Thermoquad race tune

demon sizzler said

Speak for yourself on that one. It does not take a genius to rebuild one or to understand one. Too many people have figured out how to rebuild it, modify it and get not only plenty of power out of it but also get exceptional gas mileage from it.

Hey Rob, I have two Dodge mud truck racer's I built totally race-prepped T.Q. 'S for their 498 and 526 stroker wedges for and both are in the winners circle just about every race. They have bumped-up in class two classes higher and still beat the competition! They are about the only two running a T.Q. and before I built those carbs, they did not have that kind of luck.

It is pretty neat that the Chevy and Ford guys with much deeper pockets just can not believe those two Dodge guys are running a T.Q. and beating 550-600+ inch motors. I love it!

Click to expand...

Thats funny coming from the guy I spent 400 dollars on a thermoquad that was supposed to be the best of the best and it wouldn't get past 2k rpm because he never replaced the spring in the accelerator pump and it was broken.... Then my home built thermo picked up 1 tenth over his...

In 3 yrs of racing with the thermoquad I have gone from 12.14 @ 111mph to 11.27 @ 120+ with very little changes other than carb tuning and weather. I have learned you CANNOT watch the a/f meter and know whether it was a good run or not. I can make the car run the exact same times with the a/f in the 10's or in the 13's. Everyone told me to fine tune with the secondary air door opening. You can't. Sure, it changes the a/f dramatically, but it doesn't pick-up or drop e/t accordingly. The car runs the fastest e.t. with the air door at the measurment set. period. I change the jets to change a/f. Lots more work, but it is the only fairly consistant way I have found to make a/f changes that acutally result in e/t changes.
I don't trust a carb I can get the same e/t out of with a 3 point spread on a/f.