Power pulleys safe?

sickM3413 · 07-31-2011, 12:10 PM

Interested in putting the powerpulley system on my 08 m3 e90. On dinnans website they dont recommend them because they could cause several problems.... Has anyone have any knowledge on this?

Dave07997S · 07-31-2011, 12:14 PM

Quote:

Originally Posted by sickM3413

Interested in putting the powerpulley system on my 08 m3 e90. On dinnans website they dont recommend them because they could cause several problems.... Has anyone have any knowledge on this?

Dinan sells a pulley system...

http://www.dinancars.com/shop/D560-0...ly.aspx#page=1

You can get it less from Evosport or a few other vendors.

Dave

sickM3413 · 07-31-2011, 12:23 PM

Thanks guys but what im trying to figure out is if these pulleys cause problems down the road? Dinnan claims on their website that its not worth doing .... Does anyone have any experience with the pulleys? Is the 10hp worth it? Im leaning to stay away from them.

1MOREMOD · 07-31-2011, 12:27 PM

i contemplated it and decided against. i have used pulleys on other vehicles and have had various charging issues after the install.

Dave07997S · 07-31-2011, 01:17 PM

The pulleys are actually a very safe mod, they are very conservative and you will have no problem with cooling or charging. Some companies offer a race pulley and these may cause problems with cars with aftermarket audio equipment.

BTW, it has been shown that on the track underdrive pullies in some cases actually can help cooling. I remember Brad @ Evosport wrote up a piece about this. Don't have it off the top though.

Dave

Dave07997S · 07-31-2011, 01:18 PM

Quote:

Originally Posted by sickM3413

Thanks guys but what im trying to figure out is if these pulleys cause problems down the road? Dinnan claims on their website that its not worth doing .... Does anyone have any experience with the pulleys? Is the 10hp worth it? Im leaning to stay away from them.

Where on their website they say they aren't worth doing? Seems strange to say this then offer it on their website.

Dave

sickM3413 · 07-31-2011, 01:34 PM

On the home page click dinan university and scroll down until you see "the dangers of power pulleys and understanding harmonic damper" its written by steve dinnan himself. Pretty interesting. Definetly makes u think before modifying shit

ScorpionT · 07-31-2011, 02:56 PM

I personally like to find power in other areas. Power pulleys will reduce the speed of the water pump, which can increase coolant temps rather than lower them. On the track is where 10whp makes a big difference, and with the increased engine temps, I definitely wouldnt recommend the pulley. Instead of looking for 10whp on the track, I would be trying to drop weight.

Steve Dinan was talking about removing the harmonic damper, which is really where the primary danger is incurred.

Side note, on Evosports website they refered to the pulleys as "dampened" which is the incorrect term. The correct term is "damped", and Im a little disappointed that a professional shop doesnt know the difference.

sickM3413 · 07-31-2011, 03:40 PM

Thanks scorpiont. I agree with u. Its too risky for something that im probably never going to use for its intended purposes anyway. Just a waste of money. And it could potentially cost me more money down the road. Im just gonna stick with the afe intake and prolly gintani exhaust and call it a day kid

CBS · 07-31-2011, 04:09 PM

OP: I originally had a Rogue Pulley on my '08 E90 M3 and drove for 15 thousand miles, never a problem.

Around town, I really didn't notice the 8-10 HP.

I tracked my car and the total effect of Pulley, MS Air Filter and Exhaust was then evident VS. Stock M3's but only at high RPM.

Good Luck!

tom @ eas · 08-01-2011, 11:56 AM

Quote:

Originally Posted by Dave07997S

Where on their website they say they aren't worth doing? Seems strange to say this then offer it on their website.

Dave

Quote:

Originally Posted by sickM3413

On the home page click dinan university and scroll down until you see "the dangers of power pulleys and understanding harmonic damper" its written by steve dinnan himself. Pretty interesting. Definetly makes u think before modifying shit

This is a very old article (approximately 10 years ago), FYI the stock dampener is not touched on the S65. Dinan offers a pulley for the V8 M3 and M5 also.

