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By DANIEL TINDER - 9 Years Ago
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Pardon my ignorance, but I am wondering if anyone has tried to adapt the earlier 55-56 T-Bird aircleaner (or a dry-element repro) to the later wide pattern Holley/Autolite carb? Would it be too tall to clear the hood, or are there other features that preclude?
Also, while totally eliminating the manifold exhaust heat (Mummert manifold, block-off plates, etc.) would undoubtedly increase hot weather performance (cooler mixture), I wonder if that might lead to carb icing/stalling in sub-freezing winter driving conditions, or has ethanol fuel possibly eliminated that issue?
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By miker - 9 Years Ago
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Daniel, I've got the dry type repo on an AFB style, same throat size as a Holley. Send me a pm with your email, I'll send the pictures and a brief explaination.
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By paul2748 - 9 Years Ago
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Any 57 TBird air cleaner will fit a later Holley, Edelbrock or Autolite carb. The top part is similar to the 55/56 style. It is a low profile air cleaner so you shouldn't have any clearance problems.
As far as the heat passage in the intake, there is an intake gasket with a smaller hole it it. This reduces the heat.
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By DANIEL TINDER - 9 Years Ago
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As far as the heat passage in the intake, there is an intake gasket with a smaller hole it it. This reduces the heat.
Not really to my point. Anyone out there with a Mummert intake or block-off plates who drives in sub-freezing weather using gasohol with no stalling issues?
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By miker - 9 Years Ago
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I'm running a couple of Blue Thunder manifolds blocked off. Never had an icing problem, but I'm not often out in cold weather. Really cold isn't the problem, it's a factor of temp and relative humidity. Since alcohol or ethanol has a higher evap rate than gasoline, my guess it's worse, but I don't know.
Here's an aviation chart, icing being a serious concern, and carb heat being manually controlled in light aircraft.
https://www.aopa.org/training-and-safety/air-safety-institute/accident-analysis/featured-accidents/epilot-asf-accident-reports-carburetor-what
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By DANIEL TINDER - 9 Years Ago
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Guess I should just accept that manifold heat appears to be an obsolete concept (?). It's only that I like having an all weather (excepting deep snow, of course) backup vehicle. The small amount of exhaust heat that enters the tiny hole in my truck-type intake gasket may or may not be effecting the Bird's cold weather reliability. I just hate to gamble with changing what works.
This issue only came up because I occasionally see good 'B' iron manifolds for sale cheap. I had always planned to install an aluminum Mummert when completing my backup motor, but if the lack of carb. heat limits me to warm weather driving, I might decide to save a few bucks and tolerate the extra weight.
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By charliemccraney - 9 Years Ago
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Blue thunder is still an option if you want to retain that feature and have a very good, light, aftermarket manifold.
I also would like to know if anyone has a Mummert or original blocked off and drives year round, in all conditions. I might try blocked off gaskets one day, but it probably won't be any time soon.
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By stuey - 9 Years Ago
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Hi Daniel
Forgive my ignorance but is this a water heated spacer?
IoAAOSwqfNXmLYt&vxp=mtr">IoAAOSwqfNXmLYt&vxp=mtr">http://www.ebay.com/itm/FORD-390-Carb-Spacer-Plate-AUTOLITE-4-barrel-Galaxie-MUSTANG-FAIRLANE-Torino-GT-/361663181160?hash=item5434ce3168:g IoAAOSwqfNXmLYt&vxp=mtr
stuey
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By 57RancheroJim - 9 Years Ago
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stuey (8/11/2016)
Hi Daniel Forgive my ignorance but is this a water heated spacer? IoAAOSwqfNXmLYt&vxp=mtr"> IoAAOSwqfNXmLYt&vxp=mtr">http://www.ebay.com/itm/FORD-390-Carb-Spacer-Plate-AUTOLITE-4-barrel-Galaxie-MUSTANG-FAIRLANE-Torino-GT-/361663181160?hash=item5434ce3168:g IoAAOSwqfNXmLYt&vxp=mtr stuey Yes, but that model won't work on a Y block due to the open area for the PCV port. I don't know of any way to seal it against the manifold..
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By PWH42 - 9 Years Ago
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I have a B manifold with the heat passage completely blocked.I drive the car year-around,as long as the roads are not snow covered.This is in temperatures ranging from low teens to low 100s.I've never had any problem with icing(or overheating either).I've driven it this way for almost 20 years.It's a bone stock 292 in a 56 Fairlane.
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By DryLakesRacer - 9 Years Ago
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My 56 with the stock intake would boil the fuel when I changed to a Carter WCFB small base carb. The fuel is not stored up top like a early Holley. I added a 3/8" mycarda plate and it was still to hot. I used the crossover internal choke tube for the choke release so I wanted to keep the manifold heat and I know its good for fuel atomization. Next I wired open the exhaust flapper on the passenger side, it was very free and the gasoline boiling went away. When I changed intakes I replaced the gaskets with the metal restriction. To me it is NOT a small hole. It is about 1/2" in diameter and the heat choke works perfectly. Good Luck
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By DANIEL TINDER - 9 Years Ago
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I assume Paul's 'bone stock' '56 292 with the blocked-off 'B' manifold must be running a carb with elect., manual, or exhaust-heat choke setup (?), since likely only exclusive summertime drivers could get away with no choke heat (even in Missouri).
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By PWH42 - 9 Years Ago
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Daniel,believe it or not,I don't have any choke on my car.I guess I lied a little about"bone stock".I do have a 4100 Autolite carburetor and Pertronix ignition.A couple of pumps of the foot feed and it fires right up,even in cold weather.Below freezing,I have to wait a minute before taking off.
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By DANIEL TINDER - 9 Years Ago
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Very interesting. I was planning to purchase an electric choke kit for whatever carb I ended up with (4150?). I should likely wait to see if I will really need it. At worst, I could wire a switch into the choke circuit so the drain on my 6v system (generator/OD) is minimized in summer, especially when running with the brights at night.
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By charliemccraney - 9 Years Ago
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I don't use the choke either and it gets into the single digits here. I think a good tune and strong battery are key for that. If anything is off, you will probably have difficulty starting.
My ignition contributed greatly to that. It is an aftermarket, inductive discharge system. It made it much less cold natured vs the previous points system, which I thought was better than my previous Pertronix system.
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