4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Thinking about underdrive pulleys. Is it worth it? do you gain anything?

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Old 04-01-2007, 01:58 AM
  #21  
handyandy
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Default RE: Thinking about underdrive pulleys. Is it worth it? do you gain anything?

I mean I dont mind having them because I didn't do the work or spend the money. The previous owner had em on already. If it were my money I would probably spend it on a different mod. You really cant FEEL them. So if you get em dont expect to FEEL. But I'm sure they will yield a few extra ponies. And dont listen to people when they say it makes your A/C run ****ty and electrical messedup, because it doesn't affect the A/C or electrical noticeably at all. Mine still blows hard and cool all day. Lights still work etc... .... although I dont have an aftermarket sound system, it might affect that, MAYBE. But I have the Mach 460 and its strong as ever too.

If you have nothing else you wanna spend your money on and definitely wont get FI in the future, then why not, you'll get a couple extra horses. I dont think 200 bucks plus labor is worth it for like 3 rwhp or whatever. But hey, why not.
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Old 04-01-2007, 02:27 AM
  #22  
xxkazp3rxx
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Default RE: Thinking about underdrive pulleys. Is it worth it? do you gain anything?

It honestly frees up around 6-8 rwhp, I have seen it on a few dynos... but, I say they're only worth it, if you can get em cheap. On ebay i got my steeda udp for 70 bucks, so that was worth it. If you can do the work and get em cheap, then do em. If you get a blower in the future, just resell em... just keep your stock ones, lol.

Side note: DO NOT GET PIGGYBACK pulleys.. the BBK ones are piggybacks - get rid of them. They can destroy your motor.
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Old 04-01-2007, 02:39 AM
  #23  
runninglow12s
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Default RE: Thinking about underdrive pulleys. Is it worth it? do you gain anything?

I like the other guy..I don't know much about them but mine had them onit when I
bought the car. my air works great and no problems the electrical on mine either.
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Old 04-01-2007, 02:42 AM
  #24  
2002blkgt
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Default RE: Thinking about underdrive pulleys. Is it worth it? do you gain anything?

i got them. about 5 rwhp. adds up in the end, i guess. i went full bolt ons. now in the shop for cams! good luck!
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