I just bought a '01 Cobra and plan on putting a stage 4 twin turbo kit on it. I've never dealt with anything that would produce that much power, so I was wondering what all I'd need to swap out in order to keep up with about 750-800 rwhp.
No offense, but you may want to save a few thousand and just throw a S/C on it. My buddy has an 01 and put a procharger on it. With just replacing the fuel pump (pretty sure that's it) he his putting down 460 RWHP with only 10 lbs boost. It runs pretty hard, but for the amount of internals that you need to replace to handle the TT, it may be a better way to go, just a thought...
there is NO supercharger than can match the power potential of a twin turbo kit on a 4v. Yeah there are full race blowers but on the street they dont make much power down low. YOu WILL need forged rods and pistons. If you keep the ITS look into Level 5 halfshafts from the driveshaft shop and other supporting irs parts to make it stronger. I would swap it out for a built solid axle but thats me. You will need a stronger clutch but i would go with a built trans with a 26spline input shaft. You wanna make 800hp and keep it reliable..be ready to spend 20k bucks by time its all said and done.