There is nothing wrong with pulleys and they have proven considerable gains across all parts of the powerband - most manufacturers remain within safe limits for both the track and street.

sickM3413 · 08-01-2011, 12:11 PM

Sweet

persian54 · 08-01-2011, 02:22 PM

I've had my MS pulley since around 2k miles, about 7400 now, no issues

TBH I don't feel much of a power pump as this car gains power in a linear way but i"m happy with it :P

KGB7 · 08-01-2011, 03:13 PM

Quote:

Originally Posted by Dave07997S

Where on their website they say they aren't worth doing? Seems strange to say this then offer it on their website.

Dave

Read the article again. Then gain, because there is nothing about BMW e9x in that article.

The article talks about as to why you shouldn't replace Harmonic Dampers.

Plus, Dinan makes some of the best if not THE best aftermarket parts.

tom @ eas · 08-04-2011, 12:40 AM

Here's a thread we just posted today showing results of the MS Stage 2 Intake/UDPs and Akrapovic exhaust:

▀▄ eas | Macht Schnell UDP/Stage 2 Intake & Akrapovic Dyno Findings
http://www.m3post.com/forums/showthread.php?t=567651

Definitely worth a read, lots of info in there.

SignatureJames · 08-04-2011, 01:05 AM

I have the MS pulley set. From what I heard, their version doenst effect the ac cooling Down time as much as the other brands. My car is my DD and I do want performance but not hardcore enough to let my ac cooling suffer for it. That is why I chose the MS ones

dhoggm3 · 08-07-2011, 07:31 AM

The pulleys for our cars add a little torque and HP and they are safe. The downside is that if you drive the car only occasionally and only on short drives, you will need to buy a trickle charger. Also, if you ever throw a belt, it's not the stock replacement size. Not likely but possible. I keep the 2 replacement belts in my trunk, just in case. If it's your daily driver you'll be fine - no issues.

MilehighM3 · 08-07-2011, 08:49 AM

Everyone that has noticed the bit about harmonic balancer replacement is correct. That is bad for the engine. Most power pulleys back in the day, such as E36, did replace it. I've seem a lot of oil pump drive nuts eventually walk off and cars loose oil pressure due to this. I have also seen several different S65 power pulleys and they do not replace the balancer, simply the accessory drive pulleys. Some kits do have pulleys that are slightly smaller than others that can result in over heating on the track. So read up on the pulley set you choose before buying. There is some good power to be gained, especially for the price. Good bang for the buck...

Green-Eggs · 08-07-2011, 12:22 PM

They work well. Great bang for the buck. Problems were with 4cyls. Active Autowerke wouldn't offer it if there was problems, they stand behind everything they manufacture.

sickM3413 · 08-07-2011, 04:09 PM

Went with turner motorsports. Their an hour from me

MJM · 08-25-2011, 08:22 PM

Quote:

Went with turner motorsports. Their an hour from me

Did you have them install it? If so, how much was the install? What is your experience thus far?

GIdriver · 11-25-2011, 10:10 AM

Quote:

Originally Posted by sickM3413

Interested in putting the powerpulley system on my 08 m3 e90. On dinnans website they dont recommend them because they could cause several problems.... Has anyone have any knowledge on this?

I was considering a dinan pulley kit but after reading Steve Dinan's article I'm having second thoughts.

