Cams Sprockets, under pulleys,cams, drive power pulley Options

[H8DC3lica94]

Whats the difference in these??
i know that the cam is for the timing belt and the under pulley is similiar to that but found in the lower portion of the engine.
Dont really know where the drive pulleys go..

I have a 7a-fe engine and i'm looking for some hp increase.
Obx offers these parts for the corolla. but i cant find a dealer.

Any help is appreciated!

[edo17982]

cam gear(s) is in the end of the camshaft, linked to the timing belt.an adjustable one let you change the timing to better tune your engine
Underdrive crank pulley is like the original one but is lighter and the accessory section is smaller to have a lower resistance.
overdrive accessory pulleys have the same function of reduce weight and rotational mass by increasing the size to let the accessories run slower.
it seems that OBX products are impossible to have....If you can have one of the stuff you listed let me know cause I want them too!!!

This post has been edited by edo17982: May 20, 2003 - 2:58 PM