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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Procede Single Turbo 335xi



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      07-17-2012, 03:35 PM   #23
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Quote:
Originally Posted by JamesM3M5 View Post
Part of the clutch locking mechanism in the transfer case. It uses a stepper motor on a cam that clamps the clutches tighter/looser to increase/decrease front drive. The worm gear can strip since it's made of plastic.
Is this the part of the servo motor that typically fails? (I think I know exactly what you're referring to) However....It could be that if we strengthen that gear, it could potentially find the next weakest link. Maybe that gear can help preserve the gearbox. Obviously worthless if you're destroying it on a monthly basis though.
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      07-17-2012, 06:06 PM   #24
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Quite a bit of good info in the threads on the AWD section, we've discussed the XI drivetrain quite a bit.

IMO, there really isn't enough information to suggest a weak point yet since many failures are with stock units. Basically when you break it, then take it in for a tear-down and they can help us with stronger versions of what has failed. I didn't want to be the first 335xi to find the limit, but I've got an addiction to speed and can't help myself

I've got a TNT this Friday to see what the car will run with nitrous + FBO + Meth, after that I'll do a dyno to see what the AWHP is.
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      07-18-2012, 08:11 AM   #25
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Quote:
Originally Posted by mykal335xi View Post
Quite a bit of good info in the threads on the AWD section, we've discussed the XI drivetrain quite a bit.

IMO, there really isn't enough information to suggest a weak point yet since many failures are with stock units. Basically when you break it, then take it in for a tear-down and they can help us with stronger versions of what has failed. I didn't want to be the first 335xi to find the limit, but I've got an addiction to speed and can't help myself

I've got a TNT this Friday to see what the car will run with nitrous + FBO + Meth, after that I'll do a dyno to see what the AWHP is.
Plus E85? Haha, not sure if you'll see any more gain but figured I'd ask anyways
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      07-18-2012, 10:59 AM   #26
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Plus E85? Haha, not sure if you'll see any more gain but figured I'd ask anyways
I run E85 daily at a 40% mixture with 93 octane, but for the track visit I'll be taking 5 gallons of VP105 assuming I can get it. The track has VP pumps, but the last few visits the unleaded pump has been empty or broken (unleaded race fuel is hard to find around here, everyone runs leaded).
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      07-18-2012, 11:40 AM   #27
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I'm in the same boat as Tahoedr, offered my car a few times via PMs, emails to shiv, emails to sales at vishnu and mostly ends with radio silence. At least there are two local Xis waiting to be test vehicles as soon as Shiv is ready
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      07-18-2012, 12:03 PM   #28
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Quote:
Originally Posted by mykal335xi View Post
I run E85 daily at a 40% mixture with 93 octane, but for the track visit I'll be taking 5 gallons of VP105 assuming I can get it. The track has VP pumps, but the last few visits the unleaded pump has been empty or broken (unleaded race fuel is hard to find around here, everyone runs leaded).
Cool, that should work too haha
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      07-18-2012, 02:36 PM   #29
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I talked to a representative of odometer gears, about a month ago. They mentioned having an upgrade for the ATC300 already a few weeks from having completed the R&D. If someone would like to investigate, be my guest. They should be done with R&D by now.
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      02-21-2013, 11:27 AM   #30
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Update: Here is an XI with big single turbo

http://www.youtube.com/watch?feature...&v=jSGpWbrmDXg
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      02-21-2013, 11:35 AM   #31
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Quote:
Originally Posted by GraphiteBastard
Update: Here is an XI with big single turbo

http://www.youtube.com/watch?feature...&v=jSGpWbrmDXg
And the other e90 thread http://www.e90post.com/forums/showthread.php?t=805951

More info coming once I get back from vacation and can provide logs, times, and updates.
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      07-04-2013, 11:34 AM   #32
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Quote:
Originally Posted by idspeedskater
Quote:
Originally Posted by GraphiteBastard
Update: Here is an XI with big single turbo

http://www.youtube.com/watch?feature...&v=jSGpWbrmDXg
And the other e90 thread http://www.e90post.com/forums/showthread.php?t=805951

More info coming once I get back from vacation and can provide logs, times, and updates.
Any update with some #'s..?
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      07-31-2013, 10:47 AM   #33
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bump
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      07-31-2013, 11:00 AM   #34
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bump... oh, I'm the one who needs to provide details.

time to pass CA emissions and then get to testing while work is somewhat quiet
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      07-31-2013, 11:25 AM   #35
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Quote:
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bump... oh, I'm the one who needs to provide details.

time to pass CA emissions and then get to testing while work is somewhat quiet
I need this
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      07-31-2013, 12:03 PM   #36
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Quote:
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I need this
Yes, yes you do. It is definitely a blast to drive.
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      07-31-2013, 01:55 PM   #37
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Single Turbo xi

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      07-31-2013, 02:01 PM   #38
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^^ Did this car ever make it to a dyno??
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      07-31-2013, 02:34 PM   #39
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Quote:
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^^ Did this car ever make it to a dyno??
It did. Check the first post on this thread.

http://www.e90post.com/forums/showthread.php?t=805951


519 AWHP on the FFTEC Motorsports Mustang dyno.
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      08-01-2013, 07:40 AM   #40
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It did. Check the first post on this thread.

http://www.e90post.com/forums/showthread.php?t=805951


519 AWHP on the FFTEC Motorsports Mustang dyno.
we want recent updates not from February
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      08-01-2013, 09:00 AM   #41
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we want recent updates not from February
The car hasn't had anything done to it since the initial build so I wouldn't expect much change, however, I just found out there is an awd dyno a couple blocks from where I work, so once I get done with emissions I will get some time over there.

Car is still a blast and behaved like a champ on a 2000 mile road trip to Idaho and back. About 9000 miles since the ST went in and all is well. No, still not launching it to test the TC and don't really plan to.
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