Re: AM Rings?
 

One more helpful hint.... Excessive back clearance is not a good thing. Combined with "loose" side clearance, excessive back clearance has a negative effect on ring stability.

Re: AM Rings?
 

Re: AM Rings?
 

I do not know what the back clearance is Lee. You mentioned that it should be a minimum of 0.005" but if it is significantly greater, due to the ring cross section width, then stability does become an issue that will be exacerbated by higher side clearance. I'm more concerned about longevity than flutter.

Have you checked the ring cross section width & compared it to a new stock ring? I can get you that measurement from a new one if you like. This was one of the principal concerns with the Total Seal rings. It would be nice to resolve this.

Re: AM Rings?
 

See what you get on the measurement.....I will measure one here


1st ring side clearance is .004
2nd ring side clearance is .003

Re: AM Rings?
 

I see a difference of about -.0025 to -.003...

total seal is thinner

Re: AM Rings?
 

I will call total seal on Monday; the guy I spoke to was very confident that these would be fine...will send him a note and call. This is where having someone who is truly an expert in rings would help.

There is alot of info out there.....what is true and what is belief are hard to discern


I did send them the OEMs when I ordered them to compare

Re: AM Rings?
 

So happens I will be seeing A couple of real experts on the LT5 next weekend :-)

Re: AM Rings?
 

Used a caliper to measure the backspace on the piston, then measured it against the ring width, and check with feeler gauge: .016 on the Stock and .026 on the Total seal

Re: AM Rings?
 

I don't see anywhere that references too much backspacing.....the ring is actually pushed out against the liner due to compression.....so not sure what I should be referencing.....

Any clues? I did send a note to total seal on specs

Re: AM Rings?
 

Should have just went with a damn 368