Dis appointed?
 

3 oild metering pumps, and 1 ecu later it runs right! finally! my 91 n/a rx7 that ive been stressing over for over a month now is doing fine. it has an impressive take off but lacks something to be desired when it hits 80... it crawls from 80 to 100 very slowly and then i ran outta road. this cant be common, is it? it launches good, and pulls good thru 65ish then just kinds inches up. where should i start?

is your oil pressure fine at this point ?... some times under longer periods of stress i find my pressure drops and then it turns into a real dog ...

what gear/rpm?

Probably a stuck VDI valve

iim in 4th gear, not quite sure the rpm off hand, maybe 5k?

do you have a functioning air pump???

yeah i have the same problem the car runs fine 0-80, get to 80 and it turns into a dog. in fourth and fifth.

yep.