Need suggestion on fuel injection fuel pump

B

bob schilling

New member
Jul 18, 2013
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Hello everyone, Recently I have been helping a newbie get a coach running that has been setting for 7 years. The new owner is temporarily overseas and
we have been communicating frequently with questions that he has. He has decided to replace the quadrajet with FItech fuel injection and is wondering
what type of fuel pump set up he should use. I have the FItech on my coach and have a low pressure fuel pump in each tank and a high pressure frame
mounted inline pump. I'm not sure he needs all the redundancy. I am hoping to get the opinions of those that know way more than I do. A little more
information on the coach it is a 78 Birchhaven with actual documented 23,000 miles. It has the 403 with the original distributor. Any and all help is
greatly appreciated. I am also encouraging the new owner to join this community. Hopefully that will happen soon. Thanks in advance for your help. By
the way, I love my FITech system.
--
Bob and Pam Schilling
Rapid City, SD
"78 Royale
 
I guess you've seen Jerry Work's presentation on it?
http://bdub.net/FiTech_is_the_Real_Deal.pdf

bdub

> Hello everyone, Recently I have been helping a newbie get a coach running
> that has been setting for 7 years. The new owner is temporarily overseas and
> we have been communicating frequently with questions that he has. He has
> decided to replace the quadrajet with FItech fuel injection and is wondering
> what type of fuel pump set up he should use. I have the FItech on my coach
> and have a low pressure fuel pump in each tank and a high pressure frame
> mounted inline pump. I'm not sure he needs all the redundancy. I am hoping
> to get the opinions of those that know way more than I do. A little more
> information on the coach it is a 78 Birchhaven with actual documented
> 23,000 miles. It has the 403 with the original distributor. Any and all
> help is
> greatly appreciated. I am also encouraging the new owner to join this
> community. Hopefully that will happen soon. Thanks in advance for your
> help. By
> the way, I love my FITech system.
>
 
Hello everyone, Recently I have been helping a newbie get a coach running that has been setting for 7 years. The new owner is temporarily overseas and
we have been communicating frequently with questions that he has. He has decided to replace the quadrajet with FItech fuel injection and is wondering
what type of fuel pump set up he should use. I have the FItech on my coach and have a low pressure fuel pump in each tank and a high pressure frame
mounted inline pump. I'm not sure he needs all the redundancy. I am hoping to get the opinions of those that know way more than I do. A little more
information on the coach it is a 78 Birchhaven with actual documented 23,000 miles. It has the 403 with the original distributor. Any and all help is
greatly appreciated. I am also encouraging the new owner to join this community. Hopefully that will happen soon. Thanks in advance for your help. By
the way, I love my FITech system.
--
Bob and Pam Schilling
Rapid City, SD
"78 Royale
============
 
Bob.
I like the redundancy that you noted for a number of reasons. Pumps in the tanks are...IMO...the best way to reduce the potential effects of vapor
lock. Put pumps in the tanks and you always have a back-up with the switch on the dashboard should one or the other pump give out. While the tanks are
down for that upgrade, put steel line from the tank to the frame and you may never have to take the tanks down again. Personally I do not like the
frame mounted high pressure pump. They can be very noisy especially in warm/hot weather. (just my experience). i have the high pressure pumps in the
tanks and fuel pressure regulator mounted on the frame just in front of the reserve tank, with return fuel to the reserve tank drain plug, all steel
line up to the engine, and a short piece of rubber ethanol resistant fuel injection hose between the frame and the engine to allow for engine torque
movement. I put the regulator back at the tank so that fuel would not travel to the engine, get heated up from engine heat and then return hot gas to
the tank...only exacerbating potential vapor lock. Fuel comes out of the tank under high pressure, goes though the regulator, with excess fuel going
directly back to the tank cold, not traveling more than 4 or 5 ft. IMO always return the excess fuel to the reserve tank. That way you always know
what you've got for fuel reserves.

Just my relatively informed, off the cuff, back yard mechanic, gut level, eyeball it up and guestimate, opinion....that's all...
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
 
> Hello everyone, Recently I have been helping a newbie get a coach running that has been setting for 7 years. The new owner is temporarily overseas
> and we have been communicating frequently with questions that he has. He has decided to replace the quadrajet with FItech fuel injection and is
> wondering what type of fuel pump set up he should use. I have the FItech on my coach and have a low pressure fuel pump in each tank and a high
> pressure frame mounted inline pump. I'm not sure he needs all the redundancy. I am hoping to get the opinions of those that know way more than I do.
> A little more information on the coach it is a 78 Birchhaven with actual documented 23,000 miles. It has the 403 with the original distributor. Any
> and all help is greatly appreciated. I am also encouraging the new owner to join this community. Hopefully that will happen soon. Thanks in advance
> for your help. By the way, I love my FITech system.

Kelvin Dietz has a GMC Fitech group on Facebook that might be of interest.
GMC Motorhome FiTech EFI
--
Wally Anderson
Omaha NE
75 Glenbrook
Megasquirt III injection
Bob Stone hydroBOOOOST
Manny reaction arm system
Branscombe Kelsey Hayes park brake
http://wallyandsue.blogspot.com/
 
> Hello everyone, Recently I have been helping a newbie get a coach running that has been setting for 7 years. The new owner is temporarily overseas
> and we have been communicating frequently with questions that he has. He has decided to replace the quadrajet with FItech fuel injection and is
> wondering what type of fuel pump set up he should use. I have the FItech on my coach and have a low pressure fuel pump in each tank and a high
> pressure frame mounted inline pump. I'm not sure he needs all the redundancy. I am hoping to get the opinions of those that know way more than I do.
> A little more information on the coach it is a 78 Birchhaven with actual documented 23,000 miles. It has the 403 with the original distributor. Any
> and all help is greatly appreciated. I am also encouraging the new owner to join this community. Hopefully that will happen soon. Thanks in advance
> for your help. By the way, I love my FITech system.
I would make it easy on myself and get the FiTech Fuel Command Center so it is then plug and play. In a pinch, you can reinstall the carb to get
moving.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"Highest price does not guarantee highest quality."
 
Thanks Jerry, I was hoping to here your suggestion. I'll pass it on.
--
Bob and Pam Schilling
Rapid City, SD
"78 Royale
 
Thanks to all who have offered advice. I will pass it on to the newbie and hopefully it will make his decision easier.
--
Bob and Pam Schilling
Rapid City, SD
"78 Royale
 
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