Safe boosting PSI T28? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Lucas180 · 08-17-2009, 07:20 PM

Hey guys..just a question i have about boosting..ive had my SR for a over a year just running stock 7 PSI of boost red top SR with a T28 from a black top sr and the intercooler is just stock sidemount.

car also had 580cc injector ..and a nismo FPR that as far as i know ..is really doing nothing at stock PSI..

so tonight i took off the vacumme line as did a few pulls at 20 psi.. just i guess letting the turbo go on its own..

im wondering im pretty sure its not smart to do that but now im looking at manual boost contrllers to run the car at what i think is safe psi of 14?

what am i going to be wearing out faster with a higher PSI whats working harder to get this ..ect

also should i adjust the BOV spring if i go higher PSI i have a greddy type R .

sorry id this post is a bit disorganised but i think you get the idea..

*fliprayzin240sx* · 08-17-2009, 08:06 PM

Wait...20 psi on a stock side cooler?!?! Sell the car and go buy an NA car before you blow the engine up. 14 psi, the turbo is pretty much at its maxed efficiency. Anything more than that, you're just pushing hot air into the engine. Having a side mount makes its worst. Having no tuning turns your engine into an airpump. Airpumps like to give you rod knocks or worst, give you a new oil drain on the side of the block when the rods blow up.

So again, 20 psi with no tuning on a stock engine with no tune...sell the car and get an NA before you blow it...

NiSmOKnIghTsRBS14 · 08-17-2009, 08:12 PM

Quote:

Originally Posted by fliprayzin240sx

Wait...20 psi on a stock side cooler?!?! Sell the car and go buy an NA car before you blow the engine up. 14 psi, the turbo is pretty much at its maxed efficiency. Anything more than that, you're just pushing hot air into the engine. Having a side mount makes its worst. Having no tuning turns your engine into an airpump. Airpumps like to give you rod knocks or worst, give you a new oil drain on the side of the block when the rods blow up.

So again, 20 psi with no tuning on a stock engine with no tune...sell the car and get an NA before you blow it...

+++++++++++++1

P.S your lucky it didnt blow up at 20 psi....

Sileighty_85 · 08-17-2009, 09:10 PM

Quote:

Originally Posted by fliprayzin240sx

Wait...20 psi on a stock side cooler?!?! Sell the car and go buy an NA car before you blow the engine up. 14 psi, the turbo is pretty much at its maxed efficiency. Anything more than that, you're just pushing hot air into the engine. Having a side mount makes its worst. Having no tuning turns your engine into an airpump. Airpumps like to give you rod knocks or worst, give you a new oil drain on the side of the block when the rods blow up.

So again, 20 psi with no tuning on a stock engine with no tune...sell the car and get an NA before you blow it...

agreed,

your also running the risk of running lean and welding the pistons to the cylinder walls. Not to mention blowing you head gasket (if the engine doesnt already have a metal one)

Seriously though why the hell would you think that was ok? fuckin kids buying and fucking with shit they dont understand.

you should unplug an injector or two and run it, you'll save gas that way

For you questions, Do some research here everything been covered hundred of times.

mayco_86 · 08-17-2009, 11:11 PM

Quote:

Originally Posted by NiSmOKnIghTsRBS14

+++++++++++++1

P.S your lucky it didnt blow up at 20 psi....

Yea listen to this guy he already went through all that. LOL JK BAHHH!!!!

240sxxs · 08-17-2009, 11:31 PM

SR20 Motor can handle The boost Safely and reliable only at 13-15 Psi...whatever after that point..say good bye to ur piston..cause it will melt like caramel

*fliprayzin240sx* · 08-18-2009, 12:26 AM

Quote:

Originally Posted by 240sxxs

SR20 Motor can handle The boost Safely and reliable only at 13-15 Psi...whatever after that point..say good bye to ur piston..cause it will melt like caramel

See what youre saying is partially true, technically, the SR cant be reliable for more than 10 psi. Thats assuming everything is stock and you didnt do anything else to it other than crank the boost.

