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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 11-04-2012, 10:51 AM   #21
777eThOd*
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If they say it, it must be so!!

I've also seen other PP sellers who post hp graphs where the increase in hp up at high rpm's is greater than 5 hp.

I don't believer either.
And I'd challenge anyone who did gain 5 hp on the dyno to AB and detect the difference in seat of the pants tests.
Yeah, like I said I just want them cause there red, if I gain 5 hp, I'll be the happiest man lol. Well now I know I'll be the first to test these out and can tell you guys how it goes..
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Old 11-04-2012, 11:16 AM   #22
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Have them. You will see zero gains in power, let alone 5HP. Would not buy again.
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Old 11-04-2012, 11:28 AM   #23
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Yeah, like I said I just want them cause there red, if I gain 5 hp, I'll be the happiest man lol. Well now I know I'll be the first to test these out and can tell you guys how it goes..
Do like 10 dyno runs with and without. Otherwise we won't believe any power gains.
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Old 11-04-2012, 11:43 AM   #24
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Yeah, like I said I just want them cause there red, if I gain 5 hp, I'll be the happiest man lol. Well now I know I'll be the first to test these out and can tell you guys how it goes..
What gets me is they charge premium prices for this kit and highlight that they DON'T include a drive belt! How cheap can you get?
And let us know if they deem to tell you the correct model belt to use?

The UUC included a belt so you wouldn't have to search for the correct length.

Last edited by Stinger9; 11-04-2012 at 02:14 PM.
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Old 11-04-2012, 11:52 AM   #25
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Sweet signature dude. car looks awesome! @777eThOd*
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Old 11-04-2012, 01:11 PM   #26
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Sweet signature dude. car looks awesome! @777eThOd*
Thanks mate, and guys idk but I want them cause there red!! Lol, I could care less really about the power..
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Old 11-04-2012, 01:13 PM   #27
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Here's a thread on the brands at least and some discussion on them and if they do anything

http://forum.e46fanatics.com/showthr...296&highlight=
OP as you can see in the thread linked I answer a lot of questions about these. I had them for years on my non-M and also have them on my M3.

I think the best thing to say is you'll notice the steering feel a bit firmer which is preferred by many. But on the M52TU/M54 don't expect to feel much of anything. You may feel something slight in mid-high rpm range.
So for the street just buy the cheapest 2 pulley kit with belt.
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Old 11-04-2012, 01:37 PM   #28
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Made 2whp (it would have been more like 5whp) but there are better ways to spend money...like donating it to me (serious)
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Old 11-04-2012, 02:15 PM   #29
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How much do you need?
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Old 11-04-2012, 02:21 PM   #30
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As much as you're willing to donate. This car won't mod itself (unfortunately.)
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Old 11-11-2012, 10:37 AM   #31
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Ok so I got the pulley on yesterday and they work great, I can def. feel more pull at higher RPM's, bought a 1.5in longer belt and the pulleys helped alot..
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Old 11-11-2012, 10:47 AM   #32
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Pulleys look fantastic!
I do dig machined metal, especially if anodized.

Is your car faster when you've just washed it too?

Last edited by Stinger9; 11-11-2012 at 09:21 PM.
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Old 11-11-2012, 11:03 AM   #33
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Not worth it unless you need new pullies AND belts
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Old 11-11-2012, 09:08 PM   #34
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Pulleys look fantastic!

Is your car faster when you've just washed it too?
lol.. thanks and sometime lol. I found that when i bought it the dealership had left my waterpump loose from 2 bottom bolts that was just hanging.. the car is doing great tho, finally fixed my main problems tho..
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Old 11-11-2012, 09:24 PM   #35
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I found that when i bought it the dealership had left my waterpump loose from 2 bottom bolts that was just hanging..
Exactly why we like to do our own work. Triple check because we care. Dealer throws the part on and rolls the car out.
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Old 11-11-2012, 09:26 PM   #36
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Exactly why we like to do our own work. Triple check because we care. Dealer throws the part on and rolls the car out.
No dude, I've been driving around like that since I bought it from the dealer(1 year and a half)!! thats messed up, I found out when I was putting it all in.
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Old 11-12-2012, 06:59 AM   #37
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Exactly why we like to do our own work. Triple check because we care. Dealer throws the part on and rolls the car out.
This always makes me nervous. It sucks that most mechanics don't seem to take pride in doing a quality job. Most just do whatever turns the CEL off or makes the noise go away in the easiest, most shortcut way possible.
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Old 11-12-2012, 08:17 AM   #38
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I have a Zhp and installed a used set of UUC pulleys then tracked my Zhp. I have been track driving for 20+ yrs, over 12 different BMW track cars so I can feel when a car performs better on the track. The pulleys are fractionally more powerful on track use. On the street, you won't tell any difference unless you rev at 5k rpm all the time. So unless you got a good deal on used pulley set like I did, its not worth new full price unless you track your car.
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Old 11-12-2012, 09:07 AM   #39
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Then again could be difference in atmospheric pressure from one day to another that will also marginally affect the hp output.
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Old 11-12-2012, 09:09 AM   #40
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Then again could be difference in atmospheric pressure from one day to another that will also marginally affect the hp output.
This probably affects our car more perceptably than pulleys will. On a cold winter day at low altitude your car will make great power and be very efficient. At the same altitude on a hot and humid day, your car is going to be weaker. The air is less dense and water vapor is taking up some space as well. My Jeep used to be noticably better performing in the winter. I could drive up some hills on the highway in top gear at 80 mph in winter, but in summer it would have to downshift.

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