New Zenos E10 - Ford RS engine as standard!!!!!
New Zenos E10 - Ford RS engine as standard!!!!!
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Discussion

v6charger

Original Poster:

28 posts

149 months

Thursday 5th November 2015
quotequote all
Just seen an article in Autocar about the above - anyone good at maths work out what the torque per ton is assuming the RS Focus outputs????

I did the numbers and I'm not sure there's anything else close ( unless I can't add up! ) - a league table maybe??

500 Bhp per ton is one thing but out of corners this things gonna be mentall!!!!!

v6charger

Original Poster:

28 posts

149 months

Friday 6th November 2015
quotequote all
Walked past am Elise 220R in Frankfurt airport yesterday - new Zenos with RS engine fitted will have 90% more torque according to the spec sheet in its window!!!!!!!!!!!

Surely you wont see it for dust on corner exit!

Thats before you you look at a flatter torque curve with a turbo vs the supercharger curve of others.

Will make for interesting head to head tests in the new year!!!!!!



v6charger

Original Poster:

28 posts

149 months

Friday 6th November 2015
quotequote all
Clearly bored at work!

Nm/tonne
Caparo T1 764
Zenos E10 679
Ferrari F12 TDF 498
McLaren 675 LT 569

Edited by v6charger on Friday 6th November 13:23

T0MMY

1,562 posts

198 months

Friday 6th November 2015
quotequote all
Torque/tonne is pretty meaningless to be fair, the BHP/tonne is where the interest lies!

e.g.

My two cars:
A 145 lb.ft/tonne, 0-60 4.5 seconds
B 147 lb.ft/tonne, 0-60 10.6 seconds

Or to put it another way...
F1 car 370 lb.ft/tonne
HGV 369 lb.ft/tonne (randomly googled Volvo, just the tractor bit minus trailer)

Torque/weight is only useful for exaggerating how fast your diesel car islaugh

T0MMY

1,562 posts

198 months

Friday 6th November 2015
quotequote all
v6charger said:
Clearly bored at work!

Nm/tonne
Caparo T1 764
Zenos E10 679
Ferrari F12 TDF 498
McLaren 675 LT 569
Haven't checked but those are surely bhp/tonne?

v6charger

Original Poster:

28 posts

149 months

Friday 6th November 2015
quotequote all
Nope - nm of torques

And Bhp per tonne is the bragging rights - torques what matters off corners not the other way round wink

T0MMY

1,562 posts

198 months

Friday 6th November 2015
quotequote all
v6charger said:
Nope - nm of torques

And Bhp per tonne is the bragging rights - torques what matters off corners not the other way round wink
Erm...so given the figures I posted, the HGV must be considerably faster than either of my cars off a corner right?

BHP is all that counts...I think what you're getting at is BHP at lower revs. Most people seem to have this weird idea that torque=low down power and bhp=top end power.


v6charger

Original Poster:

28 posts

149 months

Friday 6th November 2015
quotequote all
Look st the torque curve and off corner performance of a turbod car vs an NA and you still believe what your saying?
Torque for go - horses for show !

T0MMY

1,562 posts

198 months

Friday 6th November 2015
quotequote all
v6charger said:
Look st the torque curve and off corner performance of a turbod car vs an NA and you still believe what your saying?
Torque for go - horses for show !
I'm seriously starting to wonder if you're trolling here to be honest as this is just silly.

Torque is meaningless unless you also consider the engine revs (which is what you're doing when you talk about power). I could forgive your common misunderstanding were it not for the fact I posted up some figures that you seem to have ignored completely! An F1 car makes less torque/tonne than any car on your list and is quite clearly faster than any of them by some margin. All the vehicles I mentioned have differing performance that is clearly not related to the torque/tonne. Had I included BHP/Tonne figures, there would have been an obvious correlation with performance:

Car A 300bhp/tonne
Car B 80bhp/tonne
F1 car ~1000bhp/tonne
HGV ~30 bhp/tonne

...do you see what I mean?

