I've been shopping around for pulleys for sometime now and am ready to buy, but not sure which one. The 15 or 17% Alta reduction pulley looks good but I would just like to hear from some people who have installed a pulley and what they would recommend. Any imput would be great!

 

This subject has been talked about for years here on NAM. Do a search on pulleys and YOU WILL come up with pages and pages of info. Some people here will rip your head off asking that question. Anyways, do a search and be ready to do some reading. If it matters, I would go with the 15% pulley. All around great size with no worries.

 

15% Alta V2

I had a M7 16% that misaligned and burned up belts

I have a 17% Alta V2 that causes detonation in warm weather w/91 octane

 

Randy Webb's web site has some information about them.

http://store.webbmotorsports.com/ind...in_page=page_3

 

Get a 15% from any of the vendors there all the same, you can't see it when it's on so there is no bling factor.

 

go with a alta 19%. its got kick@@s powerrr!!!!!!!

 

Short answer. 15%.

Long answer? Search the forums..

 

Any 15% pulley with 4 bolts or more.

 

Buy the Alta V2.0 17%. I love mine. Only time I ever had pinging was after buying cheep truck stop gas in GA. If you find the 17 to be to much buy the 15% hub and put it on.