FITECH fuel injection and header info

S

scott nutter1

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Sandy,
You will need the shortest adapter you can get. Alex Ferrera, MannyTranny, and Jim at Applied GMC will have them. Also you should get the bonnet/air
horn to replace the old air cleaner and run a hose to the front of the coach and put the air cleaner there. Good cold air.
Also Alex has a very nice throttle bracket for the manifold.
As far as headers, Jim K at Applied should have them. I went with Doug's headers. I don't know if they are different between engine sizes.
Scott.
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
installed MSD Atomic EFI
Houston, Texas
 
Headers we sell are Dougs, as they are designed to work well on both 455
and 403.
Ask us how to torque the bolts, otherwise you'll end up with a leaky gasket
soon.

> Sandy,
> You will need the shortest adapter you can get. Alex Ferrera, MannyTranny,
> and Jim at Applied GMC will have them. Also you should get the bonnet/air
> horn to replace the old air cleaner and run a hose to the front of the
> coach and put the air cleaner there. Good cold air.
> Also Alex has a very nice throttle bracket for the manifold.
> As far as headers, Jim K at Applied should have them. I went with Doug's
> headers. I don't know if they are different between engine sizes.
> Scott.
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
> installed MSD Atomic EFI
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Yes I do. I went with that MSD Atomic kit. I like that one because the computer module can be placed at a cooler location. Where I believe the Fitech
is built into the throttle body. And it can get pretty hot.
But at the same time, there are a lot of fitech's out there .
As far as the heads go, I don't really know much about the 403's. Sorry.
Scott.
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
installed MSD Atomic EFI
Houston, Texas
 
We always block the exhaust cross over to decrease the heat at the intake .
455 and 403 are very similar

> Yes I do. I went with that MSD Atomic kit. I like that one because the
> computer module can be placed at a cooler location. Where I believe the
> Fitech
> is built into the throttle body. And it can get pretty hot.
> But at the same time, there are a lot of fitech's out there .
> As far as the heads go, I don't really know much about the 403's. Sorry.
> Scott.
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
> installed MSD Atomic EFI
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Sandy,
What part of Texas are you at? We have a great GMC club in Texas. Several members have the 403's with the modifications you are planning to do
(headers,EFI,brakes, and AC blower).
It's called the GMC Classics. You can find the club info on the Internet. Great bunch of people who would love to share their knowledge and
installation experiences.
Scott.
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
installed MSD Atomic EFI
Houston, Texas
 
I had Gary check int this, where did you get the info?
Gary call the fatory and was told NO.

On Wed, Dec 26, 2018 at 11:03 AM Chris Tyler
wrote:

> Fitech recently added a spread bore version, so no adaptor needed
> --
> 76 Glenbrook
>
> _______________________________________________
> GMCnet mailing list
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>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Are you sure that it was FiTec? I have seen Spreadbore injector bodies for
Holley "Sniper" systems, but not for the FiTec.
If you are correct, it should fit the GMC motorhome without raising
the hatch cover up. That would make it a much more attractive package.
Now, if they would just use smaller injectors in the primaries, and
couple that with variable ignition timing, we could get some fuel economy
out of this deal as well as throttle response and vapor lock improvement. A
guy can wish.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

> Fitech recently added a spread bore version, so no adaptor needed
> --
> 76 Glenbrook
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
 
James H.:
Sounds like you should be a consultant to Fitek!!! Bet they could sell a lot of units to GMCers if set up properly for us and recommended by a GMC expert!!!
Mike/The Corvair a holic

76 Eleganza II 26’
76 Glenbrook 28’ stretch
78 Glenbrook 26’ project coach

Sent from my iPhone

>
> Are you sure that it was FiTec? I have seen Spreadbore injector bodies for
> Holley "Sniper" systems, but not for the FiTec.
> If you are correct, it should fit the GMC motorhome without raising
> the hatch cover up. That would make it a much more attractive package.
> Now, if they would just use smaller injectors in the primaries, and
> couple that with variable ignition timing, we could get some fuel economy
> out of this deal as well as throttle response and vapor lock improvement. A
> guy can wish.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>

