where to go next???

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fc3sdrifter121
Posts: 202
Joined: Wed May 24, 2006 3:17 am

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so I have my sr, it has a greddy m spec fmic kit,ssac manifold,xs power dp, test pipe, cat back. greddy oil pan, alum. radiator,apexi intake, and some other small things I am forgetting,I am running 14psi, and from everything I have read , I am pretty much at my max for the t25, injectors, maf, fuel pump, yada yada.I am assuming I should be doing around 250 whp, my goal is to get a reliable 300whp. I am new to sr's, and to be honest I am not that good with forced induction period.where should I go next to reach my goal, I know I need the fuel and some management, with a different turbo.but thats about as much as I know.....

thanks for the guidance


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Jesse SR20
Posts: 280
Joined: Fri Jun 25, 2004 8:37 pm
Car: 1990 S13 fastback
Location: Your mom's house.

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Upgraded turbo.Larger injectors.Walbro fuel pump.Z32 mafs.Fuel management. Tune.

If it were me, I'd get a GT2871RS. Couple that with the Greddy intake tube kit and the whole turbo is 100% bolt on. If your goal is 300, then 550 injectors are fine. As far as fuel management, I'd go with a rom tune. I'm guessing 18-20 psi is enough to hit 300hp.

fc3sdrifter121
Posts: 202
Joined: Wed May 24, 2006 3:17 am

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what turbo would be suitable? and what size injectors?reliability is huge for me

CoupedUp
Posts: 495
Joined: Mon Feb 26, 2007 3:25 pm
Car: 1993 Coupe
Contact:

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I'd go cheap IMO.

Id get:

S14a or S15 injectors(300 dollars)S15 Turbo(800ish)SAFC Neo(350?)

Total = $1450 Rough Estimate.

Done, 14 PSI = 300WHP.

kickertu
Posts: 226
Joined: Tue Aug 27, 2002 5:16 am

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damn there is alot of mis information on this site.

for 300whp, you will need-

s15 turbo, or larger, such as gt2871, gt3071550cc injectorsenthalpy tune. (can be done with s-afc, but no timing controll makes it moer prone to breaking ring lands with any amount of detonation.

bout 17-18psi and you will be there, or real close.

my old setup consisted of an s14 turbo, 550cc injectors, z32 maf, fuel pump, fmic, exhuast, and 17psi, i made 276whp.the s15 is a bigger turbo, but not big enough to make that much more power at lower boost.

if you want reliable and ease. gt2871550ccenthalpy ecumaffuel pump

drive the **** out of it!

spikNspan
Posts: 16
Joined: Tue Jul 24, 2007 11:39 pm
Car: 1990 240sx hatch

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I'd paint my trunk first, but that's just me.

fc3sdrifter121
Posts: 202
Joined: Wed May 24, 2006 3:17 am

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it already been painted smart ***

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Twinchy
Posts: 1553
Joined: Wed Feb 18, 2004 10:09 am
Car: Peg leggin 240sx

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Jesse SR20 wrote:Upgraded turbo.Larger injectors.Walbro fuel pump.Z32 mafs.Fuel management. Tune.

If it were me, I'd get a GT2871RS. Couple that with the Greddy intake tube kit and the whole turbo is 100% bolt on. If your goal is 300, then 550 injectors are fine. As far as fuel management, I'd go with a rom tune. I'm guessing 18-20 psi is enough to hit 300hp.
Would he have to do any head work to maintain that power or would it be just fine?

doridori23
Posts: 271
Joined: Wed Jun 13, 2007 11:43 am
Car: 1996 SR20deT 240sx (mine) , 1998 KA24de (wife's)

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Twinchy wrote:
Would he have to do any head work to maintain that power or would it be just fine?
As long as you obey the 8000 rpm redline no but GReddy EZ Cams (256/256 and works on stock springs) will give you an east 20+hp bump on the cheap.


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