Reply to "Engeneering challange ... Progressive Throttle Linkage"

Yes, that should work nicely. It is what I was describing when I previously mentioned “use with another cam profile on the cable between pedal and where the cable attaches to the rest of the induction linkage”. It also has mechanical stops I mentioned so you don’t stress the rest of the linkage. You need to give some thought to redundant return springs.

Depending on the cam profile, you should be able to tune that to some degree to suit your engine by varying the initial position/angle of the arms on the jackshaft and the initial position of the cam. Not sure which end of the manifold you intend to mount that on but if in front, it may cause problems with a distributor (if you run one) or the bend angle on the accelerator cable to miss the fire wall. You could put it at the rear but as I said, I prefer the center of the manifold. In the center of the manifold, if one side of the shaft comes loose, you only risk 2 barrels at WOT, not a whole bank or all. However, not sure there is room in the center on the Kinsler manifold.

Kinsler parts are not cheap, but isn't meant to be. Good linkage is money well spent, especially on an IR system.

Best,
K