stickmantijuana

iTrader: (1)

is anyone using fuel temp as fuel compensation factor? People say fuel temp can affect air temp at manifold level. if so, would anyone mind sharing compensation table for the fuel temp?

RGHTBrainDesign

Your flex fuel sensor has integrated fuel temperature on it by the way.

stickmantijuana

iTrader: (1)

yea that's what I'm using for fuel temp sensor. do you use compensation table with respect to the fuel temp by any chance?

RGHTBrainDesign

I have yet to purchase an ECU for this car. Technology is changing so fast that it's now in question as to if I made the correct selection with the Adaptronic M6000.

Jarik

Interesting, I just realized that in a VE tuning model on the Haltech, the "Primary Fuel Density" table can be set up as a 3D table.

Rather than just adding a VE % correction table, would it be better to set up a "Fuel Temperature" axis on the Primary Fuel Density table and manage it that way? Then you can simply just calculate the fuel density rather than doing it empirically.

Anyone done it this way? The FD is fitted with a Fuel Temperature sensor stock.

stickmantijuana

iTrader: (1)

i wonder what FD is doing with fuel temp...?

i read that fuel temp isn't really a density thing as the difference in liquid expansion would be miniscule and its change in density too small to affect anything. it rather affects the air temp going into the combustion chamber. so actually hot fuel would mean hotter air --> less oxygen --> gotta pull fuel. i just don't know by how much and at what temp.