i just had my car re tune last Sunday with Crome by RD-Tech. my setup is
obd1 GSR in 92 civic hb. im running t3/t4 turbo and 450 dsm injectors. Sometime when it hit 6,000 RPM the car bogs. the RPM gauge bounce back as if it was about to deadnate. It onyl happen sometime. any one know a reason that cause this? could it be the distributor?

 

check your tune. start eliminating gremlins by looking at the chrome tune. IF you tuned it yourself, take a look in the mirror and yell at the guy you see staring back at you first.. j/k...

Check tune, plugs, wires, map sensor, etc..

 

change your oil.

 

thanks for the reply! i will change my oil and check the stuff