Syvecs Forums

Hugh, we will be releasing soon a firmware update with calculated Torque and Power from throttle mass flow and fuel flow

Nice one Ryan,

Separate to this mapping aid where I display the time to cross each map cell, I also created a Maths channel to calculate engine power from fuel flow normalised the AFR back to Lamba 1, also another one to calculate Turbo flow.

I also created another channel which sounds similar to what you have planned, I used this formula (rpm*engTrqEstMbtPreClamp/1.355817948)/5200

Can't remember where I got the 1.355817948 number from, but think I used a Dyno sheet to back calculate.

Lots of people get hung up on the big number up top. I am more concerned with the efficiency of the mapping at a cell level, so am still a fan of the graph that the math's channel creates.

You can always solve for a slightly slower cell crossing time next to a good one, but it is a strong pointer on where to look.

Here is the formula I used for Turbo airflow Ryan.

I assume you are using something similar, although this is quite specific to my car.

I also used the relative fuel pressure to calculate the correct fuel flow.

14.7*lam2*sqrt(12.47267*relFp1/2999)*fuelDutyPri1/100*6/2