Hi

I have a 1987 rx7 turbo and i cant get it to go above 3 on the rpm gauge. It just stops @ it and makes a hissssing noise for some reason. I have no ida what it is and i have read my mazda manul and cant figure it out so if anyone knows what it might be could you let me know thanks.

 

sounds like you have a boost leak check all your hoses and make sure your hose clamps are tight.