Projected or non with blowers?
10-29-2014, 10:21 PM
#11
Registered
I think fat as 11.1 above 5500 on blown engines running over 8lbs of boost. Just my opinion, Also I'm not a big fan of locked timing, particularly if someone is running lean (for more power) throughout the rpm range. Old school I know, but it has treated me well in the past.
10-29-2014, 10:28 PM
#12
Registered
iTrader: (3)
I can say this. I've played with my carbs and jetting the past couple summers. My boat went slower when I had an AFR of 12ish at wot while tuning. The fastest its went, is with a wot AFR of 11.2 at 5600RPM. The more fuel I gave it, the more the engine seemed to like it. My cruise at 4000, is around 11.8. Put around 400 miles on the boat with that setup this summer, and my transom is clean. Never had to clean any black soot or anything from it. I am happy with that. 
10-29-2014, 10:44 PM
#13
Registered
I can say this. I've played with my carbs and jetting the past couple summers. My boat went slower when I had an AFR of 12ish at wot while tuning. The fastest its went, is with a wot AFR of 11.2 at 5600RPM. The more fuel I gave it, the more the engine seemed to like it. My cruise at 4000, is around 11.8. Put around 400 miles on the boat with that setup this summer, and my transom is clean. Never had to clean any black soot or anything from it. I am happy with that.
10-29-2014, 11:03 PM
#15
Registered
Yes they do!
