No Device: affect of gearing on dyno numbers?

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Oct 3, 2024 | 10:53 AM

#11

Steve Cole

HD EFI Guru

Joined: Jan 2008

Posts: 4,462

Likes: 4,718

Quote:

Originally Posted by JCunningham

yes true its only a tool.Every dyno reads different and every run will read different.

Correct it's only a tool! One must watch that the tool is used correctly and not the way many are using them today. People have spent more time learning ways to cheat the dyno runs, than learning how to use it properly. Just look at anyone using the STD dyno correction on a HD engine. They are simply using it to lye to the customers and there is no excuse in the world to be using it. SAE wrote the standard and they say it is not to be used on any engine larger than 50 cu in or producing greater than 20 HP. It was also CANCELED back in August 1988.

Jul 2, 2025 | 04:12 PM

#12

NORTY FLATZ

Seasoned HDF Member

Joined: Jan 2015

Posts: 15,967

Likes: 7,068

From: Sandy Eggo's North County

Quote:

Originally Posted by WS6_Keith

Yes. The closer to a 1:1 ratio you have, the more power that will be transmitted to the tire as less power is used to accelerate the mass/inertia of the drivetrain due to torque multiplication of the gear ratio.

LOL, that's funny right there.
I know what you're trying to say, but it ain't like that! LOL.