Thermoquad race tune

perfacar said

hi, I run 6319 T.Q. on a 340 stock eliminator motor. only thing done was , little drilling of fuel passages, bigger needles, milled out, the air door is set with a gauge, for a/f. I hooked up AEM sensor, to collector, it read, 12.1 to 12.3 going down the track, I mounted it where i could see it easily. I adjust air door for leaning or richening. it is in .025 steps, works very well. I ran 11.37 @ 116 MPH. hhhmmmm.

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I see it change the a/f when I open or close the air door, the problem I have is it doesn't change the e/t or mph as it should. For example, if I close the door up .075, it changes the a/f 1.75 points, but the car will mph and e/t the same. If I leave the air door at the set measurement (Yes I built a gauge also) and change the jetting to change a/f, it will pick up or drop off as you would expect. I can only assume it has something to do with the mixture or atomization. It could have something to do with the work done on the manifold, don't know, but it ain't right.

11.37 @ 116mph.... damn. Think you could do that on g70-14 poly's?

Dave, water under the bridge, I emailed and pm'd you at least 10 times with no response. I don't need to rehash this.