406mac Posted April 25, 2021 Share Posted April 25, 2021 Any ideas on this intake...I was told it was for a "blown flathead"....but I'm not sure how that would work....locations for 4 carbs.....large circular opening in the base....thanks for any help..... Link to comment Share on other sites More sharing options...
Mark Wetherbee Posted April 26, 2021 Share Posted April 26, 2021 By “blown” was he thinking supercharger? It would be my guess anyhow... Link to comment Share on other sites More sharing options...
406mac Posted April 26, 2021 Author Share Posted April 26, 2021 The guys at The Flat Spot supplied more information...it is for a front mounted supercharger....the large hole on the underside is ducted to a supercharger....the front is an air vent.....the carbs work as usual.....but I still don't quite understand how it all works..... 1 Link to comment Share on other sites More sharing options...
roysboystoys Posted April 26, 2021 Share Posted April 26, 2021 That's not a " flathead" it's bolted to. I'd guess Olds or Pontiac? Link to comment Share on other sites More sharing options...
406mac Posted April 26, 2021 Author Share Posted April 26, 2021 Yes....not a flathead...that was the only picture I could find that showed this type of set up...I guess the manifold could be used for any type of motor but the carbs are the early Ford 3 bolt design...Thanks Mac Link to comment Share on other sites More sharing options...
28 Chrysler Posted April 27, 2021 Share Posted April 27, 2021 The open tube would have to be plugged. It was probably plugged with a blow off cap or some type of check valve. Link to comment Share on other sites More sharing options...
406mac Posted April 27, 2021 Author Share Posted April 27, 2021 Yes..it would seem like that openingi would create a giant vacuum leak if not capped in some way....the picture I posted above shows a "pop-off" valve on the side of the blower....I assume for backfires? Link to comment Share on other sites More sharing options...
406mac Posted April 27, 2021 Author Share Posted April 27, 2021 Maybe I'm looking at this manifold backwards? the supercharger would pressurize the air box where the carbs are located and the fuel/air mix would then be delivered to the intake manifold through the large opening in the front? The carbs are mounted backwards on the manifold? .... Link to comment Share on other sites More sharing options...
CarlLaFong Posted April 28, 2021 Share Posted April 28, 2021 Thi thing baffles me' I cannot see how it would work. I the blower is piped into that box somehow it would blow through the carb backwards. I l also cannot see how it bolts to a flathead (Ford I assume). In the picture of the blown V8 it looks like a Potvin front drive. The carb are mounted to an airbox and the air fuel mixture is pulled through and compressed in the blower and forced through the two large tube and into the engine. There is no need for a pop off valve in the box since there is always negative pressure at that point Link to comment Share on other sites More sharing options...
406mac Posted April 28, 2021 Author Share Posted April 28, 2021 yes....the box cant be pressurized by the blower as the fuel mix would blow out of the carbs....it is not necessarily for a flathead...the round hole on the base could bolt to a supercharger and to any engine with some plumbing and the correct intake.....the example in the photo is much easier to figure out.....Maybe that it is why this one ended up at a swap meet?.... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now