I'm running a Procharger (centrifugal supercharger) on ten pounds of boost on my 4.6L V8. I should be making a little over 500 at the flywheel, but I am unsure about the exact number and what I'm making to the wheels as I only have a base map tune and have not put it on a dyno. I'm hoping that a few of you can help with a couple of questions I'd like some opinions on. I'm pretty much stock other than the blower, so there's a lot of work to be done.
Gears- 3.73s? I mostly would like to keep a good top end and not drastically murder it like I would with 4.10s (not that I'd ever launch with gears like that either), but I'm also looking for something that won't completely obliterate my acceleration.
Headers - Ceramic? Any personal preferences on brands? Looking for long tube headers specifically for higher end torque gains.
Suspension - Looking for a good all around kit, or good name brands, on shocks, struts, the whole nine yards. The only thing I'm sure about here is a sub-frame connector.
At the moment, to keep from too much information from being thrown around, these are all the questions I'll shoot out. My main concern is doing something about the suspension, as I'm pretty happy with the power gains I'm making at the moment. Thanks in advance!
Let me give you my input. My GT has the Paxton intercooled kit and was 100% stock when I started so this is what I learned down the road.
Gears- 3:73's are great all around gears wont kill you at cruising speeds w/ plenty of bottom end. With the centri you need a steeper gear to get into your power range quicker.
Headers-Ceramic coated long tubes Kooks are the best but $$$ any major brand, BBK,JBA, etc will do you good
Fuel Pump- I know you didnt ask but if you want to keep it together get the GT500 duel pump complete kit. Its worth every penny of the $800
Guages- Boost, wide band A/F are a must.
Suspension- Upper and lower control arms will help several kits are avalible, really dont see the need for frame connectors.
Dont rely on the canned tune get it on the dyno and use an experianced tuner. I couldnt take mine to the tuner but used Brenspeed. They tune was basically spot on to start. Ran it on the dyno, gave them the info from the pulls and got a great tune, no issues and very safe. Good luck