whats the comp rate on the single cam ka pistons??how good are the oem ka-e pistons compared to after market pistons??

 

9:1:1 and they are fine unless you are going high HP

 

i read somewhere they were 11.7

 

that was incorrect

 

isnt that for E pistons in a DE block?

 

which are you talking about?

 

Compression ratio: 8.6:1 (9.1:1 for early 1989 240SX )

taken off wikipedia..

 

yeah, but i read that the chamber for the E head is alot bigger than a DE head. so the 'taller' E pistons is a cheap alternative for higher compression for us folks with a dohc motor, atleast thats what ive read. anybody else with personal experience care to verify this?

 

ya hit the nail on the head there.

 

yea ive heard about the E pistons going into the DE block for higher compression but i also head it tears up your motor?

 

Higher compression puts more strain on the motor if thats what u mean

 

lol, i guess that why. the motors not meant to run on high compression.

 

yea yall are right it does raise the compression, but i havent really heard of very many of the motors lasting...but there are some new pistons due to be released if not already that are like 11:1 comp made for the dual cam

 

supertech and wiseco make high CR pistons for the DE

 

je makes 11.1 pistons for the de motor...i was thinkin about gettin thoughs and some ams rods