I made 254 whp on a 14% pulley and 13-14 psi of boost. 16+2 will give you a bit down low, run lean until you tune it and have supporting injectors. Oh and run really high AIT.

you're going to find that heat will quickly dissipate any gains you *would* have had going to nearly a 19% reduction. intact, a 15% will probably out perform the set up in a real world scenario unless you has meth injection.

sometimes, boost isn't the solution, flow=efficiency is.

A lot of peeps on this forum are running 16-18 psi and barley seeing 200whp. basically making their M45's spin the crap out of their efficiency range and really not doing much.

 

Just had mine done yesterday. Had a 15% Alta installed by a shop here in Bend OR for 180.00

 

irkath ... thanks for the advice.

 

The ATI pulley is dampened so this would be an ideal way to go

 

+1
Motor idles smooth as silk...prw damper is a bit less, but imo, sell the m7 pulley...max reduction you want to run is largely based on YOUR driving style...more rpms = lower reduction.
No reason to believe a basic well built motor like the mini has can't go many more than 150k no issue....

 

As stated above, we charge $200 flat rate for the labor, $99 for the pulley, and $28 for the belt, plus tax. I do not recommend un-dampened crank pulleys.