Diehard go-fast boating fans and gearheads in general can stop wondering what Mercury Formula For Boat And Stream Pdf Racing will do next with its four-stroke V-8 outboard engine Formula 1 Boat Kit program. The gold standard in powerboat racing circuit competition and professionalism, the six-race F1H2O series attracted nine teams with 18 drivers from 12 countries in Look for a follow-up interview with reigning two-time F1 H2O world champion Shaun Torrente on speedonthewater.
Producing hp at the propeller shaft, the naturally aspirated APX is based on a modified version of the Mercury Racing R 4. The compression ratio is increased from to and peak engine operating speed is boosted from 6, rpm to 7, rpm in the APX version.
The powerhead is fitted with a short-runner intake manifold mated to a cold-air induction system vented through the cowl. The engine calibration is modified to take full advantage of the powerhead modifications. The APX uses a volt starter for faster dock-side starting in competition.
A digital control offers smooth and precise throttle application. The UIM Average Speed Of Boat Formula United supports full implementation of this engine, which demonstrates our commitment to lowering carbon levels in our sport. An overdrive spur gearset between the crankshaft and the gearcase increases the input shaft speed to the gearcase to match that of the current 9,rpm two-stroke race engine, and produces the left-hand propeller rotation desired for Formula 1 circuit racing.
The overdrive gears are designed to accommodate multiple gear ratios, so the teams can select the ratio that best fits each particular race. With the new APX we can trade some torque to increase propeller speed via the overdrive, which will also improve the life span of the gears. The top cowl and driveshaft housing covers are lightweight carbon-fiber composite.
The cowl features robust latching and sealing systems, while the driveshaft cover has quick-release fasteners to ease access to the midsection. Mercury Racing 10W MRX engine oil, a new high-performance full-synthetic lubricant, was engineered alongside the Mercury Racing APX outboard and specifically formulated to withstand the extreme heat and stress the engine will encounter during F1 tunnel boat competition.
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