![]() ![]() Optimal cruise was found at 4000rpm which returned 26 knots at 34 litres per hour giving us an effective range, with 10% in reserve, of 145 Nm.Īt optimal cruise, the fuel burn rate of 0.74Nm or 1.37km per litre is fairly good. This is mainly down to the Duopro system offering unrivalled grip off the mark but also thanks to the engines variable valve timing holding exhaust and intake valves open longer to allow more gases in and out plus the cleaner, stronger burn of the direct injection. ![]() The combo in the Whittley SL22 offers exceptional holeshot. This is heavier than outboard motors of the same horse power, by almost a factor of two, but is on par with other comparable inboards like the MerCruiser V6 marien engine. Obviously environmental awareness and efficiency were major draw cards too.Ĭomplete with Duoprop leg and the fitted FH-4 stainless steel props, weight is around 404kg for the combination. Whittley chose the Volvo 240C for its weight advantage, being an all-aluminium block plus for the benefit of access to the marvellous Duoprop leg. Browse our archive our huge archive of Whittley boat reviews.It has a sharp deadrise at 23 degrees and a fine entry angle. A hull weighs around 1100kg is 6.5m LOA and has a beam of 2.26m. The review boat was a Whittley SL Sea Legend 22, a fibreglass fishing boat designed or for offshore use and family boating. This leads to better torque, lower fuel consumption and cleaner burning of fuel. Variable valve control changes the exhaust and inlet valve timing to maximise exhaust escape and air intake. Fuel is injected directly into the combustion chamber at extreme pressures (up to 2250psi) which atomises the fuel allowing for better combustion which reduces emissions and fuel use. The Volvo Penta 240C, like its lower and higher horsepower sisters, features the latest in car-tech in direct injection and variable valve control. In the market for a number of years, the-counter rotating marine engine system has proven its worth plenty of times and this set up, running Stainless Steel FH-4, three-blade propellers delivered the grip and acceleration we have grown to love. The 240C is mated to the famous and exceptional Volvo Duoprop system. ![]()
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