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1. [Land-speed] Intake Manifold Question(s) (score: 1): Author: Larry Mayfield <drmayf@mayfco.com>; Date: Sun, 05 Jun 2011 08:48:39 -0700; Ok, those of you who consider me a crank can hit delete now, lol.... I am making or revising an old manifold for use on the Sunbeam. I notice that the runners are pretty dog gone rough and I want to; /html/land-speed/2011-06/msg00010.html (8,565 bytes)
2. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: "Dave Dahlgren" <dahlgren536@comcast.net>; Date: Sun, 5 Jun 2011 12:24:57 -0400; 36 to no finer than 60 grit is just fine. You will be hard pressed to build a 200 cu in plenum... 10 X 5 X 4 =200 and will not reach the end runners very well. -- Original Message -- From: "Larry May; /html/land-speed/2011-06/msg00011.html (9,164 bytes)
3. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: Larry Mayfield <drmayf@mayfco.com>; Date: Sun, 05 Jun 2011 09:55:54 -0700; Plenum is to be made from 4 in sq tube, 1/8 wall for a 3.75 sq inside dim. and about 14 inches long. That covers all the runners and provides about 196 cubic inches. Plus the TB mount on the side wil; /html/land-speed/2011-06/msg00012.html (10,165 bytes)
4. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: "Dave Dahlgren" <dahlgren536@comcast.net>; Date: Sun, 5 Jun 2011 13:02:52 -0400; You are absolutely right removing metal to make it pretty that is already missing material only makes it worse.. Dave -- Original Message -- From: dan warner To: Dave Dahlgren ; drmayf@mayfco.com ; l; /html/land-speed/2011-06/msg00013.html (8,051 bytes)
5. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: "Dave Dahlgren" <dahlgren536@comcast.net>; Date: Sun, 5 Jun 2011 13:09:19 -0400; you need 2/3 the port area in every directon from the port opening seens hard to thionk in will fit with those dimensions but might. Surface finish through empirical testing for 35 years.. -- Origina; /html/land-speed/2011-06/msg00014.html (10,563 bytes)
6. [Land-speed] Intake Manifold Question(s) (score: 1): Author: "Kirkwood" <saltfever@comcast.net>; Date: Sun, 5 Jun 2011 17:19:36 -0700; The founder of Go Power did this work while working on his PhD at Stanford about 60 years ago. He was an avid go-carter and the emphasis in those days was "port and polish" . . . with emphasis based; /html/land-speed/2011-06/msg00015.html (8,751 bytes)
7. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: "Rick Byrnes" <Rick@RBMotorsports.com>; Date: Sun, 5 Jun 2011 20:25:14 -0400; Oh Doc, we NEVER think of you as a crank..... _______________________________________________ Land-speed@autox.team.net Donate: http://www.team.net/donate.html Archive: http://www.team.net/archive F; /html/land-speed/2011-06/msg00016.html (7,977 bytes)
8. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: Larry Mayfield <drmayf@mayfco.com>; Date: Sun, 05 Jun 2011 17:40:11 -0700; Well...I do seem to go around in circles a lo these days... and I am not centered. I have been know to wildly break things, so I guess I am cranky... What's up my friend? And get your tongue out of y; /html/land-speed/2011-06/msg00017.html (8,315 bytes)
9. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: Larry Mayfield <drmayf@mayfco.com>; Date: Sun, 05 Jun 2011 17:46:21 -0700; Good info. Thanks, Elon, Dave. Now, anybody with a flow bench wanna test a manifold from smooth to gritty? That should be a great se of data. Any old manifold would work. Polish it to a mirror, take; /html/land-speed/2011-06/msg00018.html (10,076 bytes)
10. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: "Dave Dahlgren" <dahlgren536@comcast.net>; Date: Sun, 5 Jun 2011 21:20:46 -0400; Been there done that 3 decades ago did not bother to save the data just filed it away mentally. You need to keep reynolds numbers in mind when doing flow bench work BTW... Flowing at 10 to 28 inches; /html/land-speed/2011-06/msg00019.html (7,858 bytes)
11. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: "Joe & Lynne Lance" <jolylance@earthlink.net>; Date: Sun, 5 Jun 2011 23:49:18 -0400; Maybe some analysis would be useful if done as follows: Assume steady state flow and an air mass flow rate thru a tube with representative pressure and temperature conditions at the inlet or outlet.; /html/land-speed/2011-06/msg00020.html (10,181 bytes)
12. Re: [Land-speed] Intake Manifold Question(s) (score: 1): Author: dan warner <dwarner230@yahoo.com>; Date: Sun, 5 Jun 2011 09:38:27 -0700 (PDT); I had the opportunity to look at a set of stock high performance heads that just come off of a CNC porting machine on Friday. I was interested that the port runners were not modified the total length; /html/land-speed/2011-06/msg00024.html (10,989 bytes)

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