[Fot] Fuel injection

[TeriAnn J. Wakeman]

On 7/28/23 10:22 AM, J.C. Hassall wrote:
> Hi TeriAnn,
>
> That's great info, very extensive.  Months ago I asked ITG UK if they 
> had one in stock (NLA in the "colonies").  They said that they had no 
> stock (last sale was 14 years ago), so it would be bespoke and cost 71 
> UK pounds plus carriage, etc. Needless to say I declined.

I bet they have the pattern on file. It is just a sheet of aluminum with 
holes drilled in it. They should be able to make them up on demand 
cheaper than that. But maybe they have a min. price for specials.

At worst someone could just trace their back plate and hand it to 
someone who has the special tools to cut one or more out.

TeriAnn



> On Fri, Jul 28, 2023 at 11:39 AM TeriAnn J. Wakeman via Fot 
> <fot at autox.team.net> wrote:
>
>     Here are a couple of possible resources for people trying to piece
>     together an EFI system with a focus for TR3-4A engines.
>
>     Before TWM went out of business they offered DCOEs, intake manifolds,
>     and major EFI conversion components, including throttle bodies
>     based up
>     the DCOE configuration.
>
>     When TWM went out of business they sold their EFI business or
>     transformed into Borla Induction
>
>     https://www.borlainduction.com
>
>     Who produces the DCOE based throttle bodies and other major EFI
>     components.
>
>     TWM sold their intake manifold business to Pierce Manifolds, who
>     still
>     offers the TWM DCOE conversion kit for the TR four.
>
>     https://www.piercemanifolds.com/TRIUMPH_TR3_TR4_HIGH_PORT_WEBER_40_DCOE_p/k131.htm
>
>     So you can still get the manifolds, linkage, EFI throttle bodies,
>     position sensors & such, all originally designed to work together
>     as a
>     system.
>
>     itg makes an air filter with holes properly spaced for the TR four
>     using
>     TWM/Pierce manifolds and DCOEs or TWM/Borla throttle bodies. The
>     critical component is the back plate which I don't think is still
>     being
>     mentioned in their web site. If you want to use a itg air filter
>     (I have
>     one on my TR3 with TWM manifolds & DCOEs) ask for back plate part
>     number
>     28-JC-50.
>
>     itg has a formula (for their filters only) that calculates the
>     minimum
>     distance between the horn opening and the facing element for no
>     negative
>     affect in air flow. The minimum distance is calculated by dividing
>     the
>     inner diameter of the air horn by four.
>
>     I think this is probably enough to piece together a mechanical fuel
>     injection system & put an air filter on it. No idea about a
>     computer to
>     add the "E".
>
>     TeriAnn
>
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