compression ratio help, please
compression ratio help, please I need help in calculating a compression ratio. I have searched and found formulas but I can't get it to work right. Please help if you could.
These are the details:
Stock 5.7 Block
Forged Flat Top pistons
4.8 heads (209cc intake/63cc chamber)
Valves 1.55/2.02
These are the details:
Stock 5.7 Block
Forged Flat Top pistons
4.8 heads (209cc intake/63cc chamber)
Valves 1.55/2.02
Gross Valve Lift .608 / .608
Duration at .006 289 / 289
Lobe Lift .3580 / .3580
Lobe Separation 116
let me know if you need more info...
Are your pistons in or out of the hole? How much? What bore size are the pistons? What head gasket are you going to run?
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
I am trying to get a rough estimate for CR ratio. I was told that my cam was great for a turbo and I figured I already had forged pistons and rods.
Assuming the CR Ratio is around 10.5 : 1, is this too high to run a turbo?
Last edited by Friday13th; Dec 28, 2009 at 08:28 PM.
Pistons are level with the top of the block. Pistons are factory bore and I do not believe they have valve reliefs. Not sure which head gaskets yet.
I am trying to get a rough estimate for CR ratio. I was told that my cam was great for a turbo and I figured I already had forged pistons and rods.
Assuming the CR Ratio is around 10.5 : 1, is this too high to run a turbo?
I am trying to get a rough estimate for CR ratio. I was told that my cam was great for a turbo and I figured I already had forged pistons and rods.
Assuming the CR Ratio is around 10.5 : 1, is this too high to run a turbo?
