Pulley Swap

2007 GT/CS · October 2nd, 2007, 10:21 PM

New guy here. I have a 2007 GT and keep hearing about changing the pulleys. Can someone tell me the purpose of doing so? Is this of any benefit?

Jucostud · October 2nd, 2007, 10:35 PM

you get about 10hp from changing the underdrive pullies. I think it makes everything more efficiant. Don't get them if you plan on running a big stereo system or if you plan on getting a supercharger.

06RedfireGT · October 2nd, 2007, 10:42 PM

Welcome to the site.

It slows down your accessories (ac compressor, alternator, ect) and reduces parasitic drag on the engine. They are worth about 10 hp. I would go with Steeda. They are $200 I think.

2007 GT/CS · October 6th, 2007, 09:34 PM

Thanks, that is what I thought and I don't know when I will afford the SC.

06VistaGT · October 6th, 2007, 10:06 PM

They simply reduce some of the parasitic loss. Only good for about 10Hp. I noticed my AC didn't run as cold after I put them on, but nothing too bad.

stanglifemike · October 7th, 2007, 01:29 AM

My ac still blows ice cold

MSCLCAR · October 7th, 2007, 12:17 PM

+1 ... Even with the dreadfully long and hot summer we just finished, my AC would just about freeze me out after a few minutes. No negatives noted w/ respect to the UDPs, but she revs faster, pulls through the RPM ranger a little faster, and MPG went up. Overall, it's a good, easy, worthwhile mod.

leebunnyz · October 7th, 2007, 12:54 PM

+2 AC is still freezing

October 2nd, 2007, 10:21 PM	#1
2007 GT/CS Newbie Join Date: Oct 2007 Posts: 24 iTrader: 0 reviews	Pulley Swap New guy here. I have a 2007 GT and keep hearing about changing the pulleys. Can someone tell me the purpose of doing so? Is this of any benefit?

October 2nd, 2007, 10:35 PM	#2
Jucostud booooost'd 2007 Mustang Join Date: Nov 2006 Location: drink'n ur kool-aid Posts: 7,043 iTrader: 0 reviews	you get about 10hp from changing the underdrive pullies. I think it makes everything more efficiant. Don't get them if you plan on running a big stereo system or if you plan on getting a supercharger. __________________ Jucostud's Official Build Thread 1988 LX HATCH 5.0 - FOR SALE $5,000 OBO 2007 vortech gt - SOLD! Looking for next project

October 2nd, 2007, 10:42 PM	#3
06RedfireGT One Man Wolf Pack 2006 Mustang GT 13ish....maybe Join Date: Aug 2006 Location: Regulatin On Some OGs Posts: 22,483 iTrader: 2 reviews	Welcome to the site. It slows down your accessories (ac compressor, alternator, ect) and reduces parasitic drag on the engine. They are worth about 10 hp. I would go with Steeda. They are $200 I think. __________________ ΜΟΛΩΝ ΛΑΒΕ

October 6th, 2007, 10:06 PM	#5
06VistaGT Hardcore Enthusiast 2006 Mustang GT Join Date: Oct 2007 Location: Fayetteville, NC Posts: 1,874 iTrader: 0 reviews	They simply reduce some of the parasitic loss. Only good for about 10Hp. I noticed my AC didn't run as cold after I put them on, but nothing too bad. __________________ Dyno vid: http://youtu.be/TkxUrW-mpBw

October 7th, 2007, 01:29 AM	#6
stanglifemike IBEATU 06 GT, 98 GT, & 93 Notch Join Date: Dec 2006 Location: Douglasville, GA Posts: 5,937 iTrader: 0 reviews	My ac still blows ice cold __________________ 98 GT: some stuff 06 GT: more stuff 93 Notch: 4 cyl at birth, now 5.0 drivetrain and stock exterior and interior= True Sleeper Paxton/Vortech Crew Member #3 FRPP's #1 Dealer Injected Engineering BMR Suspension

October 6th, 2007, 09:34 PM	#4
2007 GT/CS Newbie Join Date: Oct 2007 Posts: 24 iTrader: 0 reviews	Thanks, that is what I thought and I don't know when I will afford the SC.

October 7th, 2007, 12:17 PM	#7
MSCLCAR Regular 2007 Mustang GT Join Date: Apr 2007 Location: North Carolina Posts: 237 iTrader: 0 reviews	+1 ... Even with the dreadfully long and hot summer we just finished, my AC would just about freeze me out after a few minutes. No negatives noted w/ respect to the UDPs, but she revs faster, pulls through the RPM ranger a little faster, and MPG went up. Overall, it's a good, easy, worthwhile mod. __________________ '07 Alloy Grey Metallic GT Steeda UDP's Steeda UCA's & LCA's BMR Lowering Package FRPP Shocks/Struts C&L Racer CAI w/ SCT X-Cal 2 Tune Shelby TT Wheels (18x10 rear, 18x9 front) Nitto 555 Tires (285/40 rear, 255/45 front) FR500S Mufflers

October 7th, 2007, 12:54 PM	#8
leebunnyz MM Fanatic Join Date: Feb 2007 Location: Vineland, NJ Posts: 3,550 iTrader: 0 reviews	+2 AC is still freezing __________________ Jesus Christ is #1 "The Founder Of Crews"

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