Craig, so far and just in the last month , did i finally
see a "Gapless-Ring Setup" do as good as a normal race ring setup !
i've had a fair number of gapless ring engines on my dyno ,
they look really good on a static leakdown test , but under full load they have a little more blowby CFM than a regular set .
All the engine builders around here who have tried them
in NHRA Stock or Super Stock have told me they slow down with them .
The only personal-experience with them i had was with a BBC 557 cid when i put the gapless 2nd rings in , the car lost a tenth ...when i put back a new set of Speed Pro plasma moly rings, the car picked up a tenth back to where it was !
What made think it was the rings was
1-it slowed down after , when i thought it should have ran faster
2-just before , thru the MPH-lights , a little smoke top end out of headers ....making me think gas pressure was getting trapped between 2nd gapless ring and top ring, unseating top rings ?????
3-went i went back to SP plasma moly , the ET came back
Never did call Total Seal to see what they thought
but did ask engine builders around here ..they basically told me the same stories of losing ET .
I think they are a very good ring setup for methanol dirt track engines , but not drag racing so far from what i've seen !
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Craig...you saw 2 % leakage on a static leakdown tester
..did you then put the engine full-throttle full-load
on the dyno , and measure CFM blowby ???
if you can , could you test this and post results ??
Larry Meaux (meauxracing@mindspring.com)
Meaux Racing Heads
MaxRace Software
ET_Analyst for DragRacers