Newb question: On the fly map switching with efilive?

[ssteve]

About to purchase a v2 and start tuning my lb7 duramax with the dsp5 switch, and will eventually be getting a newer vette. So I was wondering if they make a dsp5 or similar setup for the gen iv's? Did a small amount of searching but didnt turn much up.

[tokymon]

no there is no switches for the gas vechiles

[GMPX]

The only thing we offer like that is a custom OS that allows you to switch between normal gas and E85, typical use for that is for nitrous setups, not E85 as such. However, there is nothing exactly like the DSP switching the Duramax has, on a gas engine throwing more fuel at it might make it run too rich and loose power, taking fuel out might damage parts due to it being lean, very different tuning concepts to a Diesel.

[joecar]

ssteve,

gasoline engines require AFR (or Lambda) to be in a very narrow range for each operating mode (e.g. 12.6-12.9 for load, and 14.7 everywhere else), see what GMPX said.