Hey guys. I'm sure there are other companies that offer a lightweight pulley, I just happend to choose this one. Has anyone tried a lightweight pulley on there 2.0? If so, how'd you like it? Does it rev alot quicker like it says? Where did you find a smaller accessory belt? If not, what are everyone's thoughts?Supposedly it frees up some horsepower and helps the engine rev alot faster. This one is from rsm racing.
Yes, I did a search, the only thing that came up was that everyone was unsure if it would work.

 

Make sure it's not an underdrive crank pulley.

 

Overdrive crank pulley like Jackson Racing ones would be nice though!

 

You shouldn't need a smaller belt. If you do, it won't work. In that case it would actually make the supercharger spin slower, which you don't want at all. If it's the same size, only lighter, I don't think it will make much of a difference. Your money would be better spent elsewhere. If it's bigger, it will spin the supercharger faster, and give you more boost. Basically the same as an upper pulley, but it will also spend more hp on driving the rest of the accessory belt.

 

First a lighter crank pulley will allow the engine to spin faster. Second there is not more clearance around the crank pulley to install a bigegr one.