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[GMCnet] "Bench Racing" the GMC - Modern propulsion [message #223666]

Thu, 26 September 2013 20:52

glwgmc

Messages: 1014
Registered: June 2004

Karma:

Senior Member

Three limiting factors:

1) front to back the area allocated to propulsion system is very short so the transmission must do a 180 degree turn - output of the engine points rearward, output of the transmission points forward and the location of the drive shafts front to back can't change much

2) top to bottom the area allocated to propulsion system is very low so the drive shaft to top of air cleaner distance is severely limited - can't change the drive shaft location up/down and can't make much of a change to the cockpit deck height off the ground

3) has to be able to handle the torque loads to pull a 12,000 pound vehicle up a mountain grade

Anything that will do all three of these things is a contender. Anything that will do two out of three is a non-starter.

Most likely the "solution" will need to come in the form of a 4th gear for the existing transmission. That would allow low enough gearing to match the torque curves of modern crate engines while still allowing the engine to turn low enough RPMs to be practical.

Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
541-499-1027
541-592-5360

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78 Royale
Kerby, OR

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[Message index]

		[GMCnet] "Bench Racing" the GMC - Modern propulsion By: glwgmc on Thu, 26 September 2013 20:52
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Phantom2 on Thu, 26 September 2013 23:45
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: USAussie on Fri, 27 September 2013 17:48
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Chr$ on Fri, 27 September 2013 17:54
		How 'bout this one -- propulsion By: JimGunther on Fri, 04 October 2013 08:57
		Re: [GMCnet] How 'bout this one -- propulsion By: ljdavick on Fri, 04 October 2013 09:19
		Re: [GMCnet] How 'bout this one -- propulsion By: powerjon on Fri, 04 October 2013 10:18
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Francois on Fri, 04 October 2013 13:46
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: ljdavick on Fri, 04 October 2013 17:20
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: jhbridges on Fri, 04 October 2013 17:30
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Steven Ferguson on Mon, 07 October 2013 07:37
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Francois on Mon, 07 October 2013 17:55
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: k2gkk on Mon, 07 October 2013 19:11
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Keith V on Fri, 04 October 2013 14:04
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Francois on Fri, 04 October 2013 15:13
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: emerystora on Fri, 04 October 2013 15:27
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: jhbridges on Fri, 04 October 2013 17:21
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: hnielsen2 on Fri, 04 October 2013 15:05
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Matt Colie on Fri, 04 October 2013 19:33
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Francois on Fri, 04 October 2013 22:48
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Dave Mumert on Fri, 04 October 2013 22:53
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: USAussie on Sun, 06 October 2013 23:45
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Francois on Mon, 07 October 2013 07:29
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Keith V on Mon, 07 October 2013 09:57
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: JimGunther on Mon, 07 October 2013 13:32
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Ronald Pottol on Mon, 07 October 2013 13:56
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: k2gkk on Mon, 07 October 2013 15:41
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: jhbridges on Mon, 07 October 2013 19:19
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: jknezek on Mon, 07 October 2013 14:22
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Jeff Marten on Mon, 07 October 2013 15:38
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Ronald Pottol on Mon, 07 October 2013 00:14
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: jhbridges on Mon, 07 October 2013 09:45
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: rcjordan on Fri, 04 October 2013 21:16
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Chris Tyler on Sun, 06 October 2013 13:36
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Cadillackeeper on Sun, 06 October 2013 14:13
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: jhbridges on Sun, 06 October 2013 14:46
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: hnielsen2 on Sun, 06 October 2013 23:43
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: hnielsen2 on Mon, 07 October 2013 00:49
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: hnielsen2 on Mon, 07 October 2013 19:34
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: hnielsen2 on Mon, 07 October 2013 20:33
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Hal StClair on Mon, 07 October 2013 21:51
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Francois on Mon, 07 October 2013 22:52
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Hal StClair on Mon, 07 October 2013 23:30
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: rcjordan on Mon, 07 October 2013 20:49
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: hnielsen2 on Mon, 07 October 2013 20:35
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: rallymaster on Tue, 08 October 2013 00:01
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: USAussie on Tue, 08 October 2013 13:03
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: Hal StClair on Tue, 08 October 2013 13:24
		Re: [GMCnet] "Bench Racing" the GMC - Modern propulsion By: JimGunther on Tue, 08 October 2013 13:46

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