Custom Intake Pipe

PrinceMiro · 10-21-2010, 09:11 AM

I was thinking of taking measurements of the intake inlet and getting a custom aluminum tube with the proper inner diameter, thickness, length, and bend angles. Good idea? Bad idea?

wildag · 10-21-2010, 09:12 AM

Define "proper" in this context.

PrinceMiro · 10-21-2010, 09:30 AM

Proper=correct...I would measure the outer diameter of the intake inlet and that would be the inner diameter of the tubing. For the length and bend angles, I can figure that out on my own.

Trev · 10-21-2010, 12:51 PM

Don't see why it'd be a bad idea. If you've got the skills i'd say go for it.

Is your idea to replace the elbow between airbox & inlet manifold?
I presume you'd need a very small rubber coupler to join to MAF plus another one at manifold end.
Don't forget to roll a bead into the ends so the rubber coupler & band clamp have something to snug up against.

Lastly have you seen the rubber samco like hoses that do this same job. I think Turner motorsport sells them for the M3's but they should fit our Z's.

PrinceMiro · 10-21-2010, 04:50 PM

Quote:

Originally Posted by Trev

Don't see why it'd be a bad idea. If you've got the skills i'd say go for it.

Is your idea to replace the elbow between airbox & inlet manifold?
I presume you'd need a very small rubber coupler to join to MAF plus another one at manifold end.
Don't forget to roll a bead into the ends so the rubber coupler & band clamp have something to snug up against.

Lastly have you seen the rubber samco like hoses that do this same job. I think Turner motorsport sells them for the M3's but they should fit our Z's.

I was actually going to remove the air box, make a custom tube, and throw on a cone filter and a heat shield. I know about the rubber coupler but what's up with the bead?

wildag · 10-21-2010, 05:02 PM

you should do some searches on this topic first. You'll find many companies have custom filters and intakes. None of them have proven HP gains.

The BMW intake is actually pretty good.

Be sure to do a before and after dyno.

jra · 10-21-2010, 08:20 PM

there was a short lived intake that utilized the oem intake port, a carbon fiber heat shield box that contained a cone filter, an aluminum mounting plate and a silicone coupler. this was a proven productive design. creating something like that would be your best bet

10-21-2010, 09:11 AM	#1
PrinceMiro Lieutenant 42 Rep 407 Posts Drives: z4 3.0i Join Date: Apr 2008 Location: CNJ iTrader: (3)	Custom Intake Pipe I was thinking of taking measurements of the intake inlet and getting a custom aluminum tube with the proper inner diameter, thickness, length, and bend angles. Good idea? Bad idea?
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10-21-2010, 09:12 AM	#2
wildag ///M'n it Up 17 Rep 344 Posts Drives: '06 ///M Roadster Join Date: Aug 2009 Location: Reston, VA iTrader: (0)	Define "proper" in this context.
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10-21-2010, 09:30 AM	#3
PrinceMiro Lieutenant 42 Rep 407 Posts Drives: z4 3.0i Join Date: Apr 2008 Location: CNJ iTrader: (3)	Proper=correct...I would measure the outer diameter of the intake inlet and that would be the inner diameter of the tubing. For the length and bend angles, I can figure that out on my own.
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10-21-2010, 12:51 PM	#4
Trev Private First Class 5 Rep 108 Posts Drives: Z4MC Join Date: May 2010 Location: Portland Oregon iTrader: (0)	Don't see why it'd be a bad idea. If you've got the skills i'd say go for it. Is your idea to replace the elbow between airbox & inlet manifold? I presume you'd need a very small rubber coupler to join to MAF plus another one at manifold end. Don't forget to roll a bead into the ends so the rubber coupler & band clamp have something to snug up against. Lastly have you seen the rubber samco like hoses that do this same job. I think Turner motorsport sells them for the M3's but they should fit our Z's.
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10-21-2010, 05:02 PM	#6
wildag ///M'n it Up 17 Rep 344 Posts Drives: '06 ///M Roadster Join Date: Aug 2009 Location: Reston, VA iTrader: (0)	you should do some searches on this topic first. You'll find many companies have custom filters and intakes. None of them have proven HP gains. The BMW intake is actually pretty good. Be sure to do a before and after dyno.
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10-21-2010, 08:20 PM	#7
jra Captain 38 Rep 879 Posts Drives: 2005 z4 Join Date: Jun 2007 Location: Texas iTrader: (3)	there was a short lived intake that utilized the oem intake port, a carbon fiber heat shield box that contained a cone filter, an aluminum mounting plate and a silicone coupler. this was a proven productive design. creating something like that would be your best bet
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