Power to weight ratio

[mobile S4]

Was reading an article on TT RS http://www.forbes.com/sites/jasonfogelson/2012/10/30/2012-audi-tt-rs-test-drive-and-review-the-power-to-surprise/

Has interesting stats on power to weight ratios:

TT RS - 9.18

Lamborghini Aventador - 4.96
Porsche 911 - 8.69
Lexus IS-F - 9.09
Porsche Cayman - 11.31
Subaru BR-Z - 13.81
Smart Pure Coupe - 25.83

and (not in article but to keep this relevant)...

our B8 S4 - 11.5

[MrFunk]

Excuse my ignorance. 9.18? How is that translated? What does 9 stand for & 18?

[Schadenfreude]

Excuse my ignorance. 9.18? How is that translated? What does 9 stand for & 18?

Pounds per horsepower. 9.18 x 360 (I think that's the claimed HP for the TT-RS = 3,304.8.

[2.7taudi]

Excuse my ignorance. 9.18? How is that translated? What does 9 stand for & 18?

Th lower the better and less weight per horses.
The larger, the heavier.


Sent from my iPhone.

[zcd2.7t]

...... our B8 S4 - 11.5

It's worth bearing in mind that though the 3.0T is RATED at 333hp (which matches perfectly the 11.5 lbs/hp figure with a weight of 3840 lbs), it actually produces more like 360+hp, making the true figure 10.66 lbs./hp.

As far as I'm aware, Audi is the current leader in underrating their engines' output.... ;-)

[Monsoon]

The pounds/hp chart goes something like this:

over 15 = Not fast enough to be fun
12-15 = Sporty and probably handles well, but not really fast
10-12 = Starting to feel a little shove in the back
8-10 = Fast enough to make no apologies to anybody. Probably all you really need on the street.
6-8 = Current definition of truly fast car
below 6 = Current gen Supercar/Hypercar, silly scary fast, soon to be crashed on You Tube video.
1.5 = F1 car
0.13 = Top Fuel Dragster

[Monsoon]

It's worth bearing in mind that though the 3.0T is RATED at 333hp (which matches perfectly the 11.5 lbs/hp figure with a weight of 3840 lbs), it actually produces more like 360+hp, making the true figure 10.66 lbs./hp.

As far as I'm aware, Audi is the current leader in underrating their engines' output.... ;-)

Nissan plays the underrating game pretty well with the GTR.

[S4charged]

The pounds/hp chart goes something like this:

over 15 = Not fast enough to be fun
12-15 = Sporty and probably handles well, but not really fast
10-12 = Starting to feel a little shove in the back
8-10 = Fast enough to make no apologies to anybody. Probably all you really need on the street.
6-8 = Current definition of truly fast car
below 6 = Current gen Supercar/Hypercar, silly scary fast, soon to be crashed on You Tube video.
1.5 = F1 car
0.13 = Top Fuel Dragster

I like that chart.


Nissan plays the underrating game pretty well with the GTR.

True. Each motor is hand built, so each one will dyno different.

a stock pre 2012 dynos at around 430ahwp





on a side note... b8 s4 SC is underated, so is the 03-04 cobra SC... maybe its a supercharger thing

[MrFunk]

So for those that are tuned running about 450hp - that number is more like 8.53? "Fast enough to make no apologies to anybody. Probably all you really need on the street." fast? [drive]

[mobile S4]

How do we account for driver weight?

http://imageshack.us/a/img824/4567/fatchickcar.jpg

[Monsoon]

As the great Dick Enberg says.........Oh my !!!!!!!!

[MrFunk]

"Hells yeah - my 77' chevette has two airbags!"