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BOFH
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7,560 Posts
Discussion Starter #1 (Edited)
Just an interesting site for all those who want to work out there theroretical 1/4 time.

http://www.web-cars.com/math/qtr_mile.html

Remember, add the weight of the car, driver and fuel in pounds and the engine hp (not Kw).

(weight calc is here: http://www.worldwidemetric.com/metcal.htm )

It seems relatively accruate however it has some errors as it says an AU XR6 VCT should be quicker than the HP, which of cours, it's not.

Mine came back with:

Car weight: 3681 lbs.
Horsepower: 230 hp
Configuration: Rear Wheel Drive

Results
Quarter Mile Acceleration: 15.917 seconds.
Terminal speed: 92.8658 mph.
 

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Experimental Racer#6
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8,192 Posts
Well mines pretty close to what i had last week

Car weight: 3600 lbs.
Horsepower: 247 hp
Configuration: Rear Wheel Drive


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Results
Quarter Mile Acceleration: 15.429 seconds.
Terminal speed: 95.8157 mph.

Times are near identical, but Mph is quicker.
 

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3FB Educator!
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527 Posts
Well I wonder?

Car weight: 3703 lbs.
Horsepower: 313.56 hp
Configuration: Rear Wheel Drive
Quarter Mile Acceleration: 14.384 seconds.
Terminal speed: 102.7692 mph.

This is what I got,EL XR8.
 

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Falcontastic.
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6,039 Posts
O,K so how much does an AU II XR8 weigh in at,can anybody help?.
 

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Rip Up The Track Join OFR
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6,021 Posts

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Village Idiot
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2,526 Posts
hmm i got

Car weight: 3595 lbs.
Horsepower: 210 hp
Configuration: Rear Wheel Drive


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Results
Quarter Mile Acceleration: 16.279 seconds.
Terminal speed: 90.8057 mph.

Didnt know how much power to add for the exhaust, so thts just standard power

But i hope it would be quiker than that. Thought mid-high 15's??
 

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Village Idiot
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2,526 Posts
If i add 15hp fo rthe exhaust it drops to 15.908.
 

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BOFH
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7,560 Posts
Discussion Starter #9
Just remember not to take it all to serious. Remember, it ignores things like transmission, gear ratios and final drive ratios so it's just a bit of fun and a very rough estimate.
 

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RACE
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2,950 Posts
Here's mine. I have a 3inch cat-back exhaust but don't know what that gains.

Car weight: 4147 lbs.
Horsepower: 300 hp
Configuration: Rear Wheel Drive

Results
Quarter Mile Acceleration: 15.159 seconds.
Terminal speed: 97.5247 mph
 

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RACE
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2,950 Posts
galaxy xr8 said:
O,K so how much does an AU II XR8 weigh in at,can anybody help?.
Yours should be this. (Weight includes 80kg driver):

Car weight: 3710 lbs.
Horsepower: 300 hp
Configuration: Rear Wheel Drive


Results
Quarter Mile Acceleration: 14.606 seconds.
Terminal speed: 101.2005 mph.

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I thought I'll try a VYII SS weighing in at 1690 including 80kg driver:

Car weight: 3622 lbs.
Horsepower: 327 hp
Configuration: Rear Wheel Drive


Results
Quarter Mile Acceleration: 14.080 seconds.
Terminal speed: 104.9935 mph.
 

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gone
Joined
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10,402 Posts
Car weight: 3910 lbs.
Horsepower: 1000 hp
Configuration: Rear Wheel Drive


Results
Quarter Mile Acceleration: 454.606 seconds. (coast across line)
Terminal speed: 190.2005 mph. (until the box blew right after you fried both rear tyres and dug a 2 foot hole in the ground)
 

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BOFH
Joined
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7,560 Posts
Discussion Starter #15
laminge said:
Car weight: 3910 lbs.
Horsepower: 1000 hp
Configuration: Rear Wheel Drive


Results
Quarter Mile Acceleration: 454.606 seconds. (coast across line)
Terminal speed: 190.2005 mph. (until the box blew right after you fried both rear tyres and dug a 2 foot hole in the ground)
But if it makes it:
Quarter Mile Acceleration: 9.9508 seconds.
Terminal speed: 148.5562 mph.
 

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RACE
Joined
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2,950 Posts
Times for a Zetec focus.

Car weight: 2821 lbs.
Horsepower: 128 hp
Configuration: Front Wheel Drive


Results
Quarter Mile Acceleration: 17.892 seconds.
Terminal speed: 83.4784 mph.
 

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boosted sleeper
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4,560 Posts
does anyone know how heavy an eb xr8 is?

I estimated it to be 1570kg = 3460lbs

engine hp = 232hp

and the result was 15.54 @ 95.06

DOES THAT SOUND RIGHT AS AN ESTIMATE?
 

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Bring Back Jeff Kennet
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2,277 Posts
haha...go the EA mpfi!

Car weight: 3517.8 lbs.
Horsepower: 185.3 hp
Configuration: Rear Wheel Drive


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Results
Quarter Mile Acceleration: 16.849 seconds.
Terminal speed: 87.7389 mph

Little do they know its a 3 speed auto..hehe. But is that anywhere near the time I would get?
 

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Bring Back Jeff Kennet
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2,277 Posts
blueoval said:
does anyone know how heavy an eb xr8 is?

I estimated it to be 1570kg = 3460lbs

engine hp = 232hp

and the result was 15.54 @ 95.06

DOES THAT SOUND RIGHT AS AN ESTIMATE?
nah an xr8 would be a but more than that...mine is 1599 kg's. I got mine from eafalcon.com. And I went the heaviest option of the EA's....
 

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boosted sleeper
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4,560 Posts
would you say the eb would be 1620kg's then or heavier still?
 
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