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The Dyno RoomA special room dedicated for Dyno tuning products, troubleshooting and results. All Gearheads and Dyno Operators are welcome here as well as the guys that are new to tuning. Please see the special rules for this section before posting.
So I'm getting really close to getting my motor tuned in to where I like with my VE tables, timing, air fuel ratios the whole nine yards with my power vision.. Day before yesterday weather was pretty good 43° and overcast.. I put some new plugs in and wanted to try my new Dragy. So I put on about 20 miles before I did a couple of test hits.. Each hit I brought up to 120 mph.. Each hit the bike performed very well, the only issue I had was my satellite connection was in and out so I was able to log any data on the Dragy..
I pulled the plugs today and the front looked real good and the rear probably had a little too much fuel in the idle area.. For My idle circuit I'm running 13.6 on the AFRs but I'm running the rear VE tables a few points higher for the rear cylinder than the front. So instead of knocking down the AFRs, In the area from 1000 to 1500 RPM and 0 to 5% throttle is where I just lowered the VEs for the rear cylinder only to kind of matching the front now..
The timing looks good on the ground strap and could probably even take a little more but it's good enough for me.. I will try to get out next week to see how or if I was successful in decreasing the mixture in the rear cylinder by decreasing the VE tables .
Last edited by 98hotrodfatboy; Jan 19, 2023 at 04:18 PM.
Since you only changed idle mixture taking the bike out prolly won’t tell you much about the change.
Not a good assumption to what is needed in the rear cylinder, at idle, based on theory rather than measurement.
Bob
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