To: anyone who's had a dyno tune, what was the targeted AFR that it was tuned too? i know the GSXR guys like to tune to 13.1:1, but i read over on the European GSR750 forums that 14:1 (seems too lean to me) is what the GSR 750 likes. can anyone who's had a tune let me know? Im trying to get a good fuel map built with my Bazzaz and auto tuner. and 13.1:1 seems too harsh. I feel it would do well on a race track, but for daily driving its a bit harsh. any input is greatly appreciated
Last Edit: Jul 14, 2017 17:59:33 GMT -6 by DMVrider
Post by northernrider on Jul 13, 2017 21:55:16 GMT -6
When they say 13:1 they mean 13 parts air to 1 part fuel, so 14:1 is leaner than 13:1. If I'm not mistaken most cars are programmed at 14.7:1 for the cleanest burn emission wise, while high performance engine builders would program the ECM to run around 12.5:1 for the most power. This ratio would change if they were running race fuel.