Flex fuel table and negative psi adjustments

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oja
Posts: 17
Joined: Mon Apr 03, 2017 4:52 am

Flex fuel table and negative psi adjustments

Post by oja »

If I have ID1ks and actually have to reduce psi the higher the E content can I put negative (whole #'s in as "-3.1") when I save an re upload it comes back as a rounded super high number like 125.556 etc. (and looks to be a positive number) in that cell.
KTuner
Site Admin
Posts: 3745
Joined: Mon Jul 22, 2013 8:13 pm

Re: Flex fuel table and negative psi adjustments

Post by KTuner »

I'm sorry, what you're saying doesn't make from a tuning aspect so you will definitely need to elaborate. There should be no negative PSI adjustments on a properly tuned platform with flex fuel.
oja
Posts: 17
Joined: Mon Apr 03, 2017 4:52 am

Re: Flex fuel table and negative psi adjustments

Post by oja »

So on pump 91 I'm running around 15 psi with anywhere from 2%-10% ethanol at around 75ish injector duty cycle. But when I pump E85 in I need to subtract boost so my injectors don't max.
KTuner
Site Admin
Posts: 3745
Joined: Mon Jul 22, 2013 8:13 pm

Re: Flex fuel table and negative psi adjustments

Post by KTuner »

Change your base target. Add more to the lower end of the ethanol spectrum and add less, or 0, to the high end.
oja
Posts: 17
Joined: Mon Apr 03, 2017 4:52 am

Re: Flex fuel table and negative psi adjustments

Post by oja »

Thank you!
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