M30B32 + carbs?

bmw2800cs said:
Are your 38's downdraft or side? Progressive (I assume not)? I apologize in advance for asking noob questions.
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Weber 38/38s are downdraft carburetors. Carl Nelson told me this has long been his preferred carb swap for any of the m30s if someone is going to Webers.
 
Ohmess said:
Weber 38/38s are downdraft carburetors. Carl Nelson told me this has long been his preferred carb swap for any of the m30s if someone is going to Webers.
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My coupe originally came with triple weber 40s and was a dog but I also didn't spend a lot of time trying to figure them out. Sure looked and sounded good, though. I. too, had a call with Carl who said the 40s were "washing the cylinder sides in gas" and to go with dual Weber 38s which I did and have never looked back. I can provide the jetting if you decide to go this route.

And my drive this morning was great!
 
StephenZ said:
Definitely the ball hone. I can't remember the grit of the one I did mine with, but like others have said, a nice brisk pace to get a good cross hatch. It wan't tough to do...a little nerve wracking at first..lol. Make sure you check for a ridge at the top of your cylinders before just throwing a hone on it, too.
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I checked the ridge and it is there but i can barely feel it.
There are few pitted areas in the cylinders that can be felt by hand
I will post more pics and measurements for the cylinders.
Thanks!
 
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