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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 02-17-2003, 02:13 AM
Ron Stygar's Avatar
Ron Stygar Ron Stygar is offline
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S54 Engine with plugged ingots

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  #2  
Old 02-17-2003, 06:33 AM
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Randy Forbes Randy Forbes is offline
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So, how much lower is the idle air feed pipe now?

Did you see what I mean about the idle valve fitting into a pocket on the backside of the airbox? Prevents lowering it unless you mod the airbox...
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Old 02-17-2003, 10:15 PM
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Ron Stygar Ron Stygar is offline
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Quote:
Originally posted by Randy Forbes
So, how much lower is the idle air feed pipe now?

Did you see what I mean about the idle valve fitting into a pocket on the backside of the airbox? Prevents lowering it unless you mod the airbox...
Each hose is 1/16 inch shorter than what was there.
Yes.
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  #4  
Old 02-18-2003, 01:04 AM
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TeamM3 TeamM3 is offline
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care to explain to the rest of us numbnuts what you guyz are talking about?
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Old 02-18-2003, 06:52 AM
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Randy Forbes Randy Forbes is offline
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Quote:
Originally posted by TeamZ4
care to explain to the rest of us numbnuts what you guyz are talking about?
The blue tube shown in Ron's opening picture turns out to be the highest point of the engine (as far as a strut brace is concerned).

That was why azzman had to come up with another pattern of bar.
Ron too has been working on one.

While I had the airbox off my car I tried a couple of tricks to lower that tube. Extensive work required no matter which approach you take.

To really answer your question:
The blue tube introduces the idle air to the throttle bodies (downstream of the butterflys).
That "device" under the blue tube is a valve that allows the air to flow through.
Underneath the valve is a rubber tube that gets its supply of air from the airbox plenum, downstream of the air flowmeter.
Naturally, the injectors supply the fuel for atomization.

Too bad we need to keep the air flowmeter in the circuit, some nice velocity tubes with "socks" on them would really look nice...
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1957 Austin-Healey 100/6 Wine Red
1961 McCulloch R1 go-kart Screaming Yellow
1995///M3 Coupe Dakar Yellow Eurosport Twinscrew S/C
1999///M Rdstr Cosmos Black Eurosport Twinscrew S/C
1999///M Coupe Estoril Blue Eurosport Twinscrew S/C
2001///M Rdstr Steel Gray
2011 X5 35i Sport Deep Sea Blue/Cinnamon
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