Underdrive=undercharge?
 

Do those of you who have underdrive pulleys notice things like headlights dimming when at an idle, and brightening up when your revs come up? Also, does the A/C work as well with pulleys? Thanks for the info...

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'97 Cobra, K&N, Rio Red

[This message has been edited by King Snake (edited 07-17-2000).]

yep. its an inevitable consequence of underdrives. you'll also be noticing your fan coming on much more and your battery budget going way up.

No problems with mine so far. I have a 700 Watt stereo system and have no undercharging problems. Since I never ran my A/C before installing the pulleys, I'm not sure how they affect that. But, there is definitely a power loss when I kick on the A/C.

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'96 GT
5-speed,K&N air filter,Roush Cold Air kit,80mm MAF,Mac Cat-Back,Mac Pro Chamber H-Pipe, FMS 3.73's, FMS 70mm TB, Steeda Tri-ax, March U/D pulleys

T-Bone's '96 GT

Underdrive's suck on the 32 valve. Not worth the agony and litte crap, like the previously examples mentioned, i.e., lights, battery, etc.

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1996 Laser Red Cobra. 12.64@108.1 mph; 1.92 60 ft. I keep racin' it, and it keeps getting faster!(It's still a heavy beast)

I have some friends that have had good results with Steeda pulleys on DOHCs. It probably varies from brand to brand.

I was once all gung-ho about getting underdrives, but now I think I have changed my mind. It just sounds like you have to sacrifice reliability and your electrical system's ability to function properly for just a few horsepower.

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'97 Cobra, K&N, Rio Red