<div dir="ltr">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<div><br></div><div>Are you offering to trace your backplate? :-)</div><div><br></div><div>jim</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 28, 2023 at 2:39 PM TeriAnn J. Wakeman <<a href="mailto:tjwakeman@gmail.com">tjwakeman@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div>On 7/28/23 10:22 AM, J.C. Hassall
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi TeriAnn,
<div><br>
</div>
<div>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.</div>
</div>
</blockquote>
<p>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.</p>
<p>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.<br>
</p>
<p>TeriAnn</p>
<p><br>
</p>
<img src="cid:1899e0895edc19356f41"><br>
<blockquote type="cite">
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Jul 28, 2023 at
11:39 AM TeriAnn J. Wakeman via Fot <<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Here
are a couple of possible resources for people trying to piece
<br>
together an EFI system with a focus for TR3-4A engines.<br>
<br>
Before TWM went out of business they offered DCOEs, intake
manifolds, <br>
and major EFI conversion components, including throttle bodies
based up <br>
the DCOE configuration.<br>
<br>
When TWM went out of business they sold their EFI business or
<br>
transformed into Borla Induction<br>
<br>
<a href="https://www.borlainduction.com" rel="noreferrer" target="_blank">https://www.borlainduction.com</a><br>
<br>
Who produces the DCOE based throttle bodies and other major
EFI components.<br>
<br>
TWM sold their intake manifold business to Pierce Manifolds,
who still <br>
offers the TWM DCOE conversion kit for the TR four.<br>
<br>
<a href="https://www.piercemanifolds.com/TRIUMPH_TR3_TR4_HIGH_PORT_WEBER_40_DCOE_p/k131.htm" rel="noreferrer" target="_blank">https://www.piercemanifolds.com/TRIUMPH_TR3_TR4_HIGH_PORT_WEBER_40_DCOE_p/k131.htm</a><br>
<br>
So you can still get the manifolds, linkage, EFI throttle
bodies, <br>
position sensors & such, all originally designed to work
together as a <br>
system.<br>
<br>
itg makes an air filter with holes properly spaced for the TR
four using <br>
TWM/Pierce manifolds and DCOEs or TWM/Borla throttle bodies.
The <br>
critical component is the back plate which I don't think is
still being <br>
mentioned in their web site. If you want to use a itg air
filter (I have <br>
one on my TR3 with TWM manifolds & DCOEs) ask for back
plate part number <br>
28-JC-50.<br>
<br>
itg has a formula (for their filters only) that calculates the
minimum <br>
distance between the horn opening and the facing element for
no negative <br>
affect in air flow. The minimum distance is calculated by
dividing the <br>
inner diameter of the air horn by four.<br>
<br>
I think this is probably enough to piece together a mechanical
fuel <br>
injection system & put an air filter on it. No idea about
a computer to <br>
add the "E".<br>
<br>
TeriAnn</blockquote>
</div>
</blockquote>
<br>
</div>
</blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><span style="color:rgb(0,0,0);font-family:arial,helvetica,sans-serif;background-color:rgb(250,250,251)">jim W4BEA</span></div></div></div></div></div></div></div></div></div></div>