S15 Turbo survey

[compression]

Anyone who is running an S14 or S15 T28 turbo: Let me know what boost levels you are running and how they are working for you (i.e. problems, Hp numbers, etc).I am just taking a little survey.thanks!

[RobDET]

soon.... I just got mine in last night

[kevinatCandR]

Hey Aaron I heard they only make like 175whphahahahahahaha

If I remember right it somthing like 320hp at the flywheel.

Its time for a GT25R on that thing. :ylsuper

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Damnit Kevin, you're making me look bad!

But seriously...For those who want to know what happened, I had my cams installed 2 teeth retard and the thing only made 125 Hp @10psi on the dyno when I was having it tuned, since the cams have been fixed, I have not gone back to the dyno yet, but I think its making a little more than 125 now he hehe he .....so it wasnt the turbo sucka! GT25R? whaddya think, I'm made of $? I spent all my dough on that fancy C&R Radiator!

Lets not get off topic, still trying to get some more info on the T28's

[TruboostPerformance]

T28 is a good upgrade to go with, it will bolt up, need to rotate the outlet and easier to put on custom oil lines for fitament,

[compression]

THanks for the post, but ya kinda missed the whole question. I am just curious what boost levels people are running with a T28. I already have a T28 installed and I am running it, I am using 12-13 psi boost and it is working great, just curious what level I can safely push it to when I need to.

[TruboostPerformance]

you can run a T28 up to 18psi, that would be the max, 16psi would be prob a good number

[compression]

bump, anyone else?

[jaboc03]

I've got the t28 on my redtop and when I got it dynoed it came out to be only about 190rwhp at 10psi. But it is also running very lean after 4000rpms.

Time for some 555cc injectors.

[LSB_11]

jaboc03, what all was done to the car? im kinda scared, it seemed allitle low to me?

[Nismo_Freak]

You should make 270 - 300rwhp on a S14 or S15 turbo. Average is 270 but with some supporting mods you can turn out 300. At 270 the stock MAF looses resolution and the 370's are at 100% duty cycle.

The reason S15's, car not turbo, turn out closer to 300rwhp is the larger injectors have better duty percentages which actually means they atomize fuel into a patterned spray.

I'd swap over to a Z32 Maf, 550's or 480's, good exhaust manifold, and turn out 300rwhp on 18psi tops.

[jaboc03]

I know I was expecting at least 230whp. I really don't know why it was so low. But my mods are:

t28 turboGreddy fmicintakeGreddy bov (plumbback)Greddy downpipeFull 3in N1 catback exhaustGreddy boost controllerApexi SafcIIWalbro fuel pump

I believe that is it.

Really I should be making more power, when it was dynoed it was around 92 degrees so that might have something to do with it.

[unfrgivn]

Something is seriously wrong with your car then. You can squeeze 210-220whp out of a stock t25 with those parts & boost (12-13).

[cesarmd7]

Check out this thread, it should give you an idea of what a properly tuned s15 turbo can do.Click here