Goo'Roo Posted January 27, 2019 Posted January 27, 2019 Hello, in the pic there's my ignition map, is it too safe under boost? The bike is a gsf1216 with busa pistons. Bike is not intercooled at the moment, and is running at 11/12psi 0,8bar of boost I'm using 100ron Eni fuel, what do you think? Quote
Gixer1460 Posted January 27, 2019 Posted January 27, 2019 Very safe i'd say! Does the ecu that you use have additional compensation maps for IAT and CT - these can be of more assistance by allowing a more 'generous' main map and then trimming the extremes at elevated temps. Quote
Goo'Roo Posted January 27, 2019 Author Posted January 27, 2019 No, it's an Ignitech that controls only the ignition, the bike Is carbed. What kind of values would you suggest? Quote
Gixer1460 Posted January 27, 2019 Posted January 27, 2019 21 minutes ago, Goo'Roo said: No, it's an Ignitech that controls only the ignition, the bike Is carbed. What kind of values would you suggest? Difficult to suggest figures but yours are about where mine ended up - but mine runs to 2 bar boost, is injected and has compensations so not a direct comparison - you could add 1 deg to whole map from 3000 / 150kpa up if you know fuelling is good. Quote
Goo'Roo Posted January 27, 2019 Author Posted January 27, 2019 You mean that'you're at 28° at 2 bar of boost? Fueling at the moment is a bit lean, 12.5/7 afr at wot, I've to increase a tad the fuel pressure and test. When I'll be around 11,8/12 I'm going to give more degrees to the ignition Quote
Gixer1460 Posted January 27, 2019 Posted January 27, 2019 Actually 29.5 degrees - see attached map. 1 Quote
CossiEst Posted February 14, 2019 Posted February 14, 2019 On 1/27/2019 at 4:41 PM, Goo'Roo said: Fueling at the moment is a bit lean, 12.5/7 afr at wot, I've to increase a tad the fuel pressure and test Hi, i set up my bandit myself, with very little knowledge, it's been very educational on the carb side. Do you have this AFR troughout the whole (boosted) rev range, or does it lean out in the higher rpms? If the AFR curve is flat then fit 005-010 bigger mains and you should be fine. While i tuned mine i saw that the afr is changing from (lets say) 13:1 with 115 mains To 12:1 with 125 mains, so after that it was easier to choose a main jet ballpark. If the mixture leans out in the higher revs (as mine did) then try to move the pitot tube inlet to a different place in the oncoming airflow. Rising the fuel pressure has very little effect on mixture, it has to be as low as possible and as high as needed :D Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.