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9" crank pulley in progress.

Posted: Tue Jun 27, 2006 1:12 am
by douglas vincent
Image

Image

Posted: Tue Jun 27, 2006 1:55 am
by scuzzy
dude, that's freaking nuts.


all that weight on the front snub is going to trash your crank bearings.

Posted: Tue Jun 27, 2006 1:59 am
by douglas vincent
Its going to be lightend as much as possible.

And it will only weigh a little more then than the stock steel one.

Also, our bearing setup supposedly is VERY strong in the front.

Posted: Tue Jun 27, 2006 4:41 am
by tzedek
I bet it will still weigh less than the OEM pulley.

Posted: Tue Jun 27, 2006 4:43 am
by Splinter
It can weigh less and still have more rotational inertia.

Posted: Tue Jun 27, 2006 4:51 am
by douglas vincent
Not just agreed, but it WILL have serious rotational ineria!

I plan on sticking in dead donkeys and beating them!

Posted: Wed Jun 28, 2006 4:35 am
by Project_Legacy
what will this actually help you do? better launches?

Posted: Wed Jun 28, 2006 4:50 am
by 206er
turn up teh boost.
is it a piece of plate pressed onto a lightweight pulley that has had the grooves turned off? if so, why did you not use a stock pulley?

Posted: Wed Jun 28, 2006 4:59 am
by douglas vincent
More boost for the supercharger.

Aluminum, not steel.

Posted: Wed Jun 28, 2006 5:06 am
by Project_Legacy
ahh alright i get it. kool!

Posted: Wed Jun 28, 2006 5:39 pm
by douglas vincent
Done and being shipped!

Image

Posted: Wed Jun 28, 2006 7:00 pm
by sammydafish
damn... lookin good... who made that for you and what about did it run? Looks like a nice piece, I'd like to have one made for my Jag

Posted: Wed Jun 28, 2006 7:03 pm
by azn2nr
oh sweet jesus. we need pics of it insalled

Posted: Wed Jun 28, 2006 7:03 pm
by jnorion
How much boost does that give you?

Posted: Wed Jun 28, 2006 7:25 pm
by Murphy
can you get a soomed out pic? its hard to see what the size realy is, in those pics it looks like a wheels off a train

Posted: Wed Jun 28, 2006 8:07 pm
by douglas vincent
It cost me about $300 ($40 for the donor underdrive pulley and $260 for the labor, aluminum and shipping).

I will see if he wants to do some more.

It will give my about 10-11 psi (cross your fingers) I currently have 7-8. It will be hitting the efficiency maximum of the supercharger at 6000 rpm.

Posted: Thu Jun 29, 2006 2:30 am
by 206er
whats the ratio?

Posted: Thu Jun 29, 2006 3:44 am
by jnorion
In future news, Doug has blown his engine. Again. :P

Posted: Thu Jun 29, 2006 4:42 am
by Project_Legacy
get the tuning down and it should be alright... i think. :D

Posted: Thu Jun 29, 2006 6:25 am
by douglas vincent
Ratio is 2.5-1.

Currently I am running 12-1 AFR till redline

Posted: Thu Jun 29, 2006 12:42 pm
by SP-Boxer
I love it :!: Let us know what you gain with it :D

Pulley tuning is always a cheap way off tuning, guys with VW's do the same on their G60's. But this is extreme :-D Just gotta love it :-D

Posted: Thu Jun 29, 2006 1:20 pm
by sammydafish
SP-Boxer wrote:Pulley tuning is always a cheap way off tuning,
huh? that's about the only thing that sucks about a blower, if you want more boost, you need to get/make a new pully. Not nearly as cheap/easy as giving a twist to your MBC.


that's the only reason why the Jag is still running stock boost. :(

Posted: Tue Jul 04, 2006 4:49 pm
by SP-Boxer
For a VW G60 there are lots of pulley's on the market...

Posted: Tue Jul 04, 2006 7:45 pm
by bmxpunk
doug.... i honestly dont know what to say...... i kinda wanna drive up to just to see the dang thing...

Posted: Thu Jul 06, 2006 3:00 am
by azn2nr
um quick question.

why is it that some people seem to say that smaller pullies are better for superchargers (more boost) yet yours is hooooogggggeee