bazeng
Well-known member
Most ECU's should be able to do that these days (good ones anyway).
You just need to setup an e85 sensor which outputs to the ecu the content of e85 to which the ecu would reference the value of the sensor and trim the fuel/ign map to suit.
I run this type of compensation with air temps on my vr4 as I get about -60 degrees C at the start of a run and 0 degrees C at the end. I gain about 50hp with the cooler temps and the tune is simply adjust via air temp compensation tables on the Autronic.
So in the fuel flex case, you could create a map to which fuel is adjusted via the ethanol reading. Ignition can also be adjust to suit.
This should be doable on the VIPEC and the MOTEC (M400 / M800 / M84 series only, not the early M4/M8/M48) as they are both highly flexible systems.
The VIPEC is actually based on the LINK ECU (nz made).
But in the end, the computer is only as good as the tuner so make sure you choose something that your tuner is comfortable with.
You just need to setup an e85 sensor which outputs to the ecu the content of e85 to which the ecu would reference the value of the sensor and trim the fuel/ign map to suit.
I run this type of compensation with air temps on my vr4 as I get about -60 degrees C at the start of a run and 0 degrees C at the end. I gain about 50hp with the cooler temps and the tune is simply adjust via air temp compensation tables on the Autronic.
So in the fuel flex case, you could create a map to which fuel is adjusted via the ethanol reading. Ignition can also be adjust to suit.
This should be doable on the VIPEC and the MOTEC (M400 / M800 / M84 series only, not the early M4/M8/M48) as they are both highly flexible systems.
The VIPEC is actually based on the LINK ECU (nz made).
But in the end, the computer is only as good as the tuner so make sure you choose something that your tuner is comfortable with.