Has anyone else ever noticed this?
Looking at a NA log vs 2 different N20 tunes (57n/35f made 100rwhp, and 70n/42f made 175rwhp). Truck makes 516rwhp NA.
MAP stays the same on all the pulls 97-100KPA. But I noticed a change in Dyn cyl air.
NA = .92-1.05 (Max IDC = 92%) Lambda .78-.81
57n/35f = 1.00-1.13 (Max IDC = 95%) Lambda .756-.805
70n/42f = 1.02-1.17 (Max IDC = 99%) Lambda .738-.805
I was planning on making a jet change to the fuel side, but I think it would be much better to make an adjustment to the VE table to get AFR in line.
My worry is I do plan on turning on the 2nd stage this weekend at the track and I have a feeling IDC is going to go even higher when there is another 175-200hp worth of N20 involved.
I really should think about getting bigger injectors, reducing the fuel side of the N20 jet and increase fuel from the injector, essentially making it more of a dry shot.