i have a 1991 gtu. its an auto. but i only seem to be able to go about 90 then after that is speedo climbs slowly. whats wrong? help

 

Dude, it's pretty normal. 2nd Gen Rx7's have really crappy 5th gears. or high gears for that matter. I imagine your auto tranny is shifting to it's highest gear around 90 and that's why it doesn't want to climb much higher than that.

Peace,
AJ ^_^

 

Dump the auto transmission!!! Get a manual transmission then you'll beable to hit 140 mph.