Thread: SR20VE+SR16 piston+ ??headgasket = 12:1 compression ratio?

I was trying to do some research on here but I couldn't find what I needed. I understtod from a thread on the othe forum that sr16 pistons in a ve would yield a 13:5 compression ratio. Obviously that is not going to work on 93 octane. I want to acheive a compression ratio that is pump gas friendly say a 12:1. Can I achieve that by getting a 0.5mm thicker headgasket and taking 1mm of the top of the sr16 piston?

Basically my goal is to have somewhere around 12:1 compression using SR16 pistons. I would just like to know what mods would be needed to achieve this.

You can try to dwnld a worksheet and put in the relevant parameters. There seems to be a lot of guessing where your question is concerned.

1mm off the 16ve pistons is 12.7:1 CR quite a few NZ Boys run this setup.
PM Clint (on this forum) for more details.

hmmm i wonder how an uncut sr16ve piston would go in a rwd with e85....

recoat the sr16 pistons. i think sr16 pistons in a sr20ve is around 11:1 not near 13

Total rubbish, sr16 pistons in a DE is 11.8:1, and in a VE is about 13.5:1 or so.

please don't guess, this has been looked at carefully by lots of knowledgeable members with real numbers for the head volumes and piston dome volumes.

Mike

Any links on this forum?

I think it was done on the other forum in a thread started by Andreas...

Mike

Has anyone tried a motor with uncut SR16 pistons yet?