07-31-2011, 12:10 PM	#1
sickM3413 New Member 5 Rep 22 Posts Drives: 08 m3 e90 06 x5 4.8 Join Date: Jul 2011 Location: west springfield,ma iTrader: (0)	Power pulleys safe? Interested in putting the powerpulley system on my 08 m3 e90. On dinnans website they dont recommend them because they could cause several problems.... Has anyone have any knowledge on this?
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07-31-2011, 12:23 PM	#3
sickM3413 New Member 5 Rep 22 Posts Drives: 08 m3 e90 06 x5 4.8 Join Date: Jul 2011 Location: west springfield,ma iTrader: (0)	Power pulley issues Thanks guys but what im trying to figure out is if these pulleys cause problems down the road? Dinnan claims on their website that its not worth doing .... Does anyone have any experience with the pulleys? Is the 10hp worth it? Im leaning to stay away from them.
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07-31-2011, 12:27 PM	#4
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	i contemplated it and decided against. i have used pulleys on other vehicles and have had various charging issues after the install. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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07-31-2011, 01:17 PM	#5
Dave07997S Brigadier General 721 Rep 3,964 Posts Drives: 2020 Ford Mustang GT Join Date: May 2009 Location: El Segundo, CA iTrader: (1)	The pulleys are actually a very safe mod, they are very conservative and you will have no problem with cooling or charging. Some companies offer a race pulley and these may cause problems with cars with aftermarket audio equipment. BTW, it has been shown that on the track underdrive pullies in some cases actually can help cooling. I remember Brad @ Evosport wrote up a piece about this. Don't have it off the top though. Dave __________________ 2020 Ford Mustang GT 6MT PP1 444rwhp (Sold)2013 M3 Coupe-MR/BLK ZCP, 2011 M3 Coupe-MR/Blk 2007 Porsche 997C2S Speed Yellow/Blk sport seats 2004 BMW M3 Imola/Blk
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07-31-2011, 01:34 PM	#7
sickM3413 New Member 5 Rep 22 Posts Drives: 08 m3 e90 06 x5 4.8 Join Date: Jul 2011 Location: west springfield,ma iTrader: (0)	Where on dinnans website? On the home page click dinan university and scroll down until you see "the dangers of power pulleys and understanding harmonic damper" its written by steve dinnan himself. Pretty interesting. Definetly makes u think before modifying shit
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07-31-2011, 02:56 PM	#8
ScorpionT Private First Class 6 Rep 101 Posts Drives: 335i, SL65 Join Date: Apr 2011 Location: Arctic Circle iTrader: (0)	I personally like to find power in other areas. Power pulleys will reduce the speed of the water pump, which can increase coolant temps rather than lower them. On the track is where 10whp makes a big difference, and with the increased engine temps, I definitely wouldnt recommend the pulley. Instead of looking for 10whp on the track, I would be trying to drop weight. Steve Dinan was talking about removing the harmonic damper, which is really where the primary danger is incurred. Side note, on Evosports website they refered to the pulleys as "dampened" which is the incorrect term. The correct term is "damped", and Im a little disappointed that a professional shop doesnt know the difference.
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07-31-2011, 03:40 PM	#9
sickM3413 New Member 5 Rep 22 Posts Drives: 08 m3 e90 06 x5 4.8 Join Date: Jul 2011 Location: west springfield,ma iTrader: (0)	Thanks scorpiont. I agree with u. Its too risky for something that im probably never going to use for its intended purposes anyway. Just a waste of money. And it could potentially cost me more money down the road. Im just gonna stick with the afe intake and prolly gintani exhaust and call it a day kid
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07-31-2011, 04:09 PM	#10
CBS Major 87 Rep 1,253 Posts Drives: F10535, E90M3, E30M3, E28M5 Join Date: Jan 2011 Location: Charlotte, NC iTrader: (0) Garage List 2017 Alpina B6 GC [0.00] 2014 535xi M Sport [0.00] 2014 X3 3.5 M Sport [0.00] 2011 M3 E90 [9.74] 2007 Z4 M Coupe [7.00] 1990 M3 [9.50] 1988 M5 [10.00]	OP: I originally had a Rogue Pulley on my '08 E90 M3 and drove for 15 thousand miles, never a problem. Around town, I really didn't notice the 8-10 HP. I tracked my car and the total effect of Pulley, MS Air Filter and Exhaust was then evident VS. Stock M3's but only at high RPM. Good Luck! __________________ ESS VT-1 550 \| M24 Oil Cooler \| Fall Line Half Cage \| RaceTech 4009W \| 6 pt Harness \| Lifeline Zero 360 Fire Suppression \| Rear Seat Delete \| Motion Control DA Dampers w/remote reservoirs \| 900/650 Hyperco Springs \| RD Sport Sway Bars \| Brembo 380 BBK \| GC Camber Plates \| Hoosier R7 \| Eisenmann Sport \| Stack Gauges \| Painted Challenge Front Lip \| Painted ZCP Rear Spoiler \| Xpel Ultimate Film \| LuxAngelEyes
