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| Re: [GMCnet] How many people are still running Carb or EFI [message #220965 is a reply to message #220962] |
Mon, 02 September 2013 22:04   |
Guy Lopes
Messages: 499
Registered: April 2004
Location: Sacramento, CA
Karma: 3
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Senior Member |
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Rick,
I'm curious, do you have cast iron exhaust manifolds or headers?
Thanks,
Guy Lopes
76 Birchaven "Orion"
Sacramento, CA
www.GMC-Guy.com
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Richard Michelhaugh
Sent: Monday, September 02, 2013 7:58 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] How many people are still running Carb or EFI
Stock carb 455 with Rockwell aluminum manifold and 3 in exhaust. 9.7 mpg on
7000 mile trip from Tenn to Wash State and back this summer. no vapor lock
problems, knock on wood.
Rick M.
--
1974 26' Canyonlands
aka "The General"
Clinton, TN
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Guy Lopes
76 Birchaven "Orion"
Sacramento, CA
W6TOL
www.GMC-Guy.com
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| Re: How many people are still running Carb or EFI [message #220987 is a reply to message #220826] |
Tue, 03 September 2013 07:51 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Anybody running megasquirt?
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: How many people are still running Carb or EFI [message #221027 is a reply to message #221023] |
Tue, 03 September 2013 12:59 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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| gbarrow wrote on Tue, 03 September 2013 10:12 |
Stock carb on two coaches both with 455.
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455 with EFI and EBL. We have about 58k miles on the EFI. Of course the current coache had gone 200k who without so they both work.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: How many people are still running Carb or EFI [message #221423 is a reply to message #220826] |
Sat, 07 September 2013 00:54 |
jturbo
Messages: 76
Registered: August 2013
Location: Socal
Karma: 1
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So it seems many are still sticking with Carb from the Poll.
Is this due to cost ???
Or hard to install?
Of the people who do have EFI how many have done the Rockwell instake?
1978 Royal 403
1977 Birchaven 455
1977 Kingsley 455
All under Upgrading and restoration
Rosemead California
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| Re: How many people are still running Carb or EFI [message #221429 is a reply to message #220826] |
Sat, 07 September 2013 01:28 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
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Carb for the time being, but TBI when I get everything ready to make the change over.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
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| Re: How many people are still running Carb or EFI [message #221591 is a reply to message #221423] |
Sun, 08 September 2013 07:13 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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| jturbo wrote on Fri, 06 September 2013 22:54 |
So it seems many are still sticking with Carb from the Poll.
Is this due to cost ???
Or hard to install?
Of the people who do have EFI how many have done the Rockwell instake?
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I notice you are in California and have two '77 coaches. I tried mightily to get CA to let me smog a '78 with EFI. I took it to a referee at a Jr. College. The long and shot was they would not put it the dyno because (if I understand everything and no one can) even though TBI was used on a zillion 454 GM engines there was never a TBI for an Olds 455.
I believe is I were to put a newer engine, perhaps a Vortec such as Dave Lenzi installed, it would be given a new sticker and need to pass smog as it would in it's original vehicle. So, I am of the opinion, don't do anything until you get clearance. The kit or whatever needs an Executive Order from CARB. Howle has it for a Jeep but not the GMC, unless they recently cleared that hurdle.
If they did it would be for the original without EBL and spark control. CA does not want us fiddling with the mixture and spark. The referee said he knew it was making less smog but couldn't test it.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] How many people are still running Carb or EFI [message #221598 is a reply to message #221423] |
Sun, 08 September 2013 08:10 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Well, my carb has been rebuilt somewhere along the line and works. As long as I can still get Decent Gas, I see no need to add to the complexity of the coach. Mileage is reported as improving to 8-10 on the injected engines, up from 8-10 for the carbureted ones. There simply isn't any upside for me.
When the State of GA in its infinite stupidity outlaws proper gasoline, I'll revisit the systems. Hopefully, by that time, somebody will have turned out a port ready manifold, sensors, and computer to run it. I wonder if you could derive crank angle and cam position from a distributor with a tone wheel in it... Or KISS using something similar to VW's CIS or CIS-E, which gets the bulk of benefit from port injection fairly cheaply. (I'm full of ideas for someone else to implement)
--johnny
'76 23' transmode Norris
'76 palm beach
--------------------------------------------
On Sat, 9/7/13, john <tg16jturbo@mac.com> wrote:
Subject: Re: [GMCnet] How many people are still running Carb or EFI
To: gmclist@temp.gmcnet.org
Date: Saturday, September 7, 2013, 5:54 AM
So it seems many are still sticking with Carb from the
Poll.
Is this due to cost ???
Or hard to install?
Of the people who do have EFI how many have done the
Rockwell instake?
--
1978 Royal 403
1977 Birchaven 455
1977 Kingsley 455
All under Upgrading and restoration
Rosemead California
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] How many people are still running Carb or EFI [message #239112 is a reply to message #221598] |
Fri, 07 February 2014 16:20 |
mikethebike
Messages: 331
Registered: January 2014
Karma: 0
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Senior Member |
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A friend of mine I worked with at AT&T built a Factory-5 Cobra replica and after 2 years or so located an aftermarket EFI system that uses all Ford parts and electronics. The throttle body bolts to the intake just like a carb so you get to use a stock A/C assembly. It is a slick system and the little 302 goes like scalded stink. Parts are readily available, low in cost and reliable. It was the upfront cost that will make you cry....$3500 or so!! I'll call him next chance I get and get the name of the company.
| Johnny Bridges wrote on Sun, 08 September 2013 08:10 |
Well, my carb has been rebuilt somewhere along the line and works. As long as I can still get Decent Gas, I see no need to add to the complexity of the coach. Mileage is reported as improving to 8-10 on the injected engines, up from 8-10 for the carbureted ones. There simply isn't any upside for me.
When the State of GA in its infinite stupidity outlaws proper gasoline, I'll revisit the systems. Hopefully, by that time, somebody will have turned out a port ready manifold, sensors, and computer to run it. I wonder if you could derive crank angle and cam position from a distributor with a tone wheel in it... Or KISS using something similar to VW's CIS or CIS-E, which gets the bulk of benefit from port injection fairly cheaply. (I'm full of ideas for someone else to implement)
--johnny
'76 23' transmode Norris
'76 palm beach
--------------------------------------------
On Sat, 9/7/13, john <tg16jturbo@mac.com> wrote:
Subject: Re: [GMCnet] How many people are still running Carb or EFI
To: gmclist@temp.gmcnet.org
Date: Saturday, September 7, 2013, 5:54 AM
So it seems many are still sticking with Carb from the
Poll.
Is this due to cost ???
Or hard to install?
Of the people who do have EFI how many have done the
Rockwell instake?
--
1978 Royal 403
1977 Birchaven 455
1977 Kingsley 455
All under Upgrading and restoration
Rosemead California
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http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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