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#41 |
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Senior Member
Join Date: May 2010
Location: Baxter, MN.
Posts: 169
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#42 |
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Senior Member
Join Date: Apr 2022
Posts: 150
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I would like to see modifications to the Burtz block to mitigate leaks/leak paths.
For the main bearing studs, there's no reason to have them as through bolts. They could be a blind stud on the bearing, and then have a dummy bolt epoxied/glued on the outside to pass for judging. I would like the auxiliary oil passages for overhead valve conversions be able to have plugs put in that would not require gooping up the valve cover bolts to stop the leaks. The rear main could have an o ring groove machined around the bearing to seal that? Not sure on this one as I can't remember/picture what it looks like. |
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#43 |
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Senior Member
Join Date: Dec 2023
Location: Rhode Island
Posts: 243
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I believe the spirit of the Burtz company is in making products with good performance but appear stock. So my suggestion to Terry is to build his brand image around that idea.
If I were in the mood to make something different, I'd make something that A) Does not have have an alternative solution and B) has the potential for high demand Many of the options proposed by the folks on here are good, but we already have a Burtz block (and all the engine goodies) and Mitchell doing overdrives and transmissions, and a soon-to-be new F100 box. So maybe something on the intake/exhaust side? I always dreamed of having a performance-oriented updraft intake/carburettor that's bigger than the current "B". Even a single Stromberg flows more air than a B carb. But you need to get a fuel pump and end up with something that sticks out.
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Feb '31 Standard Coupe Member of the Little Rhody Model A Club & MARC |
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#44 | |
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Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 3,182
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Quote:
After the water pump, the set of purely mechanical components that can be optimized within the stock silhouette will have been pretty much exhausted. You would need to branch out, either developing a product that's clearly non-stock appearance, or moving into something like the electrical system. |
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#45 |
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Senior Member
Join Date: May 2010
Location: Campbell,CA, USA
Posts: 420
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Thanks to everyone for your suggestions and comments.
To manufacture a new part, it must have a positive ROI (Return on Investment). The parts we manufacture have positive ROIs because they appear original, have hidden features to correct design shortcomings, and there is a high demand. Many of the suggested parts (synchromesh transmission, intake manifold for Model B carburetor, F100 steering gears, higher 2nd transmission gear, larger carburetor, and vibration dampers) are already in production by others. Some parts (automatic transmissions, overdrive transmissions) would be too large to fit into housings and maintain a stock appearance. Other parts (two-up and two-down crankshafts and camshafts) will never have a positive ROI. I have to wonder about the cast-iron high-compression head for a Model T. I see the aluminum ones in Lang's and Snyder's catalogs, but I wonder why they don't offer a cast-iron head. Some parts (Model T and V-8 cylinder blocks) would take too much of my time and would be too expensive to have me direct other engineers. I have no interest in copying a stock Model A cylinder block because, other than better material, it would have the same shortcomings as an original cylinder block. Original, Burlington, and Scat crankshafts all will have a fatigue failure at the #4 connecting rod journal before a cylinder block failure. The New Engine patterns for the cope and drag, and core boxes for the water jacket, and the exhaust ports could be used to save money. All other cores would require new core boxes. There would be no ROI because it would take too much of my time and would be too expensive to have me direct other engineers. In response to the poster who wants me to change the design of the new cylinder block to relocate main bearing studs 1 and 3 and eliminate oil leaks. The stud locations cannot be changed because they are in the same place as the original studs, and the only way to machine the seat for the castellated nuts is back-spot facing. Every potential oil leak path is discussed in the Builder's Guide. Egge pistons are often "out of stock" because they are unable to make them fast enough to keep up with demand. I have a piston design that is lighter and stronger than the Egge design. Lighter reduces connecting rod stress, and makes the engine more responsive. Stronger allows higher RPM. If we can produce pistons for a competitive price, we will offer them. I congratulate Arnold for making a ceramic/carbon seal water pump, but I don't like that it doesn't look like original. The water pump I designed will look like an original Model A water pump, and I have sent step files to my son Jesse for 3-D printing. The following pictures show details of the new printed piston. |
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#46 |
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Senior Member
Join Date: May 2010
Location: VA
Posts: 2,052
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#47 |
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Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 3,182
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Isn’t the throw a lot shorter in modern designs?