You can make these engines dependable and handle alot of power, record on a stock engine hp wise is over 600hp. But thats the thing, thats with the correct supporting mods and proper tuning. Just start cranking the boost by disconnecting the vaccum line into the wastegate will not make that engine last.

zenki.life · 08-18-2009, 01:45 AM

reliably 6-8. and im being a complete realist.

Lucas180 · 08-18-2009, 08:40 AM

alright thats what i thought its not good for the engine...it was only for about 10 minutes just drive around the block a few times casue i know its not safe..

but maybe 10 is safe. on stock with no tune.. is what your saying.?

lflkajfj12123 · 08-18-2009, 10:38 AM

lol you drove around the block like that at 20 psi probably doing pulls

bwahaha

you're a genius

do not touch the boost

Lucas180 · 08-18-2009, 12:30 PM

im making myself sound so stupid on here..lol you all probly think i just bought my car with a sr and know nothing..not true i put the sr in and learned quite a bit about stuff but have never played with boost the only reason i did last night is casue a friend came over and showed me how to but i really dont think its a safe way.

so yeah its back to stock 7 PSI now..but i felt that 20PSI and i want that power..or at least some of it ..but i want it safely to not break the engine or blow the turbo..

i was gonna get a manual boost controler and a fmic..would it be safe to use 14 PSI like that ?

240sxxs · 08-18-2009, 01:01 PM

Quote:

Originally Posted by fliprayzin240sx

See what youre saying is partially true, technically, the SR cant be reliable for more than 10 psi. Thats assuming everything is stock and you didnt do anything else to it other than crank the boost.

You can make these engines dependable and handle alot of power, record on a stock engine hp wise is over 600hp. But thats the thing, thats with the correct supporting mods and proper tuning. Just start cranking the boost by disconnecting the vaccum line into the wastegate will not make that engine last.

yea bro i totally know what you are saying ..but my SR are build..so i prob take my point of view to talk to him..cause i forgot his motor is stock...but here the list of my mod

S14 SR20DET (rebuilt 10k miles ago)
Power FC D-Jetro with hand controller
Forged aluminum pistons
Stage 3 272 Brian Crowler cams
Tomei Adjustable cam gears
Brian Crowler valve springs and retainers
Cosworth Head gasket
Circuit sports Rocker arm stoppers
Powdercoated valve cover Anthracite Candy Blue
HKS Blow off valve
Koyo Radiator
Large Front mount intercooler
Taka Steel Braided Turbo lines
HKS 3" Hi-Power exhaust
Exedy stage 2 clutch
Exedy flywheel
Agency boost controller (never installed)

stimracer · 08-18-2009, 01:20 PM

Wow, this is good information for me to know whenever I get my SR built and swapped in. I just planned on tuning to around 10psi just to be safe. I want an SR that'll last. Good luck tho lucas!

0wn3r · 08-18-2009, 02:02 PM

right when you put those injectors in you should have gotten it tuned for higher boost...along w/ getting rid of that stock sidemount as already mentioned. you're right, the fpr isn't needed for your setup.

you can't just put injectors in and turn up the boost and think the computer will know what it's doing. When it sends the signal to fire the 370cc injectors, it doesn't realize it's firing the "580cc's" you have in there. so if it throws more gas you think that adding 10 to 20 psi will balance the rich mixture throughout your entire rpm range / throttle input?

i can't imagine how you did the swap successfully and don't know this stuff...

SILVIA_KIDs14.5 · 08-18-2009, 02:13 PM

i'd agree wit most ppl here but again the sr can handle boost don't sleep you guys its not the tune that he'd have to worrie about if you noticed he does have rather large injectors in there for one and two what kinda t28 you runnin it depends if its a stock one or not if its a s14 or s15 or if its a big t28 who knows but yes you can do so depending on what turbo it is you will heat soak rather quick but shouldn't blow anything up just have to make sure you get your self a front mount asap cuz your robbing your self of power other wise and can potentially do some damage to the engine

SILVIA_KIDs14.5 · 08-18-2009, 02:16 PM

Quote:

Originally Posted by stimracer

Wow, this is good information for me to know whenever I get my SR built and swapped in. I just planned on tuning to around 10psi just to be safe. I want an SR that'll last. Good luck tho lucas!

