Originally Posted by martysmartie

Contrary to above I always thought the opposite, I would think lower compression would allow you to add more ignition not less as you stand less chance of det, just like you this is what I have picked up, it would be good if someone who knows could confirm out of interest?

From what I understand, it used to be the done thing, everyone dropped compression which meant driveabilty suffered, but nowadays perhaps it with advances in mapping since the early days, this thankfully is why it isn't done on your averege spec car now?

Martin