>>
>> Fitech recently added a spread bore version, so no adaptor needed
>> --
>> 76 Glenbrook
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
The Holley EFI offers a spread bore system as a quadrajet in their Sniper EFI line.

https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_quadrajet/

JR Wright
GMC GreatLaker
GMCMI
GMC Eastern States
Michigan
On Location inTucson

>
> I had Gary check int this, where did you get the info?
> Gary call the fatory and was told NO.
>
> On Wed, Dec 26, 2018 at 11:03 AM Chris Tyler

>
>> Fitech recently added a spread bore version, so no adaptor needed
>> --
>> 76 Glenbrook
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Sandy,
I don't know if you can use the Edelbrock intake manifold without cutting and raising the hatch. Seems to me that when I was reading the installation
manuals (can't remember if it was the MSD or Fitech) they recommended not going with hard fuel lines.
Also maybe replace all your body pads. That will give you at least another 1/4 inch clearance at the hatch. And that could be big....
Scott.
BTW, we have a very knowledgeable GMC'er just a few miles north of you. I can get his number for you if you need...
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
installed MSD Atomic EFI
Houston, Texas
 
If it is a 455 you will need to mofify, 403, use the thinner adapter from us

> Sandy,
> I don't know if you can use the Edelbrock intake manifold without cutting
> and raising the hatch. Seems to me that when I was reading the installation
> manuals (can't remember if it was the MSD or Fitech) they recommended not
> going with hard fuel lines.
> Also maybe replace all your body pads. That will give you at least another
> 1/4 inch clearance at the hatch. And that could be big....
> Scott.
> BTW, we have a very knowledgeable GMC'er just a few miles north of you. I
> can get his number for you if you need...
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
> installed MSD Atomic EFI
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
When running the 403 or 455 with the carb on top the clearance is about the same with the stock manifold and the manifold sit down as compared to the
Edelbrock aluminum manifold which will raise the whole combination maybe 2+" above stock location. If you can get it under the engine cover it will
require an extremely short snorkle on the carb, EFIi or what ever you run to an external air cleaner assembly. I have see this done on a few
installation and you will also need to take a router to the hatch cover to clarence a few items. We own one of the Buskirk stretch coaches and the
body is raised up 2" by the use of aluminum spacers on every body cross member and spacers on the rubber body mounts. This allows the installation of
EFI type of induction without the problems of engine cover interference.
--
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
 
On a 403 the Elobrock does not raise the carb

> When running the 403 or 455 with the carb on top the clearance is about
> the same with the stock manifold and the manifold sit down as compared to
> the
> Edelbrock aluminum manifold which will raise the whole combination maybe
> 2+" above stock location. If you can get it under the engine cover it will
> require an extremely short snorkle on the carb, EFIi or what ever you run
> to an external air cleaner assembly. I have see this done on a few
> installation and you will also need to take a router to the hatch cover to
> clarence a few items. We own one of the Buskirk stretch coaches and the
> body is raised up 2" by the use of aluminum spacers on every body cross
> member and spacers on the rubber body mounts. This allows the installation
> of
> EFI type of induction without the problems of engine cover interference.
> --
> J.R. Wright
> GMC GreatLaker
> GMC Eastern States
> GMCMI
> 78 30' Buskirk Stretch
> 75 Avion Under Reconstruction
> Michigan
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
I put in the GM Howell system with spark control. I had no hatch clearance issues. And I can walk into any parts store for parts. Bob Dunahugh
 
The last statement is important, and it’s why I did the same.

I carry a spare ECU, Water Pump, Alternator and Starter.

The spare ECU was $10 at the local u-pull it.

