UDPs to stock...Who has done it?

~C~ · July 7th, 2008, 10:11 AM

Question above....answers below?

acmillr · July 7th, 2008, 10:33 AM

Are you asking if anyone has replaced the UDP's with stock components?

RC00GT · July 7th, 2008, 10:54 AM

i dont see why that would be so hard... i no my buddy's GT with a VQ-2 he put stock back on because the Steeda was robbing power and lowering his PSI

Eagle2000GT · July 7th, 2008, 11:42 AM

Since the previous owner installed the UDPs I didn't have the stock pulleys to put back on. But I went back to a stock crank pulley and an electric water pump (same diameter as a stock water pump pulley) when I had the Procharger installed.

~C~ · July 7th, 2008, 12:11 PM

Yes asking who has done it. I want to make sure I have the right pulleys going on the right places. I will try to post up pics of the stocks I have so some one could identify them correctly. I am pretty sure the small pulley is the alt pulley, the large pulley is the crankshaft pulley, and the one that looks like a hollowed out shell is the water pump. I dont remember since I installed them with a friend back in 2001.

bottlefed02gt · July 7th, 2008, 02:29 PM

Small is the alt. pulley, heavy one is crank, hollowed out one is water pump. Reinstall is easy. Just remember to get a new crank bolt.

~C~ · July 7th, 2008, 03:52 PM

thats what I thought. Any other tips before I tear it apart?

Mach Boy · July 7th, 2008, 05:32 PM

It's pretty self explanitory. Just make sure the belt is running smoothly when you get everything back on.

~C~ · July 7th, 2008, 07:59 PM

So i took another look today and damn there is a ton of room in the front! I now remember we only had to remove or drop the fan a bit to get a little more leverage on the UDP install. With the fan and radiator out the way, it should go by pretty quick. Thanks.

RC00GT · July 8th, 2008, 04:26 PM

why did you have to remove the fan? usualy there is enough clearence without removing anything. just remember after you install the belt to crank the motor over a couple times, but dont start it, just so you have a chance to see the belt in motion to make sure everything is smooth. also make sure you follow the torque requirments and steps for the crank pulley, otherwise you might get codes and other problems.

acmillr · July 8th, 2008, 04:27 PM

Originally Posted by RC00GT

why did you have to remove the fan? usualy there is enough clearence without removing anything. just remember after you install the belt to crank the motor over a couple times, but dont start it, just so you have a chance to see the belt in motion to make sure everything is smooth. also make sure you follow the torque requirments and steps for the crank pulley, otherwise you might get codes and other problems.

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RC00GT · July 9th, 2008, 08:12 AM

Well of course if your crank pulley comes loose your gonna have problems, and from what was explained to me if your crank pulley becomes too lose and wobbles the computer will throw a code. and if that pulley falls off your F***ed if ur stuck on the side of the road

~C~ · July 9th, 2008, 08:52 AM

I dont think I removed the fan, but the bracket holding up the coolant tank I think had to be moved. i dont know if we moved the fan slightly for added clearance or not....its been a while.

Hawaiianbro · July 9th, 2008, 10:46 AM

Originally Posted by RC00GT

Well of course if your crank pulley comes loose your gonna have problems, and from what was explained to me if your crank pulley becomes too lose and wobbles the computer will throw a code. and if that pulley falls off your F***ed if ur stuck on the side of the road

o damn so theres no fail safe then? I remember seeing a video and said to crank but dont start a couple times cause the tensioner has to tighten up right?

dude496 · July 9th, 2008, 12:06 PM

Originally Posted by Hawaiianbro

o damn so theres no fail safe then? I remember seeing a video and said to crank but dont start a couple times cause the tensioner has to tighten up right?

huh what? Its an automatic tensioner, it will tighten itself right away. Cranking the engine over a little bit is just to make sure the belt is lining up properly. Pretty easy to miss a rib here and there if your not paying attention.

