S15 t28 turbo - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mikey0129 · 12-05-2007, 10:42 AM

dam im loving it

mikey0129 · 12-05-2007, 10:43 AM

dam i just slaped that biatch on and it feels like a rocket compared to a t25

thanks for all your help

wzntha · 12-08-2007, 11:03 PM

..........

GSXRJJordan · 12-08-2007, 11:53 PM

Whenever upgrading turbos, you should upgrade fuel system/MAF/management - that doesn't mean you have to. You can probably run a GT28RS at 10lbs or so. You'll be able to feel the power cut when you start detonating, but it'll be too late... you'll already be running lean.

motorsnail · 12-09-2007, 12:24 AM

Quote:

Originally Posted by GSXRJJordan

Whenever upgrading turbos, you should upgrade fuel system/MAF/management - that doesn't mean you have to. You can probably run a GT28RS at 10lbs or so. You'll be able to feel the power cut when you start detonating, but it'll be too late... you'll already be running lean.

Yeah people dont liscen, he will blow his shit just like the last dude that made a "s15 t28 turbo will it work" thread. I am wondering why he even made the thread if he was going to slap it on anyways? But eh people learn from their own mistakes and he just made one

Size · 12-09-2007, 12:40 AM

x2^

chad.... your maf must have been on roids,

you can tap in a bit the center of the stock fuel pressure regualtor that will give a bit more pressure and a bit more for the 370's but

TOO LEAN IS NO GOOD< BOOM BOOM KABOOM!

bigger turbo, then get better management and more fuel. a simple as that

issac · 12-09-2007, 08:39 AM

Yeah people dont liscen, he will blow his shit just like the last dude that made a "s15 t28 turbo will it work" thread. I am wondering why he even made the thread if he was going to slap it on anyways? But eh people learn from their own mistakes and he just made one

A wise man learns from the mistakes of others......... A fool learns from his own.

240SX2high2aim · 12-09-2007, 04:38 PM

Issac is right. Look, if you wanna push it sure it might work for a couple of days but your sacrificing the life of your engine. Your better running rich then lean. So I would get the 550cc injectors with the S15 turbo. And get some sort of a piggy-back fuel controller or if you have money then get an STAND ALONE ENGINE MANAGEMENT (so you can use the same thing to manage all your mods tell the very end), and a new MAF. It is a good investment because if you want more power you can slap on the GT2871r damn that shit is nice.

Flybert · 12-09-2007, 06:16 PM

S15 turbo up to 10psi is perfectly fine on stock s13 SR. I would personally stick to stock boost and put race gas in at the track because I'm paranoid but I have had a friend running this setup for a long ass time. For most of that time he was even using a stock sidemount intercooler and 91 octane cali pissgas. He tracks it more than any of you guys and his motor is still running strong. He's had the same SR for at least 5 years now.

wzntha · 12-09-2007, 06:50 PM

..........

DC5RACER · 12-09-2007, 07:07 PM

Well um guessing they put 480s on the 15 for a reason...maybe its cause of the BB turbo...don't be a cheapass when it comes to forced induction or your car will run like crap

Def · 12-09-2007, 07:07 PM

Just measure MAF voltage on a long 3rd gear pull at different boost levels on a cold day and that will tell you what your safe boost level is - it's not that hard people. Don't guess, make sure your setup runs fine for you.

That said, 10 psi will almost surely be safe, but definitely getting close to maxxing the MAF out on cold days at low altitude.

SHIFT_*grind* · 12-10-2007, 08:01 AM

If you're going to run an upgraded turbo without a fuel and tuning upgrade, leave the boost stock. I don't have firsthand experience (not *yet*, I'm putting a GTiR T28 on my otherwise stock S13 SR), but you're begging for an explosion if you up the boost on an upgraded turbo and stock tune.

