New intake manifold Poll
I am starting to contact foundries on making a new Hudson intake for 232, 262, and 308 engines. Here is what I have so far:
1) It will be somewhat based on the original Twin H design, but will be aluminum, not cast iron. The area on the ends of the manifold will extend slightly beyond what they are currently to allow space to properly locate two Weber carbs.
2) It will eliminate the heat riser connection to the stock exhaust manifold, but will include a separate connection for heat from the engine cooling water.
So here is what I would like to know. Clifford had 19 Hudsonites committed to buying a new manifold w/ dual Weber DGES (38/38) carbs. Is that interest still there? If so let me know if you are interested. I do not have any pricing yet, nor do I expect this can happen if we only have 4 or 5 interested buyers. My guess is the target price will be $500, give or take $100.
Although the initial design is still for 2 Weber DGES (38/38 synchronous), or DGEV (32/36 progressive) carbs, would there be more interest if a generic designed manifold with an open top to allow for an adapter plate to allow for a variety of carb combinations - 2 x 1 (twin H), 1 Carter WGD (stock design), 2x2, or 3x2 Carter WGDs or Rochesters? I have looked at the spacing and there is little room to put 3 Weber DGESs, nor do I think it would be useful as they flow about 400 cfm each anyway. Since I would like to keep the plenum narrow I do not see the space to put a 4bbl on the manifold and Clifford already sells one like this anyway.
So:
1) would you be interested in a new aluminum Hudson intake? - Yes or No
2) would you prefer it to be 2 Webers or have it have an adapter plate if such an animal can be designed economically? - Yes or No.
Note: I am not interested in making money on this, nor do I intend to get involved in selling carbs, or carb parts, linkages, etc.
1) It will be somewhat based on the original Twin H design, but will be aluminum, not cast iron. The area on the ends of the manifold will extend slightly beyond what they are currently to allow space to properly locate two Weber carbs.
2) It will eliminate the heat riser connection to the stock exhaust manifold, but will include a separate connection for heat from the engine cooling water.
So here is what I would like to know. Clifford had 19 Hudsonites committed to buying a new manifold w/ dual Weber DGES (38/38) carbs. Is that interest still there? If so let me know if you are interested. I do not have any pricing yet, nor do I expect this can happen if we only have 4 or 5 interested buyers. My guess is the target price will be $500, give or take $100.
Although the initial design is still for 2 Weber DGES (38/38 synchronous), or DGEV (32/36 progressive) carbs, would there be more interest if a generic designed manifold with an open top to allow for an adapter plate to allow for a variety of carb combinations - 2 x 1 (twin H), 1 Carter WGD (stock design), 2x2, or 3x2 Carter WGDs or Rochesters? I have looked at the spacing and there is little room to put 3 Weber DGESs, nor do I think it would be useful as they flow about 400 cfm each anyway. Since I would like to keep the plenum narrow I do not see the space to put a 4bbl on the manifold and Clifford already sells one like this anyway.
So:
1) would you be interested in a new aluminum Hudson intake? - Yes or No
2) would you prefer it to be 2 Webers or have it have an adapter plate if such an animal can be designed economically? - Yes or No.
Note: I am not interested in making money on this, nor do I intend to get involved in selling carbs, or carb parts, linkages, etc.
Comments
Here are some air cleaner options:
https://www.amazon.com/WEBER-DGV-FILTER-ADAPTER-CLEANER/dp/B01N6SUF97
https://www.ebay.com/itm/AIR-FILTER-FOR-WEBER-32-36-DFEV-CARBURETORS-AIR-PLENUM-INTAKE-VW-FIAT-FORD/283759965463
https://www.amazon.com/1038-Weber-DGV-DGAS-Filter/dp/B00SLGZ96A
https://www.ebay.com/i/151875943958
Jay
Don Crane loaned me a nice '55 - '56 Twin H manifold as a starting model. Although I would and could make some significant changes to the layout I want to stick with as close to the original size as possible so the manifold can be used in stock as well as modified setup.
So far I have had the manifold laser scanned (see below). Next, the old manifold and scan will be going to an engineering company to be translated into a 3D model. The CAD file will then be modified inside and out for the new design. This will include the following:
1) change from heat riser to hot water heating, 2) modification inside to improve atomization, 3) Adding the enlarged Weber carb mounting flanges, 4) minor outside mods for simplifying the overall appearance.
I will be keeping the X-Y carb flange center lines the same as stock so if someone wants to use the manifold as a slightly modified 2X1 Twin H manifold it can easily be done with an aluminum adapter. I also am planning to add some extra metal on the top of each runner near the intake so if someone wants to use it for a port FI setup it can also be done with minor machining.
Next, the new CAD manifold design will go to a 3D print shop to be printed into probably 2 or 3 puzzle pieces to make a full-scale model for fitting on an engine with carbs. I have purchased a couple of Chinese Weber knock-offs for the fitting.
Once this has been sorted out, the plan is to have a modified CAD design to make the outside pattern and inside cores. I hope to just 3D print cores instead of making them the old fashion way. It adds to the cost per manifold but will keep the overall cash outlay hopefully under $10K for the design and engineering costs. The traditional way of doing a sand casting for something like this would easily be about $20K from everything I have learned so far.
I would take one, would want to utilize my existing stock one barrel carbs.
Dave Eddie
The initial prototype manifold will be 3D printed for sizing, fitting, and any other adjustments that may be needed prior to committing to full-scale production. However, producing say 30 to 50 manifolds (that is the goal) by 3D printing would be cost-prohibitive from the numbers I have seen.
All that being said if what I have in CAD when finished is something you can use for your one-off we can discuss it. I am not sure if your Makerbot is large enough to print a manifold or not?
Warren