Fuel Map

[RJH]

I suspect the stock fuel map on the 4/ is infinite or continuous demand - jetted OK in other words …or is it? Not is it jetting to optimum - but it is a continuous curve.

Of the aftermarket products used to fool the map after the box – which one has the most adjustment?

I’m trying to visualize…so the stock fuel map line is continuous… and the aftermarket devices may interrupt at say 5 points. This would mean you are going from stock map then adjusting the map at 5 points so the fuel curve..total… may actually be better – but the line or fuel graph line would not be linear –right?

The aftermarket devices are safe and easy – but who would have the ability to modify the entire factory curve?

 

[ROCKERDAN]

I run a powercommander with ignition module..

you can ADD or SUBTRACT FUEL at ANY RPM from bottom to top on these maps.....you can also add it anywhere along the THROTTLE POSITION.....very nice setup.

and with the ign module you can BUMP timing anywhere in the rpms range....

Call ULMER racing,and he will set you up

Dan

 

[RJH]

Thank you for taking time to reply...
We are in Port Carling area - just South of your place up north.

Do you mean:

You can adjust the total flow for the full range?

Also

You can selct a throttle position and dial it there?

But does it not still have like only 5 points you can adjust?

 

[SledFreak]

The first 2 is yes and yes.

Throttle Positions are 0,2,5,10,20, 40, 60, 80, 100.

 

[RJH]

The first 2 is yes and yes.

Throttle Positions are 0,2,5,10,20, 40, 60, 80, 100.

Thanks - sorry I'm so slow...

Is that mm or % open?

 

[Iceman57]

The first 2 is yes and yes.

Throttle Positions are 0,2,5,10,20, 40, 60, 80, 100.

Thanks - sorry I'm so slow...

Is that mm or % open?

Percent open!!!!