Engine Performance Modifications

'99 ST2/S

January 13, 2001 - First Ride Report 

The Bike: These modifactions have been made over time ... as parts wore out and needed to be replaced, as super deals became available, or at my whim.

  • '99 ST2 purchased November '99
  • 74k+ miles
  • Racetech springs & Goldvalves - The BEST all around modification & the one I'd do if I would only be allowed to have one mod to make.
  • Ohlin's rear shock w/remote preload adjuster
  • ProTech clip-ons on ST Heli bar adapters - which lower bars to about pre '99 SS height.
  • SS brake & clutch lines
  • BrakeTech Superlight cast iron rotors front & Wave rear
  • VeeTwo aluminum clutch & basket with aluminum Barnett pack
  • Zero Gravity low screen - reduces turbulance for my height
  • Marvic Penta 1's
  • FIM 161 chip
  • Arrows carbon fiber slip-ons
  • K&N filter & airbox top removed
  • Nichols alloy engine bolts
  • Hindsight Bar-ends
  • Various C/F goodies

Engine Modifications: By Matt Spencer @ Salt Lake Motorsports

  • one (1 ) mm larger intake valves
  • intake ports expanded for larger valves and matched to intake tracts
  • stock exhaust valves with exhaust ports flattened
  • 11.5:1 JE pistons
  • 900SSie cams
  • Nichols Flywheel
  • Nichols alloy cylinder studs

January 9, 2001 - Engine massage by Matt Spencer @ Salt Lake Motorsports

January 10, 2001 - Dyno comparison chart with modified engine vs. a dyno run from another stock '98 ST2.

February 28, 2001 - Dyno comparison chart with modified engine vs. a dyno run from a stock ST4.

July 2000 - Dyno chart of my bike when snorkel/airbox modifications were tested back in July. (Operator/Printer was having a bad day)

Modifications:

  • FIM 161 chip,
  • Arrows aluminum slip-ons, &
  • K&N Filter
  • best power with airbox top removed.

Power curves from the Ducati.com website. Click to open new page that has conversion formulas.

HOME

BACK