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Just dyno`d the t-bird
This is the perfect set up for me. I wasn`t interested in maximum horsepower, just wanted it to run right with the TORS pipes it came with. It runs smoothly right the way through the range with no glitches, stutters or flat spots and pulls a lot better than it did when I got the bike.
Model: 2004 Thunderbird (standard)
Carbs: Keihin
Airbox: K&N in stock airbox with no holes and secondary airbox with a few extra holes.
Exhaust: TORS
Ignitor: Stock, 8,700 redline IIRC
Main Jets: 98 (standard)
Needle: Thruxton
Pilot Jets: 40 (will be switching to 42 after the dyno)
Air/Idle Screws: left and right carbs 2.25 turns, centre carb 2.5 turns. (the middle cylinder runs hotter)
The dyno showed the motor was running along the 'perfect' line, occasionally moving slightly to the rich side of it, almost all the way through the range, apart from way down low, (1,000 - 2,500 rpm) where it was a bit lean. The 42 pilots should fix that.
the dyno results were
68 rwhp
50.9 nm torque
I`ll attach the graph when he sends it to me.
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"Thats Numberwhang!"
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