Has anyone used the RSM crank pulley on their ecotec engines? I know you get quicker revs. Do you get better acceleration with the lighter weight? Does RSM have a stock size lighter weight alternator pulley to go with the crank as well? Would I benefit more by putting both of them on my car?

I hate everything that has to do with RSM. A bunch of thieves if you ask me. Try to find better parts/service elsewhere.

well they do pulleys ok



1989 Turbo Trans Am #82, 2007 Cobalt SS G85

there's a GP for the same thing going on right now... well it's full right now..

but you get 2 pullies.. for cheaper!

Steve Guzzetta wrote:Has anyone used the RSM crank pulley on their ecotec engines? I know you get quicker revs. Do you get better acceleration with the lighter weight? Does RSM have a stock size lighter weight alternator pulley to go with the crank as well? Would I benefit more by putting both of them on my car?

Yes I have the RSM pulley, I think its a little snappier TB response, yes they have a stock size Alt. Pulley, The benefits of paying those thieves $80.00 for their Alt. pulley to gain what 1-2 Horsepower if that is a waste, if you ask me. RSM, was a good company to deal with, years ago...now its pretty much gone to the dogs, on a lot of things, service for one.....

Hope that helps.





ECOTEC now with Maximum Bolt-Ons!!