I've noticed with my tune I actually run less timing on e85 than I do on 93. On 93 octane it's pretty constant at 28.5-29, and the knock sensors are very happy, on E-85 it is at 27.5 degrees timing advance, with the knock sensors behaving the same way. I was under the impression that one of the benefits of e85 would be safely running more timing? Not that I think that anything above this level would really add much in terms of power, just curious. The only thing I can think of as a reason why is that on 93 octane, Lambda is .82 and on e85 it runs a little leaner at .85-.86?
Truck is a 13 Reg Cab 5.0 F150 with JLT CAI, BBK T/B, Boss intake manifold, Boss/GT intake cams, 170* t-stat, Kooks long tubes with race catted mid pipe, 4.10's, magnaflow dumped cat back, vas traction bars, and a 3/5 lowering kit. I also run nitrous, but I'm talking about my N/A tune.
Truck is a 13 Reg Cab 5.0 F150 with JLT CAI, BBK T/B, Boss intake manifold, Boss/GT intake cams, 170* t-stat, Kooks long tubes with race catted mid pipe, 4.10's, magnaflow dumped cat back, vas traction bars, and a 3/5 lowering kit. I also run nitrous, but I'm talking about my N/A tune.