churcherj
Member +
ive just taken out the pistons and rods i bought, and have emailed ross and have said the flat top pistons i have have a ratio of 9:5:1 or lower? what is stock compression, as this seems quite high? im planning to run a td04 at 1.4 bar but im unsure of the compression ratios and i need to inform the engineering firm..will be using a 1.2mm headgasket, can anyone confirm if this would be ok?