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#48 |
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Senior Member
Join Date: May 2012
Location: Chillicothe, Missouri
Posts: 1,856
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When you consider the operating RPM range of the stock model A. engine even the stock pistons could be substantially lightened!!!
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"If I asked people what they wanted they would have said faster horses." -Henry Ford "Primitive technology is not a design flaw" 1928 Ford Model A Roadster Pickup 1930 Gordon Smith Air Compressor 1941 Willy's Pickup 1960 Thunderbird-For Sale 1964 Buick Riviera 2x4 425 1965 Pontiac GTO, 455 Super Duty 2004 Dodge Ram SRT-10, V-10 Viper 1977 Charger Jet Boat,460 Ford,Jacuzzi Jet Front Engine Nostalgia Dragster,Supercharged 296 "Fullrace Flathead" Ford Engine Build up on DVD ask |
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#49 |
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Senior Member
Join Date: Jun 2015
Posts: 1,456
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NEW Front 10 Leaf spring with proper spring rate and dimensions to match the A Springs offerings, now unavailable.. These were the best repros of all that fit properly with a strong main bottom leaf.
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#50 | |
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Senior Member
Join Date: Apr 2014
Location: La Verne California
Posts: 287
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Quote:
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#51 |
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Senior Member
Join Date: May 2010
Location: VA
Posts: 2,052
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#52 |
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Senior Member
Join Date: Nov 2011
Location: Sonoma, CA.
Posts: 1,633
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Here is a 3D printed mock up piston with modern short skirt going in a Burtz Block.
This is for a Dual Overhead Cam head. Last edited by Dodge; 10-29-2025 at 01:49 AM. |
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#53 |
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Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 8,434
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Terry, Whatever you diced to make I will probably want one but shipping is a killer. Please make it something small and light.
__________________
When all is said and done, more is said than done. That's why we judge people on what they do, not what they say. I sometimes wonder what happened to the people who asked me for directions. If I am not in trouble, I've done something wrong. |
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#54 | |
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Senior Member
Join Date: May 2010
Location: Norfolk UK
Posts: 229
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Quote:
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#55 | |
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Senior Member
Join Date: May 2010
Location: Campbell,CA, USA
Posts: 420
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Quote:
Dean receives partial container loads directly from China. If you buy from Dean, transportation is cheaper, American tariffs do not apply, and you don't have to pay for going through the Panama Canal. |
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#56 |
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Senior Member
Join Date: Oct 2014
Location: Charlotte, NC
Posts: 334
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Snyder's already has it. A-9425-X $110.00
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#57 | |
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Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 8,434
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Quote:
I agree about close proximity to China being an advantage in this case but Dean is about 3,500 Km away on the other side of the continent so shipping from there to here adds $.
__________________
When all is said and done, more is said than done. That's why we judge people on what they do, not what they say. I sometimes wonder what happened to the people who asked me for directions. If I am not in trouble, I've done something wrong. |
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#58 | |
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Senior Member
Join Date: Jul 2011
Location: Redondo Beach, CA
Posts: 7,294
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Quote:
They only do the two piece now, the one on my Town Sedan in a one piece. I recommend the reverse scroll on the snout, it eliminates and front seal leaks.
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#59 |
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Senior Member
Join Date: May 2010
Location: Camarillo, CA and Pine Grove, CA
Posts: 3,017
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They are already in the works. I held the casting in my hands a couple weeks ago. They will be all new parts.
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go?
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#60 |
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Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 6,077
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__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
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