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oldcorollas
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
 
Re: UPGRADES FOR THE MIGHTY KE20 Wed, 26 October 2005 13:10 Go to previous message
i think you had bettr measure the combustion chamber volumes of the heads you do have.. maybe you have two 5K heads there Wink

the only way to work out how much to take off the head is to measure the combustion chamber volume.

well... if you don't want to change valve springs... then you are limited to maybe 6500-7000rpm.

if you go higher lift, you should shave down rocker posts, although i am not sure how that work with the hydraulic lifters..

you should also check that reducing base circle of cam will not affect lifters..

i would usually suggets more lift and then choose a duration to suit, but if you don't want to change anything else, it kinda limits things..

there should be no confusion.
measure the volume of the dish in the piston.
measure the volume of the combustion chambers.
add the volume of the head gasket (typically 0.8mm thick)
work otu compression ratio.

longer overlap cam requires more compression etc etc
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Read Message   UPGRADES FOR THE MIGHTY KE20 hurricaneThu, 20 October 2005 03:55
Read Message   Re: UPGRADES FOR THE MIGHTY KE20 beige_banditThu, 20 October 2005 04:08
Read Message   Re: UPGRADES FOR THE MIGHTY KE20 oldcorollasThu, 20 October 2005 05:59
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Read Message   Re: UPGRADES FOR THE MIGHTY KE20 Mr DOHCThu, 20 October 2005 05:35
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Read Message   Re: UPGRADES FOR THE MIGHTY KE20 oldcorollasMon, 24 October 2005 01:19
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Read Message   Re: UPGRADES FOR THE MIGHTY KE20  oldcorollasWed, 26 October 2005 13:10
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