TR3A Air vent under grille on Race Cars?

[karls59tr]

I'm interested in installing a vent in the bottom part of the apron below the grille on my TR3 similar to what is seen on TR3 racers. Does anyone know of a source for these?

 

[dougie]

I'm interested in installing a vent in the bottom part of the apron below the grille on my TR3 similar to what is seen on TR3 racers. Does anyone know of a source for these?

I'm not familiar with any "vent" on the bottom part of the front shroud or "apon" on a TR3 racer. Tim Suddard, editor of Classic Motorsports races a TR3 and he has an oil cooler mounted below his grill.

https://classicmotorsports.com/project-cars/1957-triumph-tr3/

 

[karls59tr]

I should have mentioned that I was referring to the later TR3's that have the wider grill. On those cars the lower part of the apron blocks about 1/3 of the air flow to the rad so a vent is often added there.

 

[billspohn]

Not really necessary for cooling - the intake size is normally a fraction of the core area and functions just fine. Important to ensure good shrouding to the radiator, though.

 

[GTP1960]

Don't know if this is what you had in mind, but this is what I did ( from blog entry):

https://www.britishcarforum.com/bcf/entry.php?198-Cold-ram-air-intake-(poor-mans-version)

BTW: Geo Hahn fashioned a below the apron deflector on his 3. He's posted pics before.

 

[Geo Hahn]

What I use:

Does it really help - maybe. But I live in a very hot place where 'maybe' is a good enough reason to try something that may help the engine keep its cool.