Originally Posted by fast68plymouth
Quote
That would not explain good mph. If the car makes the power on the chassis dyno that matches the actual mph, then the e.t. can only be explained by traction or poor converter choice.



The speed is way off for what the chassis dyno numbers were.


Hopefully Andy will get the dyno sheets to look at.

The hood scoop thing doesn’t explain the poor 60’ times though, as it wouldn’t be having any real affect at that point on the track.

An 850hp 540 in a big tire 3000lb car should be solidly in the 1.20’s for 60’ times.



Could be multiple issues with the car. Once I can confirm dyno numbers I'll know more where to look. Could be gearing, shift points, converter, or chassis causing the poor ET and the scoop costing MPH. The car once ran 143 mph at Yakima which is higher elevation. So I'm thinking there is a variable that we don't quite understand.