2.76 pulley with crank pulley?

[FatalBite]

Can you use a lower crank pulley with the 2.76 pulley or is that too much over spin for the eaton?

 

[tj04cobra]

maybe a 2lb or 4lb lower but anything bigger than that would def over spin it. is it a stock blower or has it been ported?

 

[LuDamiKE81]

Some may say it creates too much heat some will say do it. I have a 2.76/4lb with no problems and is a great pulley combo for a ported blower also.

 

[Root1022]

On an unported i wouldnt go over a 2# just incase, i know people run 4#'s though

 

[FatalBite]

Its unported eaton with idler,2.76,cai,TB,PL,o/r x,flows,pred tune, right now puts down 452rwhp 485rwtq

 

[FatalBite]

well with my old motor i blew up, dont know with new remanufactured motor

 

[darkone19]

For a nonported blower I think the sweetspot is a 2.76-2.80 upper only. When it gets ported then you can efficiently run the 2.93/4, 2.76/4, 2.93/6 and so on.

 

[96stanggt]

Adding a 4lb to that 2.76 would be a nice combo, ported or not. Porting it would make it more effecient in the higher rpms and repeated runs.