Steeda U/D Pulleys

BlackenedSVT · Dec 18, 2004

Im thinking of getting some STEEDA Under Drive Pulleys for my stang.
Anyone know of the gains from these on a 2002 GT (5spd)?
I've heard mixed rumors about them, like "you dont need U/D pulleys on a 99+ stang because their stock pullies are already great" yada yada yada.

Anyway, I'll get them installed professionally but i was also wondering if they produce problems with the electrical power in the car? I've also heard of people losing lighting and dimmed lights and headlights because of the pulleys. Does this happen? Will an upgraded Alternator fix this? Or is it really not a big deal?

Let me know what your exp is with STEEDA U/D Pulleys.

Calvin099 · Dec 18, 2004

I noticed a slight improvement w/ the mod. It's easy to do yourself too. Steeda has a great instructions on it..
As for the electrical, I only changed the water pump and crankshaft... Left the alt. on... No problems.

BlackenedSVT · Dec 18, 2004

whyd you change the water pump and crankshaft?

Calvin099 · Dec 18, 2004

Changed the pulleys on 'em, not the actual waterpump and crank shaft

BlackenedSVT · Dec 18, 2004

Calvin099 said:
Changed the pulleys on 'em, not the actual waterpump and crank shaft

ok but why? Did the steeda UD Pulleys rob your electrical power like i was talking about? and then did the waterpump and crank shaft pulley change fix this?

Nater · Dec 18, 2004

He may have just changed those two because they are easier. The alternator pulley, I hear, is a pain to get off. Plus the rumor is that it is not that much different in size. A good source is to read about the pulleys in the Reviews section (tab at the top of the page). Of the hundreds of others that have asked this question has received responses that they have not had any cooling or electrical issues. The only worry about electrical you may have is if you have a huge stereo system in the car. Other than that don't worry about it. I don't have them on mine, but plan to one of these days. I hear that the difference is similar to that of driving with the a/c on vs. driving with the a/c off.

DisposableHero · Dec 18, 2004

i tried to install these with my friend and his dad who is a retired machanic and we could not get the crankshaft pully off... what a pain

so i took it to a professional and they did it no problem.

As for the gains i would say the car seems a little weaker in the low rpms, but its so much easier to rev up to the powerband now. Seemed to have lowered the RPMs of freeway driving so thats where the better milage will come from i guess.

just some guy · Dec 18, 2004

ud pulleys are useless on 99+. i had them in my 98 and i felt a difference and the car made good power as it trapped 97mph with just h pipe, timing adjuster, and pulleys.

....but on my 03 i didnt feel anything or gain anything at the track. Luckily i only paid $20 for them.

nickthegenius · Dec 18, 2004

I'm not really sure what they did individually as mine were installed as everything was being bolted back together after the cam swap.

Just make sure you get a new balancer bolt as they are TTY (one time use).

flashstang04 · Dec 18, 2004

just some guy said:
ud pulleys are useless on 99+. i had them in my 98 and i felt a difference and the car made good power as it trapped 97mph with just h pipe, timing adjuster, and pulleys.

....but on my 03 i didnt feel anything or gain anything at the track. Luckily i only paid $20 for them.

Must be model specific then, cuz mine mad a lot of difference in torque and no power loss to the accessories. And I changed all three of mine!

03trubluGT · Dec 18, 2004

I had the Steedas and dyno-d 6 RWHP and 6 RWTQ gain.

Matt

Black2001GT · Dec 18, 2004

03trubluGT said:
I had the Steedas and dyno-d 6 RWHP and 6 RWTQ gain.

Matt

Great mod. Steeda Pullies are

Darkhorse845 · Dec 18, 2004

I have the Steeda pulleys and I never had
a electrical problem.They are a great mod
and all I can say is I like my Steeda U/D
pulleys!

myponyrocks · Dec 18, 2004

I have em on, 15k miles on em now, no issues. If you have the fan on full it will bog the fan but not the motor if you sit too long under 1k rpm, no big deal since in the summer I dont use A/C

madmatt · Dec 18, 2004

Wow, matt, you have convinced me, I need these. 6 hp and tq is a respectable gain for these cars and the available "cheap" parts. Thanks for the heads up.

BlackMach2 · Dec 19, 2004

I've had no problems with my Steeda underdrive pulleys either, and I'm only running the crank & water pump. Just by running these two, you'll shave off 4.5 lbs!

xseler8 · Dec 19, 2004

I had them on an 02 GT. (removed for blower install). Had them professionally installed. Nothing negative about them. NOTHING! Steeda's are the best

RickieFrat · Dec 19, 2004

Have the Steeda's UDP as well. I deff. noticed a difference and no loss in elec. power. My dry cell might have something to do with it.

Running a 2002PI motor in a 1996 GT.

StangPro · Dec 19, 2004

Steeda's are great and the instructions make the install almost a no brainer.

You'll need an impact and a pulley puller and it's pretty simple.

E-mail me for a price and I'll set you up.

Steeda U/D Pulleys

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