I'm trying to do a B20 all motor 10.5:1 CR
*do i need a block gurdle?
*if so which one is better and easyer to install.?

 

How high do you plan to set your rev limit?

 

up to 8500 when racing. I don't like to beat on my car unless in a race.

 

1st why only 10.5 compression?, you can go as high as 12:1 on 91, def get the gridle it's a little insurance for your motor. as far as better it's basically the same thing the z10 is more rigid/nicer looking but it's also a lot more expensive. the gsr gridle just needs some simple machining to bolt up.

 

well i onlky wanna go 10.5:1 all because i also wanna go with a mild turbo.