Transmission loss through the A10?

Gary H · 06-06-2019, 03:00 PM

Just wondering what the general consensus is in terms of the loss between crank and wheel horsepower?
Being a far more modern car I'd expect it to be in the 10-15% range?
So stock cars on the dyno pulling 575 would be in the moreoreless at the claimed 650?
My previous car, a heavily tuned HSV R8 (similar to the old Pontiac G8) was putting down 550 at teh wheels but almost 700 at the crank through a Tremec 6060 manual box!

LT4 · 06-06-2019, 03:35 PM

Dyno have shown 15% loss with manual transmissions. The transmission would not be a huge factor, right, since they all test in the same (or near same) ratio?

Fifth:0.85 A10 vs 0.80 M6
Sixth: 0.67 A10 vs 0.63 M6

FWIW, Hellcats have 12% loss.

source:
https://www.torquenews.com/106/2017-...s-down-554rwhp

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06-06-2019, 03:00 PM	#1
Gary H Drives: Camaro ZL1 Join Date: Apr 2019 Location: London, UK Posts: 304	Transmission loss through the A10? Just wondering what the general consensus is in terms of the loss between crank and wheel horsepower? Being a far more modern car I'd expect it to be in the 10-15% range? So stock cars on the dyno pulling 575 would be in the moreoreless at the claimed 650? My previous car, a heavily tuned HSV R8 (similar to the old Pontiac G8) was putting down 550 at teh wheels but almost 700 at the crank through a Tremec 6060 manual box!

06-06-2019, 03:35 PM	#2
LT4 Drives: all sold, getting another soon.. Join Date: May 2019 Location: South Florida Posts: 282	Dyno have shown 15% loss with manual transmissions. The transmission would not be a huge factor, right, since they all test in the same (or near same) ratio? Fifth:0.85 A10 vs 0.80 M6 Sixth: 0.67 A10 vs 0.63 M6 FWIW, Hellcats have 12% loss. source: https://www.torquenews.com/106/2017-...s-down-554rwhp .

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