Tuning & dyno · Service
Motorcycle dyno tuning in Astoria, Oregon
Fuel-injected street bikes go on the dyno and leave with the horsepower their parts were supposed to make. Harleys first, every other street bike welcome.
Tuning & dyno · Service
Fuel-injected street bikes go on the dyno and leave with the horsepower their parts were supposed to make. Harleys first, every other street bike welcome.
01 · The main event
The dynamometer is a drum the rear wheel rides on. The bike runs through the gears on it while sensors read the power reaching the wheel and the air-to-fuel ratio in the exhaust. That chart tells the tuner exactly where the engine is lean, rich or flat.
Every fuel-injected street bike that comes in for performance work goes on it. The before chart, the adjustments, the after chart: you see the difference in numbers, not in a feeling.
02 · Fuel map & ECU
The fuel map is the table in the bike's computer that sets how much fuel the injectors add at every throttle position and rpm. Stock maps are written for emissions and for a stock bike. Change the pipes, the intake or the cams and that map is wrong.
The shop works with the common tuner platforms for Harley-Davidson and metric bikes, flashes the map, and proves it on the dyno rather than guessing from a canned file.
03 · Parts and tune together
Most horsepower on a Harley comes from three parts: a freer exhaust, a high-flow air cleaner and a cam. The shop sells them as a wholesale dealer through Western Power Sports, installs them, and tunes the bike on the same visit.
One shop, one appointment, one chart at the end that shows what the parts actually made.
04 · Service & repair
Not every visit is about horsepower. Oil and fluids, tires, brakes, chains and belts, batteries and the pre-season check before the first dry weekend on Highway 101 all get the same hands as the dyno work.
Street bikes of every make. Carbureted bikes are welcome here too, they just skip the dyno.
05 · Diagnostics
Check-engine light, a miss at cruise, a bike that runs hot or will not idle: the shop reads the codes, looks at the live data and, where it helps, puts the bike on the dyno to see the problem under load instead of guessing in the driveway.
How a visit goes
Questions riders ask
Yes. Harley is the shop's favorite and most of the parts business, but any fuel-injected street bike goes on the dyno: Indian, Honda, Yamaha, Kawasaki, Suzuki, Triumph, BMW.
Ask the shop about your specific bike and tuner before the work. The shop will tell you plainly what is reversible and what is not.
The bike with a warm engine if you can, your tuner if you already own one, and a list of every part that has been changed since stock.
Ask when you book. The dyno room is loud and the shop keeps it safe, but the owner is happy to show riders the chart.
Horsepower is our goal.
Bring the bike to Astoria. Fuel-injected street bikes go on the dyno; everything else gets the same hands.
Horsepower is our goal.
Custom tuning, dyno runs and aftermarket Harley-Davidson parts on Oregon's North Coast. Wholesale dealer through Western Power Sports.