Finally was able to get the 'ol Dad Bike dyno'd and was very happy with the numbers. On 10psi, it made just under 250whp and 152ftlbs of TQ at the wheel at a crazy rich .73 lambda. Leaning her out to .82 should be worth 12-15whp, but I ran out of runs and was already happy so didn't want to push it. Accounting for the power eating shaft drive (~15% vs 8% on a standard chain drive), that would put it just about 300hp at the crank. While that would not be stellar for a ZX14R, I think its pretty good for a motor rated at only 156hp with smaller TBs, way smaller cams, worse flowing heads, and two 90* pinions for the shaft drive :). HP peaked at 9700, and although it didn't fall off, it didn't seem like it was climbing anymore and the power just kind of went horizontal so I dont think there is much more in it as it sits and wont be worth raising the rev limiter. I think the small cams just run out of breath at that RPM. TQ was a freaking table, making north of 140ftlbs from ~6500 to almost 9k RPM, peaking at 152 @ 7600. Note that these RPMs may be off by a few hundred since they are converted by chatGPT based on the gearing and mph - the dyno event was just doing simple HP vs MPH runs so I had it convert to RPM and add a TQ curve based on the HP and RPM number.
Not going to mess with it much more until I get it on a standalone so I can have proper wheelie control and boost by gear since stock wheelbase, stock gearing, no TC or wheelie control, and a big turbo isn't the best combo for usable power lol.
This is the graph that chatGPT re-scaled based on the graph of the run from the video. First run was in 6th and hit a mph limiter that was supposed to be disabled so other two runs were done in 5th. Not that it makes much of a difference, but the conversion was incorrect as well - it shows correction using 83F and 38% humidity with Baro 29.92 which must have been what it was in the morning but by the time I dyno'd it at 2:30pm it was actually 95*F with 55% humidity and 30.16 baro for a whopping *drumroll*........+.6hp extra lol.
To compare, the 2nd highest number of the day was a Panigale V4 that put down 199whp and right before me a 2024 636 made 108whp so seems like the dyno is well calibrated.
