keebler65

does anyone have a listing for all of the crank pulley diameters? when i say diameter, i'm talking about the alternator-belt portion of the pulley. like for the B16A, GSR, type R, LS, CRV?

thanks

keebler65

ttt...

hypa

bump for what could be a really good thread.

hypa

After getting my hands dirty, I have some measurements.

The (P30)b16 pulley measures 5.6" O/D.
The (P72) GSR pulley measures 6" O/D.

FYI, the 5.6" yielded 9psi, and the 6" was 11psi. Both boost levels were with the JR 2.9" alternator pulley, and a still unknown (it's hard to reach ) nose pulley.

The Endyn alternator stepper measures 2.7".

keebler65

thanks for the info hypa

hypa

Something to add.....

CRV Pulley = 6.2"
Unorthodox crank = 4"

After running 11psi with a GSR crank pulley, I added the unorthodox, and hit a steady 6psi. I'm hoping that with tighter valves, and some valve timing changes to get it down to 5psi. Awesome boost for a high CR motor.

BodyKits NW

Were missing 1. What is the diameter of the ITR crank pulley then.

sdgenxr

Ok, so what exactaly would a different size crank pulley have other than spinning your accesories faster with a larger dia. or slower with a smaller dia?

keebler65

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sdgenxr &raquo;</TD></TR><TR><TD CLASS="quote">Ok, so what exactaly would a different size crank pulley have other than spinning your accesories faster with a larger dia. or slower with a smaller dia?</TD></TR></TABLE>

it matters if one of your "accessories" is a supercharger

integramic

ls have different sizes for different years also.