07blkgt

I have a stock 2007 GT Automatic and i want to get it from 300hp to at least 375. What type of supercharger should i get? How much will it run me to up it 100-150hp?

2007GT/CS

The "base" level Saleen S/C kit will take you to approx. 425 at the crank for around $5000. If you use Saleen's safe tune you can also preserve your powertrain warranty.

A shop like Brenspeed with do the install for $650.

The nice thing about the Saleen is it is easily tunable to higher levels by changing pulleys and adding fuel. You can also easily exceed the ability of your stock engine internals to cope. (Consensus is this is around the 450 rwhp level although some are running more successfully and some have blown their engines on less.)

Some of these things are also true for the other S/C makers (like Roush for preserving your warranty or Whipple or KB in terms of being tunable). Use the 'search'. There is a wealth of information about the different choice people made and why.

baha

If 400hp is really enough for you, the Powerdyne supercharger is the way to go. For under 3K it easily adds 100hp but to my knowledge it has no potential for more power or boost.

There is also the Brenspeed's Vortech complete package to produce 500 flywheel horsepower or 420-430rwhp for $4200.

If you worry about warranty, go Saleen, Whipple or Roush but they all sell for more than 5K.

hammeron

welcome to the forum


if you told me your long term RWHP goal and
what your looking to spend, i could suggest
the appropriate s/c for you

good luck with the project

2k6silvergt

All of the superchargers would help you get 375. I wouldn't recommend Powerdyne as there have been questions about their longitiviy. But like hammeron said it depends on your future goals and how much you want to spend.

drbobvs

I'd say the Saleen if you could get a good price, otherwise I suggest the non I/C Whipple or the non I/C Vortech from Brenspeed.

2k6silvergt

I have an automatic and went with the non-intercooled whipple. And was able to make 404 with that and the rest of my mods.

catalac

How many pounds boost are you running with Non ic setup? Who did tune for you, that sounds pretty stout.

2k6silvergt

It is the 6psi pulley but on my boost gauge it shows 7psi. I had it tuned by Automotive Specialist over by where I live. Before all the upgrades it made 256rwhp and before he started to really get serious with the tuning it made 378rwhp and after another day of toying around with it he was able to get it to the 400 mark.