I was told that my GTiR T28 on stock S13 motor at 100% stock boost would be fine; I imagine that an S15 T28 would probably be fine as well?*

*this is just a guess, don't quote me

statik · 12-10-2007, 08:20 AM

I ran my GT28RS on stock injectors/maf at 10psi for a few months, just don't take it over 6800, mine came close to maxing the maf higher than that. It made 253hp @ 6300 and was still climbing steadily

240SX2high2aim · 12-11-2007, 12:07 AM

Quote:

Originally Posted by wzntha

i plan on running it at 7 psi, so would that reduce the chance of running lean? i use it as a daily driver and im not trying to make huge amounts of power. the stock turbo doesn't seem like its in good condition, which is why i want to change it out. also, what size injectors would you recommend? 550? and if i change the maf, i would need something like an safc for it, right?

Lean means there is to much air. Rich is too much gas. PSI mean pounds per square inch. If you have less amount of air then you get less lean so yes if you run on lower boost you will kindof even it out BUT what is the point to that your just wasting the green for an S15 turbo and not using it. You could make the same power from the other with more boost. You get it its not worth it.

240SX2high2aim · 12-11-2007, 12:17 AM

Hey sorry if this is out of the subject but i had my own questions and this is kind of in the same area. This is the mods I plan on doing when i do an SR20DET swap what do you think i should run PSI and how much you think i will make HP TQ.

STOCK injectors
STOCK TURBO
Z32 MAFS
ACT Street/Strip 372 ft/lbs clutch
Fadanza Aluminum Flywheel
B&M Short Shifter
Koyo Radiator
Oil Cooler (http://www.alamomotorsports.com/pmc/Cat_page07.html) (450hp)
Circuit Sports Coolant Tank

Greddy R-Spec FMIC (or should I get the SPEC M {wat is difference} Spec M is a lot more cheaper like 1/2 price)
Greddy Type RS BOV
Greddy Oil Pan
Greddy Profec B Spec II Boost Controller
Greddy Auto Turbo Timer

Greddy Ti-C Exhaust (or Tanabe Concept G Blue Exhaust)

And then later on upgrade to a GT2871r, 740cc Injectors, Power FC

GabeS14 · 12-11-2007, 12:37 AM

Quote:

Originally Posted by 240SX2high2aim

Hey sorry if this is out of the subject but i had my own questions and this is kind of in the same area. This is the mods I plan on doing when i do an SR20DET swap what do you think i should run PSI and how much you think i will make HP TQ.

STOCK injectors
STOCK TURBO
Z32 MAFS
ACT Street/Strip 372 ft/lbs clutch
Fadanza Aluminum Flywheel
B&M Short Shifter
Koyo Radiator
Oil Cooler (http://www.alamomotorsports.com/pmc/Cat_page07.html) (450hp)
Circuit Sports Coolant Tank

Greddy R-Spec FMIC (or should I get the SPEC M {wat is difference} Spec M is a lot more cheaper like 1/2 price)
Greddy Type RS BOV
Greddy Oil Pan
Greddy Profec B Spec II Boost Controller
Greddy Auto Turbo Timer

Greddy Ti-C Exhaust (or Tanabe Concept G Blue Exhaust)

And then later on upgrade to a GT2871r, 740cc Injectors, Power FC

you didnt say which Sr you would be getting!
and you shouldnt budge into someone elses thread like this.
search

BTW:
THREADS OVER HE ALREADY PUT THE TURBO ON!

SHIFT_*grind* · 12-11-2007, 08:16 AM

Quote:

Originally Posted by 240SX2high2aim

Lean means there is to much air. Rich is too much gas. PSI mean pounds per square inch. If you have less amount of air then you get less lean so yes if you run on lower boost you will kindof even it out BUT what is the point to that your just wasting the green for an S15 turbo and not using it. You could make the same power from the other with more boost. You get it its not worth it.

No.

And don't ask vague questions on a topic that's been beaten to death in someone else's thread. Make your own vague thread for that, so at least it'll be your thread that gets locked and not someone else's.

