I bought this 91 RX7 non turbo. I only paid $1800 for the car and would like to soup it up! It is in really good shape. The only problem is that when the car seems to warm up or I have been driving it for a while when I accelerate and hit about 3500 rpms it starts to stutter or skip. It's as if it is misfiring or something. The engine has been reubuilt and it is a really beautiful car. I need to know how to fix this and then I will have a great ride. I also need to know what is something that I can do to enhance the performance of the car for more speed or just a little more horsepower. Someone help please!

 

Search for "3800 RPM hesitation."

 

Welcome to the forum. You can find out a lot by searching or reading over the FAQ. For your performance interest, and try a search for 'Beefy NA'...

 

Check your TPS, fuel pump, auxilary ports. You should search before posting anymore.