Where can I find the (corrugated?) air intake hose as used by Alpina?

[Stevehose]

I think it's corrugated, or rubber, the hose between the Alpina box and the filter box - anyone have an idea of this part number?

 

[HB Chris]

Do you have the CSi airbox to check OD? It uses a 70mm intake tube, the tube to the motor may be the same.

 

[Stevehose]

I don't have it handy but I think it's 4" or 100mm, I believe this tube is bigger diameter than the intake tube from the box to the front clip fresh air hole.

 

[HB Chris]

Just interesting that 3.0CS intake is 60mm and CSi is 70mm.

 

[rsporsche]

i would think a flexible (smooth) plastic (or rubber) pipe would be better - less air turbulence than the corrugated pipe.

 

[Stevehose]

Update, it appears to be 3" or 75mm, not 100mm. I first measured after wine, my bad. It is defintely bigger than the 70mm lower intake tube diameter, because it easily fits inside it. Will look at Porsche tubes (suggested by Markos) and McMaster Carr.

I don't have it handy but I think it's 4" or 100mm, I believe this tube is bigger diameter than the intake tube from the box to the front clip fresh air hole.

 

[Drew Gregg]

When the air is pulled into the Alpina airbox upon acceleration,do you get any noise similar to the DCOE's with the mesh filters?

 

[Stevehose]

I don't know first hand, but I suspect it is muffled quite a bit.

When the air is pulled into the Alpina airbox upon acceleration,do you get any noise similar to the DCOE's with the mesh filters?

 

[Mario L.]

Old topic that was never clearly answered.

The hose from the Alpine air plenum to the air filter housing has an 80 mm ID, the hose on the front is 70 mm.

This is as it is set up on an Alpina B2S.
The big question, where does one locate the 80 mm hose ?

Mario L.

 

[Stevehose]

AIR DUCT BLACK PAPER 80MM (SOLD PER FOOT)

Air Duct, Black Paper with Internal Foil - SOLD BY FOOTSize: 80MMShow car quality! High quality paper air quality that Newco Products had made. This air duct is black inside and out with internal foil. Made in USA.Sold per foot and cut to length with unfinished ends.**NO RETURNS ON AIR DUCT PRODUCTS

www.newcoproducts.com