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oldman · 01-24-2020, 04:54 PM

http://blog.wiseco.com/everything-yo...about-ring-gap

My second gap is larger than the first. My actual piston card called for .016. I felt that was too close and for my boosted app went with .020 top, .022 second. I felt this was heck of big for a low boost engine, but better slightly bigger than too small.

4.065 bore x HP racing of .0053 = .0215, so I'm slightly tight on the top and slightly loose on the bottom. To be honest I think they are slightly loose for my application.
I'm boost / octane limited on 11.5 CR and this is a street car so single through the gear WOT runs.

01-24-2020, 04:54 PM	#4
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,346	http://blog.wiseco.com/everything-yo...about-ring-gap My second gap is larger than the first. My actual piston card called for .016. I felt that was too close and for my boosted app went with .020 top, .022 second. I felt this was heck of big for a low boost engine, but better slightly bigger than too small. 4.065 bore x HP racing of .0053 = .0215, so I'm slightly tight on the top and slightly loose on the bottom. To be honest I think they are slightly loose for my application. I'm boost / octane limited on 11.5 CR and this is a street car so single through the gear WOT runs. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.