Originally Posted by getrdunn

Thanks guys. Some good input here. I see pros and cons. I suppose whatever we tend to have good luck with we tend to stay with. Ive been building engines for 30 plus years and never used them. That's not say there a great ring however I just haven't. That's why I started the thread to get a little education on such and appreciate the input. Interesting... Responses. I've always used the plasma moly also. My only issue with them is seating time. That could be my fault from excessive oil on the cylinders though prior to assm. I've done a few with wd 40 and seated quicker however just don't like to do that. Good bad indifferent.

Originally Posted by MILD THUNDER

Total seal ring company the leader in piston rings? I'd find that hard to believe.

Mahle Corporation, supplies General motors, Ford, Chrysler, BMW , Ferrari, Toyota, Audi, Harley Davidson, and over 100 other engine manufactures with rings. Just their "Aftermarket division" , had over 900 million in gross sales. Employs 1700 people, and has 23 plants around the world.

Total seal? under 50 employees, under 10 million in gross sales, 1 location in arizona.



I'm not Donald Trump, but I'd like to think, Mahle might know a little something about piston ring design , if companies like GM, FORD, Ferrari, Audi, and BMW, are going to them for piston rings.

Originally Posted by 14 apache

Ya but do they give you beer at the PRI show

Originally Posted by MILD THUNDER

I heard that if you have 7 percent less leakdown on the gauge per cylinder, you multiply that by 8 cylinders. You then gain 56% more horsepower, because your engine is now sealing 56 percent better.

Or is it you gain 56psi of cranking psi from installing them? Or 56hp? Or 5.6HP? Or 5.6" inches of vacuum? Dammit, I can't remember. They're just more gooder. Where's the beer.

Originally Posted by 14 apache

That's odd for a moly ring not to seal same machinist for all motors? Always seal fast. The steel rings take a bit. My engines with zero gap top picked up about 10hp per pull for 3or4 pulls on break in.

Originally Posted by getrdunn

Just had a thought that never dawned on me til now but last engine dyno'd we used sythetic. Ran into same issue a couple times before and typically would dyno with lighter weight conventional oil. Not saying for certain however anyone ever have same or similar with Molly rings? i believe it's certainly a possibility...

Originally Posted by 14 apache

You should do the pri show close to your neck of the woods. Some very cool stuff and free beer at 6pm served by gorges girls. Lot of fun. As far as gapless or gap rings my turds will pull over 25" vacuum on dyno.
BEER IN HAND!

Originally Posted by Black Baja

The motor wasn't honed properly. It's probably down 20-30 horsepower than what it could be with the proper finish on the cylinder walls.