Quote Originally Posted by Mike Kopstain View Post
Sure but as I mentioned earlier, it's all out there, both actual data and empirical data and not just with 3800s/ m90s.

BlueGTP91's assessment of hotter/ less dense air translating to less knock is just not accurate. If it was then we'd just all shut off our intercoolers in the summer and be able to run smaller pulleys because now the air is hotter and less dense... lol. It's just not accurate and it goes against basic common knowledge.

The only time I'd expect someone to have to pulley up in the winter is if they built their car in the dead of summer, when it was hot and the setup was built to be right on the cusp of knocking. Otherwise, if it's setup properly you really shouldn't have to pulley up in cooler weather.
And if we don't have an intercooler?