so i plan on buying a new pulley tom.. i am sticking with all Alta parts so im not sure if i should get the Alta Classic or the Version 2.0... what do you guys think??? please let me know im still pretty new at this Thanks

 

I'd say you should go with the Helix pulley -- 6 bolts instead of 4 like the Alta.

 

 

I strongly suggest the updated 2nd version.

 

The Version 2.0 looks good........lighter too as the body of the pulley is "ultra light aluminum". (From Alta's website.) I've had the original Alta 15% reduction pulley for 25000 miles or so and it's just fine with the 4 bolts. Just use blue loctite when fastening!

 

That's not the reason I would get the helix. Interchangability is the best part. Paying $50 to move to a 19% is much better than buying a whole new pulley for $100+. You pay similar prices for either the Alta or the Helix, but you get interchangability with the Helix. You may think you'll be fine with a 15%, but then again, maybe you won't. I ended up going from a 15% to a 19% in less than 5000 miles.

 

Yes the interchangability of the Helix pulleys is a benefit! MINIotaple how do you like the 19% compared to the 15%? Is the extra boost FUN low down in the revs compared to the 15%? Have you tracked your car-logged lots of continuous 4500 plus rpm-and had no drive belt issues? Thanks!

 

ok so i just bought the helix 17% pulley clamp on-style ($120) but can I use any mini pulley puller and belt tensioner tool... to change my pulley?? thanks

 

YES