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Old 10-28-2000, 04:32 PM   #1
subymamma
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Question Unorthodox pulley

Have an Unorthodox underdrive pulley for my car. Someone said it took some power off his A/C. Anyone else have any negative comments before I get this thing installed?
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Old 10-28-2000, 04:36 PM   #2
fellfrosch7
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The power made by the engine is split into driving the wheels and driving the accessories. The Unorthodox pulley is lighter than the stock one, and so less power is given to the accessories (and, supposedly, more to the wheels). Hence, slight dimming of lights at idle may occur, and if you have an upgraded stereo (amps, subs, etc.) it may be affected as well. The AC should be OK for the most part.. the only complains about the pulley are that at idle, some of the accessories lose some of the power. I'm not sure of the exact effect of it on AC though.
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Old 10-29-2000, 10:37 AM   #3
Midwayman
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Well, I have the UDP and the upgraded stereo package from the dealer etc. Have noticed zero changed except for the good bit.
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Old 10-29-2000, 11:12 AM   #4
Faraz
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if you're going to run a after-market stereo setup don't get one ... even without a stereo the performance gains are very minimal ...Shiv, Ralispec, and i think TRi Tuning (not sure) ....all don't reccommend it either.
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Old 10-29-2000, 11:22 AM   #5
subymamma
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So, this is what it sound like in a nutshell to me: Don't expect phenomenal results, and as long as you run alot of auxiliary electrical stuff, you shouldn't have any bad stuff that you can't tolerate????
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Old 10-29-2000, 11:24 AM   #6
subymamma
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Exclamation

Bad proofreading! Let me correct myself!!
As long as you DON'T run alot auxiliary electrical stuff, you shouldn't get alot of bad stuff!
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Old 10-29-2000, 01:30 PM   #7
SubyRacer
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if u get unthorodox's UDP, as long as u dont have a stereo system that doesnt go over 400 watts RMS ur ok in that respect, with it ur engine will rev better and ull get about a 5hp gain in power.
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Old 10-29-2000, 03:37 PM   #8
Gambit
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U're basically freeing loss hp due to a/c and alternator. I think it helps alot in quick acceleration and when you blip the throttle for heel and toe shifting. Some ppl stays away from it some loves it and claim that they have no problem. My UDP is going to be 1 year old now this coming december. So far so good.
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Old 10-30-2000, 12:11 AM   #9
Midwayman
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Sort of... the gains arent alot. Basically there are better power for $$$ mods. Some people are concerned because the udp doesnt have a hamonic dampener. This *may* cause long term reliability problems. Though the other camp says that the 4flat layout is inherantly balanced and doesnt need it. Your call.
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Old 10-30-2000, 09:59 AM   #10
Dr. Spud Funk
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Yo, Subymamma! Why don't you just put that "Subaru Blue" Unorthodox Racing Pulley on you Suby, and see if it works out? If it doesn't, you can always take it off, and I'll buy it from you!
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Old 10-31-2000, 12:29 AM   #11
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I just put the UDP on my car a few weeks ago. I have a Sony 50watt cd player and a 200 watt clarion amp. I've had no problems with dimming headlights, but I haven't used the A/C since I installed it.
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Old 10-31-2000, 07:53 PM   #12
subymamma
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Hey, DaveK, try that air and let me know how it works! In Florida a car needs three things that are essential:

1. motor
2. tires
3. A/C
4. A/C

I gotta know if my A/C will be compromised!

DR. FUNK: How do You know what color my Subie pulley is? Huh????
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Old 10-31-2000, 07:56 PM   #13
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Your A/C wil be compromised for sure. But how much depends on you. For alot of us with the pulley it is not enuf to warrant the coupla hp it frees up. YMMV
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Old 10-31-2000, 08:45 PM   #14
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Yeah, if you're sitting in rush hour traffic with the revs at idle speed, you won't be getting any air conditioning with the pulley. Putting the fan on 4 & having the system in recirculation mode helps a bit, but it definitely doesn't help much on a hot summer day!
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Old 11-01-2000, 08:32 AM   #15
gumball
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I can defintely 2nd the A/C comment- I've sat in traffic w/ the U/D pulley on a sweltering DC day and boy, even w/ recirc on and the fan blasting the air is not that cool unless I gun the engine.

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Old 11-01-2000, 09:36 AM   #16
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I will chime in to I have the UDP to and yes @ idle you have pretty much no ac I you hold the RPM'S @ about 1000 you will have ac but for a long sit in trafic your foot will get tierd
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Old 11-01-2000, 10:36 AM   #17
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That's right, Subymamma! I know where you live, I know what you drive, I know what you did last summer, and, I know what color your pulley is! Mwahahahaha!

[This message has been edited by Dr. Spud Funk (edited November 01, 2000).]
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Old 11-01-2000, 10:41 AM   #18
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just to correct someone, the reason that the auxilary stuff doesn't work as well is NOT because the pulley is lighter. It is becase it is smaller in diameter, which means that everything that spins off of it, will spin slower, but it'll be easier for the engine to turn it, hence the hp gains.
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Old 11-01-2000, 11:38 AM   #19
Gambit
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Well let's shed some +ve things about the pulley. Other than less than stellar performance from the a/c, your car will response much faster. It's alot of fun to just blip the throtle and the car just goes.
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Old 11-01-2000, 07:45 PM   #20
Trebors
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Yeah...the lights dim a little at idle...but the big smile comes from the quicker revving and response....others have noted it..really like it.
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Old 11-02-2000, 06:09 AM   #21
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Anybody know of this: How about a smaller diameter pulley for the alternator? That way with the UDP the alternator wouldn't suffer as much. Plus it would be lightened. It'd prob make you all happy as to keep the A/C fully powered as well as the car stereo enthusiasts.
Anyone know who makes one? I think UR would custom make one....how about a GB??

-chrisC
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Old 11-02-2000, 09:27 AM   #22
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silver surfer
thats a good idea... and is similar to what AEM did for hondas but for different reasons. the stock drive pulley is damped... this is to keep harmonic vibrations from the shaft from destroying your engine (catastrophic failure!). the underdrive pulleys are not. the speculation has been that since we have a boxer engine, that this matters less to us. is this true? i am not sure. has their been testing to prove this? not that i have seen. so for hondas AEM instead offers replacement pulleys for the others and keeps the drive pulley stock. a good idea, but i bet the gains are less than replacing the drive pulley with one that is lighter and smaller (im just guessing, could be wrong). i wont put an undamped drive pulley on my car... i would worry too much, i have seen what harmonic vibrations can do (ever heard of the tacoma narrows bridge?) this is just me, im a bit conservative. hundreds if not thousands of people have the unorthodox pulley on their RS, and i have not heard of one failure... only time will tell, failures would not be immediate, but thousands of miles down the road.
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