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.
MAF value changing on own
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1998 Mustang Cobra
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'19 F-150 3.3L
Re: MAF value changing on own
your xdf is 2 years old.
download the latest it uses the k constant so no worries.
download the latest it uses the k constant so no worries.
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- Posts: 40
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- Vehicle Information: 2004 Mercury Marauder DTR
1997 Mustang Cobra
1998 Mustang Cobra
2021 Mustang Eco Boost
1989 foxbody hatch
Re: MAF value changing on own
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 ?
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'19 F-150 3.3L
Re: MAF value changing on own
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.
Read the fuel write up.
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- Posts: 40
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- Vehicle Information: 2004 Mercury Marauder DTR
1997 Mustang Cobra
1998 Mustang Cobra
2021 Mustang Eco Boost
1989 foxbody hatch
Re: MAF value changing on own
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 ?
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 ?
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- Posts: 5121
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'19 F-150 3.3L
Re: MAF value changing on own
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
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
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- Posts: 40
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- Vehicle Information: 2004 Mercury Marauder DTR
1997 Mustang Cobra
1998 Mustang Cobra
2021 Mustang Eco Boost
1989 foxbody hatch
Re: MAF value changing on own
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
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- Posts: 40
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- Vehicle Information: 2004 Mercury Marauder DTR
1997 Mustang Cobra
1998 Mustang Cobra
2021 Mustang Eco Boost
1989 foxbody hatch
Re: MAF value changing on own
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
All values lower appear to properly reflect the table from this default transfer.
https://drive.google.com/file/d/1Kksy4U ... pDYAT/view
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- Posts: 5121
- Joined: 2021 Feb 15, 12:23
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'19 F-150 3.3L
Re: MAF value changing on own
the sp** maf transfer is what you need. The comments should tell you that.
that limit sounds correct for your injectors.
that limit sounds correct for your injectors.
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- Posts: 40
- Joined: 2021 May 09, 14:12
- Location: Ruston Louisiana
- Vehicle Information: 2004 Mercury Marauder DTR
1997 Mustang Cobra
1998 Mustang Cobra
2021 Mustang Eco Boost
1989 foxbody hatch
Re: MAF value changing on own
cool deal. I've updated that one also now.
When dialing in fuel i should update SP** maf transfer only or both ?
When dialing in fuel i should update SP** maf transfer only or both ?