safe PSI on vortech 01-04 GT - Ford Mustang Forums

vortechroush13328 · #1 (**permalink**) 04-27-2008, 05:57 PM

what would be the safest amount of PSI to put on my 01 roush GT the blower is going in next week V-2 i bought a 10psi pulley it should be around 435rwhp with a good tune but im iffy if it would b safe on my car its a weekend car im lookin forward to be spanking my buddys stock 400hp GTO and other buddys EVO 9 MR camed out and a camaro with a cam sooo im looking to come out on top pretty soon with my blower

soooo whats your guys input on this! im running Nitto 555r's right now soo hooking is not a problem

dee_saleen · #2 (**permalink**) 05-14-2008, 10:56 AM

Run the tires, you will need all the traction you can get. Have fun spanking your friends!

NewEdgeGT500 · #3 (**permalink**) 06-22-2008, 05:14 PM

With Nitto 555Rs and 400+rwhp you will blow your tires off. They are a glorified street tire.

Most people will state that the 12psi limit is the max on a stock block but many have gone up to 16psi and lived to tell about it. The most important part of the entire installation is the TUNE.

If you are going to race on those tires lower the pressure to about 11-12psi and give em a good 30 second breakstand to heat em up.