Can anyone tell me what 140 PSI works out to a Compression Ratio.
Tar Rich

 

Having looked at a few articles I relised its not as easy as I first though, but could anyone hazard a ruff guess at what it might be?
Its a 3dr with a 2wd head a 200 block, not a lot of help I know.
Tar Rich

 

you cant work it out that way im afraid, what information are after and why do you need to know??

 

Just ordering a new chip I needed the Compression ratio

 

the engine is not the standard engine if it has the 200 block.
so have a look thru your reciepts for the engine rebuild (if you have them)
and see if you can sus out what pistons were used mate

 

Already tried that, no reciept for the bottom end I'm affraid.
Does the PSI reading have any bearing on the compression ratio, ie does it sound low comp?
Tar Rich

 

No the compression(psi)has no corelation to the comp ratio.

 

I have come relise this now, gotta turn the boost up and see
Rich

 

your going to have to stick some det cans on it and check the fuelling as well.

i take it you are going stage3 with 803's? good conversion on standard comp

 

T4, Greys, recon head with BD10's, RS500 Innercooler, WRC Head gasket and Grp A Everything else.
Before I bought my 3dr it was meant to be running 450BHP, but the guy just put the engine pretty much back to standard but left the block in it. Then sold it to a dealer which is where I bought it. At the time I was like "ye cause it was running 450" but I bought it anyway
Now I've bought loads of goodies for it to take it up to at least the 400 mark but still not sure about the block. it is a 200 block so I think is probably been moddifed.
Think I'll just get it setup and see how much boost it takes before it starts to det.
Rich