Stromberg/Webber adapter

J

jeepguy1948

Well-known member
I’m thinking of trying a Stromberg 97 on my banger. I already have a manifold for a Webber carburetor that I would like to use. Does anybody know of a source for an adapter? I realize that a great many of you could and would make your own but that is not really an option for me
 
I went from a Weber to a Stromberg 97. I went ahead and purchased a new manifold for the 97, then sold my Weber complete as a set.
 
Stromberg on Weber Mani.jpg

Stromberg to Weber Mani Adapter.jpgJeepGuy,
I still have the adapter I made for trying a Stromberg on my Weber manifold if you are interested. If you cover shipping, you are welcome to try it out.
 
I'm finding this conversation about Stromberg 97 vs Weber interesting. I have just fitted a Weber to one of my cars and a copy Weber to another. I'm happy with the results but wonder whether a 97 might have been better.
FWIW, For the copy carburettor, I fabricated a manifold out of 3mm (1/8") sheet to suit.
 
I have had multiples of both on my cars--- I will say I do like the weber better. It just seems to run consistently the same. My strombergs seem to run a little different with each tank of gas.
 
Jordan,
If your Strombergs are old, you may be fighting vacuum leaks. I chased the tuning of a Stromberg when I put on the supercharger and an air/fuel meter. I ended up buying a new Stromberg and it tuned in much better. Of course, these days, each tank of gas is probably a little different with unknown amounts of alcohol in each tank in the ground.
 
One thing that causes me to lean toward the Stromberg is that it is so much easier to work on and with (for a so so mechanic (me)). There is no doubt that a Webber can be tuned to work better than the Stromberg but you really need to know what you’re doing and probably should have an air/fuel sensor. My understanding is that the Webber will deliver better fuel economy if that is a priority.
 
jeepguy1948 said:
Obviously you thought the Stromberg was preferable to the Webber (which I have heard from others as well).
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I really had no problem with the Weber, it was just that my engine builder (the late Ron Kelley) preferred the Stromberg 97, so that is what I went with. I bought one of the new units that are currently being made in the UK. Ron re-jetted it to suit the Model A.
 
My 97
 

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I made an adapter out of hardwood, I think hardwood isn't necessary but I had some. I adapted a Winfield manifold to a 38/38 Weber, worked just fine, and also acted as an heat insulator for the carb.
 
Great idea Jim! How did you feel about the performance of the Webber as compared maybe to a Stromberg? I know none of your engines are ever close to stock and your Webber is bigger than that typically used on a banger but even so I would be interested to get your opinion
 
Have a look at my post from way back, I posted picks ands instructions.
You have to do a little mod on the inlet valve ,mine has been on for about 10 yrs no drama.
Lawrie
 
Walls, some where I have the drawings I did at the time, I have a big day tomorrow but will see if I can find them ,if not I will be away until 27th so then I will look them out,, or pull the carb off the model a and take some pics. there is more than just drilling out the hole
Lawrie
 
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