Stock ECU w/S15 T28 Turbo! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

JJTRacer · 03-24-2009, 09:54 AM

Can i run a stock #62 ecu, on a redtop s13 sr with an s15 t28?

Basically this is going to be my setup until i get a little more cash.
S13 Sr20det w/s15 t28
370cc inj
fmic
n60 maf
rebuilt sr
stock ecu (not tuned)

Can i run with that around 14 psi, safely?

JJTRacer · 03-24-2009, 09:56 AM

Or any psi doesnt really matter.

Sileighty_85 · 03-24-2009, 09:59 AM

Search Next Time Breh

http://zilvia.net/f/tech-talk/194503...injectors.html

BTW Q45 MAF is Over Kill, Get a Z32 MAF

bl3ujay07 · 03-24-2009, 10:05 AM

you have safc to run your q45 maf?? Also, 14 psi is a lot. i am running a s14 t28 from 8-10 psi and it runs rich, as in i can smell it rich. MAXing out your injectors. Dont risk it on your rebuilt sr bc it will be likely that your motor will be harmed if not blown. Not worth it, just let it at stock boost or maybe 8 psi until you get injectors and a tune. my .02 cent.

i was going to link sileighty 85 site, but he beat me to it. great information tho.

JJTRacer · 03-24-2009, 10:12 AM

Okay. So ill just run the stock boost until i upgrade to 550cc injectors and ecu.

Sorry, im confused because i could remember if im buying the N60 MAf or the Q45 MAf from my buddy.

I will be running a N60 Maf.

*handinpants* · 03-24-2009, 10:24 AM

you need to either safc, or ecu tune to run the new maf, i recommend running bigger injectors, or just wait til you can install everything together,

Monooxide · 03-24-2009, 10:51 AM

I was at ~12.2 AFRs at redline on an S14 SR with OEM ECU, Injectors, MAFS and Turbo @ 12.66 PSI.

Made 273WHP and 280WTQ.

I recommend running 8~10 PSI and upgrade your setup to support 14 PSI. However I felt that nearly 13 PSI was safe given you have similar AFRs to mine, starting out at 10.8 and leaning out to 12.2.

95KA-Turbo · 03-24-2009, 11:35 AM

What kind of dyno were you using? I am not making anywhere close to that. I made 234/231 SAE corrected on my stock S14 SR with FMIC, HKS intake, 3" elbow, 3" cat, and Trust DD. That was on 12psi, on 14 I made ~248/245 SAE corrected...but that was on a Dyno Jet dyno...and my A:F is extremely unsafe at 14psi, 12psi is pretty sketchy still, so I've turned it down to 10-11psi.

A stock S13 SR with T28 shouldn't run more then 8-10psi MAX.

droptoprx-7 · 03-24-2009, 11:43 AM

yeah you will need some sort of tune with those mods

you could run the turbo on low boost with the stock maf until you upgrade your whole setup... then the fun will begin

03-24-2009, 09:54 AM	#1
JJTRacer Join Date: Jan 2005 Location: Yukon Age: 39 Posts: 36 Trader Rating: (1) Feedback Score: 1 reviews	Stock ECU w/S15 T28 Turbo! Can i run a stock #62 ecu, on a redtop s13 sr with an s15 t28? Basically this is going to be my setup until i get a little more cash. S13 Sr20det w/s15 t28 370cc inj fmic n60 maf rebuilt sr stock ecu (not tuned) Can i run with that around 14 psi, safely? Last edited by JJTRacer; 03-24-2009 at 10:14 AM..

03-24-2009, 09:59 AM	#3
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Search Next Time Breh http://zilvia.net/f/tech-talk/194503...injectors.html BTW Q45 MAF is Over Kill, Get a Z32 MAF __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

03-24-2009, 11:35 AM	#8
95KA-Turbo Post Whore! Join Date: Jul 2005 Location: LA Age: 39 Posts: 3,402 Trader Rating: (19) Feedback Score: 19 reviews	What kind of dyno were you using? I am not making anywhere close to that. I made 234/231 SAE corrected on my stock S14 SR with FMIC, HKS intake, 3" elbow, 3" cat, and Trust DD. That was on 12psi, on 14 I made ~248/245 SAE corrected...but that was on a Dyno Jet dyno...and my A:F is extremely unsafe at 14psi, 12psi is pretty sketchy still, so I've turned it down to 10-11psi. A stock S13 SR with T28 shouldn't run more then 8-10psi MAX. __________________ Instagram - SJKnoop

03-24-2009, 11:43 AM	#9
droptoprx-7 Leaky Injector Join Date: Feb 2008 Location: sc Posts: 124 Trader Rating: (2) Feedback Score: 2 reviews	yeah you will need some sort of tune with those mods you could run the turbo on low boost with the stock maf until you upgrade your whole setup... then the fun will begin __________________

03-24-2009, 09:56 AM	#2
JJTRacer Join Date: Jan 2005 Location: Yukon Age: 39 Posts: 36 Trader Rating: (1) Feedback Score: 1 reviews	Or any psi doesnt really matter.

03-24-2009, 10:05 AM	#4
bl3ujay07 Zilvia Addict Join Date: Feb 2008 Location: norcal(209) and socal(805) Posts: 691 Trader Rating: (6) Feedback Score: 6 reviews	you have safc to run your q45 maf?? Also, 14 psi is a lot. i am running a s14 t28 from 8-10 psi and it runs rich, as in i can smell it rich. MAXing out your injectors. Dont risk it on your rebuilt sr bc it will be likely that your motor will be harmed if not blown. Not worth it, just let it at stock boost or maybe 8 psi until you get injectors and a tune. my .02 cent. i was going to link sileighty 85 site, but he beat me to it. great information tho.

03-24-2009, 10:12 AM	#5
JJTRacer Join Date: Jan 2005 Location: Yukon Age: 39 Posts: 36 Trader Rating: (1) Feedback Score: 1 reviews	Okay. So ill just run the stock boost until i upgrade to 550cc injectors and ecu. Sorry, im confused because i could remember if im buying the N60 MAf or the Q45 MAf from my buddy. I will be running a N60 Maf.

03-24-2009, 10:24 AM	#6
handinpants FreshColdBeer.com Join Date: Feb 2008 Location: California Age: 42 Posts: 2,665 Trader Rating: (48) Rides Gallery: handinpants Feedback Score: 48 reviews	you need to either safc, or ecu tune to run the new maf, i recommend running bigger injectors, or just wait til you can install everything together, __________________

03-24-2009, 10:51 AM	#7
Monooxide Zilvia Addict Join Date: Mar 2005 Location: Farmington/Flint, MI Age: 37 Posts: 675 Trader Rating: (8) Feedback Score: 8 reviews	I was at ~12.2 AFRs at redline on an S14 SR with OEM ECU, Injectors, MAFS and Turbo @ 12.66 PSI. Made 273WHP and 280WTQ. I recommend running 8~10 PSI and upgrade your setup to support 14 PSI. However I felt that nearly 13 PSI was safe given you have similar AFRs to mine, starting out at 10.8 and leaning out to 12.2.