-rip it up s13- · 12-11-2007, 08:23 AM

im running a s15 t28 spec-r, and walburro 255l,stock fuel rail,stock injectors. at 9 p.s.i and its awesome dyno's at 237 whp and 221 t.q .. i have some other mods that helped with the turbo tho like greddy intake manifold,tubular turbo manifold,divorced turbo elbow,

but its been running great for about a year of hard abuse now

12-05-2007, 10:42 AM	#31
mikey0129 Zilvia Member Join Date: Oct 2005 Location: torrance Posts: 278 Trader Rating: (0) Feedback Score: 0 reviews	dam im loving it Last edited by mikey0129; 12-05-2007 at 10:44 AM.. Reason: double post for some reason?

12-08-2007, 11:03 PM	#33
wzntha Join Date: Oct 2007 Location: LA Posts: 11 Trader Rating: (2) Feedback Score: 2 reviews	.......... Last edited by wzntha; 09-20-2012 at 05:57 AM..

12-08-2007, 11:53 PM	#34
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	Whenever upgrading turbos, you should upgrade fuel system/MAF/management - that doesn't mean you have to. You can probably run a GT28RS at 10lbs or so. You'll be able to feel the power cut when you start detonating, but it'll be too late... you'll already be running lean. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

12-09-2007, 06:50 PM	#40
wzntha Join Date: Oct 2007 Location: LA Posts: 11 Trader Rating: (2) Feedback Score: 2 reviews	.......... Last edited by wzntha; 09-20-2012 at 05:57 AM..

12-09-2007, 07:07 PM	#41
DC5RACER Leaky Injector Join Date: Jul 2006 Location: San Diego Age: 37 Posts: 87 Trader Rating: (0) Feedback Score: 0 reviews	Well um guessing they put 480s on the 15 for a reason...maybe its cause of the BB turbo...don't be a cheapass when it comes to forced induction or your car will run like crap __________________ 89 240sx hatch 04 rsx type s

12-05-2007, 10:43 AM	#32
mikey0129 Zilvia Member Join Date: Oct 2005 Location: torrance Posts: 278 Trader Rating: (0) Feedback Score: 0 reviews	dam i just slaped that biatch on and it feels like a rocket compared to a t25 thanks for all your help

12-09-2007, 12:40 AM	#36
Size Join Date: Jul 2005 Location: Montreal Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	x2^ chad.... your maf must have been on roids, you can tap in a bit the center of the stock fuel pressure regualtor that will give a bit more pressure and a bit more for the 370's but TOO LEAN IS NO GOOD< BOOM BOOM KABOOM! bigger turbo, then get better management and more fuel. a simple as that

12-09-2007, 08:39 AM	#37
issac Leaky Injector Join Date: Jan 2007 Location: california Age: 45 Posts: 131 Trader Rating: (1) Feedback Score: 1 reviews	Yeah people dont liscen, he will blow his shit just like the last dude that made a "s15 t28 turbo will it work" thread. I am wondering why he even made the thread if he was going to slap it on anyways? But eh people learn from their own mistakes and he just made one A wise man learns from the mistakes of others......... A fool learns from his own.

12-09-2007, 04:38 PM	#38
240SX2high2aim Leaky Injector Join Date: Aug 2007 Location: SoCal Age: 64 Posts: 72 Trader Rating: (0) Feedback Score: 0 reviews	Issac is right. Look, if you wanna push it sure it might work for a couple of days but your sacrificing the life of your engine. Your better running rich then lean. So I would get the 550cc injectors with the S15 turbo. And get some sort of a piggy-back fuel controller or if you have money then get an STAND ALONE ENGINE MANAGEMENT (so you can use the same thing to manage all your mods tell the very end), and a new MAF. It is a good investment because if you want more power you can slap on the GT2871r damn that shit is nice.

