Offy heating plate
Postmaster
Joined: Dec 2006
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From: Spokane, WA
http://i144.photobucket.com/albums/r...Picture035.jpg
http://i144.photobucket.com/albums/r...Picture027.jpg
http://i144.photobucket.com/albums/r...Picture026.jpg
Use 3/8-1/2 aluminum plate. A bit nicer job can be done using brass fittings rather than pipe fittings.
Running the water heat/coolant provides for better atomization and stabilizes temperatures in the induction system regardless of the weather.
http://i144.photobucket.com/albums/r...Picture027.jpg
http://i144.photobucket.com/albums/r...Picture026.jpg
Use 3/8-1/2 aluminum plate. A bit nicer job can be done using brass fittings rather than pipe fittings.
Running the water heat/coolant provides for better atomization and stabilizes temperatures in the induction system regardless of the weather.
Posting Guru
Joined: May 2007
Posts: 1,208
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From: North Reading Mass
I prefer the hot air system myself. Years ago I put on an after market header and intake eliminating the heat riser on a old AMC 258 I used a temperature controlled air cleaner to feed 80 deg air to the carb. Had no issues and I live in New England.
One of the mods that the GM LT1 boys like to do is to bypass the coolant to the TB to lower intake temps.
regards
rikard
One of the mods that the GM LT1 boys like to do is to bypass the coolant to the TB to lower intake temps.
regards
rikard
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From: Indiana
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A question - does the Offenhauser intake have a small chamber molded in at the base that the warm coolant collects in?
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
Yes, but it does not come with the plate and fittings to connect your heater lines to it. You have to make it yourself. Harte3 posted photos of the one he made for it.
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Yeah, i figured that much out. 
Just didn't know if the fittings on his plate terminated at the outside of the intake and just conducted heat through contact with the intake or if the intake actually had an uncapped 'resevoir' you could pump coolant into.
Thanks for the reply.
Just didn't know if the fittings on his plate terminated at the outside of the intake and just conducted heat through contact with the intake or if the intake actually had an uncapped 'resevoir' you could pump coolant into.
Thanks for the reply.
