[Fot] TR3 using TR4A manifold

[Randy and Valerie DeRuiter]

Greg-

I don't have a picture anymore but when I did this I used an AN right angle bulkhead fitting.  They seem harder to find now but I think part is AN848-6D for a 3/8" hose ID.   Here is one for 1/2" hose to give you the idea:

https://www.bandbaircraftsupplies.com/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=17180&category_id=12&vmcchk=1&option=com_virtuemart&Itemid=73&redirected=1&Itemid=73

I reused an old bulkhead fitting for the attachment flange, just as easy to fabricate the mount out of some thin sheet stock.

Randy
________________________________
From: Fot <fot-bounces at autox.team.net> on behalf of Greg Blake via Fot <fot at autox.team.net>
Sent: Sunday, August 3, 2025 5:33 PM
To: Fot <fot at autox.team.net>
Subject: [Fot] TR3 using TR4A manifold

Howdy folks. Have a street car question for yall. Assembly of Will’s car continues and I was test fitting the carbs and manifold I was planning to use. It’s a TR4A intake paired with HS6s. This is what I use on the TR3 race car. On the street car, the rear float is very close to the heater bulkhead fitting (see pictures). Has anyone done this on a street car and have a good solution to this interference? It looks like we could move the bulkhead fitting over by about 3-4” w/o issue, just hate to put another hole in the firewall.

Appreciate ideas.
[cid:95e5e177-f581-41ba-abbe-8b0ff53bd520 at NAMP222.PROD.OUTLOOK.COM]
[cid:180c45a4-25d6-4988-a011-91d19d2c79f2 at NAMP222.PROD.OUTLOOK.COM]
[cid:cf634f79-c5b2-4fa6-83e6-0f01e090e7cc at NAMP222.PROD.OUTLOOK.COM]

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