too much????

[NySmAdMaN]

I have a 87 national with stock turbo and intercooler,headers,cat back exaust,upgraded fuel system. and I was wondering if a 70mm tb & plenum is over kill for the motor i figure more air is better.let me know thanks all

 

[Lturbo6]

Yes it is! How fast u trying to go. You won't need that for awhile.

 

[NySmAdMaN]

would a 65mm still be to much??

 

[forcefed3.8's]

A stocker will go 9's. Leave it alone.

 

[Lturbo6]

I agree

 

[NySmAdMaN]

ok im just feeling around to see what i can and cant do.thanks guys

 

[NySmAdMaN]

Any other sugg on quick and cheap speed?

 

[GNguy]

you can lock the converter, put a duttneck on the stock intercooler, run race gas and turn up the boost.....theres more im just too tired to remember...

 

[turbo nasty]

Get the car running/tuned perfect and then get alky injection, adjust wg and a TT alky chip and you will be happy.

What is your cars setup currently ???

I see no sig??????

 

[bison]

I have a 87 national with stock turbo and intercooler,headers,cat back exaust,upgraded fuel system. and I was wondering if a 70mm tb & plenum is over kill for the motor i figure more air is better.let me know thanks all

The 70mm is useless until your over 6000rpm on a 231ci. Go for injectors, turbo, and alky injection.