Originally Posted by
Caddyshack
The higher the compression the more responsive the engine tends to be, in an ideal world we would run the highest possible, but we lose it to prevent detonation. I think people drop it to allow more boost higher up
Dropping to gain more reliability than more power is actually the same thing, it is a trade off, more power OR more reliability.
2.9bar through to the red line making 838bhp/666ft-lb with compression Ratio at 8.5:1 & this was back in 2008. The Latest will be more Boost & the same Compression Ratio 900+bhp/700ft-lb ? . Head lift becomes the problem so you solve that not drop CR & ruin the engine. It was 6.8 :1 when I first got involved making lethargic touring car type engines but state of the art in 1995. Its been evolving since then but most did not follow just excepted the Touring cars must be right. They were stuck around 600bhp in a laggy race car now 900bhp in a car with road manners is possible. Move on lads 2017 is already here Julian & Mark & any other moving on wont be wrong just look at the engines they produce. Having a compromise because your budget wont extend to the expense it costs to solve things like Head lift & Blocks cracking is another matter.