Originally Posted by
Chris69
i didn't realise that, care to reccommend a compression ratio and cam package then seeing as you so quick to correct?
and your going from n/a to turbo so i'd always say a decent breather and oil cooler is needed.
Of course! I have no issues offering useful, factual information. On the standard cams, 98RON fuel and say 1.2-1.4 bar on a T3 (to get your 250bhp), you'll want a CR below 8:1. I have personally had issues with det @ 8.5:1 above 200bhp. For over 300bhp i'd go even lower.
With regards to oil coolers, I think sometimes people actually forget what they are. The hint is in the name. They cool oil. You only want to cool oil if it's too hot. If you don't know if it's too hot or not, then why try and cool it? An oil cooler requirement should be established from testing, not guessing.