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Jun 14th, 2026
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Joined: May 2010
Posts: 29
Just Getting Started
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OP
Just Getting Started
Joined: May 2010
Posts: 29 |
A while back I was asking for information on air filters for TR3 equipped Plus Fours and recieved a lot of feedback, for which I was very thankful, but I wasn't completely happy with the idea of hurting the bonnet side panel. In the interm I also encountered a problem with manifold heat boiling off fuel in the float chambers during hot weather. After a bit of design work and some metal bashing I ended up with what I think are acceptable solutions for both issues. Here is a link to the page on my site that explains how the work was done. http://www.jackscars.net/morgan_intake_mods.html
Keeping the Faith With Private Services to Interesting British Automobiles * www.jackscars.net *
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Joined: Sep 2006
Posts: 7,363
Talk Morgan Guru
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Talk Morgan Guru
Joined: Sep 2006
Posts: 7,363 |
Very nice work Jack, an excellent modification done in 'period'. 
Brian
1970 Morgan Plus 8 - Moss Box (Indigo Blue)
2014 Morgan SP1 (Rocket Red)
2015 Morgan Plus 8 (Rocket Blue)
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Joined: Dec 2008
Posts: 22,356 Likes: 353
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,356 Likes: 353 |
Excellent solution Jack. Have you considered stub stacks inside the canister? is there enough room?
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: May 2010
Posts: 29
Just Getting Started
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OP
Just Getting Started
Joined: May 2010
Posts: 29 |
There is only about 3/4" clearance between the face of the front carb and the inside of the canister.
Turbulance at the carb opening is an issue but it isn't a deal breaker as far as performance is concerned. I wanted to use something like the inner canister plate out of a twin carb MGB as it is almost perfect in its shape to ease the air flow, but alas the Bs use 1-1/2" SUs and of course the TR motor uses 1-3/4" units.
Intake stacks are pretty chancy things anyway. You can use them on race motors but they have to be "tuned" in length for a specific course, cam profile, porting, et al. Shorter or longer according to the most used rev band for the event. They look cool but they do very little or nothing for general road use.
Anyway the old TR engines have so much torque anyway that messing around with stacks is a losing proposition. I was just trying to strain out the birds, rocks and road kill on this engine.
Keeping the Faith With Private Services to Interesting British Automobiles * www.jackscars.net *
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Joined: Jul 2007
Posts: 27,807 Likes: 749
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
Posts: 27,807 Likes: 749 |
Looks great 
JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
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Joined: May 2009
Posts: 2,190
South Wales Correspondent Talk Morgan Expert
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South Wales Correspondent Talk Morgan Expert
Joined: May 2009
Posts: 2,190 |
A while back I was asking for information on air filters for TR3 equipped Plus Fours and recieved a lot of feedback, for which I was very thankful, but I wasn't completely happy with the idea of hurting the bonnet side panel. In the interm I also encountered a problem with manifold heat boiling off fuel in the float chambers during hot weather. After a bit of design work and some metal bashing I ended up with what I think are acceptable solutions for both issues. Here is a link to the page on my site that explains how the work was done. http://www.jackscars.net/morgan_intake_mods.html jack, Nice thinking and a very attractive solution regards, G
GLLHG
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