i was just wondering how many seconds would a H.O. crankshaft and water pump pulleys shave off of my e/t???...im really considering putting those two performance pulleys on and just wondering how much time it would shave off...thanks for the replies....if any...o yea....and if it would effect my charging system cuz i have underglow in my garage and im about to put those on too.....

 

if you get a lot of aftermarket electronics (i.e. subs, amp, neon, fog lights....) then it could affect charging with a 42% reduction. otherwise, no. the main thing they will do is allow the accessories to be run with less engine power. i am seriously thinking about the u/d pulleys myself but i dont know about their effect on e/t times.

 

Take off pulley drag with an electric water pump
http://www.meziere.com/2004_catalog/13.pdf