Bigger, seems I recall Darrell telling me that the pulse carb has an idle circuit and the main circuit too???

 

is there adjusments for idle midrangeand top end, if so whats involed in dialing it in?

 

I am not the designer, so I cant explain it near as good as Darrel White can, but from what I gather. The fuel comes into the bottom of the carb, where the "fuel Spool" is. This fuel spool has a groove in it, this gruve is tapered. It starts out the size of a peice of hair,and progresses in width,and depth till it comes to wide open throttle where it turns into a hole which leads directly up a tube where the main jet is(centered inside the carb). The groove on the Fuel spool is your Low/Mid,and top ,BUT, thier is also the size of the Main jet AND the amount of fuel pressure that can have a big impact on the way this Pulse Carb is tuned, to a specific motor.


This Fuel delivery system is in linkage to the butterfly flap which everyone knows controls the AIR to the engine. This linkage has a simple adjustment on it, that will allow you to "fine tune" the ratio between the Fuel spool and the butterfly.


This is a work in progress, but it has "I think" great possibilities. I am the only person to have one of these made for a quad, but they have been shipped Nation wide for more than a couple years now for Mini-dragsters. And people who race mini dragsters are even more crazy than we are when it comes down to ET. So if they are wanting them, and trying them, I think with a little time and effort these will make great Quad carbs also. ESPECAILLY for as drag racers.[img]i/expressions/face-icon-small-smile.gif[/img]







Bigger.

 

how is throttle response with this setup. anybog. what do you tie the vacum port for the pump in to. ALSO CAN STOCK THROTTLE CABLE BE USED