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Crazed What difference does 50 kilos really make

My 2.2 JTS at book weight of 1490 Kilos

Power at Flywheel (BHP) : 185
Weight without Driver (KG) : 1490
Power to Weight Ratio (BHP Per Ton) : 126.15
0 - 60 (Secs) : 8.31
0 - 100 (Secs) : 23.15
60 - 100 (Secs) : 14.84
Quarter Mile (Secs) : 16.72
Terminal Speed (MPH) : 84.99
Drag Strip Quarter Mile (Secs) : 16.52
Drag Strip Terminal Speed (MPH) : 86.41

My 2.2 JTS at 1440 Kilos after a 50Kg diet

Power at Flywheel (BHP) : 185
Weight without Driver (KG) : 1440
Power to Weight Ratio (BHP Per Ton) : 130.53
0 - 60 (Secs) : 8.06
0 - 100 (Secs) : 22.21
60 - 100 (Secs) : 14.15
Quarter Mile (Secs) : 16.48
Terminal Speed (MPH) : 86.12
Drag Strip Quarter Mile (Secs) : 16.28
Drag Strip Terminal Speed (MPH) : 87.57

Hardly a massive difference

Note - figures are for 0-60mph not 0-62mph (0-100Kmh).

The site and calculator is well respected and nigh on accurate.

Have a play

Cheers,

Simon

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Re: What difference does 50 kilos really make

Yes but it will make the car more responsive, agile it will brake better and have better fuel economy.
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Re: What difference does 50 kilos really make

8 seconds to 60 is hardly slow, not bad for a car that size i would say.
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Re: What difference does 50 kilos really make

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Yes but it will make the car more responsive, agile it will brake better and have better fuel economy.
A tiny bit better may be but not really the magic bullet everyone is on about

For the record, as I've said before, in real comparative terms, the weight issue is totally overplayed
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Re: What difference does 50 kilos really make

Thats nearly 1 second 0-100 mph, so I guess it would make a noticeable difference. 60 litres of fuel (about the capacity of the tank) weighs about 50kg, and most people say their car goes better with less fuel in it.
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Re: What difference does 50 kilos really make

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Thats nearly 1 second 0-100 mph, so I guess it would make a noticeable difference.
I take it you're having a turkish
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Re: What difference does 50 kilos really make

According to that my car does 0-60 in about 8 secs... which is about right.
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Re: What difference does 50 kilos really make

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Originally Posted by Squadrone Rosso View Post
A tiny bit better may be but not really the magic bullet everyone is on about

For the record, as I've said before, in real comparative terms, the weight issue is totally overplayed
Exactly. If it really made that much difference everybody would be ripping the seats and all the interior fittings out.

If you drive it properly and carefully this car will fly, no matter how heavy it is.
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Re: What difference does 50 kilos really make

Hmmm, my Gt is 75 Kilos heavier than our identically engined 147 and you can really tell the difference in feel and response.

Although having said that it still feels the same when I'm carrying a passenger in the 147 - go figure?
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Re: What difference does 50 kilos really make

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For the record, as I've said before, in real comparative terms, the weight issue is totally overplayed
That's a fun page

So, a 3% loss in weight, leads to a 3% improvement in performance and, presumably, a 3% improvement in fuel economy?

So, it's really more down to the efficiency of the powertrain then. Sounds like the thing to do is wait for the 3l v6 diesel @ 150g/km CO2 that Sakis posted.
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Re: What difference does 50 kilos really make

my girlfriend weighs more than 50kgs and she's only a size10 so lets not get excited. i cant tell the difference in acceleration, braking or handling when she's sat in the passenger seat.
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Re: What difference does 50 kilos really make

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So, a 3% loss in weight, leads to a 3% improvement in performance and, presumably, a 3% improvement in fuel economy?
no not at all, it doesnt work like that.
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Re: What difference does 50 kilos really make

I shaved 110kg from my 147, but its a bit hard to drive standing next to it!
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Re: What difference does 50 kilos really make

Yep, it's all cobblers. Rip everything out so you are sat in a carbon bucket seat with no air con, stereo or soundproofing and then try doing your normal annual mileage and see what fun you would be having.

Different if you live on the moors and commute at 3 in the morning or trackday every weekend I grant you.

I had a 600kg Westfield and it was great fun - but not to go too far. In the winter.
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Re: What difference does 50 kilos really make

Dont think that the majority of people would notice any diffeence in performance / handling or fuel economy as their are many other factors involved.

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Re: What difference does 50 kilos really make

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Originally Posted by Quadrofoglio View Post
Exactly. If it really made that much difference everybody would be ripping the seats and all the interior fittings out.

If you drive it properly and carefully this car will fly, no matter how heavy it is.
Agreed. But some people ahem *BRADLEY*!! would do it anyway!

But his car is for a very different purpose than ours...
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Re: What difference does 50 kilos really make

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But his car is for a very different purpose than ours...
Pulling chicks?
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Re: What difference does 50 kilos really make

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no not at all, it doesnt work like that.
Yeah, and.......
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Re: What difference does 50 kilos really make

Jeeeeeez, the irony of this Forum!!

For months and months and months the big complaint about the 159 platform has been about flab - oh how we all longed for a lighterweight version it would be more dynamic, it would be more fuel efficient, it would feel like Alfas of old etc etc etc.

Now that they begin to deliver we say it doesn't really matter....

Nowt so queer as folk....
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Wave Re: What difference does 50 kilos really make

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Nowt so queer as folk....
You mean nowt so queer as the people that have never driven 159s or Breras but like to trot out the "overweight" line at every opportunity?
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Re: What difference does 50 kilos really make

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Nowt so queer as folk....
Exactly. I don't think you'll find many actual owners moaning about the weight

Besides, I'd rather 6 star NCAP and a few extra kilos any day
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Re: What difference does 50 kilos really make

I've driven several versions of both and they give me a satisfying impression of substantiality, which is a testimony to their engineering integrity. They are overengineered the way Mercs used to be and I like that.

My angle is mainly one of fuel efficiency and if the 2wd versions answers to those concerns then as afr as I'm concerned the cars' will be darned near ideal.
But let's not kid ourselves 18-20 mpg from a bang up to date 3.2 v6 simply isn't acceptable and 25-35 mpg from a JTDM borders on the same.
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Re: What difference does 50 kilos really make

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But let's not kid ourselves 18-20 mpg from a bang up to date 3.2 v6 simply isn't acceptable and 25-35 mpg from a JTDM borders on the same.
Agreed. But I suspect that's not entirely down to the weight.
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Re: What difference does 50 kilos really make

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Agreed. But I suspect that's not entirely down to the weight.
No I think a heavy right foot may also contibute to this.

I an quite happy with the fuel consumption of my 2.2 but I do drive with a light foot.

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Re: What difference does 50 kilos really make

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No I think a heavy right foot may also contibute to this.
This is very true.

I blame it on living in a very hilly area.
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