Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?
toby1234abc:
Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?
Is there not a rule of thumb of 10bhp per tonne carried , i.e 44tonne x 10bhp = 440bhp 
young trucker:
toby1234abc:
Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?Is there not a rule of thumb of 10bhp per tonne carried , i.e 44tonne x 10bhp = 440bhp
Germany used to work on 9hp per tonne iirc
That was what i was after,some old timer me told what it was,i forgot the ratios.Ta.
Wheel Nut:
young trucker:
toby1234abc:
Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?Is there not a rule of thumb of 10bhp per tonne carried , i.e 44tonne x 10bhp = 440bhp
Germany used to work on 9hp per tonne iirc
So, to conclude from that, all those who have 620/730 V8 scanias and 660 Volvo’s are trying to make up for ‘other’ deficiencies, such as The Small ■■■■■ Syndrome
shuttlespanker:
Wheel Nut:
young trucker:
toby1234abc:
Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?Is there not a rule of thumb of 10bhp per tonne carried , i.e 44tonne x 10bhp = 440bhp
Germany used to work on 9hp per tonne iirc
So, to conclude from that, all those who have 620/730 V8 scanias and 660 Volvo’s are trying to make up for ‘other’ deficiencies, such as The Small ■■■■■ Syndrome
The first compulsory power to weight ratio I remember in the UK was when 38 ton came in, I believe the truck needed 6bhp / ton to qualify, Volvo F7’s didn’t qualify as they fell slightly short of this figure (as did a few others) so only ran at 36 ton on 5 axles. I was driving a Daf 3300 at the time so I was well within the P to W ratio requirements.
August 1983 wasn’t it??
Ross.
Ive questions operators why the hell they use scania v8s to pull fridges and they claim they get better mpg than my daf 410.Not sure if this is true or not.
doesn’t always work !
where’s the queue of drivers waiting to drive the 75hp 7.5.tonners, 180hp 4 wheelers, 260hp 6 wheelers and the mighty 320hp 8 wheelers 
shuttlespanker:
Wheel Nut:
young trucker:
toby1234abc:
Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?Is there not a rule of thumb of 10bhp per tonne carried , i.e 44tonne x 10bhp = 440bhp
Germany used to work on 9hp per tonne iirc
So, to conclude from that, all those who have 620/730 V8 scanias and 660 Volvo’s are trying to make up for ‘other’ deficiencies, such as The Small ■■■■■ Syndrome
Does that include 600 BHP Daf’s? 
although DAF do not do anything above 530 (510 now), yes, it would include those who have had it remapped upto stupid figures
SOME have 530 daf’s with EXTRA long cabs to fit there ego’s in 
Mind you proberly need 530 bhp to pull all that MDF about
Iv got 4bhp lawnmower that is probably less than 40kgs, really motors on the hills 
.
Is interesting though that there is a law regarding power to weight. Had heard before about 10bhp per ton being the desired sort of target. Though have a law that bases it only on horsepower alone is strange, without looking at torque. A FH13 440 has more torque than a FH12 460 and from what i hear they go better too 
.
As for high power units, there has always been that argument probably since the 140 scania. Each to there own, personally i think there is somthing to be said about having a machine that is well on top of the job for both good journey times and mpg. (driver dependant)
JOBE:
SOME have 530 daf’s with EXTRA long cabs to fit there ego’s inMind you proberly need 530 bhp to pull all that MDF about
correct, but it is still not as long as a Scrapia Longline
anyway, did you ever manage to get your ego high enough to get any decent pics of the damage to your 620 that hit the bridge at Snetterton?
shuttlespanker:
Wheel Nut:
young trucker:
toby1234abc:
Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?Is there not a rule of thumb of 10bhp per tonne carried , i.e 44tonne x 10bhp = 440bhp
Germany used to work on 9hp per tonne iirc
So, to conclude from that, all those who have 620/730 V8 scanias and 660 Volvo’s are trying to make up for ‘other’ deficiencies, such as The Small ■■■■■ Syndrome
This must apply to those in hideous short wheelbase long cabbed 530 dafts, and we do have it FROM good authority that the small ■■■■■ syndrome fits this type of driver… YOUR WIFE!!!
Shuttlecock sorry no pictures and if you would listen it didn’t hit the bridge,and yes you are right when my scanias are scrap they will still be worth more than your waste of space DAFS.
I fogot u gone up in the world and brought a German u boat 
I think you might be jealous because you can’t afford any reel trucks? 
Chin up mate if you come to Snetterton next year i’ll let you have a go in a proper truck i hear there smashing trucks.
Swiss was always 10hp per ton. For TIR it was mostly 350hp in the old days but I’ve seen the latest Topline V8’ chassis & trailer tippers hauling cobbles with dinky little bodies grossing 28t.
In Finland there is a minimum of 420hp for 60 tonne combinations. I’ve done it with 420’s but it’s not fun; a 460, or even better a 480, makes a very noticable difference (probably due to torque characteristics as mentioned above by NB12).
shuttlespanker:
Wheel Nut:
young trucker:
toby1234abc:
Is there a mathematical formulae to work out how much power needed in relation to the amount of weight,in kilo watts perhaps.We know a 210 horsepower engine wont be any good for a 44 ton MGW.How do the manufacturers test for this,using computer programmes?Is there not a rule of thumb of 10bhp per tonne carried , i.e 44tonne x 10bhp = 440bhp
Germany used to work on 9hp per tonne iirc
So, to conclude from that, all those who have 620/730 V8 scanias and 660 Volvo’s are trying to make up for ‘other’ deficiencies, such as The Small ■■■■■ Syndrome
says the man with the largest day cab truck with 530 bhp