Thread: Breaking 400whp on a t28??

I have seen T-28 cars make over 300 whp but, that was tuned out really well.

My boy made 301 whp at 15 psi.

It will take a decent shot of spray to clear 400 whp. Keep in mind the TQ would be out of control.

I don't need to break 400whp I just thought I would attempt and if it falls short oh well but I guess we will see what it makes when everything is done.
I want to use a t28 or gt28rs because I don't want to change my downpipe and intercooler setup and I don't feel like paying alot of money but im going to see how prices work out for other turbo's and mani's.

did you have s4 cams? or any other mods?

what type of tuning management are you going with? tuning will play a GREAT deal in the power you make and how extensive you are able to get with it.

i would shoot for really efficent power verses peak power, esp since you are looking to go with a gt28rs or a t28 with those 2 turbos they are really made for efficency verse peak power hence why the 28rs is so responsive, i mean even if you make 350whp MAX with a 28rs you sre talking about 350whp of responsive fast spooling power, you cant beat that

If a GT28 is in the picture, then you could do it, no problem. Also at least one company I know of will make a (Borg Warner?) turbo fit as a direct bolt-in.

I won't be tunning it a friend of mine will tune the car again for the new setup (he tuned my t25 setup). I have an e-manage in the car and it works very well and I haven't hit a draw back to it yet. I have my own wideband so I can check that with the dyno and data log from the e-manage as well as the wideband.

As for the turbo goes If anyone can find me a something that will fit right up thats around $400 and still not break my bank account considering I have to put a new motor in and still need other parts I cant drop $1,400 on a gt28rs

well if you need some s4 cams i know exactly where you can get them, hahaha

its a shame you cant go with a t3 setup you could easily reach your goal if you got out of the t2 flange and go with a t3, easily hit 400 but the whole manifold and possibly rerouting its not your easiest bet, but it would make your goal

yeah s4 cams straight up on a jwt tune. like i said it was superr below 10:1 rich. with a good tune there is no reason the car cant hit 300whp with out going over 18psi.

stratton.

People think that with my times my car should be about 350whp on a standard T28 @ 20psi but that is simply a guess.