40-60mph acceleration
Discussion
40-60 I don't know, I wouldn't know where that would be a useful statistic but Clarkson did mention it on a Porsche something or other on a episode of Top Gear. I think it was 2nd gear, 1 second.
I think mid gear acceleration is quite useful though. Fifth Gear did a test with 2 Astra VXR's (Nur and 888 edition IIRC) through a standing and rolling start, 1 won standing, the other won rolling. I would guess the car winning the rolling start test would be better around a track as you're more likely to encounter rolling start style environments than standing start ones, unless you're racing at the Traffic Light GP!
I think mid gear acceleration is quite useful though. Fifth Gear did a test with 2 Astra VXR's (Nur and 888 edition IIRC) through a standing and rolling start, 1 won standing, the other won rolling. I would guess the car winning the rolling start test would be better around a track as you're more likely to encounter rolling start style environments than standing start ones, unless you're racing at the Traffic Light GP!
beerexpressman said:
Newest car listed is 2007!Things have moved on a bit in 12 years.
GT2RS and Pista around 0.75 secs.
Reark said:
Surely the standard 0-60 is enough of an indication?
I can't see a car being quick to 60 then all of a sudden tailing off. Or conversely, a car suddenly becoming quick after 60.... (bearing in mind traction issues)
0-60 is sadly about the most pointless and useless stat there is. Especially with modern high performance cars.I can't see a car being quick to 60 then all of a sudden tailing off. Or conversely, a car suddenly becoming quick after 60.... (bearing in mind traction issues)
There are some big factors that impact 0-60mph, such as driver ability and surface grip levels. And in modern times launch control, which in most cases give a completely useless figure unless you are at drag strip, as you can't use it on the road.
:drive:
F4R said:
Is 40-60mph acceleration a good measure of performance?
I noticed this option in my Torque app yesterday so I thought I'd give it a go.
I recorded 2.5 seconds in my Clio 172 which sounds good to me but have not seen any figures to compare this to.
In reality it is probably a very useful stat for real world road use performance. Although something like 20-80mph might be more interesting.I noticed this option in my Torque app yesterday so I thought I'd give it a go.
I recorded 2.5 seconds in my Clio 172 which sounds good to me but have not seen any figures to compare this to.
I think it was Car & Driver used to do 5-60mph which was also a very interesting 'real world' stat.
The biggest issue with any of these rolling stats is how they are measured and under what conditions.
i.e. I can think of 5 ways off the top of my head:
- Perform a 0-60mph run. Which if recorded correctly will allow you to extract 40-60mph from it.
- Start in the "optimum" gear from a 40mph roll and floor it
- Start in a cruising gear from a 40mph roll and floor it
- Start in a cruising gear from a 40mph roll, down shift to optimum gear and floor it
- Start in a pre-determined gear that isn't for cruising, but may or may not be optimum for the car in question at 40mph and floor it
beerexpressman said:
Great find thank you! In that case my little Clio didn't do badly at all..300bhp/ton said:
0-60 is sadly about the most pointless and useless stat there is. Especially with modern high performance cars.
There are some big factors that impact 0-60mph, such as driver ability and surface grip levels. And in modern times launch control, which in most cases give a completely useless figure unless you are at drag strip, as you can't use it on the road.
No I don't agree with you. OP is looking for an indication on a cars performance right? Manufacturers or whoever officially tests a cars 0-60 time will always (I'd imagine) do it with a capable driver in good conditions. If he asked would 'x car' beat 'y car' then you'd consider aforementioned factors.There are some big factors that impact 0-60mph, such as driver ability and surface grip levels. And in modern times launch control, which in most cases give a completely useless figure unless you are at drag strip, as you can't use it on the road.
There's a big difference between simply taking the 40-60mph segment out of the accel curve for a vehicle accelerating from rest, and the time taken to go from a steady 40mph to then exceed 60. Things like turbo lag, and throttle calibration or even gear selection / downchange etc all play a large part. One reason EVs are so fast in the real world is because they have no lag, so slam the throttle open and they are at max vehicle accel pretty much instantly.......
Reark said:
No I don't agree with you. OP is looking for an indication on a cars performance right? Manufacturers or whoever officially tests a cars 0-60 time will always (I'd imagine) do it with a capable driver in good conditions. If he asked would 'x car' beat 'y car' then you'd consider aforementioned factors.
Capable driver does not really mean the same thing though. Every professional drag racer is capable, but they still win and loose and produce varying times on the same strip with the same car.Good conditions are also very vague. Road testing in winter in the UK vs summer in California will have very different grip levels potentially.
300bhp/ton said:
In reality it is probably a very useful stat for real world road use performance. Although something like 20-80mph might be more interesting.
I think it was Car & Driver used to do 5-60mph which was also a very interesting 'real world' stat.
The biggest issue with any of these rolling stats is how they are measured and under what conditions.
i.e. I can think of 5 ways off the top of my head:
I like the idea of a 20mph to 80mph stat but I'll have to see if my Torque app records this. Again, I'd need something to compare it to though.I think it was Car & Driver used to do 5-60mph which was also a very interesting 'real world' stat.
The biggest issue with any of these rolling stats is how they are measured and under what conditions.
i.e. I can think of 5 ways off the top of my head:
- Perform a 0-60mph run. Which if recorded correctly will allow you to extract 40-60mph from it.
- Start in the "optimum" gear from a 40mph roll and floor it
- Start in a cruising gear from a 40mph roll and floor it
- Start in a cruising gear from a 40mph roll, down shift to optimum gear and floor it
- Start in a pre-determined gear that isn't for cruising, but may or may not be optimum for the car in question at 40mph and floor it
I understand 30-70mph through the gears is a more common mid-range performance indication though.
To record my 40-60mph time, I found a flat, straight road with no cars around and floored it from 30mph. The app then recorded the 40-60mph time using the odb device. I'd still be interested in hearing other people's times though using methods like the ones you mentioned above.
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