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weber intake thermostat or external
I am in the planning stage of the intake for a 289 FIA and have noticed that there are two variations on the intake manifold for weber induction. One with the thermostat in the intake and the other with an external.
I believe that the external is period correct (is this right?). Are there any pros or cons to which setup to use? Marc-Alan |
Here you go, for sale, the entire small block setup, ready to bolt on, new, polished, chromed, complete from Inglese:
http://www.clubcobra.com/photopost/d...Webers_009.jpg Alan Sorkey Shreveport, LA |
The original FIA used a simple restrictor (with the manifold pictured above) - no thermostat at all - but I don't recommend that for street use. I've fabricated an in-line thermostat that mounts in between the water manifold and the radiator. The manifold with the thermostat housing built-in is a little cleaner installation, and, since the thermostat is right at the engine, probably holds temperature closer to ideal. It's hard to beat the look of the external manifold, though. :cool:
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Thermostat in the manifold
I used the manifold with the thermostat (GT 350 type) to leave room for the tach drive distributor that I use.
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The External looks right. I'll Try to find a better pic for ya. Look up & call Wilson Manifolds. They sell the inline housing as on my car(upper right of pic)
http://www.clubcobra.com/photopost/d...edium/FIAR.jpg |
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I've used an in-line from a Ford 8n tractor as well for the same type of set up. No kidding it actually works! You may not want to tell anyone else that you have a tractor part on your Cobra but at least it's a Ford part! LOL
Steve |
I am strongly considering reducing the Outside Diameter of a Robert Shaw Brass balanced thermostat by removing the majority of the outer flat surface and fit it inside the upper hose at the entrance to the radiator, If it works which I believe it will, it will be unnoticable and work as if it were in the manifold.
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Rick, that's how the 8n thermostat works.
Steve |
First off, thanks everyone for their responses.
Steve, could you please post a picture of the 8n thermostat? Bob thanks for the background information, I couldn't find a reference. What does the ERA part that you fabricated cost? Hyde, I will call Wilson Manifolds later Marc-Alan |
I think this is the way to go. (Less work for me...)
Ford B2NN-8575A, about $25 Does anyone know what the diameter this housing is? http://www.ytmag.com/store/parts/pics/wm_181634M1.jpg |
What year and model does the above Ford thermostat fit? I tooh a thermostst for a 2001 Ford Escort, ground the flange flat and tack welded it between 2 pieces of 1 1/2 stainless tubing to fit inside the hose.
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That's the tractor thermostat, mentioned above.
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Hyde - nice covers for the webers. Where did you get them?
again nice set-up!!! . |
Thank you lovehamr. I will pick one up tomorrow, I love it when a plan comes together.
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Gotta Make em yourself;) I did a lot of eye ballin' & estimatin'. Found me a decent set of used covers, bought the breathers to figure the diameter of the stacks. Then started patchin', cuttin' templaten':3DSMILE: They turned out pretty decent. A quality welder would probably cuss me out a few times for my lack of clean welding but i figure these probably were made for racing & not so much for beauty back then anyhow%/
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I picked up one of the above thermostats this AM. It is a New Holland part #(Bob posted the # above). I paid a little over $18.00 for it. The major diameter at one of the joints is just over 1.500" so it should fit in the upper hose comfortably. I quizzed the counterman about the HP/vintage of the tractor that uses it. He said 1940ish 25 HP!. That being said I hope the opening is not too restrictive. The last thing I want at this point is a motor that is going to overheat. One small concern is that it is a 160 degree opening. I was told there is no alternate. I have a 180 thermostat in the engine now and really have no desire to make it run cooler. Maybe I am thinking too hard???
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I'd be a bit scared too! Only one way to find out;)
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A source for the thermostats referenced by Bob is:
Davis Tractor Parts - Ford 8N Dept 24263 Antioch Road Andalusia, AL 36421 Phone: 334-222-7214 Fax: 334-222-0025 Email: dtp@alaweb.com http://www.ford8n.com Jim PS: I drove around this past weekend in my FIA without the thermostat and the temp gauge barely moved and the oil temp didn't move at all. I'm going to try the tractor part and I'll report back. |
I found the 160 degree temp too cool for my liking. There are some standard thermostats available that are the correct small diameter (1 1/2 inches), that are packaged by Stant and others that are 185 degree rating. They can be put inside the top hose and butted up against the end of a connector tube to keep them in place, or a short length of stainless tubing can be tack welded to it to make it more substantial. Some have a rubber ring around the outside that has to be removed before use.
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