u/d pulleys and s/c

gooberhead320 · May 26th, 2008, 08:49 PM

can i use u/d pulleys when i have a s/c? i dont think i can but i thought i would ask

ESG-642T · May 26th, 2008, 09:06 PM

No, and buy the question I take it your sig is a false advertisement?

gooberhead320 · May 26th, 2008, 09:10 PM

the build will start wednesday

Onemanzu · May 27th, 2008, 12:25 AM

he meant the 8 pounds of boost...

and yes, you can use it if you want but a 25% reduction can result in a large loss in boost... you could, if you wanted, get a small pulley on the supercharger and try and mix and match and make something work, but its advised to return to stock

ItaliStang · May 27th, 2008, 12:57 AM

I'll take those u/d pulleys off your hands...

gooberhead320 · May 27th, 2008, 12:59 AM

dude i forgot about that car thing tonight haha

pm sent

ItaliStang · May 27th, 2008, 01:01 AM

we didn't go anyway... it looked like it was going to rain... and it's too f'in hot out...

gooberhead320 · May 27th, 2008, 01:02 AM

tell me about it dude. and the bugs are everywhere now

obdnanr · May 27th, 2008, 11:00 AM

umm i believe the easier it is for your shit to spin, ie lighter pulleys, the more it will boost. but im no expert.

Onemanzu · May 27th, 2008, 12:11 PM

Originally Posted by obdnanr

umm i believe the easier it is for your shit to spin, ie lighter pulleys, the more it will boost. but im no expert.

your backwards... a smaller pulley on the charger makes more boost... right??

why??

cause it spins more times per revolution of the crank... if you have a smaller crank, the boost pulley wont turn as many times and it wont build as much boost...

its the same thing as putting a larger boost pulley on the charger

V6 Stalker · May 27th, 2008, 02:37 PM

Originally Posted by Onemanzu

your backwards... a smaller pulley on the charger makes more boost... right??

why??

cause it spins more times per revolution of the crank... if you have a smaller crank, the boost pulley wont turn as many times and it wont build as much boost...

its the same thing as putting a larger boost pulley on the charger

damn... shot down hard lol.

HMUSN · May 27th, 2008, 02:57 PM

UD pulleys are for naturally aspirated motors.
they are indeed smaller but when you add boost into it they become the exact opposite.

Omz is Correct.
here is some info on explaining how they work and why you shouldn't have them with a super charged.. numbers as well.
UDP Tech

ESG-642T · May 27th, 2008, 08:23 PM

Originally Posted by Onemanzu

your backwards... a smaller pulley on the charger makes more boost... right??

why??

cause it spins more times per revolution of the crank... if you have a smaller crank, the boost pulley wont turn as many times and it wont build as much boost...

its the same thing as putting a larger boost pulley on the charger

And to think One doesn't own a s/c and he does

This is why we get custom made crank pulleys

May 26th, 2008, 09:06 PM	#2
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	No, and buy the question I take it your sig is a false advertisement? __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

May 27th, 2008, 12:25 AM	#4
Onemanzu ¡ʇsnq ɹo uʍop ǝpısdn Join Date: Oct 2006 Location: Looking for free hand jobs in poland springs nebraska... silly gooses Posts: 12,551 Blog Entries: 1 iTrader: 0 reviews	he meant the 8 pounds of boost... and yes, you can use it if you want but a 25% reduction can result in a large loss in boost... you could, if you wanted, get a small pulley on the supercharger and try and mix and match and make something work, but its advised to return to stock __________________ My Foz

May 27th, 2008, 11:00 AM	#9
obdnanr Hardcore Enthusiast 2003 v6 340/373 - yay for belts Join Date: Nov 2007 Location: around Posts: 1,764 iTrader: 0 reviews	umm i believe the easier it is for your shit to spin, ie lighter pulleys, the more it will boost. but im no expert. __________________ 4.2L, gforce t5, 8.8, d1sc, other shit. stang is down

May 27th, 2008, 02:57 PM	#12
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	UD pulleys are for naturally aspirated motors. they are indeed smaller but when you add boost into it they become the exact opposite. Omz is Correct. here is some info on explaining how they work and why you shouldn't have them with a super charged.. numbers as well. UDP Tech __________________

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May 27th, 2008, 12:57 AM	#5
ItaliStang Hardcore Enthusiast 01 V6 convertible too slow to try Join Date: Sep 2007 Location: Toledo Posts: 1,464 iTrader: 1 reviews	I'll take those u/d pulleys off your hands...

May 27th, 2008, 01:01 AM	#7
ItaliStang Hardcore Enthusiast 01 V6 convertible too slow to try Join Date: Sep 2007 Location: Toledo Posts: 1,464 iTrader: 1 reviews	we didn't go anyway... it looked like it was going to rain... and it's too f'in hot out...

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