All,
I had my 2001 Thunderbird Dyno'd over the weekend. I am now confused. Will you please help me decipher it?
Background: 2001 Thunderbird (Standard). Airbox has 4 holes drilled in it (As detailed in the Classic Tuning 10A document). Carbs are jetted with 40 pilots and 120 mains (as per 10A). Fuel mixture screws are 2 1/2 out from seated.
Exhaust is standard with baffles drilled out (Can't remember diameter of drill bit, but it was a hole saw, and it was as big as I could fit in.
The Dyno was done at 65-70 degrees F. Lots of moisture in the air (Fog was thick just above the ground). Tires are very new with about 300 miles on them. Bike should have been warm as I drove it 80 minutes on the highway to the station, where it sat for about 20 minutes before being run.
Also, I am preparing to install a 3 into 1 exhaust from Thunderbike New Zealand. Will this have any affect on the Air/Fuel peak?
Questions:
1. Can anyone explain what that peak in the Air/Fuel mixture is at 4250 RPM? The Dyno operator said that was normal. It is the "nature of the beast" to happen when the throttle is cracked open. ?????
2. Can anyone explain why I am not getting more horsepower and torque with my mods?
Thank You Very Much.
Linear Mode