to note the sr when built properly will handle anything you throw at it just look at mazworx sr 1500wrhp i mean come on ppl search don't miss lead its not the boost you need to worrie about i've seen ppl and reliably doing so boost 25psi to 30psi on the sr all day doesn't mean its not gonna last if you don't take care of it and don't build it correctly then ya your gonna be the guy who just runs 10psi to be safe or you'll be the guy that blows his shit to kingdom come

240sxxs · 08-18-2009, 02:22 PM

I build my Sr From my friend most reliable reputator shop In ARIZONA called Fuled performance where they mostly speciallize in SR AND CA OR RB only...im sure mine can handle prob max too 20psi.. but not sure.. will insert 660cc sard injector and will be tune next week and let see what it put down ..

rc1honda · 08-18-2009, 03:13 PM

This thread is a failure. Steve Shadows sold a car here on zilvia that made over 500hp with the stock bottom end. The SR can handle a lot of power. There are a lot of things that go into building a reliable motor.

Buy a turbo that will be efficient for your power goals. Have the fuel system in place to feed all that boost. Have the proper engine managment. SAFC's are cheap, but standalone's make you car run like it just came from the factory. Supporting mods are essential as well. Quality parts. Wastegates, BOV"S, front mounts, throttle bodies, intakes, MAF's, injectors, cams and oil coolers the list goes on and on. All the ancillary stuff is what makes reliable power. Be thorough, do research. Never unplug the vac source from the wastegate. If your not sure, search or don't do it. 240sxxs your car should handle 20 psi no problem if you have the right tune and supporting mods. Head studs and a good head gasket most likely will need some cams to.

*fliprayzin240sx* · 08-18-2009, 04:31 PM

My only question is he said he got 580cc injectors. Who makes 580cc injectors?!?! Also, if he does have larger injectors and they fuel map is corrected for it, how is it tuned? Rom tune or by other means? If its not a rom tune, how is it "tuned"? Tuned for 7 psi since thats all it could run?

0wn3r · 08-19-2009, 10:59 AM

Quote:

Originally Posted by SILVIA_KIDs14.5

i'd agree wit most ppl here but again the sr can handle boost don't sleep you guys its not the tune that he'd have to worrie about if you noticed he does have rather large injectors in there for one and two what kinda t28 you runnin it depends if its a stock one or not if its a s14 or s15 or if its a big t28 who knows but yes you can do so depending on what turbo it is you will heat soak rather quick but shouldn't blow anything up just have to make sure you get your self a front mount asap cuz your robbing your self of power other wise and can potentially do some damage to the engine

Quote:

Originally Posted by SILVIA_KIDs14.5

to note the sr when built properly will handle anything you throw at it just look at mazworx sr 1500wrhp i mean come on ppl search don't miss lead its not the boost you need to worrie about i've seen ppl and reliably doing so boost 25psi to 30psi on the sr all day doesn't mean its not gonna last if you don't take care of it and don't build it correctly then ya your gonna be the guy who just runs 10psi to be safe or you'll be the guy that blows his shit to kingdom come

punctuation and paragraph-sized run on sentences ftw

conrad_s13.5 · 08-19-2009, 11:15 AM

shit,......ive been on 14psi for about a year and a half now w/ fmic.

buuuuuuuuuuuuuut,.. i wouldnt think of turning it up anymore than that.

240sxxs · 08-19-2009, 11:32 AM

Quote:

Originally Posted by conrad_s13.5

shit,......ive been on 14psi for about a year and a half now w/ fmic.

buuuuuuuuuuuuuut,.. i wouldnt think of turning it up anymore than that.

your lucky my firend

Sileighty_85 · 08-19-2009, 03:42 PM

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

Lucas180 · 08-19-2009, 03:43 PM

Okay let me explain in a little more detail

i bought a clip from a slivia with a redtop SR

40,000 k on it

i spent a bit more because it came with

S14 blacktop T28 stock turbo
unknown brand 580cc injector
Nismo FPR
M's intake
and the ECU has a switch on it witch i was told was for a 'fuel saver mode'
other then that i can only assume it was stock internals

the engine has this sticker

Does ANYONE know what this is ?? K's ROM ?
also the injectors have a spacer on them :

again no clue why it has that spacer..

ive driven and drifted this setup for the last year with no problems what so ever except having to change turbo gaskets and manifold.

full compression still great engine at 7 PSI never higher. engine now has about 60,000 k on it

i had the car on dyno with the switch both ways and no power differences either way.

anyways, i forget what im even asking to do anymore ide like to run more boost but i dont want to break anything pre maturly i guess my first step would be to get a FMIC before i even touch anything.

then maybe go to 10 PSI

damn 20 felt good though lmao.

