Guys just wondering what horsepower your thinking im putting down, ive check the dyno sheets and cant seem to find an accurate picture of where im at. reason being is i dont want to go over what my maf can handle really. I trap at 111mph with the car.
Mods are
jdm sr20de from soko
gti-r turbo and manifold
370cc injectors
stock maf bored out
3 inch turboback exhaust(no cats)
s4 cams
JWT 4 bar computer for 370cc injectors, bored MAF, POP and s3/s4 idle program
11ish psi

Seems damn similiar to mine... except you have S4 cams instead of my S3 cams and I was on an Avenir block. I put down 250whp and 230wtq at 10-11psi. The CR won't affect the #'s that much.

Actually, I think Chriscar had a dyno up with S4 cams... might consider digging through his old posts and see what pops up.

Yeah, off the top of my head I'm going to say 240-260whp.

C

Oh, and get something to measure your maf voltage and injector % so you're safe. A BlaZt cable should be in your future.

C

256whp @ 12psi on a Dynojet.
http://www.sr20forum.com/turbo/155486-went-dyno-my-nx.html

C

wow, this i why i love this forum. and thanks chris for the dyno numbers and info! deff dont need to worry about anything then. i still have another 30-40 hp to go.

u can get a snap on scanner to measure ur inj% and maf voltage..thats what i do when tuning al.ong with a wideband.what clutch are u running?

SnapOn scanner = $x,000

BlaZt cable < $100 :)

C

yea I was thinking of the blazt but I got an e-manage so I can do the same stuff.

SnapOn scanner = $x,000

BlaZt cable < $100 :)

C

yes new..but thanx to an e-town swap meet i got mines for $150:D

u can get a snap on scanner to measure ur inj% and maf voltage..thats what i do when tuning al.ong with a wideband.what clutch are u running?


clutchnet copper clutch disk with heavy duty pressure plate,
anyone have any idea how much that would hold? it came with the car, i havent changed it yet because its not slipping at all

where can you get that blazt cable? does it come with the program?

http://blazt.biz/

C

I know MarkSR20 put down 246.9WHP on a DE block with a T28 and S4s.... on stock T28 boost of about 9psi.

I would say that you're pretty much at the limits of the injectors and MAF. With a t25 and S3s, same injector/ecu/maf setup, I was hitting 5.00V and 90% injector duty cycle with a peak boost of ~11psi at 5k rpms and boost dropping to ~8psi at 7k rpms. I trapped 13.27@110.87 by the way :) You're probably right around 260whp.

depending on if you time was on slicks or street tires.
if you running 111mph w slicks id say your 260-270ish

when i had 300whp i trapped 112-113mph on street tires
but with slicks the car went 114-115mph.

really? i did it on 50% tread yokohoma parada spec 2's. not the grippiest tire ever, and at a not grippie track
so that kind of scares me, deff better see what the injectors and maf are up to.