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[Rods2]

As it is now competing with the bus thread. What the average 0-60 mph time for a bus and also the world record?

[Webby the Bear]

Curiosity is one thing, but your car has matched the book time, albeit under different conditions yet you're still not satisfied...

Not sure what you're hoping to achieve you cannot replicate the weather (temp/wind speed/direction/humidity) Road surface (structure/grip coefficient/moisture content) tyres (model/tread depth/temperature/pressure) mood of the driver conducting the test etc, etc

I would take the book time and be greatful...

The reason for further investigation 

[Webby the Bear]

So 9.5 seconds isn't nearly accurate enough then

Well, it's odd how it's come about. . .

I was happy that it was all good and then the spanner was thrown in to the works when Vauxhall confirmed their testing conditions were different to mine. So naturally, I have to investigate this.

I'll however be doing it on an analytical basis though as I really don't want to do the torque braking again. Yeah, I'm sure it,ll be ok but I can't be bothered to take the risk as I don't have the time to fit a gearbox at the moment 

If your not doing the stall start then replicating the rest is pointless,Vauxhall would have thrashed the car to its limits

I did do the stall start as per my last video and, as you suggested prior to me doing it, it works!!! 

The thing I want to know (albeit looking ball park figures) is that the extra 200kg that Vauxhall chuck on in addition to standard car AND full tank is that my motor wil do there or thereabouts. cos I know that when I get a passenger in it feels slower. so just wanting to check that 

[05omegav6]

But if the humidity or air temperature are different, then the results will be different... there are too many variables to be able to replicate it exactly... and as you don't know what any of these variable values were at the time of the original test, you can only guess... which surely instantly renders your result to a ball park 

[Field Marshal Dr. Opti]

As it is now competing with the bus thread. What the average 0-60 mph time for a bus and also the world record?

Probably about the same as a certain lurid green 1.4 litre Astra.

I'll take a guess........56 seconds.

[05omegav6]

Yes, but is that 56 seconds fully loaded or empty? What tyre pressures Was it damp? Was the bus black or a different colour, as we know how much of a difference that can make too... Would and empty reb bus be quicker than a full black one? Was the test driver ginger?

[Field Marshal Dr. Opti]

Yes, but is that 56 seconds fully loaded or empty? What tyre pressures Was it damp? Was the bus black or a different colour, as we know how much of a difference that can make too... Would and empty reb bus be quicker than a full black one? Was the test driver ginger?

Her pubes were certainly ginger.

[Webby the Bear]

But if the humidity or air temperature are different, then the results will be different... there are too many variables to be able to replicate it exactly... and as you don't know what any of these variable values were at the time of the original test, you can only guess... which surely instantly renders your result to a ball park 

Fair comment Al. but would air temp/humidity have more of an effect than, for example, an extra 200kgon board?

[05omegav6]

Possibly, especially if you add altitude to the mix as well...

Point is, unless you drive the exact same car, on the exact same road, at the exact same time then your results will always be different...

[Broomies Mate]

Well, this is getting a little silly now, isn't it?

Webby - As has been explained before;

The book figures are used as a guide, I would think anywhere 10% plus or minus would be more than accurate for a car rolling off the production line.  Factor in how an engine becomes worn and tired after xxxxx miles and other smaller factors, air temperature, air pressure, rolling resistance (road surface, tyre compound etc).... and you should be looking at more like 15-20% difference.

If you want to compare your car to a same-spec, same weight vehicle, organise a meet at Santa Pod (or other drag strip) and invite others to put their car's against yours!




Thinking about it, how does your car match up with the book 'guide' for MPG? 

[biggriffin]

Page 23 and there's more

[Webby the Bear]

I totally get where youre coming from. I'm just curious that's all (easy STEMO) 

[Rods2]

As this is marketing talk, I'm sure some manufacturers are going to be much more 'optimistic' than others. A bit like quoted fuel consumption figures and real world ones as these are also important for marketing speak and sales, where we know they are an accurate reflection on what Joe Bloggs can expect to achieve, not!

Even if something is specified like the EU fuel consumption tests, they are always open to 'interpretation' on what is a 'production' specification and 'normal' driving!

A few years a go where 600 and 1000cc Supersport bike markets are very competitive, not only with performance but also being the lightest in class. Kerb weight varied considerably from quoted to actual and when the bike manufacturers were called out over this, some admitted it didn't include batteries, fuel, oil, brake fluid etc., etc!!!

[Webby the Bear]

Rods that's exactly my point for wanting to weigh the car. If mine is considerably heavier that would make sense 

But I won't keep boring and annoying folk. I'll get the car weighed and then I'll mathematically work out where the car would be.

[biggriffin]

Come on young bear don't give up.