[Fot] Fuel injection

[TeriAnn J. Wakeman]

On 7/28/23 12:48 PM, J.C. Hassall wrote:
> After they said that they had no stock and were out of production, I 
> asked if they'd send a copy of the engineering drawing.  Um, no, it 
> was only on paper.  And apparently no one there oowns a cell phone 
> with camera.  :-p
>
> Are you offering to trace your backplate?  :-)

Only as a last possibility. I'm working on 3 projects that are taking 
all my time & energy. If you have a way to get them produced in hand & 
no other source for a pattern, I can remove mine, go out & buy a big 
sheet of paper, trace it then mail you the tracing. I expect to have 
more time in a couple months.

TeriAnn

>
> jim
>
> On Fri, Jul 28, 2023 at 2:39 PM TeriAnn J. Wakeman 
> <tjwakeman at gmail.com> wrote:
>
>     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
>>
>
>
>
> -- 
> jim W4BEA


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