Lucas180 · 08-21-2009, 11:32 AM

anyone know ?

flip3d · 08-21-2009, 12:31 PM

11psi. do it.

S13 is 11.5 stock. I can't imagine the S14 SR being any different. T28 would explain the higher power output.

I'm so tired of seeing 7psi stock. The wastegate is set at 7psi. No one ever gets that nice little FACTORY boost solenoid.

This thread even says the safest is .8 bar which is 11.5 psi.

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

Homer_Simpson · 08-21-2009, 12:43 PM

Quote:

Originally Posted by flip3d

11psi. do it.

S13 is 11.5 stock. I can't imagine the S14 SR being any different. T28 would explain the higher power output.

I'm so tired of seeing 7psi stock. The wastegate is set at 7psi. No one ever gets that nice little FACTORY boost solenoid.

This thread even says the safest is .8 bar which is 11.5 psi.

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

More like that's the first thing they tossed from their swap. I wired mine in and I'm enjoying it.

Silverbullet · 08-21-2009, 03:14 PM

since you have a Nismo FPR, what is your fuel pressure? If it is set higher than stock, some upped boost wont hurt. Your ECU has been retuned by someone, but they use different fuel in Japan, so it may or may not help.

Id be safe and get it all done right by getting an FMIC, and a proper tune.

*wangan_cruiser* · 08-22-2009, 05:42 PM

Quote:

Originally Posted by flip3d

11psi. do it.

S13 is 11.5 stock. I can't imagine the S14 SR being any different. T28 would explain the higher power output.

I'm so tired of seeing 7psi stock. The wastegate is set at 7psi. No one ever gets that nice little FACTORY boost solenoid.

This thread even says the safest is .8 bar which is 11.5 psi.

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

i think i have that solenoid. but havent installed it.

*fliprayzin240sx* · 08-22-2009, 07:20 PM

Honestly, you'll never know what that ECU is tuned for. First off, do you have a larger fuel pump or stock? Need to upgrade that first if you want anything more boost wise. Then get an FMIC. You want to crank the boost up, get on a dyno or get a wide band o2 sensor and slowly tweak your boost up and see where it starts leaning up.

08-17-2009, 07:20 PM	#1
Lucas180 Leaky Injector Join Date: May 2009 Location: Canada Posts: 79 Trader Rating: (0) Feedback Score: 0 reviews	Safe boosting PSI T28? Hey guys..just a question i have about boosting..ive had my SR for a over a year just running stock 7 PSI of boost red top SR with a T28 from a black top sr and the intercooler is just stock sidemount. car also had 580cc injector ..and a nismo FPR that as far as i know ..is really doing nothing at stock PSI.. so tonight i took off the vacumme line as did a few pulls at 20 psi.. just i guess letting the turbo go on its own.. im wondering im pretty sure its not smart to do that but now im looking at manual boost contrllers to run the car at what i think is safe psi of 14? what am i going to be wearing out faster with a higher PSI whats working harder to get this ..ect also should i adjust the BOV spring if i go higher PSI i have a greddy type R . sorry id this post is a bit disorganised but i think you get the idea..

