Copper Head Spacer?
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Pleasure the do me
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Copper Head Spacer?
I obtained a SCE copper self sealing head spacer for free. It supposedly drops your compression a point. Should I slap it on or chunk it? I got it for free...so it is no loss to me.
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Elitist Supra Asshole :)
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What is your compression gonna be W/O the spacer...
It depends. i wouldnt drop the compression too much lower than 8.5:1... lower than that, youll start too lose your off-boost torque and itll take longer to spool your turbo... but remember, less Static-compression ratio means more dynamic ratio (boost!) that you can run.
It depends. i wouldnt drop the compression too much lower than 8.5:1... lower than that, youll start too lose your off-boost torque and itll take longer to spool your turbo... but remember, less Static-compression ratio means more dynamic ratio (boost!) that you can run.
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Elitist Supra Asshole :)
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do it! get a T3/T4 60-1 and run it up to 14 psi w/o hesitation.
8.5:1 is a GREAT compression ratio for a Turbo car. a good balance of NA compression for off-boost power and spool-up, plus its still not sky high like stock CR which only lets you run like 6-9 psi reliably... like the GReddy/Drag kits, and what not. plus, i wanna see if it works.
8.5:1 is a GREAT compression ratio for a Turbo car. a good balance of NA compression for off-boost power and spool-up, plus its still not sky high like stock CR which only lets you run like 6-9 psi reliably... like the GReddy/Drag kits, and what not. plus, i wanna see if it works.
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TR Balla Donor Supreme
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DO NOT DO IT!! spacers and thick headgaskets are the WORST way to alter CR. they usually result in a failure. re-designign the combustion chamber without knowign what you are doing is disasterous.
Elitist Supra Asshole :)
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Actually he is right... but not from a combustin chamber dynamic standpoint. thermodynamically speaking, nothing bad will come of lowering the compression and raising the combustion chamber away from the dome of the piston..
but, in relation to cam timing and valvetrain dynamics, it will be bad. Raising the head away from the block puts more distannce between the cam gear/s and the crank shaft. so itll mess up your cam timing, especially on a DOHC. On an OHV pushrod... it messes up to the point where you need lenthened pushrods. of course, its the same effect when you Mill the block and the head, and use a stock-sized Gasket, cuz that Raises the compression... but it still messes up the cam timing and what nto.
... i guess i forgot to mention that. but you can counter balance the effects if you have adjustable cam gears.
but, in relation to cam timing and valvetrain dynamics, it will be bad. Raising the head away from the block puts more distannce between the cam gear/s and the crank shaft. so itll mess up your cam timing, especially on a DOHC. On an OHV pushrod... it messes up to the point where you need lenthened pushrods. of course, its the same effect when you Mill the block and the head, and use a stock-sized Gasket, cuz that Raises the compression... but it still messes up the cam timing and what nto.
... i guess i forgot to mention that. but you can counter balance the effects if you have adjustable cam gears.
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