Yes the crank pulley could come off i guess if the bolt came loose...pretty damn hard for it to come lose though...torque that thing down hard and never look back.

RC00GT · July 9th, 2008, 03:49 PM

no, i wouldnt crank n not look back....

How To Install Underdrive Pulleys | AutoHow.TV

Thats all you need.

P.S., thats stolen from American Muscle just so you know. it is also posted on there website

July 7th, 2008, 10:11 AM	#1
~C~ Enthusiast Y2K YellowJacket GT ~TBD~ Join Date: Jun 2008 Location: MD Posts: 575	UDPs to stock...Who has done it? Question above....answers below? __________________ BLOWN Bumblebeast! 370 rwhp and 381 ft lbs MILITARY CREW LT August Birthday Club Co-Founder "Like the blind man says......We shall see...."

July 7th, 2008, 10:33 AM	#2
acmillr MM's Mad Scientist 2003 GT Street Fast 16.9@76MPH Join Date: Jul 2006 Location: Tampa, FL Posts: 4,041	Are you asking if anyone has replaced the UDP's with stock components? __________________

July 7th, 2008, 10:54 AM	#3
RC00GT Regular 2000 Ford Mustang GT 14.41 Join Date: Jun 2008 Location: Richmond, VA Posts: 239	i dont see why that would be so hard... i no my buddy's GT with a VQ-2 he put stock back on because the Steeda was robbing power and lowering his PSI __________________ K&N intake, Diablosport predator, Steeda Underdrive pulley set, Steeda Tri-ax, SLP Catted X-pipe, Flowmaster 50 series DeltaFlow's, Sumitomo HTRZ+ 255\45\17's, Pro Products Plenum\70mm TB kit. now that i can drive, hope to break my crappy 14.4

July 7th, 2008, 11:42 AM	#4
Eagle2000GT Enthusiast 2000 Mustang GT Join Date: Aug 2007 Location: Shelbyville, Indiana Posts: 623	Since the previous owner installed the UDPs I didn't have the stock pulleys to put back on. But I went back to a stock crank pulley and an electric water pump (same diameter as a stock water pump pulley) when I had the Procharger installed. __________________ latest tune: 370 rwhp/377 rwtq Garage: http://www.moddedmustangs.com/forums...-member-11329/ Previously Owned: 1966 Coronet 500, 426 ci est. 290-300 rwhp 1969 Camaro RS/SS, 350 ci est. 210-220 rwhp Today is the real muscle car era.

July 7th, 2008, 12:11 PM	#5
~C~ Enthusiast Y2K YellowJacket GT ~TBD~ Join Date: Jun 2008 Location: MD Posts: 575	Yes asking who has done it. I want to make sure I have the right pulleys going on the right places. I will try to post up pics of the stocks I have so some one could identify them correctly. I am pretty sure the small pulley is the alt pulley, the large pulley is the crankshaft pulley, and the one that looks like a hollowed out shell is the water pump. I dont remember since I installed them with a friend back in 2001. __________________ BLOWN Bumblebeast! 370 rwhp and 381 ft lbs MILITARY CREW LT August Birthday Club Co-Founder "Like the blind man says......We shall see...."

July 7th, 2008, 02:29 PM	#6
bottlefed02gt Regular Join Date: Feb 2008 Posts: 54	Small is the alt. pulley, heavy one is crank, hollowed out one is water pump. Reinstall is easy. Just remember to get a new crank bolt. __________________ Intercooled Procharger, 3.33" Pulley, Boost Pipe, Magnaflow catback exhaust, UPR offroad x-pipe. SCT tuned by TonyG @ HP Perfomance. 405.91 rwhp 409.79 rwtq www.cardomain.com/id/what_a_wang

July 7th, 2008, 03:52 PM	#7
~C~ Enthusiast Y2K YellowJacket GT ~TBD~ Join Date: Jun 2008 Location: MD Posts: 575	thats what I thought. Any other tips before I tear it apart? __________________ BLOWN Bumblebeast! 370 rwhp and 381 ft lbs MILITARY CREW LT August Birthday Club Co-Founder "Like the blind man says......We shall see...."

