This looks like fun a bit OT but flathead related

[greg g]

Simple and likely very effective. Itsa Hudson

[Plymouthy Adams]

I tipped Richie off about the post..a man with three Hudsons, figured it would be worth a peek..

[claybill]

i had one of those 710 caps but lost it.

[DJ194950]

;)Love to ride in one properly set up flat motored car to see if would be worth the work/expense.

Not within my means now, but just planning to try something like this would be fun for me, maybe try to get my fellow old car lover/builder with slightly more money to build at 230ci. w/turbo for his 49 bus. coupe upcoming project! At least i could get a few rides!

If anyone on this forum goes this way, please post the process even if is is ongoing trial/effort.

Also maybe someone who follows the HAMB forum sees at turbo on flat motor

(not flat ferd, please) Let us know so we can check it out!

Thanks for posting!

Doug

[Flatie46]

I don't know much about SU carbs but I would think just one on that engine wouldn't be enough.

[Plymouthy Adams]

you be surprised what the SU is capable of..read up on the orgin of the SU carb...think you will be amazed

[Flatie46]

you be surprised what the SU is capable of..read up on the orgin of the SU carb...think you will be amazed

I studyed up on 'em once years ago, it was more of a history lesson than about application and capability. I have slept since then, I have noticed they're not as popular as they once were. I remember seeing them on alot of Harleys in the late '70's and early 80's.

[Plymouthy Adams]

popularity contest are not often won on merit but on price...scoring a SU that is totally refurbed..chunk of coin..but then most carbs are..I have a set of "works" SU 4's and special intake manifold for my one Austin engine that is larger than the head it is going on..these puppies were not cheap mind ya and sometimes a bit difficult to come by..Mini Cooper racing parts..comapred to the Strombergs..these babies are a breeze

these are similar..

http://www.ebay.com/itm/New-SU-1-3-4-Carb-Carburetor-Conversion-with-Intake-Manifold-for-MGA-MGB-/150871597649?pt=Motors_Car_Truck_Parts_Accessories&hash=item2320a5e251&vxp=mtr

Edited August 18, 2012 by Tim Adams

[Flatie46]

Wow! Kinda pricy these days. A guy I work with bought a 57 Austin Healy (I think that's what he told me) project. He said he got it from a guy who had just pulled the engine with plans to put a V8 in it. I told him to put the engine back in it and just get it on the road. He was thinking he would have a hard time getting parts for it. I did some quick looking and the minor stuff wasn't that bad I remember looking up the carb kits, they were reasonable. This has been sometime back, I don't think he has touched the car. He said it ran before the engine was pulled. Sounded like it wouldn't take too much work to get it back driveable. I did tell him if he went with the V8 I wanted the carbs.Lol

[Plymouthy Adams]

kits are not bad priced..but should they need reworked and bushed..the tend to get real pricey..and these are complete ready to bolt on no cores..so the high price..that is how I bought the ones I got..while not as much as these..still a goodly amount..but within reason for what they are..

[Flatie46]

I know all carbs have went up, kit's in general have too. I remember buying kits for like 12-15 bucks. I bought a rebuild kit for the old Jeep I've been working on and it was $40. I kinda got my undies bunched for a second but then I thought, it has been years since I bought one. I do live in the past when it comes to prices sometimes.

[Plymouthy Adams]

sticker shock is very common these days..a friend of mine who was retired and played in his shop tossed in the towel..went back to work and now pays to have the heavy car work done..now in a sense his work pays enough to enable him to pay when hired out to the right folks..but where is the fun in that..?

[Andydodge]

That looks like a 2" HS4/6 Skinner Union leaker..........would be interested to see what sort of HP figures that hairdrier pumps into the Hudson, neat setup whoever did it..........andyd

[Plymouthy Adams]

not sure of the particular model and original application..look close at the dual float/fuel chambers..

