06-02-2006, 01:25 AM
ScottyB Wrote:Ding ding ding!!! barely engaging the clutch and getting the whole drivetrain engaged therefore the stress is considerably less..RJ Wrote:What is preloading the drivetrain?
i'm curious too. is it like barely engaging the clutch before dumping it as opposed to just dropping the clutch the whole way from the firewall?
Imagine therefore someone hitting you with a punch, his fist travels through the air and hits you in the face, hurts pretty bad right? Now have him put the fist on your skin, and then use the same force, its absorbed much better due to less initial shock. Thats why clutches and transmissions fail a lot with AWD. What happens is we get so much traction that instead of having the extra stress spun off in the wheels that energy is absorbed into the drivetrain causing extra stress.
LARGE reason why evos, wrxs, and dsm have this whole "trannies are weak" reputation. Only because they are beat the shit outta. Now take a honda with slicks and launch it almost at redline (turbo civic of course to make it on par with power on a wrx, evo, or dsm) and do that a bunch of times, like you see at the drag track, broken axles, destroyed transmissions and shit like that.