Compression Calculation
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Teching In
Joined: Jun 2005
Posts: 21
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Compression Calculation Hello all,
I've had a new motor built up for my Corvette and I'm trying to calculate the compression ratio.
By my calculations, I'm coming up with a static compression ratio of 11.86:1.
This is higher than I expected because I asked for the motor to be built for around 10.5:1 static so it would run on pump gas.
I was hoping someone could check my math.
Here's the specs:
LS2 block - Not sure what the deck height is, but it was a brand new block
Callies Dragonslayor Crank 4.00" Stroke
Compstar 6.125" LS1 Rods
Custom Diamond Flat-top Pistons:
Bore 4.020"
Comp. Height 1.125"
Effective Volume -1.8cc
Valve Depth Intake .173 Exhaust .107
Cometic Head Gasket (C5317-040, which I believe is 4.13" bore, .040 compressed thickness)
AFR 205 66cc Heads
Thanks in advance!
Alan
I've had a new motor built up for my Corvette and I'm trying to calculate the compression ratio.
By my calculations, I'm coming up with a static compression ratio of 11.86:1.
This is higher than I expected because I asked for the motor to be built for around 10.5:1 static so it would run on pump gas.
I was hoping someone could check my math.
Here's the specs:
LS2 block - Not sure what the deck height is, but it was a brand new block
Callies Dragonslayor Crank 4.00" Stroke
Compstar 6.125" LS1 Rods
Custom Diamond Flat-top Pistons:
Bore 4.020"
Comp. Height 1.125"
Effective Volume -1.8cc
Valve Depth Intake .173 Exhaust .107
Cometic Head Gasket (C5317-040, which I believe is 4.13" bore, .040 compressed thickness)
AFR 205 66cc Heads
Thanks in advance!
Alan
