MTFCA Forum

I know Winfield carbs were made in different sizes. What are the largest and smallest Winfield carbs? What is the largest size that can be used om a T motor, while still retaining drivability for street use, if the motor has a .280 or .290 lift cam and a Model A exhaust manifold? Is a Winfield even recommended for street driving?

Check out this article on the evolution of the Winfield carbs

https://www.nwvs.org/Technical/2104WinfieldHV.pdf


The Winfield catalog shows a S-A-U for a performance T or stock A application, I’m about to put a S-AA-U on the A crank motor in my ‘15 touring

Here is a 4V I ran on my ol ‘27 roadster. It ran kinda funky at first, but after building a new barrel and boring the housing to seal up the vacuum leaks at idle, and figuring out that the idle screw and air bleeds were installed in the wrong screw holes, it ran like a top! Basically stock T engine SR-C-U on my noticeably modified T speedster motor... for now!
S-B-D on my dads Fronty powered touring And the S-AA-U going on my somewhat modified T touring

I ran a Winfield SR on my Tudor and it ran good. Had to pull it when the diaphragm went bad. looking for parts.

Check with Brauns Automotive down in SoCal. He started making his own accelerator pump diaphragms after having issues with leaking gas thru the center rivet

Thanks Kevin.