weber 40's or 44's???

[MAB]

Anyone out there know which is best?

I have a very old set of weber 40's installed on my newly rebuilt 912 with the big-bore pistons. I rebuilt the old carbs as well, but even though they are much better, some of the old parts are very worn, i.e. diaphram armeture is worn away, etc. I was considering a new set, but I'm unsure which to choose (40's or 44's). I hear the 40's are better for crusing around town, and the 44's are more favorable in the higher RPM's , but again, this is only what I hear. With all the work I'm already done, I'd like to upgrade, but want to get the most power and best performance I can out of this cool little ride.

Advice would be appreciated.

[C. Clark]

The simple answer is 44's are to big for the 912 engine. We've heard this question before, in this case smaller is better.
Chas.
69/912

[Touque]

Everything that i've read says what Chas said when talking about the stock 1600. I 'just' swapped out my 44's for the original Solex's, but I don't have the big-bore kit. I couldn't get them 'right' - the car started fine and at the top end it just screamed, but off the line it wasn't very smooth.

I know the carbs were not old (only have about 5k miles on them) so it was down to the jetting. The car always ran rich no matter what I tried to adjust.

[MAB]

Sorry for the delay in getting back, but thanks guys. I will ask some more but looks like I should stick with the 40's.

Mike