MAF value changing on own

[p4ndiamond]

Have an issue in the tune.

Preparing to run a VMP HPX maf .

In the tune file im on RZASA 190312

It will not accept Kg/hr numbers larger than what its forcing a value of 1745.4 Why is this and what can i do to eliminate this problem in the file to properly match the MAF sensor being used ? I can type the values in , save them , but revisiting it changes those values and pegs them at that.

[decipha]

your xdf is 2 years old.

download the latest it uses the k constant so no worries.

[p4ndiamond]

Will do. I think i tried that one before and ran into the same issue which is why i reverted originally. Does the K constant allow me to place the true values from the maf table ?

[decipha]

You were clipping the max limit in the maf. If you have larger injectors that value will be higher with the k constant.

Read the fuel write up.

[p4ndiamond]

Thanks i just saw that it was updated.

I am running 52lb ford racing injectors @60psi

So i updated the XDF and changed the K constant to 30 .

I edited MAF data , sar, high and low slopes.

The maf is the only one that seems to scale down with a max and the scale percentage is around 1.9%

so from there I can dial in the tune or is there another step i must take ?

[decipha]

you have to do the injector data first

maf will be acrual values now, there is no visible scaling with the k constant

nah thats it

you did update all the sp** parameters correct

[p4ndiamond]

All SP parameters appear to be updated. for maf-t does the sp** maf-t and the non SP need to be updated ? i only updated the non SP for that

[p4ndiamond]

The kg/hr table clips maf value at a max of 3320.2 now.
All values lower appear to properly reflect the table from this default transfer.

https://drive.google.com/file/d/1Kksy4U ... pDYAT/view

[decipha]

the sp** maf transfer is what you need. The comments should tell you that.

that limit sounds correct for your injectors.

[p4ndiamond]

cool deal. I've updated that one also now.
When dialing in fuel i should update SP** maf transfer only or both ?