Underdrive pulleys

steveb24

New Member

Nov 28, 2005

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wilmington, DE

Dec 9, 2005

#1

• Dec 9, 2005

• #1

Hey im new on here, just got a 02 gt 5spd..been saving for a while for it (about 4 years)..im 16 and that is my first car and im wondering about underdrive pulleys.. from my understanding i hear the alternator pulley messes with your headlights/electronic accesories.. are they worth it and do they acctually mess anything up?

 

STNG_96

Member

Sep 15, 2004

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Marion, Illinois

Dec 9, 2005

#2

• Dec 9, 2005

• #2

There worth it, the only time that you will have issues with charging, is when your at a stop light, while your driving, no problem whatsoever. For me, the performance gains were deffinately worth it.

 

steveb24

New Member

Nov 28, 2005

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wilmington, DE

Dec 9, 2005

#3

• Dec 9, 2005

• #3

that was fast reply..so if im playin my mach 1000 system, headlights on, and all that good stuff..it wolnt be a big deal..also what if i just put the water pump and crank pulleys on there..can you do that?

 

03ghoststang

Well-Known Member

Jul 16, 2005

1,930

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57

Los Angeles, California

Dec 9, 2005

#4

• Dec 9, 2005

• #4

you shouldn't have a problem with charging that because we have a high output alternator that even with the pullies you wont see your lights dim. I have them and everything is working properly on my 91' fox body though they do i have to get a bigger output alternator...

 

M

mustanggt3685

New Member

Oct 8, 2005

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Illinois

Dec 9, 2005

#5

• Dec 9, 2005

• #5

I have em as well. The only time I notice anything is when it idles for a long period of time, the battery charge goes down a bit, but nothing major. I'd go for it.

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

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Dec 9, 2005

#6

• Dec 9, 2005

• #6

I do not recommend underdrive pullies to anyone. The cost and the risk to your car are not worth 5 horsepower in my opinion.

 

Newbie143

New Member

May 22, 2005

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Dec 9, 2005

#7

• Dec 9, 2005

• #7

I have them with NO Problems at all. I changed all 3 pulleys on my 04GT.Dont get anything besides Steeda's U/D pulleys

 

csledd

Official Ovary Punching Member

Founding Member

Aug 18, 2001

1,115

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Paducah, KY

Dec 9, 2005

#8

• Dec 9, 2005

• #8

I also have Steeda U/D pulleys and they didn't effect any of my electronics in the car. It runs just the same as before.

 

timeless2

Vi Veri Veni Versum Vicus Vici

Admin Dude

Nov 29, 1999

1,366

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the Shadow Gallery

Dec 9, 2005

#9

• Dec 9, 2005

• #9

They (UDP's) are fine unless forced induction is in your future. Be sure to keep your stockers, no matter what.

 

03ghoststang

Well-Known Member

Jul 16, 2005

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Los Angeles, California

Dec 9, 2005

#10

• Dec 9, 2005

• #10

4u2nv said:

They (UDP's) are fine unless forced induction is in your future. Be sure to keep your stockers, no matter what.

Click to expand...

yup that is a good point if your going forced inducted keep the stockers just place them somewhere for use.

 

ponysarepretty

New Member

Jul 25, 2005

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Dec 9, 2005

#11

• Dec 9, 2005

• #11

I don't it should be an issue unless you idle your car for hours on end, which is in itself an issue. I am pretty sure the Bullitt was underdriven from the factory and it has not had any recalls due to improper charging or anything of that sort.

 

M

mexis97gt

Member

Apr 4, 2005

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Davenport,IA

Dec 9, 2005

#12

• Dec 9, 2005

• #12

why cant you use UDP'S with forced induction? someone please explain im kinda retarded when it comes to forced induction

 

ponysarepretty

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Jul 25, 2005

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Dec 9, 2005

#13

• Dec 9, 2005

• #13

mexis97gt said:

why cant you use UDP'S with forced induction? someone please explain im kinda retarded when it comes to forced induction

Click to expand...

the blowers aren't made to be used with the underdrive pullies.

 

Crzyhrse

Active Member

Dec 23, 2004

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2

38

Seattle, WA

Dec 9, 2005

#14

• Dec 9, 2005

• #14

Nice job on saving your own money for your own car. UDP's are one of the cheaper mods for a nice little gain.

 

STNG_96

Member

Sep 15, 2004

120

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16

Marion, Illinois

Dec 9, 2005

#15

• Dec 9, 2005

• #15

Do not only use two pullies, and leave off the alternator pully. The aftermarket underdrives will be different sizes from your stockers, but in the end, they yeild the same distance for the belt to travel. So, you will need all three two prevent problems with them.

 

kstng50

Member

Dec 15, 2003

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South Jersey

Dec 9, 2005

#16

• Dec 9, 2005

• #16

Get them i have them with a system and have no problems

 

Maza4ever14

New Member

Apr 27, 2005

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Bay Area, CA

Dec 9, 2005

#17

• Dec 9, 2005

• #17

i have bbk udp, i had the alternator on there for a minute and had problems when starting my car. i would turn the key..and just get that tryin to wake up sound. i just swithed out the bbk alt. pulley for the old one and no problems whatsoever.