ok i have a dilemma. Im buying a car. And the only thing im leary about is that hes got 2.8 pulley with 42.5 injectors. He got it tuned by INTENSE, and i emailed intense and apparently they use HPTUNERS to tune the cars. Now ive been hearing numerous of threads that with this setup i would be using 100% capacity of the injectors (which i assume is no good), so that leaves me down to this...should i...1) replace pulley to a 2.9 and leave the 42.5 injectors, or 2) leave 2.8 pulley in and replace the 42.5 injectors with 60? ive done some pricing and the 2.9 pulley is only $50 and the 60lb injector with harness is $200

Now my question is, i know if i replace the injectors i need to retune, but how bout the pulley?? If i replace the pulley do i haveta still retune it or no??


btw the supercharger has been upgraded to a stage 3 and it consist these parts....

* Lucas 42.5 pound/hour Fuel Injectors
* INTENSE™ Powertrain Control Module
* Casper's Fuel Injector Wire Harness
* Autolite® Copper Core Spark Plugs
* INTENSE™ LSJ Modular Pulley System
* Oversized Supercharger Tensioner Pulley
* ZZP Pulley 2.8"

 

Bump!

 

Im not sure; I've only got a 2.2. But heres a bump for ya!

 

Yes you still should retune and you should go with the 60's. Even with the 2.9 you can still see over 80% duty cycle for your injectors. Thats not good. So my advive would be to do the 60's with the retune. You wont be dissapointed

 

If you plan on dropping pulley sizes in the future, than get the injectors now. If your happy with where the car is, then just change the pulley.