Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882256
01/31/21 12:57 AM
01/31/21 12:57 AM
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Joined: Jan 2003
Posts: 27,483 So Cal
autoxcuda
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I have had one of these manifolds for over 40 years. Used it on an A/SM hemi Cuda and now on a 426 Hemi powered Model A. At the 2014 Mopars at the Strip, when Tom Hoover and the Ramchargers autographed the dash. Tom Hoover said he never could get that manifold to work the way he wanted. Oh, and by the way, it will be for sale when I install the stack injection back on the Hemi. Tom was a perfectionist. He was never happy with the cross ram wedge, and the Weiand Tunnel SixPack either. He definitely had his hand in on that Wieand manifold. There was even a fiberglass intake to compare it to
Development
Last edited by autoxcuda; 01/31/21 01:16 AM.
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: dvw]
#2882317
01/31/21 10:53 AM
01/31/21 10:53 AM
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Joined: Mar 2011
Posts: 3,106 Michigan
A727Tflite
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Last edited by Transman; 02/09/21 09:47 AM.
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882341
01/31/21 12:00 PM
01/31/21 12:00 PM
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Joined: Jan 2003
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autoxcuda
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Autocuda - the date on the Tech write up from Tom was dated 6/74. At that point in time Tom wasn’t happy with the manifold and as you can see was still working on it. I was still running Super Stock with my car and at Indy that year had the fastest car in its class using the STR. To the contrary - never had any issues launching the car. A friend of mine was using the Weiand and he was a solid tenth behind me. Bantering back and forth at a Milan test day - the explanation that was given was the Bauman carbs made the car fast and clean. From my recollection they developed the Weiand further at Spehar’s and Rossi was one of the first guys to get the cals for the carbs and the mods for the manifold. I left SS at the end of 74. Side note - the pics of the Indy manifold Doug posts - looks a lot like an STR derivative. Is Spehar’s place called SVI ? I sorta assume. But don’t want to do that. The picture I posted seems like they tested plenum box sizes. The small one would almost effectively be a tunnel ram? Maybe baseline for the test? BTW, that picture is not part of that memo nor the one below. Just shown for example. Looks like they were getting the ball rolling serious with Weiand 7 days later.
Last edited by autoxcuda; 01/31/21 12:24 PM.
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882410
01/31/21 02:46 PM
01/31/21 02:46 PM
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Joined: Jan 2003
Posts: 27,483 So Cal
autoxcuda
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: autoxcuda]
#2882423
01/31/21 03:15 PM
01/31/21 03:15 PM
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Joined: Mar 2011
Posts: 3,106 Michigan
A727Tflite
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Last edited by Transman; 02/09/21 09:49 AM.
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882426
01/31/21 03:19 PM
01/31/21 03:19 PM
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Joined: Jan 2003
Posts: 27,483 So Cal
autoxcuda
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Autocuda - Ron was using the CD cam, me the GK.
Comparing cars, the GK made more power. The dyno runs you show, while interesting are not the one I remember. The one I mentioned to you Show the GK R-276 vs. the CD R-286. The GK was better.
For some reason GK never got their due with Chrysler. Ok.... I’ll dive back in....
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882437
01/31/21 03:31 PM
01/31/21 03:31 PM
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Joined: Oct 2007
Posts: 4,213 New York
polyspheric
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New York
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Clearly, volume is exactly the same. Thanks for clearing that up.
Boffin Emeritus
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882770
02/01/21 02:33 PM
02/01/21 02:33 PM
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Joined: Sep 2003
Posts: 19,657 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
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north of coder
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And this is how some are modifying the Indy. as poly said : "that's a HUGE reduction in plenum volume. why ?" my question as well.
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882774
02/01/21 02:47 PM
02/01/21 02:47 PM
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Joined: Dec 2005
Posts: 1,495 Shelby mi.
JAKE68
pro stock
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pro stock
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transman , i have seen this mod done to a few but never have heard of any results. I would think you would have to run the motor up higher???
JAKES AUTOMOTIVE
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: JAKE68]
#2882789
02/01/21 03:19 PM
02/01/21 03:19 PM
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Joined: Mar 2011
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Last edited by Transman; 02/09/21 09:50 AM.
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2882803
02/01/21 03:42 PM
02/01/21 03:42 PM
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Joined: Oct 2007
Posts: 4,213 New York
polyspheric
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Joined: Oct 2007
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I thought I saw something, but I was wrong.
Boffin Emeritus
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: polyspheric]
#2882818
02/01/21 04:32 PM
02/01/21 04:32 PM
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Joined: Mar 2011
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Last edited by Transman; 02/09/21 09:52 AM.
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: cudaman1969]
#2882835
02/01/21 05:16 PM
02/01/21 05:16 PM
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Joined: Jan 2003
Posts: 27,483 So Cal
autoxcuda
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After reading these post can you imagine where Chrysler would of been, then and now, without those guys expertise? Chrysler had a handful of outside contract development people/companies during the 70’s. Mostly the same group with a few changes I can see from ‘71-‘79 IIRC, that contract deal died in early 80’s and went in house. Hoover left in 1979 (I have his brief announcement to the contractors). SVI (Ted Sphear) Don Carlton Keith Black Bob Tarozzi (Later Phoenix) Mullen & Co (Bob Mullen) Example...
1974 Engineering & Development Liaison List
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Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: autoxcuda]
#2882842
02/01/21 05:29 PM
02/01/21 05:29 PM
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Joined: Mar 2011
Posts: 3,106 Michigan
A727Tflite
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Last edited by Transman; 02/09/21 09:54 AM.
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