Thread: Some better spy shots at last!

Originally Posted by Zeros

Does anyone else find it strange that despite all the refinements over the years, 4 cylinder 4x4s still use 10-12 litres/100km and V8’s still use 14-22litrrs/100km?

I don't find it strange. While fuel economy has stayed the same, the amount of torque produced is much higher all through the rev range so the efficiency gains were put back into performance rather than frugality.

Originally Posted by Vern

You don't have to believe it, but thats what it does, the vvt in the later models has improved economy by a couple of L/100, oh and its 5.6L engine thank you very much

5.6L !!! Jeepers!

My 4.6 high comp V8 Rover in a very heavy D2 fully laden gets 13.5 liters per 100k on a long highway run (lift, big chunky tyres, roof rack) so a 5.6 with a hell of a lot of tech in a similar weight or slightly heavier should get 12 or so on the highway. Can easily see that. Small diesels when heavily laden are not a thing of beauty.

Cheers

Modern petrol motors almost match the diesels, in a small car I wouldn't bother with an oil burner. Once you get over 2 ton the diesels come into their own but capacity still needs to match the mass it propels.

Originally Posted by Vern

You don't have to believe it, but thats what it does, the vvt in the later models has improved economy by a couple of L/100, oh and its 5.6L engine thank you very much

Putting this in perspective though, that economy is achieved by shutting down 4 of the 8 cylinders when not required.

Originally Posted by loanrangie

Modern petrol motors almost match the diesels, in a small car I wouldn't bother with an oil burner. Once you get over 2 ton the diesels come into their own but capacity still needs to match the mass it propels.

Yep anyone who buys a diesel Golf over a petrol Mazda 3 for eg and thinks they are ahead in real world economy needs to sit down and think some more.

Cheers

Originally Posted by VladTepes

Putting this in perspective though, that economy is achieved by shutting down 4 of the 8 cylinders when not required.

Wrong. The vk56vd does not ever shut off any cylinders. What vvel (variable valve event lift) does is change the cam hight on the intake and exhaust side depending on throttle input. This is what allows the 5.6 to make 500nm at 1600rpm and when combined with direct injection instant power anywhere in the rev range. There is no need to ever ring it's neck

The Petrol / Deisel argument is moot for me . The Deisel is dead as far as I’m concerned. And its not what your thinking,

The Deisel has so much crap on it , like the petrol of the 80’s. . The EGR , DPF & SCR. Have done it for me. . They have taken the reliability and long term dependability away from the Deisel. I’ll chose Petrol over Deisel every time now . But bring on Electrics.