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Old 04-18-2004, 01:46 AM
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Default Re: ST4 modifications at BCM Ducati (infoage1)

Sure, they're on the 2nd page of this thread. Anyone care to comment? I haven't had experience with FI.

Recenly I rode 550 miles and had a chance to really get to know the new powerband. At 4k rpm it's little changed: same vibration, same sound, 5% more power, the coolant was maybe 5 degrees F warmer... not bad at 4k rpm (4k is where I usually cruise). But from 4k to 6k it really jumps up in power and has a strong intake sound. It seems as if I could skip a gear when I upshift.

It sounds "angry" at idle (probably the additional compression), and revs up quicker with a blip of the throttle. There's very little "cammy" sound when cruising around the city; duration is very close to stock. Pulling away from a stop is easier; it revs up quicker with the 2 pound lighter flywheel (now 2#, was 4#).

Roll-on is better, and jumping into traffic and passing is much easier now. The intake howl is fine (with foam earplugs).

Tomorrow I'll burn a tank to see how all this has altered my gas mileage. I added some leaded race fuel to get an exhaust outlet color. (I got 52.8mpg)

Looks a little dark but the fuel mileage is fine so no changes needed.




Modified by DanST4 at 5:19 PM 6/10/2005
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