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08-01-2011, 12:11 PM	#12
sickM3413 New Member 5 Rep 22 Posts Drives: 08 m3 e90 06 x5 4.8 Join Date: Jul 2011 Location: west springfield,ma iTrader: (0)	Sweet
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08-01-2011, 02:22 PM	#13
persian54 Lieutenant General 923 Rep 15,818 Posts Drives: M760/G83M4 Join Date: Jun 2009 Location: The Valley, SoCal iTrader: (298)	I've had my MS pulley since around 2k miles, about 7400 now, no issues TBH I don't feel much of a power pump as this car gains power in a linear way but i"m happy with it :P __________________ From E93 335i to E89 Z4 to E93 M3/E89 Z4 to E350/SL550
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08-04-2011, 12:40 AM	#15
tom @ eas BimmerPost Supporting Vendor 8175 Rep 18,821 Posts Drives: BMW Join Date: Nov 2005 Location: Anaheim, CA iTrader: (19) Garage List 2018 BMW i3s [5.00] 2010 BMW M3 [6.50] 2015 BMW M4 [6.20]	Here's a thread we just posted today showing results of the MS Stage 2 Intake/UDPs and Akrapovic exhaust: ▀▄ eas \| Macht Schnell UDP/Stage 2 Intake & Akrapovic Dyno Findings http://www.m3post.com/forums/showthread.php?t=567651 Definitely worth a read, lots of info in there. __________________ Tom G. \| european auto source (eas) email: tom@europeanautosource.com · web: https://europeanautosource.com· tel 866.669.0705 · ca: 714.369.8524 x22 GET DAILY UPDATES ON OUR BLOG · FACEBOOK · YOUTUBE · FLICKR · INSTAGRAM
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08-04-2011, 01:05 AM	#16
SignatureJames Lieutenant Colonel 233 Rep 1,522 Posts Drives: 2023 BMW M5 Competition Join Date: Jun 2010 Location: Irvine, CA iTrader: (15)	I have the MS pulley set. From what I heard, their version doenst effect the ac cooling Down time as much as the other brands. My car is my DD and I do want performance but not hardcore enough to let my ac cooling suffer for it. That is why I chose the MS ones __________________ "if you ain't first, you're last!" 1992 Acura NSX / 1998 Acura Integra Type R / 2023 BMW M5 Competition / 2019 Porsche Cayenne S / 2023 Porsche Taycan GTS Sport Turismo
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08-07-2011, 07:31 AM	#17
dhoggm3 Major 269 Rep 1,282 Posts Drives: 850i C, Gated R8 5.2, E63 Join Date: Jul 2007 Location: Central PA iTrader: (1)	The pulleys for our cars add a little torque and HP and they are safe. The downside is that if you drive the car only occasionally and only on short drives, you will need to buy a trickle charger. Also, if you ever throw a belt, it's not the stock replacement size. Not likely but possible. I keep the 2 replacement belts in my trunk, just in case. If it's your daily driver you'll be fine - no issues. __________________ M850i Vert with RaceChip E46 M3, Euro Headers, Rasp Pipe, Kassel Tune Alpina B8, zero performance mods
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08-07-2011, 08:49 AM	#18
MilehighM3 Brigadier General 915 Rep 3,456 Posts Drives: Harrop E90 M3 Join Date: May 2011 Location: Colorado Springs iTrader: (14) Garage List 2009 E90 M3 [6.50]	Everyone that has noticed the bit about harmonic balancer replacement is correct. That is bad for the engine. Most power pulleys back in the day, such as E36, did replace it. I've seem a lot of oil pump drive nuts eventually walk off and cars loose oil pressure due to this. I have also seen several different S65 power pulleys and they do not replace the balancer, simply the accessory drive pulleys. Some kits do have pulleys that are slightly smaller than others that can result in over heating on the track. So read up on the pulley set you choose before buying. There is some good power to be gained, especially for the price. Good bang for the buck...
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08-07-2011, 12:22 PM	#19
Green-Eggs BimmerPost Supporting Vendor 1439 Rep 1,614 Posts Drives: BMW Join Date: Jul 2007 Location: Los Angeles iTrader: (3)	They work well. Great bang for the buck. Problems were with 4cyls. Active Autowerke wouldn't offer it if there was problems, they stand behind everything they manufacture.
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08-07-2011, 04:09 PM	#20
sickM3413 New Member 5 Rep 22 Posts Drives: 08 m3 e90 06 x5 4.8 Join Date: Jul 2011 Location: west springfield,ma iTrader: (0)	Went with turner motorsports. Their an hour from me
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