H-D supercharger

[KenCobra03]

My '03 Cobra has a supercharger with a 3.65" pulley
on it, right from the factory.
Is the H-D supercharger an Eaton and what is the
size of your stock pulley? Ken

 

[lightninmike]

yeah ken the s/c is the same on the L cobra and the HD
and i think the pully is a 3.60 but i am not sure

 

[FordSVTFan]

The pulley is bigger than the L, but I am not sure the exact diameter.

 

[LIGHTNING LARRY]

ken you need the stock 2.93 Lightning pulley. Makes a very nice difference on your Cobra. :beer:

 

[KenCobra03]

MJCHIP has a Lightening 2.93" pulley.His Cobra flies.
Ok, I heard that the H-D pulley is a 3.40"
Can anybody confirm this? Cobra is a 3.65"stock.
A H-D 3.40" pulley could be a real slealth set up.
Ford pulley, only 1 pound more boost, 20 more rwhp
and with pulley cover on, Ford may never detect it.
Plus it runs with stock belt and needs no chip to run.

 

[Crockett59]

Here is something that will get you close. The L upper is 2.93 and the HD upper is 3.25, so in theory if you installed a HD upper you could make about a 1# or so more boost and if you installed an L upper maybe 3#'s?

http://www.nhtoc.com/forum/showthread.php?s=&threadid=2852&highlight=upper+pulley+size