Join Date: Mar 2006
Location: Gone Riding.......
2008 ZX10R Akra Evo Dyno with Motty AFR tuner
Thought I would post this for those interested.
The higher runs are after Evo was intalled and a Motty AFR close loop system running. Took a little bit to get the AFR unit tuning properly as it was disabling self tuning due to high engine temps on dyno. Finally figured this out and raised the high temperature limit and it worked fine after that. It only took a few pulls once I had the temp limits fixed and it jumped from 171 to 176. Took it for a ride today and it just keeps getting better and better. have set the AFR at 13.2, will be going back to the dyno in 2 weeks and will have a bit more of a play with other AFR ratios for best power.
Interesting to see that the baseline on the other sheet is 151. This is the same bike with 1000kms and completely stock with all the crap still on it, while the Akra evo with Motty AFR pulled a 176. Just goes to show how restrictive the exhaust is. The 151 run was done quick and we didnt hook up the RPMs it was done in 5th gear with speed scale on bottom. The Akra runs were done in 6th with RPM on bottom
Was all done on the same dyno but differant days. The other line with the 151 run, was my old 05 zx10r with akra evo, pc3, race cam, head gasket, ignition module, this run was baseline too before new mapping for headgasket and cam, the old 10r got 163 in the end with those mods.
For those that were interested in the Racefit growlers, there was one of our local magazines that fitted one to a 08 10r and gained 10hp.
The only thing I wasnt happy about is the dips at 8000rpm and 9500rpm. Not sure if this is an exhaust characteristic or if its the secondaries, which i have removed. May put them back in when i go back to the dyno to have a look if it smoothes that area out. The AF line was nice and flat, and the Wideband O2 sensor running with the AFR was .1 richer than the Dynojets sniffer. We think this may be because the AFRs sensor is in a better position for readings and not sniffing down the end of the can. The AFR sensor is located in the link pipe next to the rear set.
Last edited by Rizzo; 08-18-2008 at 04:31 AM.