lightweight pulleys

[nonovurbizniz]

Originally posted by a96710
I read in a book that Honda engines are internally balanced as well so the removal of the harmonic balance when upgrading the crank pulley isn't that harmful. I dunno how true that is though.

F's and H's yes...

B's and D's NO...

the f's and h's have a "balance shaft" which is essentially a weighted shaft that spins with the crank to cancel vibration...

It doesn't matter though... even on an "internally balanced" engine... if you through a piece on the end of it that isn't balanced you just "externally un-balanced" your engine.

Also to adress the aem kit...

A. the gains can't be very much... and those are the expensive ones.
B. Underdriving the p/s pump is kind of silly because the only time it's really used is at idle... or damn near it... it's only power assist so it only really kicks on when your in a parking lot etc...

I'm sure the aem ones don't do harm but they're kinda pointless and overpriced imo...

As far as the other ones... like I said. lots of people have no probs... lots of people ***** and blame all sorts of dif. engine damage to them...