Holley/Demon Carb stumble
Ok so there is a lot of info and question.......and Thank You!
PRH, i have been thinking about the same thing.
What rpm is middle of 2nd ?
I can't say for sure as the slick were not hooking on the street and i was paying more attention to keeping it straight then what the tach was say in. Maybe this will help, altho the converter is tight it stretches or stall at 4200 and i shift a 5800 so somewhere in the 5 to 5500 rpm range
LOVE your hair pulling out Icon :rofl:
Measure the turns in on the idle mix screw to open the throttle blades enough to reveal .010, 020, .030 and .040"
Do the same for the secondary throttles.
That's a great idea!!!
Had not thought about the T slots being a different height between the primary and secondary side.
While you're waiting for stuff, go buy the drill sets so you can measure everything.
I spent 3 hours yesterday building me a spreadsheet like you showed me a couple of pages back.
what else do you thing i should add to it?
Where is the best place to buy the drill sets and more important is sizes???? from...*** to .***
Yes PV block off on secondary as well as new float and jet extensions
Idle transfer slot
"B" is how the throttle blade looks with my drilled butterflies base. maybe not quite that extreme.
Don't be surprised if you need a 50cc shot up front, brown cam #1 hole .035 nozzle.
When i first started to fight this problem i thought about a 50cc but couldn't decide if i wanted it in the primary side or secondary side.
This thing/carb has never had any problem with the primary side, it's when i break the secondaries open and it bogs. where i wank it to the floor or if i roll in to it and then wack it past the start of the secondarys.
With the proform main body the bog has mostly gone a way and traded for the popping and banging issue that overjetting(I think) fixed. Put back in the stock proform jetting and it pulled threw high gear.
(remember! i live at 6600 foot elevation)
Ok so there is a lot of info and question.......and Thank You!
PRH, i have been thinking about the same thing.
What rpm is middle of 2nd ?
I can't say for sure as the slick were not hooking on the street and i was paying more attention to keeping it straight then what the tach was say in. Maybe this will help, altho the converter is tight it stretches or stall at 4200 and i shift a 5800 so somewhere in the 5 to 5500 rpm range
LOVE your hair pulling out Icon :rofl:
Measure the turns in on the idle mix screw to open the throttle blades enough to reveal .010, 020, .030 and .040"
Do the same for the secondary throttles.
That's a great idea!!!
Had not thought about the T slots being a different height between the primary and secondary side.
While you're waiting for stuff, go buy the drill sets so you can measure everything.
I spent 3 hours yesterday building me a spreadsheet like you showed me a couple of pages back.
what else do you thing i should add to it?
Where is the best place to buy the drill sets and more important is sizes???? from...*** to .***
Yes PV block off on secondary as well as new float and jet extensions
Idle transfer slot
"B" is how the throttle blade looks with my drilled butterflies base. maybe not quite that extreme.
Don't be surprised if you need a 50cc shot up front, brown cam #1 hole .035 nozzle.
When i first started to fight this problem i thought about a 50cc but couldn't decide if i wanted it in the primary side or secondary side.
This thing/carb has never had any problem with the primary side, it's when i break the secondaries open and it bogs. where i wank it to the floor or if i roll in to it and then wack it past the start of the secondarys.
With the proform main body the bog has mostly gone a way and traded for the popping and banging issue that overjetting(I think) fixed. Put back in the stock proform jetting and it pulled threw high gear.
(remember! i live at 6600 foot elevation)