is there anyway i can trick the computer into allowing my car to go into 4th while full throttle? the most i could get was 135 with it nearing 5500 rpm, way too much strain at that rpm for a 20 year old engine. i know my car could do at least 145 if it was allowed to shift

 

I seem to recall a valve that goes in the transmission that allows this. Check out www.summitracing.com for it.

 

i got no luck on their website looking for it.

 

May not be exactly what your looking for but the computer does not control the trans shifting.
http://store.summitracing.com/egnsea...=KeywordSearch

 

i saw that, but that only allows 3/4 throttle. ill look around some more to see if there is anything else. thanks

 

I thought I remember reading in a magazine about that valve and getting off the throttle and rolling on it again to make it saty in fourth. But I could be wroong because I mostly just look at the pictures anyway.