Dyno time!
With all the drama's of blown up engines behind us. We finally got the db1 Beta EVO onto the Dyno. A call to Motorcycle Weaponry at Mona Vale got me hooked up with one of my old racing mates, Roger Quinlen. I had raced against Roger back with PCRA in 1997 1998. A quick base line showed we had 72HP at the rear wheel. With the Nemisis onboard we set about dialing in the fueling, it took a while to get a nice smooth AFR, it was worth it with the engine picking up 4 HP for 74.
We tried unsuccessfully to remove the big dip you can see in the power curve at 5800rpm. Adding and removing fuel and advance to the rear cylinder which was showing a rich condition during this range. Nothing would fix it. And we can came to the conclusion that it was suffering from the short header on the rear cylinder which was a pretty standard design for a lot of Ducati engines.
Once we had a clean map we tried some of the Elf fuel I had been advised to try. The results were very impressive! The bike picked up 4 peak HP, and 4 ft/lb of torque. Thats 5% power and 8% torque! WOW! Lovely if you can afford the $11.00 a litre price.
Roger also picked up that the bike's clutch was slipping. Dialing into a zoomed view on the dyno allowed him to show me the spikes and loops caused by the clutch slipping then hooking up. I ordered a new clutch on the way home. Thanks Roger!
If you want a good place to go and get your bike Dyno'ed call Arthur or Steve at Weaponry.
Motorcycle Weaponry
Unit 7, 8 Wilmette Place, Mona Vale 2103
ph 02 9979 4744
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