Is 10.6:1 to much to run in street car ( not daily driver ).
Spec is:
355
canfield alu heads 64cc
lt4 hotcam.

Thanks

 

10.6:1 c/r with aluminum heads should work just fine, just keep good gas in it. (ie 93octane)

what are the specs on that cam?

 

should be fine, granted you keep good gas in it. you can get away with a bit more comp since you have aluminum heads.

 

With that cam you should be fine. But it will depend on how you install the cam. The more you advance a cam the less compression ratio you can run. The more you retard a cam the more compression ratio you can run. You need to search for a dynamic compression calculator and run the numbers. You will want to go no higher than 8.5 on the dcr to be safe. Not saying you can't go higher but it becomes more problematic.

 

thanks guys

I installed the cam straight up, the easy way

Is there any negative aspect of running a dome pistons? i heard it can mess upp things like air turbulence and quench??

 

tt

 

domed pistons aren't the best for flame travel, you're right on that. Kills the quench effect. Milling the block or heads is a better way to up your CR.

is that (domes) how you planned on getting 10..6:1 CR? Or were you meaning to use domes to get it even higher? Either way, i'd avoid them and just stick to flat tops.

 

On an aluminum headed motor? Or iron?

-- Joe

 

My new motor is 10.8:1 static and 8.7:1 dynamic. It has no problem running lots of advance with 91oct, i have also run 87 but backed off the timing to be safe and didnt have any problems.

BTW this is on the good ol' iron 416's

 

Aluminum.

 

I run 12.5:1 on mine with Forged flat top pistons. It runs good on E85 (105 oct)or premium gas (93 oct) with tolune (114 oct) mixed in. But I try to run 105 oct. for the street.