[Tim Keith]

I'd like to know how the turbo improves the Hudson torque curve. I think the turbo could be selected to increase the torque at mid range so that you have better passing power. Amazing things are being done with production turbos. The little 1.0 Ford Eco-Boost 3 cylinder has peak torque at only 1,400 RPM. Actually from 1,400 to 4,000 RPM the torque curve of the tiny motor is basically flat. How is the magic done? A flathead builder can only dream, but just a little bit of that magic could go a long ways on a 230. A little more punch where the flathead now runs out of wind, not a high RPM motor by any means. Someone who has built Mopar sixes since the 1940s told me that a customer turbo'd a 230 and his Plymouth now feels like its got a 318.

[greg g]

I would think a turbo from a small diesel like a nissan or mitsubishi, the 14 ft city box trucks would be juet the thing as those deisels work in about the same rpm band as the flatty 1200 to 3200 rpms or so.

[Tim Keith]

The Chrysler four cylinder turbo strategy of the '80s through the early '90s will be played back by all automakers, updated with leading edge technology. Those 2.2 and 2.5 turbo fours were generally dependable, although many owners weren't picky on maintenance. Most of those cars weren't hot rods, Chrysler was just trying to make do without a V6. A tire burning 230 is not my intent, just more guts at cruising speed. Flatheads can have a good kick off the line, especially in a light car. I recently got a 265 crank and rod set from George Asche. A 265 would already have stronger torque. I would think that 4 pounds of boost might make a 265 feel like a two barrel 318 at freeway speeds, when you attempt to pass. Not sustained high speed driving, but a little more on-demand guts in everyday use, retaining the stock low speed driveability and smooth quiet idle. A turbo motor doesn't need a lumpy camshaft profile, nor does it need to turn high RPM to make torque.

A turbo flathead isn't traditional, most build info is anecdotal and hearsay. Generally, it pays to use EFI with a turbo, which involves tuning that I know nothing about.

[maineSSS]

I'd be a little hesitant to try that on a 230- the block casting is thin around the exhaust seats, and turbos back up a lot of heat in the exhaust manifold. Supercharging would be a safer route to forced induction, IMO. You could also do the Squires "remote turbo" setup, but I've always wondered what happens to fast-spinning compressor blades when condensation hits them....

Edited August 18, 2012 by maineSSS

[40P10touring sedan]

OJ's friend...............just a guess.

Hmmm, I have the Ellis twin single pot manifold for my 265......make a twin exhaust set up and that means I could have a twin turbo!!!!!...would we call that a PNX then instead of a GNX...P for plymouth.....just askin!

[rtlsnakedaddy]

kits are not bad priced...

Not too bad from my perspective. The Chrysler doesn't seem too bad for parts for me, but I'm coming from the view point of my MGB as well as vintage motorcycles like my BMW and Norton. Compared to those, current pricing for American iron parts ain't bad at all.

[Tim Keith]

I'd be a little hesitant to try that on a 230- the block casting is thin around the exhaust seats, and turbos back up a lot of heat in the exhaust manifold. Supercharging would be a safer route to forced induction, IMO. You could also do the Squires "remote turbo" setup, but I've always wondered what happens to fast-spinning compressor blades when condensation hits them....

The exhaust valve concern is the common question that frequently comes up, but I have not seen much data on real world experience. I think the Mopar sixes because of the water distribution tube might have an exhaust valve seat cooling advantage. But other than the Ford V8 I don't see any ongoing report on any turbo flathead. How does the 25-inch block exhaust seat cooling compare with the 230? Some turbos produce less back pressure. Maybe use one of the new electric cut-outs and have turbo on demand? I hear those cut-outs are good, while they last.

I agree that a belt driven supercharger might be "best". I'd like to see somebody do a turbo and drive it enough to let us know.

[DJ194950]

If anyone has a good leftover turbo off, say from a 4 cyl. diesel with waste gate, blow off and maybe an adjustable boost control i'd take the time to try it out on my 230ci 50 4 dr. Ya right!!

Build a blow thru type box for the carb (larger carb. required i'm sure), use the sodium filled exhaust valves form a flattie 6 forklift motor (i have the valves), I do believe that it's a good possibility if one would limit the boost to a lower # (6-8 ???).

That would still leave room for the AC compressor.

Why not have a hot car that"s cool inside??