Underdrive Crank pulley, water pulley??
I'm not as big on the underdrive as I would be weigh reduction of all of the pulleys, especially the larger ones. The less rotational mass, the better.
wtf is a turbo pulley?
Trust me, I've had my eye on them. When I rebuild the short block, I plan on installing lighter pulleys along with the BS delete.
Your baby??? Lol it's not a turbo, but def report back and let us know what u think. From talking to some people who have installed them, hasn't done much for performance. Good luck.My baby came in, just got to pop it on, its very nice... One question though the one on the scale in your pic does not look like mine, did you guys make a design change? and mine feels heavier than 13 oz, Ill have to weigh it but it looks bigger.
Well I got it for dress up mostly, I think personally from my past experience you have to replace pretty much all the pulleys if your going to do it right, and really an under drive crank would also be a good idea in general to get any benefit. Its a very nice looking finished piece, I did not expect to gain anything by just replacing a single pulley, there will be some gain from the reduced rotating weigh but the percentage will be small. I already got the turbo =)