 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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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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| Jake Raby |
Mar 14 2015, 10:28 PM
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#2
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
When I've gone this way the result was an even more difficult to tune engine that was much more picky about cam specs than any other way. I've always had better luck with twin ITBs over a central plenum or a pair of localized plenums.
Only once has this made more power here and that was a 2.6L engine for a square back where I was able to get 80% of the engine's displacement into a pair of plenums. It wasn't worth the 6Hp that it made. This post has been edited by Jake Raby: Mar 14 2015, 10:29 PM |
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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 r_towle I recall seeing a race car running two full Djet s... Mar 14 2015, 05:04 PM
Mark Henry
I recall seeing a race car running two full Djet ... Mar 14 2015, 05:11 PM r_towle
I recall seeing a race car running two full Djet... Mar 15 2015, 12:57 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 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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