@jyamona you said in another thread that optimizing AFR, Timing, and VANOS we could get very good gas milage in the lower load areas of our tunes. Could you or one of the other tune proficient members on here expand on what changes can be done to optimize this area.
As for AFR I know its considered relatively safe on 93 to lean out the lower load areas to 15.5~ish, and have heard that on high Ethanol mixes you could possibly even go as far as 16:1 (I don't know this to be safe myself)
V8bait mentioned these Vanos tips in the other thread. "Close the exhaust cam earlier (trap some exhaust) and/or close the intake cam earlier (prevent full cylinder fill), but only at lowish loads. Reduces pumping loss a lot, holds on to more exhaust gasses which lowers the effective displacement of the engine, and maybe lowers emissions some. Watch your overlap so play with which cam changes work best, it's not the same for st cars and oem."
But if someone could expand upon best timing practices that would be awesome.
Gas milage isn't my #1 priority as gas has gotten cheaper, but the 335 is my daily and on road trips its nice to not have to fill up every 280-300 miles and instead every 400 - 450. And hey why throw money away you don't have to.
Let's keep it directed towards stock frame cars as those are the most likely to be daily driven.
As for AFR I know its considered relatively safe on 93 to lean out the lower load areas to 15.5~ish, and have heard that on high Ethanol mixes you could possibly even go as far as 16:1 (I don't know this to be safe myself)
V8bait mentioned these Vanos tips in the other thread. "Close the exhaust cam earlier (trap some exhaust) and/or close the intake cam earlier (prevent full cylinder fill), but only at lowish loads. Reduces pumping loss a lot, holds on to more exhaust gasses which lowers the effective displacement of the engine, and maybe lowers emissions some. Watch your overlap so play with which cam changes work best, it's not the same for st cars and oem."
But if someone could expand upon best timing practices that would be awesome.
Gas milage isn't my #1 priority as gas has gotten cheaper, but the 335 is my daily and on road trips its nice to not have to fill up every 280-300 miles and instead every 400 - 450. And hey why throw money away you don't have to.
Let's keep it directed towards stock frame cars as those are the most likely to be daily driven.