I am getting a noise from my exhuast, when I try to accelerate quickly or if i reach around 10 psi it doesnt feal right it takes longer to accelerate also, my check engine light came up does anyone have an idea what this could be.

 

Check the code:

http://www.scuderiaciriani.com/rx7/engine_codes.html

 

Your description makes it very hard to pinpoint the problem.. I have an idea though, check your engine code.. I bet the answer is right there.

Matt
93 SSM

 

It's your Exhaust Cat Overheat or whatever that light is.

Seriously we need more info, from that description I could only guess a cracked manifold.

 

Yea what the ? need more info!