Bad 60 foot and poor ET with a 80 compared to Th400
09-09-2017, 10:28 AM
#43
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09-09-2017, 09:14 PM
#44
Seems much tighter and it's supposed to be the same just an application for the different Trans .
I have not had it restalled , that maybe in the future. I'm losing interest in the car quickly (too many other projects)
I'M KIDDING!!!
09-11-2017, 06:02 AM
#48
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But if you do want maximum ET and drive around town, a 2 or 3 speed is probably the way to go.
I guess you could have lower numerically gears and boost and be ok too.
Last edited by wht/73; 09-11-2017 at 06:44 AM.
09-13-2017, 08:38 AM
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09-13-2017, 09:52 AM
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07-21-2018, 10:04 AM
#58
Bumping this back up.
TH400 in to the car was a massive gain on motor. 1.68 60 foot times with a 500$ revmax converter and 1.72 with the 1200$ curcle D converter.
swapped to the TH400 and 1.58 60 foot on motor. ET was a 4 or 5 MPH gain as well. But, I’ll note I also went to a 8” 5000 converter from the 10” 4L80. I did try a 4200 10” billet converter but swapped the car from carb to EFI, so don’t have a report of a true back to back on that.
TH400 in to the car was a massive gain on motor. 1.68 60 foot times with a 500$ revmax converter and 1.72 with the 1200$ curcle D converter.
swapped to the TH400 and 1.58 60 foot on motor. ET was a 4 or 5 MPH gain as well. But, I’ll note I also went to a 8” 5000 converter from the 10” 4L80. I did try a 4200 10” billet converter but swapped the car from carb to EFI, so don’t have a report of a true back to back on that.