Replacement Intake Hose

Now I know why I can't afford a 328.

 

Nah, shoe goo on the cracks will salvage the original unit, no need to spend the money. That's for show cars.

 

The fact that it is for show cars is EXACTLY the point. For someone to bother to make these hoses for such an incredibly narrow market means that they have to charge a lot to make it anywhere near worthwhile. Yes it is expensive however there are cheap alternates for those who don't care. For those who do it is costly and has always been. That is why you see people paying $20K for Daytona books and tools.

 

Here's what I did: (excuse the water spots, detailing to follow). The part comes from any Pep Boys, etc. Pocket change, and the air flow will undoubtedly be more laminar. The small fitting on the side could be used for Nitrous, if you have the guts.
TN
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Is this the hose between the filter box and the air scoop? Or Between the Motronics box and the throttle body? Either way, there is no way its $1500.

I just replaced the old cracked filter box hose on my 87 328 for $130 with a new OEM part about 3 months ago. Got it from Ricambi. If its the other foot long hose for the throttle body, get AlHudsons Motovanti for about the same.

Heck, i'll sell you my old OEM one for $1000

 

ricambi has both parts... airbox hose is $126, fuel injection to TB is 379.00.

I'll still sell you my OEM one for $1000 if you want it.

Eurospares has the OEM 136008 for about E200

 

Aircraft Spruce Company ducting - 500 degree tolerance, very flexible without kinking, slides right into the factory ends. Definitely not concourse, especially since it does not come in black.

$1500 for a new one with end caps (that lasts) may be worth it for a show car. But the fact that he used my picture of it installed on my car as a negative in his ad and FML article is pretty low.
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Sorry but you car is not an 88'-89' 328, so you don't have the foam tube, this part is NLA. I posted a picture of my original tube in this thread here:

http://www.ferrarichat.com/forum/showthread.php?t=245669&highlight=air+foam+hose

If you _have_ an '88-'89 328 and don't care about concorso nor keeping your car original looking then no worry because other less expensive alternatives are available.

For the guy who is selling this, will you sell just the foam alone?

 

It looks like a nicely done part though I agree that the concept of paying 1500 bucks for a two foot piece of hose seems insane. But as noted by others, the tooling costs and the fact that there is no demand to speak of make it an expensive thing to produce. Actually, some hoses of about the same diameter used on boat systems that I am quite familiar with can match that price/length ratio...

My oem hose is still OK but the shiny covering is flaking off in places so it won't be long until replacement is needed. I would probably go with the aircraft spruce hose and wrap it with closed-cell foam like the stuff used to insulate water pipes. I'm still planning to install the 928 Motorsports SC at some point - it keeps getting delayed by other higher priority expenses. So I wouldn't spend a tone of money to replace the stock hose when it's going to be changed at some point anyway. BUT, I have to say that if I was not going to add the SC, I would probably pony up the bucks for this oem-style repro.

 

What was the ID and OD of that hose

 

http://www.aircraftspruce.com/catalog/appages/sceet.php

I used the 4 inch diameter.

 

Thank you Mule

 

You might double check my measurements. Should be the diameter of he smaller end of the connector and fit into the groove inside the connector.

 

anyone tried wrapping their original mesh core in foam and then using heat-shrink tubing over it?

most shrink tubes top out at around 120-135 degrees C, but that should be good enough.

as usual, there's a bunch of different materials - polyolefin, pvc, neoprene, fabric, etc., tho 4+" is easier to find in the first two

 

Screw that! its only that person doesnt like your solution, if it works who cares??

I like yours better than the black foam job anyway and at $1500 bucks I wouldn't be buying one if I needed one.

you fixed your issue and thats it you get to drive your car while the person who buys this product wipes theirs with a diaper and show it off.

 

Regarding the foam issue, I had the same problem with my 328 hose turning to powder but have managed to find a foam company that will provide me with an alternative product.
They sent me some samples which are almost identicle to the original. The foam is for automotive use and i am hoping i can use it to replace the foam on the bulkheads also?
The pics show new and old, I have to order the foam in a large roll but i want the car to look original, I will keep you updated with my findings.
Regards Roy
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Very interested in this Roy - are you sourcing this stuff in the UK? I am contemplating taking the engine out my 328 next winter & among other things sorting out the engine bay & insulation (some of mine is beginning to deteriorate quite badly).

The stuff round the engine bay in mine is a sort of gold colour & as far as I can tell it has a kind of stiff vinyl/canvas type backing to it. I havn't looked that closely yet but its definitly more than just foam.

I.

 

Please share where you get that foam, I have been searching for past few months for something like but no luck. Thanks very much in advance.

 

I will be getting the foam from the uk in the next few days. I will then try to fit the foam to the air intakes and assess how it looks and fits. If I am happy with the outcome I will post pics and how i fitted it with any recomendations needed.
I will keep you updated with my findings, fingers crossed.
Regards Roy
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Any update on this? Thanks.

 

Roy , Any luck in finding a source for the foam to cover the wire mesh air intake hose for my 1989 328 , Thanks Elliot [email protected] , or 516 528 5010

 

my foam is long gone....just have black duct tape around the core.

was the original foam open cell or closed cell? I'm going to try polyolefin shrink tubing as the outer sleeve, so I guess open cell would get compressed down anyway

 

It's just regular old open cell foam rubber. Closed cell is used in home insulation and things like exercise mats and is stiffer.

The foam on the original hose will absorb water. This seems an oddball design because the hose core is mesh and therefore can pass water directly into the the foam - mine was water soaked after some rain. Some sort of REAL hose would seem to be far more effective. However, I don't believe there was any intent for the hose to do what we THINK it was there to do.

The foam's purpose , in my opinion and based on what I observed with my 328, is intake noise reduction. It was not designed to keep the intake air cool and really has no effect on that at all. The run is only about 18" long, in the coolest part of the engine area, as opposed to 3 more feet of heat-soaked METAL tubing that the air flow moves through. The air is going to pick up the heat from the rest of the 3+ foot long metal system regardless of how cool it is at the air filter. Further, if you look at modern cars with cold air induction, none have insulated air ducts. They are just thin, plastic tubes. The heat induced into the air comes from the air being in the engine system - manifolds, etc - not the short trip as they are ducted to those systems.

When I removed the insulated hose from my 328 the noise level in the cockpit was decidedly higher at cruise. I made a new insulated hose with foam rubber and black duct tape (Gorilla tape) over the original hose core. It looks good but I have yet to install it.