problem? need help from you guys.

if it was a timing problem then the car wouldn't run or start.
i would lean towards a CAS problem. try out a different one and see how it runs.

[voodoo_child]

Originally Posted by eklips3

if it was a timing problem then the car wouldn't run or start.
i would lean towards a CAS problem. try out a different one and see how it runs.

thank you. i will try replacing that and hopefully it will fix the problem. thus anyone here have a Cam sensor that they want to sell? im located in west covina and my friend is in rancho cucamonga.

[951's 330i]

Hey guys, posted a thread about this, but decided to post here since this is all about an RB and can help someone later as well.

My old radiator cracked, so i purchased a new megan racing one. The only issue is the fans not fitting. They are Flex-a-lite fans, but the only way i see it working is if i put the fans on the front and remove the ac condenser(sp), or if i cut the support for the radiator, but i rather not do that.

Question is, anyone know of fans that are smaller? Thanks

Edit: The fans i have look like these

http://www.flex-a-lite.com/auto/html/compact.html

Edit. Ended up taking out the condenser.

[battle_240sx]

i just put a rb20det in my car like a 3 weeks ago and it runs like crap. it came out of a running car i saw the car run the day we took it out. when we put it in my car it was running only on 5 cyl. so we changed the ignitor all of the coilpacks and the coilpack harness now it will not spark at all we used a rb25 ignitor and i think that might be the problem but i dont know. iany help would be golden cause i have a event in like two weeks and need to get the car running

[eklips3]

Originally Posted by battle_240sx

i just put a rb20det in my car like a 3 weeks ago and it runs like crap. it came out of a running car i saw the car run the day we took it out. when we put it in my car it was running only on 5 cyl. so we changed the ignitor all of the coilpacks and the coilpack harness now it will not spark at all we used a rb25 ignitor and i think that might be the problem but i dont know. iany help would be golden cause i have a event in like two weeks and need to get the car running

you cant use an Rb25 ignitor on a Rb20 , the pinout is different.

good way to check if its a coil pack is to put your Rb20 coils back in , along with your ignitor chip. turn it on , then one by one , unclip the coil to see if there is any change , if there is a change plug it back in and move onto the next one.

if it checks out that all your coils are fine , then it could be a possibility that one of your injectors arent firing. try cleaning out the male and female connectors for the injectors .

[battle_240sx]

Originally Posted by eklips3

you cant use an Rb25 ignitor on a Rb20 , the pinout is different.

good way to check if its a coil pack is to put your Rb20 coils back in , along with your ignitor chip. turn it on , then one by one , unclip the coil to see if there is any change , if there is a change plug it back in and move onto the next one.

if it checks out that all your coils are fine , then it could be a possibility that one of your injectors arent firing. try cleaning out the male and female connectors for the injectors .

it wont start at all. would i beable to change the pinout to get it to work. i did the coilpack switch thing and make sure all of the injectors a shooting and they all are.

[eklips3]

Originally Posted by battle_240sx

it wont start at all. would i beable to change the pinout to get it to work. i did the coilpack switch thing and make sure all of the injectors a shooting and they all are.

im sure you would be able to change the pinout , im just not sure how to do it.

so you unclipped the injectors one by one just like the coil pack test and you say they all work.

i guess it must be in the coil packs somewhere , check your grounds.

[battle_240sx]

Originally Posted by eklips3

im sure you would be able to change the pinout , im just not sure how to do it.

so you unclipped the injectors one by one just like the coil pack test and you say they all work.

i guess it must be in the coil packs somewhere , check your grounds.

ive done that and everything was good. so tonite me and my class are gonna build a new coilpack harness i will be sure to take pics and share with you guys. thanks very much for your help

[thrasher324]

hey how do you guys pass emission test with an RB? i just recently got a NEO rb25 s13 and i gotta do one this month but i was wondering if they'll do obd1 or 2. i heard for obd1 they just do the sniffer test or something like but which one would they do for my car? do they do it by the year of my car or the engine?

[Spitfire8o5]

Newb question... New to RB's but...

I bought an s13 coupe w/ an RB20DET and just wondering what oil filter and spark plugs they use that I would be able to get from a local autozone, kragen, carquest or napa... My current oil makes mud look thin hahahahaha not good

[bardabe]

Originally Posted by Spitfire8o5

Newb question... New to RB's but...