I'm heading out for a few shandys but your homework for tonight is to read about the relationship between torque and powerbeer



v6charger

Original Poster:

28 posts

149 months

Friday 6th November 2015
quotequote all
Anyone else care to comment??


Paul_M3

2,515 posts

207 months

Friday 6th November 2015
quotequote all
v6charger said:
Anyone else care to comment??
Yes. Tommy is right and you are wrong.

rossw46

1,293 posts

182 months

Friday 6th November 2015
quotequote all
Paul_M3 said:
v6charger said:
Anyone else care to comment??
Yes. Tommy is right and you are wrong.
What Paul_M3 said.

v6charger

Original Poster:

28 posts

149 months

Friday 6th November 2015
quotequote all
Carol Shelby once said torque wins races, horse power sells cars.


Better let him know he's wrong too


What would he know?

And if you don't know who he is / google him!


PMSL

T0MMY

1,562 posts

198 months

Saturday 7th November 2015
quotequote all
v6charger said:
Carol Shelby once said torque wins races, horse power sells cars.


Better let him know he's wrong too


What would he know?

And if you don't know who he is / google him!


PMSL
Thanks, I know who he is and he's wrong too, as he'd quickly realise if he tried to outdrag a 370 ft.lb/tonne F1 car in his 460 ft.lb/tonne Cobra 427 S/C wink

I sort of hoped I'd revisit this thread to find you'd had some sort of epiphany but apparently not. I'm finding it hard to believe you haven't grasped this yet but think on this...if torque is more important than power, why is the F1 car massively quicker than the considerably more torquey Cobra 427 (assuming you appreciate that it is of course)?



TheEnd

15,370 posts

210 months

Saturday 7th November 2015
quotequote all
What's the Fast Car Ratio?

ie, Scania - 1 side exit exhaust / 2 wipers = 0.5

Mclaren F1 - 4 / 1 = 4

Pedal bike 0 / 0 = 0

Far more accurate method than torque per ton.




GravelBen

16,314 posts

252 months

Saturday 7th November 2015
quotequote all
T0MMY said:
Torque/tonne is pretty meaningless to be fair, the BHP/tonne is where the interest lies!
Or if we're being pedantic, [area beneath the used part of the power curve]/tonne. hehe

Toltec

7,179 posts

245 months

Saturday 7th November 2015
quotequote all
TheEnd said:
Pedal bike 0 / 0 = 0
Sorry, you just gave cyclists infinite power.


T0MMY

1,562 posts

198 months

Saturday 7th November 2015
quotequote all
GravelBen said:
Or if we're being pedantic, [area beneath the used part of the power curve]/tonne. hehe
Quite right, I made the same pedantic point in the 120d vs 130i thread but thought it best not to confuse the issue on this one laugh


v6charger

Original Poster:

28 posts

149 months

Saturday 7th November 2015
quotequote all
Because of torque multiplication through the gearbox and the high rpm in an F1 car.

Horsepower = torque x rpm divided by 5252

Try making horsepower without torque in that calculation smile

Off to my Dyno to make some more torques!

ATG

22,830 posts

294 months

Saturday 7th November 2015
quotequote all
v6charger said:
Nope - nm of torques
At risk of being called pedantic, "torque in Nm".

Peak power tells you quite a lot, peak torque tells you almost nothing (though you could probably guess the characteristics of the engine from it). The torque and power curves contain exactly the same information as each other.

The rotational stuff usually causes confusion, so think about forces in a straight line. A bookshelf can produce a huge upwards force, but it isn't accelerating the books. A book shelf produces no power. So if you quote the maximum force a bookshelf can produce, which is equivalent to quoting an engines max torque, and it is a huge force, obviously you shouldn't conclude it is going to throw books into the stratosphere. Similarly you can't draw any conclusions about a car's acceleration from its engine's max torque.