FinFox

Hello!

I have '88 GT with totally built engine, drivetrain, suspension etc.

The car has a fresh 306 with BBK SSI -intake, 75mm TB, 70mm mafs, MSD ignition. The compression ratio is 10:1. The car has 310 rwhp.

It has a totally new rear end with 3.55 gears.

Here's a few pic of it:







Now I have been thinking to supercharge this Fox.

I know the compression ratio may be little too high but I only have thought a low pressure.

Let me know your opinion what would be the best supercharger system for my car. My budget is something like $3000, not more.

How much hp gain should I expect when supercharging this car?

All opinions are wellcome, and sorry for my bad english.

-Sami

Soldier GT

Wow that's a very nice Fox!

FinFox

Thanks!

Ok, guys, let hear the opinions about the supercharger question!

FinFox

I have thought about Vortech or Paxton, but which one and what model?

mustangGT86_05

Eh I know you're looking to run low boost but on a 10/1 ratio that's chancing it. The rule of thumb is on most engines you can safely run about 7 psi, but on a 10/1 ratio I don't know what you could push

FinFox

That's the reason why I'm asking.

I hope someone know.

Thanks anyway.

TrimDrip

My last motor was 9:5:1 with iron heads and was fine. It was a tq monster with a kb. I went with the vortech myself because I didn't like all the tq on the street. It was hard not to boost the motor.

The vortech is nice but, the more they spin, the more boost they make. If you buy a basic kit, you won't start building boost until 4k. If you pulley it down like I did, you will make boost in the low 3s but, will be hitting 7 quick later in the rpm range.

If you wanted 7lbs early and constant, you could do the turbo thing and run a wastegate to where you won't make over 7 pounds and have the boost early. Only thing is though, if your car is a stick, it may not be as street friendly as you want. Then there is always the kb too.

FinFox

The boost starting at 4k is ok. Anyway I'll use the max power mostly on strip, not on the street.

My car has the rev limiter 6200rpm.

What package do you recommend? Any link would be useful...

Thanks.

-Sami

FinFox

I thought I could have exact answers from here but I quess no...