08-17-2009, 08:06 PM	#2
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Wait...20 psi on a stock side cooler?!?! Sell the car and go buy an NA car before you blow the engine up. 14 psi, the turbo is pretty much at its maxed efficiency. Anything more than that, you're just pushing hot air into the engine. Having a side mount makes its worst. Having no tuning turns your engine into an airpump. Airpumps like to give you rod knocks or worst, give you a new oil drain on the side of the block when the rods blow up. So again, 20 psi with no tuning on a stock engine with no tune...sell the car and get an NA before you blow it... __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

08-17-2009, 11:31 PM	#6
240sxxs Zilvia Member Join Date: Aug 2008 Location: o were Posts: 277 Trader Rating: (0) Feedback Score: 0 reviews	SR20 Motor can handle The boost Safely and reliable only at 13-15 Psi...whatever after that point..say good bye to ur piston..cause it will melt like caramel __________________ The pretty one Arn't free and the free one Arn't pretty

08-18-2009, 02:02 PM	#14
0wn3r Zilvia Addict Join Date: Oct 2007 Location: CT Posts: 676 Trader Rating: (4) Feedback Score: 4 reviews	right when you put those injectors in you should have gotten it tuned for higher boost...along w/ getting rid of that stock sidemount as already mentioned. you're right, the fpr isn't needed for your setup. you can't just put injectors in and turn up the boost and think the computer will know what it's doing. When it sends the signal to fire the 370cc injectors, it doesn't realize it's firing the "580cc's" you have in there. so if it throws more gas you think that adding 10 to 20 psi will balance the rich mixture throughout your entire rpm range / throttle input? i can't imagine how you did the swap successfully and don't know this stuff... __________________ 97 240sx se

08-18-2009, 02:22 PM	#17
240sxxs Zilvia Member Join Date: Aug 2008 Location: o were Posts: 277 Trader Rating: (0) Feedback Score: 0 reviews	I build my Sr From my friend most reliable reputator shop In ARIZONA called Fuled performance where they mostly speciallize in SR AND CA OR RB only...im sure mine can handle prob max too 20psi.. but not sure.. will insert 660cc sard injector and will be tune next week and let see what it put down .. __________________ The pretty one Arn't free and the free one Arn't pretty

08-18-2009, 08:40 AM	#9
Lucas180 Leaky Injector Join Date: May 2009 Location: Canada Posts: 79 Trader Rating: (0) Feedback Score: 0 reviews	alright thats what i thought its not good for the engine...it was only for about 10 minutes just drive around the block a few times casue i know its not safe.. but maybe 10 is safe. on stock with no tune.. is what your saying.?

08-18-2009, 10:38 AM	#10
lflkajfj12123 Join Date: Apr 2007 Location: 　　　　　　　　 Posts: 8,480 Trader Rating: (20) Feedback Score: 20 reviews	lol you drove around the block like that at 20 psi probably doing pulls bwahaha you're a genius do not touch the boost

08-18-2009, 12:30 PM	#11
Lucas180 Leaky Injector Join Date: May 2009 Location: Canada Posts: 79 Trader Rating: (0) Feedback Score: 0 reviews	im making myself sound so stupid on here..lol you all probly think i just bought my car with a sr and know nothing..not true i put the sr in and learned quite a bit about stuff but have never played with boost the only reason i did last night is casue a friend came over and showed me how to but i really dont think its a safe way. so yeah its back to stock 7 PSI now..but i felt that 20PSI and i want that power..or at least some of it ..but i want it safely to not break the engine or blow the turbo.. i was gonna get a manual boost controler and a fmic..would it be safe to use 14 PSI like that ?

08-18-2009, 01:20 PM	#13
stimracer Join Date: Aug 2009 Location: California Age: 36 Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	Wow, this is good information for me to know whenever I get my SR built and swapped in. I just planned on tuning to around 10psi just to be safe. I want an SR that'll last. Good luck tho lucas!

08-18-2009, 02:13 PM	#15
SILVIA_KIDs14.5 Zilvia Junkie Join Date: Nov 2006 Location: CT Age: 34 Posts: 368 Trader Rating: (-1) Feedback Score: -1 reviews	i'd agree wit most ppl here but again the sr can handle boost don't sleep you guys its not the tune that he'd have to worrie about if you noticed he does have rather large injectors in there for one and two what kinda t28 you runnin it depends if its a stock one or not if its a s14 or s15 or if its a big t28 who knows but yes you can do so depending on what turbo it is you will heat soak rather quick but shouldn't blow anything up just have to make sure you get your self a front mount asap cuz your robbing your self of power other wise and can potentially do some damage to the engine

