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POWER A PLENTY
Page 56
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The iveco Daily range is to be revamped with a new engine, transmission and stability control
system. Andy Salter takes a closer look.
Continuous product development is the current catchphrase of the truck and van manufacturers as evolution replaces revolution in the CV design process. Iveco is no different; following the introduction of the 2.3-litre engine in the Daily two years ago,the company is continuing to upgrade its line-up with a host of new goodies due for launch next year.
The principal changes are a new 3-litre engine with a claimed 10`Y. fuel economy improvement and an all-new automated manual transmission. But the two won't initially be available together — the auto box is reserved for the lower torque 2.3-litre engine.
The 3-litre engine, built at Iveco's Sofim Light-duty engine plant in Italy, is an all-new design rated at 136hp and 166hp and designated 3.0 HPI and 10 HPT, respectively. A six speed overdrive gearbox has been developed to sit behind the powerful new engine.
The DOHC four-valves-per-cylinder in-line four features a common-rail fuel systern.The more powerful version gets a variablegeometry turbocharger giving a very wide torque band.Top torque ratings are 340 and 380Nm,giving the 3-litre newcomer a 19% torque advantage over its 2.8-litre predecessor.
In addition to the uprated specs the new engine also boasts a 33% extension in its service intervals;it can now go 40,000km between visits to the workshop. And while Iveco fills the engine with synthetic oil at the factory,the extended service intervals do not depend on operators using this expensive lubricant thereafter.
The automated transmission, developed in collaboration with ZF,combin es electronic actuators with a mechanical transinission.The simple dash-mounted joystick control will improve cross-cab access.The transmission will be available with the 2.3-litre engine from February next year.
On the road
"Flying machine" is the first phrase that springs to mind after a short spell behind the wheel of the 166hp Daily.In fact we found the power-to-weight ratio— the vans were loaded to approximately three tonnes— too raw for our tastes as we tore up through the gears.
For blue-light work or operating at weights over 3.5 tonnes the high-power Iveco will be ideal, as the variable geometry turbocharger ensures excellent response throughout the rev range. But for all other applications we reckon the top power machine is overkill and the equally effective 136hp model will be more than adequate. Its power delivery is much smoother,giving a good balance between power and torque.
All 3-litre machines come with a new sixspeed manual transmission.The gearshift lacks some smoothness hut the gears are well spaced and nicely matched to the engine's output.
Iveco claims a 3dB(A) noise reduction for the new engine over its 2.8-litre predecessor— that's equivalent to halving the noise levels. Having driven a number of van and chassiscab versions of the new motor we're not inclined to dispute this claim. Whether idling,