Power Pulleys -

[97LT1Z28]

Hey G-force junkies! I am about to buy a crank reduction pulley for the Z28 but I didn't want to do it without consulting you first!

I have heard that if you install the crank reduction pulley without the special alternator pulley, it won't charge properly.

Is that true?

[TraceZ]

Your money is better spent elsewhere. The pulley mod costs alot for the power it returns.

The bigger crank pulley slows down the accessories. On a LT1 that is your alternator, A/C and PS pump. In order to prevent the battery from not charging properly you'll need to put a smaller pulley on the alternator to speed it back up, so forget about any gains from that. The A/C automatically disengages at WOT so there are really no gains from that either. That means the only thing you are really slowing down is the PS pump. A couple HP maybe?

Not worth it.

[97LT1Z28]

Thanks TraceZ. I'll wait until I can get something with more bang for my buck.

[Craig 94 TA GT]

Tracy is right...you get 0.7 peak horsepower...not worth it...here are the results:
http://www.ws6.com/mod-2.htm

[97LT1Z28]

Wow! Results were close to nothing! I'm glad I didn't blow my money on that mod. Thanks.