12-09-2007, 06:16 PM	#39
Flybert Post Whore! Join Date: Mar 2003 Location: none Posts: 3,862 Trader Rating: (7) Feedback Score: 7 reviews	S15 turbo up to 10psi is perfectly fine on stock s13 SR. I would personally stick to stock boost and put race gas in at the track because I'm paranoid but I have had a friend running this setup for a long ass time. For most of that time he was even using a stock sidemount intercooler and 91 octane cali pissgas. He tracks it more than any of you guys and his motor is still running strong. He's had the same SR for at least 5 years now.

12-09-2007, 07:07 PM	#42
Def Post Whore! Join Date: Apr 2004 Location: Houston, TX Posts: 2,701 Trader Rating: (16) Feedback Score: 16 reviews	Just measure MAF voltage on a long 3rd gear pull at different boost levels on a cold day and that will tell you what your safe boost level is - it's not that hard people. Don't guess, make sure your setup runs fine for you. That said, 10 psi will almost surely be safe, but definitely getting close to maxxing the MAF out on cold days at low altitude.

12-10-2007, 08:01 AM	#43
SHIFT_grind Nissanaholic! Join Date: Nov 2004 Location: NWA Age: 42 Posts: 2,066 Trader Rating: (7) Feedback Score: 7 reviews	If you're going to run an upgraded turbo without a fuel and tuning upgrade, leave the boost stock. I don't have firsthand experience (not yet, I'm putting a GTiR T28 on my otherwise stock S13 SR), but you're begging for an explosion if you up the boost on an upgraded turbo and stock tune. I was told that my GTiR T28 on stock S13 motor at 100% stock boost would be fine; I imagine that an S15 T28 would probably be fine as well?* *this is just a guess, don't quote me __________________ My seller review thread

12-10-2007, 08:20 AM	#44
statik Zilvia FREAK! Join Date: Oct 2003 Location: Long Island, NY Age: 40 Posts: 1,358 Trader Rating: (0) Rides Gallery: statik Feedback Score: 0 reviews	I ran my GT28RS on stock injectors/maf at 10psi for a few months, just don't take it over 6800, mine came close to maxing the maf higher than that. It made 253hp @ 6300 and was still climbing steadily __________________ 97 240sx esaarr \| Current Status: SOLD

12-11-2007, 12:17 AM	#46
240SX2high2aim Leaky Injector Join Date: Aug 2007 Location: SoCal Age: 64 Posts: 72 Trader Rating: (0) Feedback Score: 0 reviews	Hey sorry if this is out of the subject but i had my own questions and this is kind of in the same area. This is the mods I plan on doing when i do an SR20DET swap what do you think i should run PSI and how much you think i will make HP TQ. STOCK injectors STOCK TURBO Z32 MAFS ACT Street/Strip 372 ft/lbs clutch Fadanza Aluminum Flywheel B&M Short Shifter Koyo Radiator Oil Cooler (http://www.alamomotorsports.com/pmc/Cat_page07.html) (450hp) Circuit Sports Coolant Tank Greddy R-Spec FMIC (or should I get the SPEC M {wat is difference} Spec M is a lot more cheaper like 1/2 price) Greddy Type RS BOV Greddy Oil Pan Greddy Profec B Spec II Boost Controller Greddy Auto Turbo Timer Greddy Ti-C Exhaust (or Tanabe Concept G Blue Exhaust) And then later on upgrade to a GT2871r, 740cc Injectors, Power FC

12-11-2007, 08:23 AM	#49
-rip it up s13- Leaky Injector Join Date: Nov 2007 Location: colorado Age: 35 Posts: 59 Trader Rating: (0) Feedback Score: 0 reviews	im running a s15 t28 spec-r, and walburro 255l,stock fuel rail,stock injectors. at 9 p.s.i and its awesome dyno's at 237 whp and 221 t.q .. i have some other mods that helped with the turbo tho like greddy intake manifold,tubular turbo manifold,divorced turbo elbow, but its been running great for about a year of hard abuse now __________________ im a noob.. but i love drifting!!