Super Cruise - AFR Adjustment - Highway - Low Load - Fuel Saving

[BigDaddyCool]

Anyone got any idea's on how to I guess get the AFR from stoich eg 14.1-14.7 depending on the fuel upto around 16 etc.......... just for highway cruise?

LS2, L76,LS3....... the o2 sensors etc override things, I dont want to run without closed loop maf or mafless only type restrictions. I can push the MAF to run lean with the charge temp table somewhat but the o2 sensors will compensate.

Does anyone else have something they do? I'm trying to hit a weekly fuel target consumption wise or I'll have to sell my V8.......... and highway cruise is the only area I got where I can push leaning out the fuel.

PS. I realise I have brought this up before.... was hoping for an update, maybe HP tuners could of added something by now....

[Xjas]

How much of a gain do you get by running at 16:1 over 14.7? Is it worth the effort? I would have thought lean cruise was dumped by GM for a reason.

[Ben C]

Run open loop. But don't hold your breath for much imprivement

[SultanHassanMasTuning]

only way OL and tune off reliable AFR sensor, but as mentioned the gain of MPG's will be minimum