do underdrive pulleys cause problems???

 

depends on which pulleys you are talking about. If you are talking about getting an underdriven crank pulley, you're prolly thinking about getting a UR pulley, which frees up a minescule amount of HP at the sacrifice of engine longevity, since it does not dampen crankshaft torsional harmonic vibrations. People will debate this to no end and say UR pulleys are fine, but most that will say that don't tear their engines down very often to see the wear on the bearings and other internals. There are other, ways to gain HP without going to a UR pulley - removing your PS, ABS, A/C, and other weight savings will see better gains than putting on an undampened crank pulley, and cost $0.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tim2179 &raquo;</TD></TR><TR><TD CLASS="quote">depends on which pulleys you are talking about. If you are talking about getting an underdriven crank pulley, you're prolly thinking about getting a UR pulley, which frees up a minescule amount of HP at the sacrifice of engine longevity, since it does not dampen crankshaft torsional harmonic vibrations. People will debate this to no end and say UR pulleys are fine, but most that will say that don't tear their engines down very often to see the wear on the bearings and other internals. There are other, ways to gain HP without going to a UR pulley - removing your PS, ABS, A/C, and other weight savings will see better gains than putting on an undampened crank pulley, and cost $0.</TD></TR></TABLE>


Great advice- I have no P/S or A/C and I can tell a difference in performance, and I spent a whopping $0 and about 5-10 minutes doing it.