CR on YH Pistons

cavaddict

As above really...what is the CR raise if going from standard to YH pistons? cheers..

sdbutler10

Yh go to about 12:1 I think standard is about 10:1

cavaddict

EEeeebeeejeezus!! Hmmm 12:1 sounds a bit high....will be using a Saab gasket then!! 😃

cavaddict

vocky wrote:
I would certainly fit eagle rods and if you want to raise the compression then use standard z22yh pistons as they are 11:1 cr rather than 10:1 cr

Oooo...just found this (thanks to the handy thread link at the bottom)....soooo...is it 12:1 or 11:1? notsure.gif

ATOM_X

cavaddict said:
vocky wrote:
I would certainly fit eagle rods and if you want to raise the compression then use standard z22yh pistons as they are 11:1 cr rather than 10:1 cr

Oooo...just found this (thanks to the handy thread link at the bottom)....soooo...is it 12:1 or 11:1? notsure.gif

Early quotes by VX said 11:1 CR
Later quotes said 12:1 CR

You can fit them with standard gasket no problem
In fact try skimming 1.00mm off the head
that will blow your brains out

cavaddict

Well...haven't decided what to skim off just yet....dont want loads of probs with detonation and i have got a shed load of Saab gaskets here...sooo...might take 0.5 off...bung a Saab gasket on and see what happens 😃