buelliganx1 Posted February 4, 2016 Report Share Posted February 4, 2016 So I'm poking around on craigslist looking at different cars and I come across this 1950 Dodge Coronet with a flat head straight 6 and a turbo. Thing is I consider myself pretty knowledgeable on turbos but I cant figure out what the hell is going on with this thing. It's almost as if the turbo is sucking air through the carb and then around and into the head instead of the more typical blow through design. I want to buy this thing just so I can see how the damn thing works, if it works at all. Unfortunately this is the best pic of the engine that they posted. I can't imagine that putting the fuel air mixture through the turbo can work well at all. Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted February 5, 2016 Report Share Posted February 5, 2016 Draw through designs were more popular in the 80s. Allows you run a carb without putting the whole carb in a box to pressurize everything. You can find them here and there, AZN on street outlaws was running a draw through setup on the bug for a couple seasons. I would say pulling the air/fuel mixture through it could be no worse than what's being done on a traditional blower setup. Quote Link to comment Share on other sites More sharing options...
buelliganx1 Posted February 5, 2016 Author Report Share Posted February 5, 2016 I would say pulling the air/fuel mixture through it could be no worse than what's being done on a traditional blower setup. True, I can see what your saying. Just caught me off guard, not used to seeing this type of setup and definitely not in a 1950 4 door Coronet. lol Might actually make a fun little ride. Quote Link to comment Share on other sites More sharing options...
Geeto67 Posted February 5, 2016 Report Share Posted February 5, 2016 it's a draw through, like you said and a stupid design. If he doesn't have a separator in the intake then he isn't actually pressurizing anything but the air above the carb throat. sidevalve or flatheads really respond to turbo or supercharging, and a lot of those old dodges run low compression (5:1 or 6.5:1) , but I can't imagine he's putting much through that setup than 6-8 psi. Quote Link to comment Share on other sites More sharing options...
10phone2 Posted February 5, 2016 Report Share Posted February 5, 2016 Believe it or not, the old air-cooled vw folks had alot of good luck with draw through holley setups. Too add to the fun of them, a few of them would run air-water intercoolers between the turbo and engine. You basically had a big box of fuel back there and this was without all the fancy electronics of today. Quote Link to comment Share on other sites More sharing options...
Dammit Charlie Posted February 5, 2016 Report Share Posted February 5, 2016 That is a pretty cool setup, but damn it needs cleaned up. Are those copper lines supplying the coolant and oil to the turbo? Quote Link to comment Share on other sites More sharing options...
cstmg8 Posted February 5, 2016 Report Share Posted February 5, 2016 Sure looks like soft copper with compression fittings. Budget build! Quote Link to comment Share on other sites More sharing options...
Geeto67 Posted February 5, 2016 Report Share Posted February 5, 2016 the oil drain back into the head is what is visible and copper. I think. I mean I don't really know that you can tap the head of a flathead dodge in that spot and get 40psi oil. all the piping is so short I really can't imagine it having much lag. those dodges stock put out 70-100 hp so even at 8 psi and about 150hp I betcha that thing moves along pretty good, esp when you consider a 50 dodge fully loaded weighs roughly 3000 lbs. Quote Link to comment Share on other sites More sharing options...
coltboostin Posted February 5, 2016 Report Share Posted February 5, 2016 Draw through set ups actually work well as the fuel atomized very well going through the turbo. It also works as a heat sink to reduce IAT's. Benefit #3 is you can run a regular non boost referenced carb. Few rotaries up here running "suck through" systems. Quote Link to comment Share on other sites More sharing options...
miller11386 Posted February 5, 2016 Report Share Posted February 5, 2016 You can find them here and there, AZN on street outlaws was running a draw through setup on the bug for a couple seasons. That car has since been converted to haltec Quote Link to comment Share on other sites More sharing options...
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