Quote:
Originally Posted by ixfxi
well, it is a bit of a fact that the factory pulleys do absorb vibration and that the billet pulleys lack that ability. not to mention they underdrive the AC and virtually everything else, which sucks for any daily driven car.
being someone whos had a UR pulley on my KA, it didnt help that POS of a motor become any less shitty than it was. the motor was just as slow, with or without that useless hunk of an aluminum paperweight.
-m
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Well it mainly changes the way harmonics interfere with the engine, Another reason I'm glad my engine is internally balanced.
Yea I realize the weight lost on the crank pulley is nothing compared to what can be lost on lighter rims and tires, I lost 10 lbs PER wheel by switching from stock rims to stock size motegi tracklites(7lbs lost). and running General Tire Altimax HP's vs Falken ZE 912's(3lbs lost) both 195/60/r15. Braking, steering and acceleration are better. Most noticably however is the power steering feel after I'm moving, its easier to turn than before. The car also breaks free from a stand still much easier and accelerates easier with less gas than before.
I'll end up doing pulleys on my car when I do my flywheel to kind of balance out the rotational weight loss...
I'm not sure why hes so hung up on it really. I've tried to convince him otherwise but so far its done no good. I told him to get an exhaust system first, as he already has an intake it would compliment the car the most for what modifications he has already. What people dont seem to understand is what % of weight loss you are actually getting by switching to a lightweight pulley set, with everything in the rotating assembly counted up, its really not that much.
Thanks for the replies, I'll try looking up teh stock pulleys for the cars on Rockauto.com