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Join Date: Jan 2005
Location: Lake Forest, CA
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Fuel Distributor Guru's Question
I have an 81' motor in a 74'. It has the lamda removed and it was running a 78-79 **0 438 100 031** Fuel distributor.
It was suggested that I try a **0 438 100 037** that fits the turbo engine. The reason is I have ported heads, Euro runners, 20/21 cams 74' exhaust and gutted muffler. It is told to me that this distributor will give a little more fuel to match the extra air. Anyone have any knowledge on this subject??? Thanks in advance, Paul
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If you aint breakin' it, you aint racing it hard enough! 1974 911 3.0 Euro Sahara Beige/Black |
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08-08-2007, 07:05 AM
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Location: Marysville Wa.
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won't fit, sizewise, and it's internal pressure regulator runs the fuel pressure way higher than non-turbo CIS.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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08-08-2007, 08:08 AM
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Funny John, I was trying to call you but couldn't find your number.
I got the same info from someone else so I'm ditch'n that idea. The other question is: The one I have is part number (0 438 100 031) There was a Euro version of the 78-79 distributor designed for the larger runners. Anyone have THAT part number??? Thanks, Paul
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If you aint breakin' it, you aint racing it hard enough! 1974 911 3.0 Euro Sahara Beige/Black |
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08-08-2007, 08:19 AM
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OK, got it! There is not a "Euro" version. The 0 438 100 031 was used upto 79' in the US & EURO and then they changed the US version to smaller runners, added LAMDA, and went to a smaller Distributor. The EURO engines continued to use the 0 438 100 031 till 82' (I think).
So there it is if anyone has anything to add please do. Thanks, Paul
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If you aint breakin' it, you aint racing it hard enough! 1974 911 3.0 Euro Sahara Beige/Black |
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08-08-2007, 08:26 AM
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Location: Novato, CA
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If you are looking for a little more fuel, there is an adjustment for each one of the injectors on top of the fuel distributor itself. You remove a cap and there's a tiny allen head under there that you can turn to increase\decrease the amount of flow. When I still had my 80 SC, I flow-matched the injectors by pulling all the injectors out of the intakes and putting them into graduated baby food containers. Running the fuel pump for a short period will give you a measured amount of fuel in them. You can repeat this test a few times and adjust them as closely as possible. Might work for your application...
ianc
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BMW 135i. Nice. Fast. But no 911... "I will tell you there is a big difference between driving money and driving blood, sweat and tears." - PorscheGuy79 |
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08-08-2007, 08:35 AM
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Excellent Idea inac!
I am having mine rebuilt and a shop and said they flow test after rebuilt to insure equal pressure/flow from all ports. I wonder what the min/max adjustment will show relating to fuel pressure/volume? I wonder if I ask to preset to MAX flow if this will be the best thing for my application. Paul
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If you aint breakin' it, you aint racing it hard enough! 1974 911 3.0 Euro Sahara Beige/Black |
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08-08-2007, 09:02 AM
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Location: Puyallup WA
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Is your car running lean? I would guess there's plenty of headroom there for just about anything you can do to a NA engine.
Mike
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'78 911SC Targa (SCWDP member #17) '74 MGB (one owner) Pickup 2013 Ford Explorer Sport 2013 VW Golf TDI |
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08-08-2007, 03:23 PM
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