Why is there a 5-way splitter and a 7-way splitter
03-10-2012, 06:04 PM
#1
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Why is there a 5-way splitter and a 7-way splitter
when on the 7-way splitter two vacuum ports are plugged?
Inquiring minds want to know
Inquiring minds want to know
03-10-2012, 08:45 PM
#2
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Because the people that make the splitters had an entire box of "over-run" 7 way pieces and they sold them to Porsche cheaper than the 5 way?
Actually, I think that you probably have a 5 speed. On an automatic, one of the two extra ports goes to the modulator, leaving only one port?
Actually, I think that you probably have a 5 speed. On an automatic, one of the two extra ports goes to the modulator, leaving only one port?
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Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
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Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
03-11-2012, 06:06 PM
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Can't figure it out. Maybe the 7-way is a relic of an older MY design?
I have an automatic, but with a 5-way splitter. One to the intake, two to the FPR, one to the FPD, one to the trans modulator.
On a 5-speed, are only four ports in use?
I have an automatic, but with a 5-way splitter. One to the intake, two to the FPR, one to the FPD, one to the trans modulator.
On a 5-speed, are only four ports in use?
03-11-2012, 06:12 PM
#4
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Yes- 1 port from the lower plenum, 3 out to the fuel dampers and FPR, and 1 blocked.
WSM diagram, with the 5th port going to auto transmission:
WSM diagram, with the 5th port going to auto transmission:
03-11-2012, 06:20 PM
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Right, thanks for confirming. That picture is the promised land I will never reach 
but I can at least clean the engine up.
How are ports plugged from the factory? I've seen the put-in-a-screw method, but it is a bit too much shade tree mechanic for me.
but I can at least clean the engine up.How are ports plugged from the factory? I've seen the put-in-a-screw method, but it is a bit too much shade tree mechanic for me.
03-11-2012, 06:31 PM
#6
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IIRC there are little black plastic mushroom-shaped plugs. I have an extra old 5-way somewhere in the garage, will try to take a pic tonight.
03-11-2012, 06:48 PM
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They make a small metal plug to fit into the rubber tee. They are available.
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03-11-2012, 06:56 PM
#8
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Ah! 'Stopper', 900 312 012 02.
03-11-2012, 08:16 PM
#10
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Pelican says NLA but 928Intl lists them. Maybe they'll have 'em- certainly used, at least.
