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#1
February 20th, 2026, 08:36 PM
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Another video with our GMC V6 engine.
The video "The BANNED Rear Gear Ratio GM Quietly Used to Fake Horsepower Numbers". At 6 minutes and 34 seconds it will pan across our engine and at 7 minutes 4 seconds a 702 V12 follow by a diesel V6.
https://www.youtube.com/watch?v=Z_WtzjHTLOs Last edited by James; February 20th, 2026 at 08:42 PM. 
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#2
February 20th, 2026, 08:46 PM
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Re: Another video with our GMC V6 engine.
I'm not picking at you James, so don't get me wrong here.
What a stupid video and a load of BS. Gearing doesn't change hp.
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| The Following User Says Thank You to Prowbar For This Useful Post: | ||
jerrspud (Yesterday) | ||
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#3
February 20th, 2026, 10:23 PM
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Re: Another video with our GMC V6 engine.
My point was about showing our engines and not about HP.
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#4
February 21st, 2026, 07:31 PM
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Re: Another video with our GMC V6 engine.
Quote:
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#5
February 22nd, 2026, 01:02 AM
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Re: Another video with our GMC V6 engine.
No problem.
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| The Following User Says Thank You to James For This Useful Post: | ||
Prowbar (February 22nd, 2026) | ||
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#6
Yesterday, 09:44 PM
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Re: Another video with our GMC V6 engine.
Quote:
__________________
Jerr 1963 305 V6 1500 To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
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#7
Today, 02:05 AM
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Re: Another video with our GMC V6 engine.
This is my view on engine horsepower. Gearing does make a difference in the amount of work the engine can do. Horsepower can be rated at the flywheel or at the road wheel/brake after the final drive. As an example farm tractors are rated 2 horsepower ratings. 1 is flywheel/belt/pulley horsepower and the other is brake/wheel horsepower. In the Nebraska Tractor Testing Reviews the engineers give 2 horsepower ratings on the same tractor and the flywheel horsepower is always higher than the brake/wheel power. I believe that the car manufacturers in the 1960's used brake/wheel horsepower ratings to lower the HP to car weight ratio to get their cars in a sub high- performance class for insurance purposes. So does gearing change engine horsepower? Not at all at the flywheel - but power delivered to the wheel is a whole different animal - a farm tractor can pull a load easier in 2nd gear than 5th gear.
Last edited by lizziemeister'sV6; Today at 02:07 AM. Reason: spelling
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