 Type IV plenum intake manifold questions..., Why single and not double like the 911 motor? |
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| Mueller |
 Mar 14 2015, 10:28 AM
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#1
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914 Freak!  Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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Has anyone made a dual plenum like used on the 911 engines for a Type IV?
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| r_towle |
Mar 14 2015, 05:04 PM
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#2
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Custom Member Group: Members Posts: 24,645 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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I recall seeing a race car running two full Djet setups with two plenum a and two throttle bodies etc, the plenums are welded together
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| Mark Henry |
Mar 14 2015, 05:11 PM
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#3
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(r_towle @ Mar 14 2015, 07:04 PM)  I recall seeing a race car running two full Djet setups with two plenum a and two throttle bodies etc, the plenums are welded together Maybe oldschool with D-jets, but why would you do this with modern programmable FI? The only reason to do this over ITB's is for a more stable MAP sensor signal with the single TB intake. It's why Porsche did it. |
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| r_towle |
Mar 15 2015, 12:57 PM
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#4
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Custom Member Group: Members Posts: 24,645 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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QUOTE(Mark Henry @ Mar 14 2015, 07:11 PM) QUOTE(r_towle @ Mar 14 2015, 07:04 PM) I recall seeing a race car running two full Djet setups with two plenum a and two throttle bodies etc, the plenums are welded together Maybe oldschool with D-jets, but why would you do this with modern programmable FI? The only reason to do this over ITB's is for a more stable MAP sensor signal with the single TB intake. It's why Porsche did it. The one I saw, I think DD know about it, but it was a long time ago, and posted here, was two full DJet setups to make a larger motor work. Personally I think it was a cool thing to try, but doing it today I would just go with a single larger throttle body, and modern EFI |
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Posts in this topic
Mueller Type IV plenum intake manifold questions... Mar 14 2015, 10:28 AM
Bob L. Someone here has played around with it. I forget w... Mar 14 2015, 10:44 AM Mike Bellis Maybe it's because the 911 unit is engineered ... Mar 14 2015, 11:03 AM Mark Henry I played with the design, it would work but only a... Mar 14 2015, 05:01 PM Mark Henry Here.... I'll save you a shitload of research ... Mar 14 2015, 05:22 PM type47 Tangerine Racing system as seen at Hershey
Mar 14 2015, 09:20 PM Jake Raby When I've gone this way the result was an even... Mar 14 2015, 10:28 PM
Mark Henry
When I've gone this way the result was an eve... Mar 15 2015, 07:05 AM
toon1
When I've gone this way the result was an eve... Mar 15 2015, 09:24 AM toon1 Mike, look up Hemholtz resinator and supercar int... Mar 14 2015, 10:28 PM Mueller If you notice on the 911 engine, they are using in... Mar 15 2015, 09:41 AM toon1 There is some cool stuff out there. I just seen a ... Mar 15 2015, 09:45 AM Mueller
There is some cool stuff out there. I just seen a... Mar 15 2015, 11:33 AM r_towle A bit confused on the pictures Mike.
My 911 (3.2 ... Mar 15 2015, 01:04 PM toon1
A bit confused on the pictures Mike.
My 911 (3.2... Mar 15 2015, 02:43 PM McMark I suspect the 911 intake developed two 'plenum... Mar 15 2015, 05:26 PM toon1
I suspect the 911 intake developed two 'plenu... Mar 15 2015, 05:55 PM r_towle
[quote name='McMark' post='2160471' date='Mar 15 ... Mar 15 2015, 08:35 PM McMark To what end? Why spend the time engineering? And... Mar 15 2015, 06:39 PM larss Not that it adds wery much but this is my expetime... Mar 16 2015, 02:18 AM |
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