[silver01coba]

Anyone know the max psi for a stock 2001 cobra?

[badass98svt]

max. psi? well that depends on how you are gonna drive it. you want it streetable? if so i personally wouldn't go more than 9psi. but if you are going a 1/4 mile at a time, thats different...you could probably go upwards of 12 or more if its intercooled ( it should be anyway). this is just my opinion. how many miles on your cobra?

[NoSlow5oh]

Maximum psi isn't really the question. The question is how much will your block and internal components withstand before blowing apart. I have done some research on this as I am about to install a charger on mine and from what I have learned, 450 rear wheel horsepower is a safe limit on these cars. I have read about people running over 500rwhp, but most of them blew their motors and a rebuild is not cheap. I estimate I should be right at 450rwhp with the 10psi pulley on my cobra. That is with a safe tune also, so there could be room to grow but I'm not risking it.

[silver01coba]

I'm putting a procharger 10 psi and later I plan on adding dishpan pistons and forged rods to lower the compression. I belive the block will stand stong at 14 psi. There is a 98 cobra that did the same and the car would do 200 mph with the stock block.