08-18-2009, 03:13 PM	#18
rc1honda Zilvia Junkie Join Date: Aug 2008 Location: Chicago Age: 39 Posts: 432 Trader Rating: (5) Feedback Score: 5 reviews	This thread is a failure. Steve Shadows sold a car here on zilvia that made over 500hp with the stock bottom end. The SR can handle a lot of power. There are a lot of things that go into building a reliable motor. Buy a turbo that will be efficient for your power goals. Have the fuel system in place to feed all that boost. Have the proper engine managment. SAFC's are cheap, but standalone's make you car run like it just came from the factory. Supporting mods are essential as well. Quality parts. Wastegates, BOV"S, front mounts, throttle bodies, intakes, MAF's, injectors, cams and oil coolers the list goes on and on. All the ancillary stuff is what makes reliable power. Be thorough, do research. Never unplug the vac source from the wastegate. If your not sure, search or don't do it. 240sxxs your car should handle 20 psi no problem if you have the right tune and supporting mods. Head studs and a good head gasket most likely will need some cams to.

08-18-2009, 04:31 PM	#19
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	My only question is he said he got 580cc injectors. Who makes 580cc injectors?!?! Also, if he does have larger injectors and they fuel map is corrected for it, how is it tuned? Rom tune or by other means? If its not a rom tune, how is it "tuned"? Tuned for 7 psi since thats all it could run? __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

08-19-2009, 11:15 AM	#21
conrad_s13.5 Zilvia FREAK! Join Date: Jan 2009 Location: STL Age: 34 Posts: 1,533 Trader Rating: (6) Feedback Score: 6 reviews	shit,......ive been on 14psi for about a year and a half now w/ fmic. buuuuuuuuuuuuuut,.. i wouldnt think of turning it up anymore than that. __________________ cONtRol FReAkS

08-19-2009, 03:42 PM	#23
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	http://zilvia.net/f/tech-talk/194503...injectors.html __________________ 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

08-19-2009, 03:43 PM	#24
Lucas180 Leaky Injector Join Date: May 2009 Location: Canada Posts: 79 Trader Rating: (0) Feedback Score: 0 reviews	Okay let me explain in a little more detail i bought a clip from a slivia with a redtop SR 40,000 k on it i spent a bit more because it came with S14 blacktop T28 stock turbo unknown brand 580cc injector Nismo FPR M's intake and the ECU has a switch on it witch i was told was for a 'fuel saver mode' other then that i can only assume it was stock internals the engine has this sticker Does ANYONE know what this is ?? K's ROM ? also the injectors have a spacer on them : again no clue why it has that spacer.. ive driven and drifted this setup for the last year with no problems what so ever except having to change turbo gaskets and manifold. full compression still great engine at 7 PSI never higher. engine now has about 60,000 k on it i had the car on dyno with the switch both ways and no power differences either way. anyways, i forget what im even asking to do anymore ide like to run more boost but i dont want to break anything pre maturly i guess my first step would be to get a FMIC before i even touch anything. then maybe go to 10 PSI damn 20 felt good though lmao.

08-21-2009, 11:32 AM	#25
Lucas180 Leaky Injector Join Date: May 2009 Location: Canada Posts: 79 Trader Rating: (0) Feedback Score: 0 reviews	anyone know ?

08-21-2009, 12:31 PM	#26
flip3d Zilvia FREAK! Join Date: Feb 2008 Location: Ft Lauderdale, FL Age: 33 Posts: 1,473 Trader Rating: (1) Feedback Score: 1 reviews	11psi. do it. S13 is 11.5 stock. I can't imagine the S14 SR being any different. T28 would explain the higher power output. I'm so tired of seeing 7psi stock. The wastegate is set at 7psi. No one ever gets that nice little FACTORY boost solenoid. This thread even says the safest is .8 bar which is 11.5 psi. http://zilvia.net/f/tech-talk/194503...injectors.html __________________

08-22-2009, 07:20 PM	#30
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Honestly, you'll never know what that ECU is tuned for. First off, do you have a larger fuel pump or stock? Need to upgrade that first if you want anything more boost wise. Then get an FMIC. You want to crank the boost up, get on a dyno or get a wide band o2 sensor and slowly tweak your boost up and see where it starts leaning up. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

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