uncle tony's garage gets called out by the roadkill guys

Cuda416 said
Well, again, re-read my post/*****/rant...

So far, no one that I've seen has actually done anything to disprove it. So far I've seen it published from MoPar and Ford... If we're talking about a car that had 1000 miles on it back in the day, both Ma MoPar and the Blue oval say it helps. No one said anything about replacing pistons etc. This is stock stuff.

That said, can anyone show me a reason why NOT to do it? Again, so far, no one has done that either. Fresh stock build. Why NOT?

I stand by my post, and YES, a lot of the comments are all about bashing the guy, but ALL of the "other side" hasn't shown any proof of him being wrong as far as I've seen.

So unless you have actually done a real test, your response, like everyone's here, is opinion. Might be an educated opinion, but it's still opinion.

I already offered to test it. For free. I’m just not doing the work. But it doesn’t take a ton of logic to understand that if there is ANY gain it will be 1. Well within the margin of error and 2. It will be so insignificant it won’t matter.

As an example, let’s take a 275 HP 340. Swap the pistons bank to bank. A 1% increase in horsepower would now make it 277.5 horsepower. If it make a 5% increase (and I say ain’t no way in hell reversing piston offset would gain 5% or every piston manufacturer on the planet would do it...for a 5% gain in HP I’d consider prostituting my wife...well, maybe not now but when I was younger I would have) 288.75 HP. The former is a 2.5 HP gain and the latter is a 13.75 HP gain.

IMO 5% would be a DisneyWorld fantasy number. The 1% number is far more likely. Even if we consider the same number of 1% on a 500 HP engine you gain 25 HP. I know for a fact that any engine builder would beg for the 25 HP for something as simple as an offset pin. Yet I don’t know anyone asking for it.

Even in induction limited class racing like 2 barrel circle track stuff no one I know of is doing it. And none of the engine builders I know doing that stuff are back markers.

It just doesn’t add up. That’s not a knock on UT. That’s putting math to the myth.

EDIT: I forgot to add there is the assumption that the guys writing the books did the testing. Highly unlikely they tested it.

EDIT II: 1% of 500 HP is 5 HP not 25 like I wrote above. 25 HP would be a 5% gain.