car is running really funny...help please
 

ok...i got the break in miles on the clutch...so i go to get on the car in 4th gear....the car has no balls now....it almost like vibrates the car. it only does this when the thermostat opens at 160 degrees...it feels like its cutting out on random cyl's...its hard to describe...help please...i know its not a good description of whats happening but i hope this has happend to one of you guys before!

Give us some background on the car. What motor, what mods, etc....

:agree: ,need gear ratio,speed you are shifting at,etc,also,who installed the clutch.Give us a play by play breakdown here!

i dont think it has anything to do with the gear ratio, clutch....but any way it has 3.73's installed by the best guy around here for rear ends(dennis and b&l used auto) the clutch was installed by myself, its a spec stage 2 with a spec flywheel. the motor is a 5.0 mass air motor. its got long tubes, a/c and smog delete, orhp, msd 6a box.

It sounds like an ignition problem.

Bypass that MSD box and see if it still does it.

ill try it

bybassed it...just as i thought....still does it...it has something to do with the thermostat opening up and the computer sending something messed up to either the dist. or the fuel injectors it seems...

so I take it you have a 160 T-stat?,if you do,you need a 180,or some of your sensors will act freaky,causing the ECU to go back and forth between open loop,and closed loop

maybe thats what it is, but was running fine with the 160 stat for 6 months no problem at all...

hmmm,try a 180*,and see what it does.they come from the factory with 198* units,I had a 160* in mine,and it ran rich