July 7th, 2008, 05:32 PM	#8
Mach Boy Hardcore Enthusiast 2004 Mustang Mach 1 13.81@104.11 Join Date: Sep 2007 Location: Terre Haute, IN / St. Louis, MO Posts: 1,127	It's pretty self explanitory. Just make sure the belt is running smoothly when you get everything back on. __________________ 302rwhp 321tq

July 7th, 2008, 07:59 PM	#9
~C~ Enthusiast Y2K YellowJacket GT ~TBD~ Join Date: Jun 2008 Location: MD Posts: 575	So i took another look today and damn there is a ton of room in the front! I now remember we only had to remove or drop the fan a bit to get a little more leverage on the UDP install. With the fan and radiator out the way, it should go by pretty quick. Thanks. __________________ BLOWN Bumblebeast! 370 rwhp and 381 ft lbs MILITARY CREW LT August Birthday Club Co-Founder "Like the blind man says......We shall see...."

July 8th, 2008, 04:26 PM	#10
RC00GT Regular 2000 Ford Mustang GT 14.41 Join Date: Jun 2008 Location: Richmond, VA Posts: 239	why did you have to remove the fan? usualy there is enough clearence without removing anything. just remember after you install the belt to crank the motor over a couple times, but dont start it, just so you have a chance to see the belt in motion to make sure everything is smooth. also make sure you follow the torque requirments and steps for the crank pulley, otherwise you might get codes and other problems. __________________ K&N intake, Diablosport predator, Steeda Underdrive pulley set, Steeda Tri-ax, SLP Catted X-pipe, Flowmaster 50 series DeltaFlow's, Sumitomo HTRZ+ 255\45\17's, Pro Products Plenum\70mm TB kit. now that i can drive, hope to break my crappy 14.4

July 9th, 2008, 08:12 AM	#12
RC00GT Regular 2000 Ford Mustang GT 14.41 Join Date: Jun 2008 Location: Richmond, VA Posts: 239	Well of course if your crank pulley comes loose your gonna have problems, and from what was explained to me if your crank pulley becomes too lose and wobbles the computer will throw a code. and if that pulley falls off your F***ed if ur stuck on the side of the road __________________ K&N intake, Diablosport predator, Steeda Underdrive pulley set, Steeda Tri-ax, SLP Catted X-pipe, Flowmaster 50 series DeltaFlow's, Sumitomo HTRZ+ 255\45\17's, Pro Products Plenum\70mm TB kit. now that i can drive, hope to break my crappy 14.4

July 9th, 2008, 08:52 AM	#13
~C~ Enthusiast Y2K YellowJacket GT ~TBD~ Join Date: Jun 2008 Location: MD Posts: 575	I dont think I removed the fan, but the bracket holding up the coolant tank I think had to be moved. i dont know if we moved the fan slightly for added clearance or not....its been a while. __________________ BLOWN Bumblebeast! 370 rwhp and 381 ft lbs MILITARY CREW LT August Birthday Club Co-Founder "Like the blind man says......We shall see...."

July 9th, 2008, 03:49 PM	#16
RC00GT Regular 2000 Ford Mustang GT 14.41 Join Date: Jun 2008 Location: Richmond, VA Posts: 239	no, i wouldnt crank n not look back.... How To Install Underdrive Pulleys \| AutoHow.TV Thats all you need. P.S., thats stolen from American Muscle just so you know. it is also posted on there website __________________ K&N intake, Diablosport predator, Steeda Underdrive pulley set, Steeda Tri-ax, SLP Catted X-pipe, Flowmaster 50 series DeltaFlow's, Sumitomo HTRZ+ 255\45\17's, Pro Products Plenum\70mm TB kit. now that i can drive, hope to break my crappy 14.4

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