Dual Cone Intake

TiAg335i · 07-28-2008, 09:06 PM

Anybody have issues with the couplers in their dual cones slipping "into" the filter? I was reinstalled them again today after finding a small rubber piece inside the filter, and after I attached coupler to filter, I went to push it down the intake hosing and the coupler went in the filter...I finally got it in there securely after 3 attempts...but it leaves me worried.

My concern is that this seems dangerous when driving, if the couplers are so loosely secured in the filter housing. I tightened them as hard as a I could. Should I be worried if they "seem" snug in there and not worry about them falling "in" the filter when driving?

Hopefully you guys can picture what I am trying to say.

cyphr · 07-28-2008, 09:58 PM

Are you using T-bolt clamps or the regular worm drive clamps? If you're still using worms, the t-bolts should fix your problem. Hairspray on the couplers works too.

TiAg335i · 07-29-2008, 08:58 AM

I'm using what was supplied, a worm clamp. Any idea where I can get t-bolt clamps locally?

cyphr · 07-29-2008, 10:50 AM

I picked mine up from a local turbo shop.

aab3218 · 07-29-2008, 02:22 PM

This is the issue I was telling you about, since the coupler is not flat enough. It is easy for the filter to slip off it. The fix is for the coupler to be more flat so it has more surface area on the filter flange to grab.

TiAg335i · 07-29-2008, 02:56 PM

Yeah. I think it's a serious design flaw - the coupler has a very smooth finish (add to that the oily residue on the filter flange) - think it would have been better to go with a wrinkle powdercoat finish for more grip.

The filters are fitting just fine now, but I'm worried if they have the potential to fall out/off after a nice pothole. I don't think I will have these on for long. Probably gonna switch to the stock airbox.

marcvtec · 07-29-2008, 02:58 PM

Here's a suggestion, use some sandpaper on the couplers. to make it more rough.
then make sure you wash the coupler before re-install.

BMW_TT · 07-29-2008, 03:12 PM

Mine seems to be holding on well. I tightened them pretty hard. I never yanked on it to test how well it'll stay.

OpenFlash · 07-29-2008, 04:20 PM

Just tighten the filters on to the pipe before installing the pipe. This way you can make sure they are sitting straight and clamped on tightly.

Shiv

07-28-2008, 09:06 PM	#1
TiAg335i Trance Life 315 Rep 4,706 Posts Drives: 2007 E92 335i Join Date: Jan 2007 Location: Long Island, NY iTrader: (4)	Dual Cone Intake - Couplers slipping into filter Anybody have issues with the couplers in their dual cones slipping "into" the filter? I was reinstalled them again today after finding a small rubber piece inside the filter, and after I attached coupler to filter, I went to push it down the intake hosing and the coupler went in the filter...I finally got it in there securely after 3 attempts...but it leaves me worried. My concern is that this seems dangerous when driving, if the couplers are so loosely secured in the filter housing. I tightened them as hard as a I could. Should I be worried if they "seem" snug in there and not worry about them falling "in" the filter when driving? Hopefully you guys can picture what I am trying to say.
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07-28-2008, 09:58 PM	#2
cyphr Major 69 Rep 1,239 Posts Drives: 08 335xi coupe Join Date: Aug 2007 Location: Boston iTrader: (12)	Are you using T-bolt clamps or the regular worm drive clamps? If you're still using worms, the t-bolts should fix your problem. Hairspray on the couplers works too.
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07-29-2008, 08:58 AM	#3
TiAg335i Trance Life 315 Rep 4,706 Posts Drives: 2007 E92 335i Join Date: Jan 2007 Location: Long Island, NY iTrader: (4)	I'm using what was supplied, a worm clamp. Any idea where I can get t-bolt clamps locally?
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07-29-2008, 10:50 AM	#4
cyphr Major 69 Rep 1,239 Posts Drives: 08 335xi coupe Join Date: Aug 2007 Location: Boston iTrader: (12)	I picked mine up from a local turbo shop.
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07-29-2008, 02:22 PM	#5
aab3218 Banned 3 Rep 77 Posts Drives: BMW Join Date: Jun 2008 Location: UK iTrader: (0)	This is the issue I was telling you about, since the coupler is not flat enough. It is easy for the filter to slip off it. The fix is for the coupler to be more flat so it has more surface area on the filter flange to grab.
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07-29-2008, 02:56 PM	#6
TiAg335i Trance Life 315 Rep 4,706 Posts Drives: 2007 E92 335i Join Date: Jan 2007 Location: Long Island, NY iTrader: (4)	Yeah. I think it's a serious design flaw - the coupler has a very smooth finish (add to that the oily residue on the filter flange) - think it would have been better to go with a wrinkle powdercoat finish for more grip. The filters are fitting just fine now, but I'm worried if they have the potential to fall out/off after a nice pothole. I don't think I will have these on for long. Probably gonna switch to the stock airbox.
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07-29-2008, 02:58 PM	#7
marcvtec Banned 407 Rep 2,704 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	Here's a suggestion, use some sandpaper on the couplers. to make it more rough. then make sure you wash the coupler before re-install.
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07-29-2008, 03:12 PM	#8
BMW_TT Colonel 224 Rep 2,548 Posts Drives: E92 335i Join Date: Aug 2007 Location: Dallas, TX iTrader: (4)	Mine seems to be holding on well. I tightened them pretty hard. I never yanked on it to test how well it'll stay.
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07-29-2008, 04:20 PM	#9
OpenFlash 1737 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	Just tighten the filters on to the pipe before installing the pipe. This way you can make sure they are sitting straight and clamped on tightly. Shiv
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