supercharged18

i was wanting to know about upgrading,i put a 12 lb pulley and its only throwing down 8lbs,everybody is telling me to run a bigger pulley on the crankshaft but it runs off my alternator,i put a unorthadox supercharger crank pulley but it didnt help out much i want 12lbsssss.any information would be very helpful

Radyjr

iTrader: (4)

who ever told you put a bigger pulley has no idea about superchargers. the smaller the more boost. how do you think NHRA superchargers run on a tiny *** crankshaft pulley and a even smaller blower pulley

Lucid Moments

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Radyjr &raquo;</TD></TR><TR><TD CLASS="quote">who ever told you put a bigger pulley has no idea about superchargers. the smaller the more boost. how do you think NHRA superchargers run on a tiny *** crankshaft pulley and a even smaller blower pulley</TD></TR></TABLE>

I'm afraid I have to disagree. What determines the boost is the ratio between the crank pulley and the blower pulley. Change either one of those and you change the blower speed, and thus the boost. Bigger crank pulley or smaller blower pulley to increase the boost will work.

rmcdaniels

12 lbs will require both the bigger crank pulley and the smaller blower pulley. Also what engine management are you Using? The FMU that came with the kit won't support over 8 PSI, that's how I blew up my last engine.

supercharged18

im using hondata,fully tuned with 440cc injectors