Just a heads up for those looking to save some money.

The Summit branded gas ported rings are actually Total Seal and come with all the paperwork that says so in the box.

Thanks for sharing.

That's helpful, thanks! I've been pretty happy with all of the Summit branded stuff I've purchased so far, glad to hear they're sourcing from reputable companies.

Same here, the summit roller timing chain setup is exactly the same as Comp's kit and a good bit cheaper.

The question is WHY use a gas ported ring? IMO its a bit of a gimmick for most. The ONLY place I could see using them is on a Stock Eliminator car since they are not allowed to use a gas ported piston.

Street car.

Gas ports will get carboned up.

I have no experience with them but Total Seal says they make more horsepower than gas ported pistons. I think they have a video to support their claims.

Bill

They make same claims about gapless stuff as well...Let me know how many serious race engines run those . Also let me know how many ported ring sets you find on those same serious and heads up cars. They are NOT new. I spend a fair amount of time around stuff that makes power. And the ONLY place we have ever used a ported ring is in a stocker...The reason because they are not allowed a gas ported piston...BTW there comparisons against a gas ported piston are ones with LATERAL gas ports. Most all agree that's not the hot ticket..

Thread on Yellow bullet about this, jury is still out as far as I can tell

https://www.yellowbullet.com/thread...rings-make-a-massive-difference.2677310/

I wouldn't run them.

The ones I saw where I commented on the packaging are going in a friend's turbo LS.

I haven't purchased any and not sure if I will.

Why?

A ring of varied thickness will not have even tension. Also the difference in thickness effects heat absorbed by the ring, and adds more potential failure points.

So you’ve seen first hand the “uneven” tension? Or failures? I have 3 sets out there now, all with no less than 2 years on them without failure.

Yes, the bore shows a pattern similar to the grooves in the rings, and ive seen them broken. Might be a good thing for a mild motor, but no place for a race engine.

Would be interesting to see some examples, images of the bores and broken rings.

So they don't rotate in the bore like conventional rings do?

You got other problems with your rings not rotating, they would also have a bunch of blowby if they are making marks in the bore. I have done a bunch of dyno work of 2 barrel imca engines and they are required to run "stock" size rings. So they run 5/64 gas ported rings. The rings make about 8 hp, mid-range torque came up also. That is just over 2%. The engines had slightly less blowby during break-in (< .5 cfm). The owners do a leak down on the engines after every race, and so far no issues.

Joe

A great place for them, 2 barrel engines, street motors and mild motors. Power, and cylinder pressure will destroy them. Like I said, first hand experience with both problems I mentioned. Since it doesn't sound like any of the descriptions here are in any danger of damaging anything with power, you'll be just fine.

Goodson makes a hand held jig for less than $100... you can use it to radially gas port all the pistons your heart desires!