Do you rescale flex fuel multiplier

[Jonblarc7]

Do any of you re-scale the flex Multiplier. It is real hard to get the full multiplier of 1.00 at 80%.

I would think it would be better at

60%:1.00
40%: 0.50

Then leave the rest stock.

[Ben Charles]

Every setup I touch gets rescaled

[HeavyChevy305]

Problem is it also automatically rescales other tables that don't really benefit you.

[Jonblarc7]

care to explain?

Do you see any problem changing it like I explained above.

[lucas287]

When I rescaled mine it automatically changed many other tables as well. Just test it out and see. If those other tables sit well with you, then keep the changes. Mine gets all the timing by 65%, seems to work well.

[Jonblarc7]

thanks will do

[sevinn]

Absolutely. We rarely see better than 65% out of the pump here so that's what I tune to 1.0 for.

[pisces_0]

Which specific table are you referring to?

[HeavyChevy305]

Absolutely. We rarely see better than 65% out of the pump here so that's what I tune to 1.0 for.

With a flex fuel sensor?

[sevinn]

With a flex fuel sensor?

Yeah with flex fuel sensors. Never had a car come here and say more than 70% on their FF sensor from our pump E.

It's also a nice safety net. Only tune it for what you see.

Which specific table are you referring to?

ECM 12715

[pisces_0]

Yeah with flex fuel sensors. Never had a car come here and say more than 70% on their FF sensor from our pump E.

It's also a nice safety net. Only tune it for what you see.


ECM 12715

Found the table and rescaled it based on the E85 blend around here.

Thanks!

[HeavyChevy305]

Yeah with flex fuel sensors. Never had a car come here and say more than 70% on their FF sensor from our pump E.

It's also a nice safety net. Only tune it for what you see.


ECM 12715

That's not how it works. If your Stoich table is scaled for FF and the sensors enabled, you're tuning for 1.0 commanded vs. actual. Computer takes care of the rest.

[sevinn]

That's not how it works. If your Stoich table is scaled for FF and the sensors enabled, you're tuning for 1.0 commanded vs. actual. Computer takes care of the rest.

I know how this works. I wasn't talking about commanding 1.0 eq.

You may have misunderstood me and the post. I change the second to last column to 63 so that 1.0 in that cell yields all ff timing.

Like this
Attachment 106682

[HeavyChevy305]

I know how this works. I wasn't talking about commanding 1.0 eq.

You may have misunderstood me and the post. I change the second to last column to 63 so that 1.0 in that cell yields all ff timing.

Like this
Attachment 106682

Understood.