OR where it came from if he did? Impossible.
Piston pin offset "controversy"
- Thread starter replicaracer43
- Start date
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OR where it came from if he did? Impossible.
My understanding is that reversing the factory piston offset gives a more favourable rod-to-crank-angle [ leverage ] & it is this that can add a small amount of HP.
Don't see a friction benefit because when the rod changes direction at TDC, the piston is stationary & movement/motion is reqd between two surfaces to create friction.
Don't see a friction benefit because when the rod changes direction at TDC, the piston is stationary & movement/motion is reqd between two surfaces to create friction.
67autocross
A new iron curtain drawn across the 49th parallel
You guys are all getting played by a bunch of YouTube whores starting a fake ***** festival to get more views...and make money so they can build cars while you have to go to work...
Bighead440
Well-Known Member
It does reduce drag inside the engine, supposedly with an increase on noise, but it's barely noticeable, mostly when cold. I have done it for 35 years in re-ring type performance builds with stock pistons, and "replacement" forged TRW pistons which are also offset. The 1/16" ring TRW "performance/race" pistons are centered pin. On a 440, with 2355F 6-pack forged pistons, reversed at .0035" skirt clearance, there is barely any noise factor cold. A 360 with Badger cast pistons fitted at .0015" and reversed, no audible piston noise at idle cold that I can detect. I cannot verify back-to-back performance gains, however.
Dartswinger70
Well-Known Member
This is probably the best post in this thread ! LOL! Someone who gets what UTG and others like him is about. Why do you think he is building junk? because everyone else already had a show where they order all the best out of a Summit/Jegs catalog and put it together. UTG had to come up with something different to be marketable. That piston offset BS with Freiburger was probably set up via a phone call to gain views for both channels.
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