[Fot] Stromberg Carb tuning

[Brad Kahler]

Bud, if I remember correctly you're still running the stock fuel pump,
correct?

Brad


On Wed, Oct 29, 2014 at 2:44 AM, Bud R <levilevi at comcast.net> wrote:

> I ll second that. I would make sure the fuel pressure at the carbs is 1
> 1/2- 2
> psi. ZS carbs do not like higher fuel pressure than that and will miss
> every
> time a little too much fuel gets pushed past the float needle valves.
>
> In fact it would be the first thing I d correct because all the tuning and
> replacing parts won t fix too high of fuel pressure. I chased my tail for
> longer than I d like to admit before I figured out high fuel pressure was
> causing a miss on my 6.
>
> Put a fuel pressure regulator on and test your pressure with a vacuum gage
> to
> get it right, then do all the other things that have been suggested by the
> list. Don t trust the numbers on the fuel pressure regulator they are not
> accurate. Use a vacuum gage to set it.
>
> Bud Rolofson
>
> Extreme Parts Racing (more than just a haircut)
>
> 71TR6 CC57365 (Good 6)
> 71 Spitfire MK IV Race Car #3
> 69 Spitfire MK III (back up FE engine/dinghy car)
> 93 Minnie Winnie Race Support Vehicle
> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)