I have had my UDP for almost 2 years now and always had a minimum of 500 watts going in the back on 12s. Now with my tv, dvd, psx, xbox, camera, etc, touchpad computer, blah blah I STILL have not ever had an issue with my UDP running not enough volts to the car. I do not personally think it is a concern for us, guys. Just thought I would share, as I seen alot of UDP questions lately concerning idle and timing. The only issues I have ever had "electrical" wise are my cheap ass indiglos flickering on and off or not at all, and the squeaky belt in the mornings when it is cold. A mechanic also told me my tensioner bearings were shot, and the cause was the UDP, but hey I've been told otherwise about that situation by many other people. So do what you will, but I still highly recommend the UDP. Before anyone asks, I have the Unorthodox Racing 30% underdrive pulley as my UDP. thanks :thumbsup

Yeah I have had my AFX UDP for about 6 months now and have had no issues other than the squeky belt on a cold morning. I have been running 900+ Watts to my system.

Chad

myke, unorthodox only makes a 20% underdrive, and i do agree with you that with the unorthodox pulley does not cause electrical issues, i have a 1250 watt system and i have not had issues with the unorthodox pulley, however, i previously had an afx pulley and that pulley will not support the system. the afx is a 30% underdrive. i noticed while comparing the 2 that the PS/AC part of the 2 pulleys is almost the same diameter, while tha Alternator part is larger on the unorthodox. I believe that the afx was made with more respect for power gains than making the car run correctly. just FYI When i had the AFX and a new alternator, my stereo turned up 1/4 and my headlights on. the voltage would drop to 10.9-11.2, now that was plain shitty, so i bought the unorthodox, which i feel is far superior in construction to the afx and that took care of all my problems. my voltage only drops lower than 12 volts when every accessory in the car is on.
Lates
james

>myke, unorthodox only makes a 20% underdrive, and i do agree
>with you that with the unorthodox pulley does not cause
>electrical issues, i have a 1250 watt system and i have not
>had issues with the unorthodox pulley, however, i previously
>had an afx pulley and that pulley will not support the system.
>the afx is a 30% underdrive. i noticed while comparing the 2
>that the PS/AC part of the 2 pulleys is almost the same
>diameter, while tha Alternator part is larger on the
>unorthodox. I believe that the afx was made with more respect
>for power gains than making the car run correctly. just FYI
>When i had the AFX and a new alternator, my stereo turned up
>1/4 and my headlights on. the voltage would drop to 10.9-11.2,
>now that was plain shitty, so i bought the unorthodox, which i
>feel is far superior in construction to the afx and that took
>care of all my problems. my voltage only drops lower than 12
>volts when every accessory in the car is on.
>Lates
>james



I have DO a 30% UDP from Unorthodox Racing. They made a later model one.

My stereo is part of my pride and joy of the car. With my 3 amps I run 1260 watts and no problems. The one thing I haven't bothered getting was a cap (which I really need) 'cause at idle it can sometimes shutdown the car if I'm blasting it after a good sprint

I think generally the UDP does not cause an electrical problem. But if you have a electrical problem to begin with it will amplify the problem.

>I think generally the UDP does not cause an electrical
>problem. But if you have a electrical problem to begin with
>it will amplify the problem.


Exactly.

Yes Unorthodox originally put out 20% underdrive then switched to 30% after AFX made theirs.

I've had the UDP with around 500 watts to 2 12" in the back and had no problems. Unless you have an obscene underdrive the alternator will create resistance to create the proper amount of current.

97 Eclipse RS (in winter slumber for H.G. repair & other projects)
Injen CAI, 55mm TB, P&P Intake, Crower Stage 2 Cams, Hooker Header, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC

Claim victory in your heart, and the universe will follow.

So wher would I get said pulley for under $259 (MachV's price). Looking for the Unorthadox one... Danks.

I paid 240 for mine in Nov 2001 from ARD here in houston. call em up

713-984-9140 n shit

afx is ~160 from pttuning.com

1000watts, and my lights dim slightly w/the pulley

really want the unorthidox one because of the feel of it, when you hold it. I can just buy james AFX one....

Damn, my lights already dim and I don't got the pulley yet. Hahahah....wonder if the car would die, or the system would cut out if I got an UDP.

does anyone have a website where i can get an unorthodox udp 30%..they sound better than the afx when using a system..

i got mine for 175 at stillen.
lates
james