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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 04-13-2010, 05:56 PM   #21
///Orient3
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You are missing something on your build list:

Multiple cases of beer.
Haha, I came home late/early Thursday after celebrating my birthday and was going to do some work with the torque wrench, but thought better of it. But yes, I have been sampling while working.
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Old 04-13-2010, 07:29 PM   #22
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I wish we could get enough interest to have an off-the-shelf option.
They make them, and I've heard AWESOME reviews on them. Though it's said you shouldn't run a underdrive pulley with a lightweight flywheel, as harmonic issues arise. Something about splitting cranks....
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Old 04-13-2010, 08:02 PM   #23
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Yep, I've been conversing back and forth with ATI, as they made Adam's. They don't have a "street" version (with A/C) and because it's larger, it would overdrive the waterpump and alternator. Don't know if I want to deal with all that... Plus, pretty pricey.

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Originally Posted by Iceman00 View Post
They make them, and I've heard AWESOME reviews on them. Though it's said you shouldn't run a underdrive pulley with a lightweight flywheel, as harmonic issues arise. Something about splitting cranks....
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Old 04-13-2010, 08:11 PM   #24
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Originally Posted by aggieE46 View Post
Yep, I've been conversing back and forth with ATI, as they made Adam's. They don't have a "street" version (with A/C) and because it's larger, it would overdrive the waterpump and alternator. Don't know if I want to deal with all that... Plus, pretty pricey.
You're talking about a harmonic dampener like ATI and fluidamper make (I would check with fluidamper too if you can, I'll be in on a group buy as long as it's 'affordable')

I was talking about Underdrive pulleys, like what Ruff and Unorthodox Racing make (for the M54) and there made out of solid aluminum, lighter weight than stock. The down side is that it's said to accelerate engine wear, and can lead to harmonic issues (though none have been reported, typical internet talk)

A few E36 driver have them, and have nothing but glowing reviews...but I'd rather have an active damper if I could.

Last edited by Iceman00; 04-13-2010 at 08:18 PM.
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Old 04-13-2010, 08:36 PM   #25
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Yep, I've been conversing back and forth with ATI, as they made Adam's. They don't have a "street" version (with A/C) and because it's larger, it would overdrive the waterpump and alternator. Don't know if I want to deal with all that... Plus, pretty pricey.
Quote:
Originally Posted by Iceman00 View Post
You're talking about a harmonic dampener like ATI and fluidamper make (I would check with fluidamper too if you can, I'll be in on a group buy as long as it's 'affordable')

I was talking about Underdrive pulleys, like what Ruff and Unorthodox Racing make (for the M54) and there made out of solid aluminum, lighter weight than stock. The down side is that it's said to accelerate engine wear, and can lead to harmonic issues (though none have been reported, typical internet talk)

A few E36 driver have them, and have nothing but glowing reviews...but I'd rather have an active damper if I could.
For the sake of discussion, it would make communication a lot more clear if the location of said pulley was included in the description. For example, crankshaft under-drive pulley, or water pump under-drive pulley.

ATI will build you whatever you want, and the price isn't that bad. Their production line is geared towards domestic V8s, so the scale is there to support good pricing. Honestly, price out a custom damper, then look at what they charge for an off the shelf SBC piece. It's pretty close.

If someone wanted a 5.5" OD damper with 2 - 6 rib serpentine drives, they can build it. It's just a mater of time and money.

Technically, they made me 2 dampers. I have another one NIB sitting on my parts shelf.
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Old 04-13-2010, 08:47 PM   #26
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For the sake of discussion, it would make communication a lot more clear if the location of said pulley was included in the description. For example, crankshaft under-drive pulley, or water pump under-drive pulley.

ATI will build you whatever you want, and the price isn't that bad. Their production line is geared towards domestic V8s, so the scale is there to support good pricing. Honestly, price out a custom damper, then look at what they charge for an off the shelf SBC piece. It's pretty close.

If someone wanted a 5.5" OD damper with 2 - 6 rib serpentine drives, they can build it. It's just a mater of time and money.

Technically, they made me 2 dampers. I have another one NIB sitting on my parts shelf.
Adam, if I remember correctly, your damper did come with an "accessory" attachment? Presumably for an A/C add on...I can't say for sure, though, I don't remember more than something about an attachment.
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Old 04-13-2010, 08:49 PM   #27
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^ Go on....
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Old 04-13-2010, 10:40 PM   #28
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Adam, if I remember correctly, your damper did come with an "accessory" attachment? Presumably for an A/C add on...I can't say for sure, though, I don't remember more than something about an attachment.
Yes I do have a Mandrel drive attachment for the damper assembly. It can be configured with a wide range of pulley sizes, including stacking 2 or more together. (It's 5" long) Normally this is used to drive a dry sump pump, vacuum pump, or fuel pump on race engines. (Or a combination of all 3)
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Old 04-13-2010, 10:53 PM   #29
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BTW, nice work on the crank studs.
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Old 04-13-2010, 10:53 PM   #30
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tell me more about the clutch setup please. could the E35 M5 pressure plate work with that setup?
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Old 04-13-2010, 11:10 PM   #31
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Wow this looks like a heck of a project! Hope this build sails smooth! Good luck and I'm looking forward for the finished engine!
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Old 04-13-2010, 11:35 PM   #32
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BTW, nice work on the crank studs.
Thanks, that and the windage tray took some work, but other than that, I have been happy with the studs. The main studs came without torque specs (VAC, again) and Raceware sent me them in all of five minutes from phone call to email box. Dealing with them made me glad I purchased their product.

I might try talking to ATI, any chance you might PM or email me a name of somebody who might be particularly helpful there?
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Old 04-14-2010, 12:05 AM   #33
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Thanks, that and the windage tray took some work, but other than that, I have been happy with the studs. The main studs came without torque specs (VAC, again) and Raceware sent me them in all of five minutes from phone call to email box. Dealing with them made me glad I purchased their product.

I might try talking to ATI, any chance you might PM or email me a name of somebody who might be particularly helpful there?
I will be sourcing Raceware product directly in the future.

Contact at ATI is Rob Sappe.

rsappe@atiracing.com

A basic single belt drive damper will be in the $500-600 range depending on how you spec it. Lead time for me was 90 days on the first one which involved some engineering, and about 45 days on the second one, which was a copy of the first.

One cautionary note about the ATI damper is that you need to press fit it onto the crank. This will require a damper installation tool, which you'll need to modify by attaching a M54 crank bolt too. (Threads are different for BMW cranks) I think the tool + modifications cost me around $100.
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Old 04-14-2010, 12:56 AM   #34
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I will be sourcing Raceware product directly in the future.
Yeah, I know what that's about, I'll be "editing" my sources in the future for the same reasons as you.

I'll likely give ATI a try, and I was aware of the installation tool, but everything comes at a cost, right?
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Old 04-14-2010, 02:29 AM   #35
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tell me more about the clutch setup please. could the E35 M5 pressure plate work with that setup?
It's late, and I'm about to go to bed, but I tried to put the E34 M5 pressure plate on to the flywheel a couple of minutes ago, and the dowels are too large for the pressure plate. This wouldn't be impossible to modify, though, as the pressure plate and flywheel are the same diameter.
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Old 04-14-2010, 10:31 AM   #36
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thanks..
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Old 07-14-2011, 11:17 PM   #37
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Does anyone have any thoughts or opinions on his choice of clutch package?
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Old 07-15-2011, 12:33 AM   #38
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