Does Bhp/tonne Make Sense

VBV · 19th March 2009, 16:25

IMHO, its BHP/ton @ xyz rpm that is important. Similarly for the torque its the rpm that acheives it that actually characterizes an engine. Frankly the curve (BHP or nm v/s rpm) is a very good indication, but if we were to look at one single number, then it would have to be at a single rpm.

Having said this, this figure does not really give us the feeling of safety or the higher momentum a heavier vehicle gives.

equinox22 · 19th March 2009, 19:08

Quote:

Originally Posted by supremeBaleno

At what rpm does the revlimiter cut-in in the Vtec ?

In mine Vtec cuts in at 6000 rpm. Max torque is at 6100 rpm and max power at 7800 rpm.

girishglg · 24th October 2011, 18:00

Bhp/Tonne takes in a new dimension in every segment. Take the latest small hatch for example. A colleague of mine seriously contemplating the Eon had basic query as to how it was more powerful compared to an Alto std even when both the engines were rated at 800cc. The actual fact of the matter is that Eon is the second most powerful of the entry lot with 77 BHP/ Tonne only behind Alto k10 which pips every one with 88 BHP/Tonne. Check the official review for detailed comparison at -
http://www.team-bhp.com/forum/offici...ml#post2556445

The other point is the entry users have to diligently use this power to get the optimum performance and mileage else would return disappointed with their choice of wheels.

oxyzen · 24th October 2011, 21:20

I would say what matters even more is the torque curve or the power curve across the RPM range. Yes the torque per tonne makes even more sense.

But then you cant still be sure if the drive will be good enough. Like the gear ratios. If you get them wrong and the car may be a total disappointment. The next thing is engine tuning it also depends how much time it takes before it responds. It is quite amazing how the same engine (with same torque curve) on Swift & Ritz behave differently.

19th March 2009, 16:25	#31
VBV BHPian Join Date: May 2007 Location: Bangalore Posts: 227 Thanked: 6 Times	IMHO, its BHP/ton @ xyz rpm that is important. Similarly for the torque its the rpm that acheives it that actually characterizes an engine. Frankly the curve (BHP or nm v/s rpm) is a very good indication, but if we were to look at one single number, then it would have to be at a single rpm. Having said this, this figure does not really give us the feeling of safety or the higher momentum a heavier vehicle gives.
	() Thanks

24th October 2011, 18:00	#33
girishglg Senior - BHPian Join Date: Oct 2008 Location: KA-05 Posts: 1,164 Thanked: 558 Times View My Garage	Re: Does Bhp/tonne Make Sense Bhp/Tonne takes in a new dimension in every segment. Take the latest small hatch for example. A colleague of mine seriously contemplating the Eon had basic query as to how it was more powerful compared to an Alto std even when both the engines were rated at 800cc. The actual fact of the matter is that Eon is the second most powerful of the entry lot with 77 BHP/ Tonne only behind Alto k10 which pips every one with 88 BHP/Tonne. Check the official review for detailed comparison at - http://www.team-bhp.com/forum/offici...ml#post2556445 The other point is the entry users have to diligently use this power to get the optimum performance and mileage else would return disappointed with their choice of wheels.
	() Thanks

24th October 2011, 21:20	#34
oxyzen Senior - BHPian Join Date: Feb 2010 Location: Pune Posts: 1,051 Thanked: 395 Times	Re: Does Bhp/tonne Make Sense I would say what matters even more is the torque curve or the power curve across the RPM range. Yes the torque per tonne makes even more sense. But then you cant still be sure if the drive will be good enough. Like the gear ratios. If you get them wrong and the car may be a total disappointment. The next thing is engine tuning it also depends how much time it takes before it responds. It is quite amazing how the same engine (with same torque curve) on Swift & Ritz behave differently.
	() Thanks