The rest is literally immediately available (or overnight, and it’s not like you don’t have a place to sleep)

Dolph

DE AD0LF

Wheeling, West Virginia

1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Sullybilt Bags, Manny Transmission

“The Aluminum and Fiberglass Mistress"

>
> I put in the GM Howell system with spark control. I had no hatch clearance issues. And I can walk into any parts store for parts. Bob Dunahugh
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
However I’ve had a Howell system for many years (over 15) and I’ve never needed a spare part for it. It is very reliable. I’ve needed a module and a rotor for the distributor but that really wasn’t part of the Howell setup.

Emery Stora
77 Kingsley
Frederick, CO

>
> The last statement is important, and it’s why I did the same.
>
> I carry a spare ECU, Water Pump, Alternator and Starter.
>
> The spare ECU was $10 at the local u-pull it.
>
> The rest is literally immediately available (or overnight, and it’s not like you don’t have a place to sleep)
>
>
> Dolph
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 26’ ex-PalmBeach
> Howell EFI & EBL, Reaction Arms, Sullybilt Bags, Manny Transmission
>
> “The Aluminum and Fiberglass Mistress"
>

>>
>> I put in the GM Howell system with spark control. I had no hatch clearance issues. And I can walk into any parts store for parts. Bob Dunahugh
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
The Howell system, with the EBL, coupled with the GM throttle body with the
correct injectors for the displacement of the engine, and properly tuned,
is as reliable as any GM vehicle from that era.
ALMOST as reliable as an anvil, and about as hard to break. When the
aftermarket fuel injection systems have as much experience as GM does with
their systems, I suspect that they will have similar reliability.
They will probably never have the availability of GM when it comes to
sensors, etc. Only time will tell.
Nobody wants to be broken down beside the road, so, reliability is the
FIRST ORDER OF BUSINESS.
The same thing applies to any modification that you (or I) make to
your coaches, and is measured by that yardstick.
Jim Hupy
Salem, Oregon
78 GMC ROYALE 403

On Thu, Dec 27, 2018, 10:51 AM Emery Stora via Gmclist <

> However I’ve had a Howell system for many years (over 15) and I’ve never
> needed a spare part for it. It is very reliable. I’ve needed a module and
> a rotor for the distributor but that really wasn’t part of the Howell
> setup.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
> > On Dec 27, 2018, at 11:14 AM, Dolph Santorine

> >
> > The last statement is important, and it’s why I did the same.
> >
> > I carry a spare ECU, Water Pump, Alternator and Starter.
> >
> > The spare ECU was $10 at the local u-pull it.
> >
> > The rest is literally immediately available (or overnight, and it’s not
> like you don’t have a place to sleep)
> >
> >
> > Dolph
> >
> > DE AD0LF
> >
> > Wheeling, West Virginia
> >
> > 1977 26’ ex-PalmBeach
> > Howell EFI & EBL, Reaction Arms, Sullybilt Bags, Manny Transmission
> >
> > “The Aluminum and Fiberglass Mistress"
> >
> >> On Dec 27, 2018, at 12:46 PM, Bob Dunahugh

> >>
> >> I put in the GM Howell system with spark control. I had no hatch
> clearance issues. And I can walk into any parts store for parts. Bob
> Dunahugh
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
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>
>
> _______________________________________________
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>
 
Bounds was using hockey pucks as body pads. As a Canadian, I can tell you that hockey pucks are near hard as a rock, no give there!

Not sure what the issue is with metal fuel lines. I think they would last longer with ethanol and take the road debris better.

One thing I do know after 40+ years in electronics, is they don't like heat. The hotter the environment, the shorter their life. In the parts specs it
will show expected life vs operating temperatures. Automotive spec is -40 to +125C which is fine as long as air is flowing. Pull off the hyway to get
gas, shut engine off and its going to be much hotter on top of the engine.

Like Jim and Bob said, with a GM based system, you can get parts anywhere, but they are very reliable because the electronics are inside where its
cool.

JMHO
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
 
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