I bought an s13 coupe w/ an RB20DET and just wondering what oil filter and spark plugs they use that I would be able to get from a local autozone, kragen, carquest or napa... My current oil makes mud look thin hahahahaha not good

oil filter from 300ZX Twin Turbo (1990 - 1996) sparkplugs are bcpr6es-11

[Spitfire8o5]

Originally Posted by bardabe

oil filter from 300ZX Twin Turbo (1990 - 1996) sparkplugs are bcpr6es-11

Thanks man.. And PM me info on your welding diff services.. Might be interested if we can ship things.. 951 doesn't sound close to Santa Maria haha

[Sileighty_85]

Well since this has turned into a General Discussion thread I guess I'll post this

You guys that are looking for R33 Cross members Check here

http://zilvia.net/f/s-chassis/310116...r-intrest.html

[Hashiriya415]

rb20det. thread size and pitch for stock water temp sender. to gauge cluster

[eklips3]

Originally Posted by Hashiriya415

rb20det. thread size and pitch for stock water temp sender. to gauge cluster

no idea ... but you can use the KA sensor is thats what you're looking for

[Hashiriya415]

need to get adapter to change to 1/8 npt, the hole is too big for the aftermarket 1/8. I'm thinking of using a bolt then drill and tap it

[SapperKouki26]

yea idk if i miss it or what but i was just wondering what the common problems were with the rb25det series II. the only one i read about is the crank collar is a must, but also read that it is only for racing only. anyways i would appreciate your guys feedback on any problems known about the rb25det series II
Thanks

[eklips3]

one thing you should consider when doing bottom end work is replacing all the hardware with ARP products. thats your connecting rod bolts , main studs and head studs.

[Spitfire8o5]

Originally Posted by bardabe

oil filter from 300ZX Twin Turbo (1990 - 1996) sparkplugs are bcpr6es-11

no actually the sparkplugs i pulled out are PFR5A-11.. oil filter worked but i still spent an un needed amount of money today on plugs that did screw on just fine but ran horrible.. i wish i woulda just pulled out the plugs and gone from there.. and no one had them in stock so i have to wait 2 days now..

[Sileighty_85]

Originally Posted by eklips3

one thing you should consider when doing bottom end work is replacing all the hardware with ARP products. thats your connecting rod bolts , main studs and head studs.

Why? The stock block will hold up to 500hp

This guy local guy in making over 500whp completely stock even head gasket.

Probably the weakest point are the piston ring land's, but if staying under 500 and not beating the shit out of it stock bottom end should be fine

[Sileighty_85]

Originally Posted by ProjNightshade

I saw earlier in the thread that the S1 MAF is the same as J30, but what if you have an S2 RB? what us maf can I use?

Originally Posted by GSXRJJordan

I've been discussing this same thing with a few people - a lot of people say a S1 ECU will run a S2 engine, but no one seems to mention whether they're using a S1 MAF or S2 MAF. The diameters are the same, and they're rumored to read the same, so it's possible they have compatible internals and just different plug.

I'm interested in anyone who's done some actual testing here!

Fun Fact: Ran the part Numbers in FAST and Came up with this from the E61 MAFS

Which is apparently the same as a certain J30 MAF


(pic is here but Zilvia is not showing pics right now for me at least)


Then This one is for the E60 MAFS


Then the J60 RB20/25 S1 MAFS

[bardabe]

Originally Posted by Spitfire8o5

no actually the sparkplugs i pulled out are PFR5A-11.. oil filter worked but i still spent an un needed amount of money today on plugs that did screw on just fine but ran horrible.. i wish i woulda just pulled out the plugs and gone from there.. and no one had them in stock so i have to wait 2 days now..

did you gap them properly? heat range 5 plugs are mighty hot spark plugs. I had personal good experience with those plugs, and many other Nico RB guys. (sadly NICO's RB section really is better than zilvia's no lie) even my friend is running them on his RB26 and runs great does not skip a beat.

[951's 330i]

Hey everyone, quick question.

Im thinking of doing a holset turbo setup on my car. See, from way older posts, that if i can come up on a hks or apexi manifold, i should get that. I think thats what im understanding. Im looking to get the holset hx35 turbo.

I found a hks manifold, and finally also the turbo but the thing is i only have enough money for one. Both for around the same price.

I gues my real question is, should i get the manifold or the turbo right now? And if this manifold is worth it for that turbo? Thanks all/ Need the advice asap!

[eklips3]

just wait buy the manifold and the turbo at the same time. so then your not lke " ok i have a turbo but no manifold .. no i have to play the waiting game" .
get it all at once and install it all at once

[951's 330i]

Originally Posted by eklips3

just wait buy the manifold and the turbo at the same time. so then your not lke " ok i have a turbo but no manifold .. no i have to play the waiting game" .
get it all at once and install it all at once

Lol thats wat i had planned on doing, but i heard that manifold is really hard to come by. That or the Apexi one. So since i just now saw it, i was thinking i should get it. Lol I HATE THE WAITING GAME

[bardabe]

get the manifold they are allot hader to come by, Holset turbo's pop up a little more often in good condition worse case senario we can get you a new one from a shop in OC called Turbo City

[951's 330i]

Originally Posted by bardabe

get the manifold they are allot hader to come by, Holset turbo's pop up a little more often in good condition worse case senario we can get you a new one from a shop in OC called Turbo City

Yeah i was trying to get that manifold yesterday, but the last like 30 seconds it went from 220 to like 375 lol i lost

[repda916]

i need a oil return line the one that goes from the turbo to the block.
anyone ever make one of these from some type of manifold or home depot remedy??