? about crank pulley

[Ent0ne]

im doing a b18c1 swap into my 98 civic, when i got the engine the crank pulley is in bad shape, so i was wondering if i should buy an OEM one or one of those underdrive pulleys (Unorthodox), what the differents in the pulleys? ( i still want to keep pw steering and ac).

[pdiggitydogg]

oem
underdrive crank pullies are junk...99% of them are not balanced and you can kill your engine that way
(world race motors use stock pullies)

[ebpda9]

umm the aftermarket pulleys are balanced perfectly, it's that the oem pulleys have the harmonic balancer in them, whcih will kill the engine pretty quick if you rev like crazy

[pdiggitydogg]

well thats contrary to what ive read
Most of the pulleys Ive seen (AEM,UR,and something else) on a balance wheel are off. I wish I could remember where I saw the article on it... Several pulleys from each manufacturer were tested to show that it was not just a bad pulley.

As the harmonic balancer, yeah they dont have those either.
Not a smart thing for a street car...

This is just one of those things like n2o...some say its evil some say its not....Im on the evil side.

[cashizslick]

I heard that aftermarket pullies in general are a waste, the only one that does ANYTHING is the crank pully which adds stress to your motor.

BTW< anybody who wants to replace other pullies with AF ones should just remove their ac and save their money.

[AzCivic]

bottom line: dont get one

[Shaved &/or Laid]

i agree with Az and Cash. Ironic.

[Honda_Tengoku]

agree here. harmonic vibrations will rip your engine to pieces in about 30,000 miles