Quote:
Reed, for the carb question, my point is that i live in Europe and Carter BBD's are not the kind of things you find very easily...
I've got two downdraft weber carbs. They come from a 1.6L mild racing motor (or 1.5?...). We discussed that some time ago with dan and he told me not to mount them (i'll make my own intake of course) cause they'll be far too small.
The thing is : even one carb seem to be bigger (in throttle bore) than the stock carter bbs or holley 1920 i currently have.
Moreover, these motors used to get less than 20mpg which i assume is already anough for a 170 /6.
What do you think about it?
Thanks for your help
Marc
Well, I would agree that one carb would probably be too small considering that the 170 slant six is something like 3.0 liters. However, running two of those carbs might actually work out okay. You would have to create some sort of throttle and kickdown linkage, but that would be the hardest part (after making the intake manifold). I don't know much about Weber carbs, or Fiats, or dual carb setups, but it sounds like it might work. The key factor here is determining what airflow each carburetor is rated at. The BBD flowed 280 CFM, the Holley 1920 flows around 200 (I think) As long as the combined airflow of the carbs is equal to or greater than that of the stock carb you should be able to make it work.
What would be most helpful is if you could post the model of Weber carb that you are trying to use and give some specifications such as one or two barrels, staged or synchronous opening throttle, CFM rating, etc...