need help making power 94tt - Toyota Supra Forums

02-23-2013, 12:22 AM

#34

pwpanas

Supra Owner

Join Date: Oct 2005

Location: GA, USA

Posts: 2,209

Quote:

Originally Posted by warmkop

The spring is 1.5 bar going to put a 2 bar spring and set the boost down.
just tested the car with the 225 battling to get rims for the MT slicks.
must get the 1/4 mile times down.
Need a decent boost controller at the moment it is a manual boost controller.

I agree changing the wastegate spring will likely help with the fluctuation issue. Also ensure your blow-off valve(s) have sufficient volume to bleed off any compressor surge if/when necessary.

Regarding the tires...again, 225 seems far too narrow. You need to be running at least 12" (305mm) wide tires on at least 11" (280mm) wide rims, with very low tire pressure, and purpose-built drag race rubber (either drag radials or slicks) in order to get good 1/4 mile results from your new horsepower levels.

__________________
Phil '94 Supra Turbo, 6spd, 'APU'+
Displacement is no replacement for boost.
Life begins at 30psi.

NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.

Last edited by pwpanas; 02-23-2013 at 12:25 AM.

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