1971 Mach 1 tune help.

330
United States
California
I came up with a tune that gets me comfortably in the 10.40s. I have spent a while on it and have hit a brick wall. Could any of you good tuners look at my numbers and give me some direction. And, everyone else, feel free to use this as a base tune.

Reset Tranny
Final Gear: 5.500
Top Speed: 99
Final Gear: 3.350
Top speed in the upper right corner should read 153mph
1st: 2.471
2nd: 1.846
3rd: 1.465
4th: 1.189
5th: 0.997
Top speed in the upper right corner should now read 157.
LSD: 25/55/5
Height: -20, 40
Spring Rate: 2.8, 15.0
Dampers (ext): 1, 10
Dampers (comp): 10, 1
Anti-Roll: 4, 4
Camber: 0, 0
Toe: -1.00, 1.00
Rear Aero: 20
No ballast

My main goal is to be able to get this car in the low 10.20s.

Thanks in advance!
 
You need to shorten your gears and lengthen your final. Soften your rear spring rate and you should be good
 
Slashfan
You need to shorten your gears and lengthen your final. Soften your rear spring rate and you should be good

Thanks for the tip. That got me to 10.334. I think I can get it there from here. Thanks again.
 
Last edited:
Slashfan
You need to shorten your gears and lengthen your final. Soften your rear spring rate and you should be good

Yes, slash is right. Put your final 1000 away from full left, then Max speed all the way to the left, then put final all the way to the left. Then set your individual ratios 👍
 
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