I am in the process of having a motor built. At this point I could add the CTR crank pulley. I have heard good and bad things about it. I am testing the waters to get a general thought. All inputs welcome.

 

From what I hear Chris you can just lighten the stock pulley.

 

Not worth it IMO.

 

If I bought one, even if it was new, i`d check to make sure it`s balanced.


[Modified by vtecvoodoo, 11:04 AM 11/18/2002]

 

I take it that the motor you are having built isn't being blanced? Or you haven't got to the assembly yet? If the bottom end is already put together I would recomend using the original pully.

Just my $.02

 

For the quick responses..

 

ryan,

how do you check to see if the pulley is balanced? i bought one of those wanna-be N1 pulleys from inlinefour b/c i wasnt using my a/c or p/s anymore.

 

Take it to a good machine shop.

 

All honda crank pulleys are unique to the engine block design.
Aside from being a pulley to drive belts, it also acts as a harmonic balancer.
It prevents vibrations that will accelerate the wear on the main berings.

On honda engine, Each pulley is balanced towards a particular frequency range based on engine operating speed(rpm), crankshaft design (stroke) and crank weight. Unfortunately, its is a one piece design.
Some chevy motor's harmonic balancer are sperate from the pulleys. All they have to do is change the crank pulley (retain the same balancer) to a smaller one and all the drive accesories run slower and producer less drag.

Putting a pulley that was not designed for the block might (most likely) result in a shorter life for the crank main bearings.

To answer your question, use the pulley that came with your motor.
Unless you made drastic changes in you crank or engine design use the stock ones.


[Modified by JD_B18CDX, 2:55 PM 11/18/2002]

 

Alright, thanks guys...