Dyno Testing Piston Rings - Conventional, Metric , Gas Ported & Gapless Rings - Surprising Results!

Shaver Specialties Racing Engine has been building championship winning engines for decades, and over that time, their choice of piston rings have evolved. In this detailed video, "Dyno" Don MacAskill and Lake Speed Jr reveal their proven test methodology, and then take you through the process of testing traditional 1/16, 1/16, 3/16 size rings versus modern 1.0, 1.0, 2.0mm rings. The guys also try a Gapless & Gas Ported 1.0mm top ring just for fun.
This video builds off a 10 year history of testing, so here are the links to the previous tests mentioned in the video.
Gas Port Testing (No Gas Ports vs Gas Ported Rings vs Gas Ported Pistons) • Do Gas Ports Reduce Bl...
Engine Performance Expo - Dyno Testing 101
• Engine Performance Exp...
Proper Engine Break-In Procedure - Dyno
• Don't RUIN Your Engine...
Engine Break-In Without a Dyno
• How To Break-In An Eng...
Engine Temperature Effects of Piston Rings
• Engine Running HOT? Wa...
#RacingEngine #CylinderBore #CylinderHoning #PistonRings #Enginetechnology #horsepower #engine

[@robertwest3093]

Even the 1/16 ring package is hands down better than the old school 5/64 rings. They were a pain to work with and typically take ~35 lb/ft to turn the crank. Just going to 1/16 rings cuts it to around 40 percent of the 5/64. I can’t imagine how awesome the 1mm rings are! A side benefit of low tension rings is that your bore hardly wears. At 150,000 miles my 1990 Mustang 5.0 had ZERO lip in the cylinder. And they use 1/16 rings.

[@andrewb8548]

The way that third guy looked at Lake using that speeder told me 2 things. 1. He's got a Milwaukee he bought a year or two ago and its the greatest thing since sliced bread. 2. He spent the 30 years crapping on air tools extolling the virtues of the speeder.

[@derrelcarter9401]

Is the Gapless gas ported ring in 1mm x 1mm x 2mm a viable choice for a True street driven vehicle? I am talking about a 400 to 500 horse smallblock?

[@HioSSilver1999]

What's funny is all the race car guys be like...gotta have that gapless ported ring.....but it would actually benefit a pick up truck the most lol.

[@Jason-kn3tw]

You're so excited you forgot to say much the gains were - I like the idea but till I see a independent test like engine masters or Richard holdener I'm not convinced totally - still interesting

[@robertwest3093]

These guys are living the dream! Getting PAID to work on engines and dyno testing them.

[@waynekarjala2032]

Why don't you leave the overlay up there so we can study it?

[@asciimation]

Has anyone done dyno tests of the same engine, piston, ring combination but with different piston ring gaps? We spend so much effort and a lot of talk is done around getting the ring gaps correct but how much does it really matter? Too small is obviously bad but how bad is too big? I wonder if you only really see the difference on your high power US V8 type engines. I play with vintage 4 cylinder British engines with 1/10 the horse power so I doubt the ring gaps matter much at all!

[@460EFI]

I would only assume, as power and cylinder pressure increase, the power gain is going to increase as well, no? Particularly in a diesel application?

[@dondotterer24]

All about friction and ring seal at the same

[@downtownbmx4563]

I love the energy you guys put into your videos thanks for all the info...

[@chalkster4723]

Tremendous job. Can't wait to include this Gas Ported option in my '43 Flathead build. Just a hint of modern high tech with ol'school classic 👍🏻

[@MrDanielSoliz]

Great video Lake! You and Don are Awesome!!!!!! 👍👍👍👍

[@johnelliott7375]

Thanks for sharing this with us you all!

[@ts302]

Great video Gentlemen! With respect to lower water & oil temps running the 1mm ring package, is this mainly from the reduced piston ring friction, and or due to less heat transfer from the piston/combustion chamber? Less heat transfer means a hotter piston/chamber which equals more HP? Thank you!

[@nathanm5415]

Awsome work !!

[@CherezianRacing]

Excellent video. My question about thin ring packages is the longevity and oil consumption. Do they hold their tension on the cylinder walls over time like thick rings do? And what kind of increased oil consumption can you assume with the thin rings?

[@00dogvic21]

Can you do a test on speed of air piston sometime just like you did keep everything else the same and see if there compression differences and see if there is much to gain on that area

[@TheClintmeister]

Dam I learn SSSSOOOOOO much from you crazy guys! Keep it up!

[@deadeye4543]

What do you do to maintain rotating assembly balance when replacing pistons and ring assemblies?