Hey, can anyone tell me what a good compression ratio is for the 2.0 pinto engine and how u can boost the compression from standard to where you want it.

 

if your going for a full rebuild,deck the block so the piston sit about 15 tho out off the block,
this is a good way to rise the comp, also the odvious way is the skim the head,
if your running a lairy cam its a good idea to do a dummy build first to check valve clearance

 

Hey Dan, I don't understand the terms deck and 15proud completely, sorry I'm from south africa, I thought of skimming the head but I don't want to take off to much there. I want to put in a high lifting cam, maybe a kent fr 32, which is a really fast road cam, can I scheme the block an how much can I bore either on the 202 or 205 block? Thank you so much for you're help

 

by decking i mean skimming mate,skim the block down so the pistons stick out the top about 15 tho,
sorry i just looked at my last post and i see why you could nt understand it ,
i ve seen 205 blocks bored to 92mm , maybe could go more but i would nt be 100% sure mate

 

Depending upon fuel type used, I would recommend somewhere in the 11.5:1 for fast road use, and this will be fine on normal cast pistons. The easiest way to achieve this is by skimming the head by an appropriate amount. I can't give you any figures as you will need to burette the head chamber volume and work out your current C.R.

Regarding bore size, 93mm is the safe maximum, though I have built many 205 blocked engines on 94mm bore with no issues. If you suspect bore porosity then it is best to liner the block anyway, and then you can run up to 94mm with no issues.

Hope that helps.

 

Is that what they call the 2.1 conversion? What is a good piston to put in there? I understand from someone that u can fit a 2.8 piston from maybe a golf in there? Do u know anything from that?

 

Thanks I understand much better now, if I skim my block so far I can just assemble my engine again or is there something else I need to change with that, will it give more or less the same effect as a stroker cam?