need help making power 94tt

[warmkop]

• Al of the cylinders is between 150 and 155psi
• why do you take the front sway bar off what is the reason
• Does a twinscroll turbo make any diffrense on spool up time

[pwpanas]

Originally Posted by warmkop

• Al of the cylinders is between 150 and 155psi.

Agreed those numbers are okay, but (fyi) a brand-new 2jz-gte reads about 170psi. I'd suggest you should also do a leakdown test.

Originally Posted by warmkop

...

• why do you take the front sway bar off what is the reason

...

For the best drag race launch, you want the back tires firmly planted, regardless of body twist or suspension travel. When the front sway bar is doing its job forcing the body flat, the rear tires aren't optimally planted.

Originally Posted by warmkop

...

• Does a twinscroll turbo make any diffrense on spool up time

Not at all, unless you have one of these:
http://www.spracingonline.com/store/...ool_Valve/3643

[warmkop]

Dit the test everything is fine.that part is expensive for something that i can make my self.

[pwpanas]

Originally Posted by warmkop

...that part is expensive for something that i can make my self.

Good luck. The tolerances required to make that valve effective are VERY tight.

[warmkop]

i bould parts for powerstations so tolerances is not a problem.How effective is cutting the standerd cams or is it better to buy cams.

[pwpanas]

Originally Posted by warmkop

i bould parts for powerstations so tolerances is not a problem.How effective is cutting the standerd cams or is it better to buy cams.

In my experience, most buy aftermarket cams like these:
http://www.hksusa.com/products/?id=656&rsku=4064

To get a longer duration, don't you need *more* 'meat' on the camshaft? I believe you'd have to do more than just cutting...

[warmkop]

Thanks for the advice so far its been very helpful.
What cam wil you say is the best to use and wat can i rev the motor safely.

[pwpanas]

Originally Posted by warmkop

Thanks for the advice so far its been very helpful.
What cam wil you say is the best to use and wat can i rev the motor safely.

You're welcome.
For your application, these HKS 272 duration cams will do nicely:
2202-RT085 and 2202-RT086
(note these only work on the '93-'98 non-VVTi models)

With the oem valve springs, max 8500rpm is safe.
With dual springs and titanium retainers, 9500+rpm is easily doable.
Add shimless buckets to the setup and it should be good for 11K (no kidding - again, that's with a bone-stock oem shortblock!).

However, note that you don't really make your power with rpms alone in the 2jz-gte. The turbo is so integral to the overall performance...the turbo-driven horsepower curve will usually taper off after about 8000-9000rpms. You'll want to set things up so that your shifts maximally captialize on that horsepower curve. Use the nos as an aide to spool up the turbo quicker and you'll widen that horsepower curve even more.

[warmkop]

how good is the standard intercooler and at power should it be changed.
should i install a bigger oil cooler

[pwpanas]

Originally Posted by warmkop

how good is the standard intercooler and at power should it be changed.
should i install a bigger oil cooler

The oem intercooler is fine for many applications (eg. roadracing). It's side-mount design means that it doesn't pre-heat air going to the radiator. For 500rwhp and roadracing, it may be near optimal. For 800+rwhp and drag racing, it's probably not. Anything in the middle is probably arguable...especially if you find a way to take care of its one weakness - the plastic end tanks. At high boost and high heat, the end tanks can pop out from the metal fingers that hold them on. To solve this, you can wrap a metal cinch strap around the intercooler and end tanks to help keep things together. If you can find it, at one time GReddy made an all-metal side-mount intercooler oem replacement.

You should only install a bigger oil cooler if you're going to be roadracing at 700rwhp+, imho.