Okay I need some one to verify the injector scaler for me. I have been trying to tune for a e85 map the last week or so. I ran into a major lean out issue and could not figure out why until I looked at my injector scaler. From the help section on race tuner, it says the following:
Injector Scaler
This table contains a singular value used to represent the fuel injector size or flow rate. Any changes to this value will affect ALL tables within the ECU related to fuel delivery and load calculations. When using stock injectors with Petrol fuel, this value DOES NOT need to be altered. When adjusting this value, a lower number represents an SMALLER injector, whereas a larger scale value will represent a LARGER injector.
Tuning Tips
To calculate a starting value for a different injector size than stock, use the following formula:
New Scale Value = [(Original Injector Size / New Injector Size) * Original Scale Value] * multiplier.
For example, let’s say you are replacing your factory EVO injectors (~550cc) for aftermarket 750cc injectors. The formula would look like:
New Scale Value = [(550cc / 750cc) * 57] * preferred multiplier (1.15 works well, but this value can be modified to what works best for your local fuel and atmospheric conditions);
New Scale Value = 50
Well using the equation above, scaling for 680cc injectors I get a value of 52. So from the statement saying that smaller value represent smaller injector is incorrect! It the opposite, larger value = smaller injector vice versa. Its proven by their equation. I did it for both 1000cc (36) and 750cc (I got 48.07, which I still don't understand how they got 50) .
Following what I came up with, my car is running very well on e85 and AFR is right where it should be. Just wanted to make everyone aware of this potential issue. If I am sorry that I just wasted your time
