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Events - Racing - At The Strip - Street stories Discussing turbo dodge events. Have some numbers from the track, post them here. This is also the place to share your street racing stories.

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Old 10-04-2004, 05:44 PM   #1
Thumbs up 0-60 mph calculator from 1/4 mile (wow)  
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Ok, I can't believe how simple it was to figure out the 0-60mph from a 1/4 mile E.T and MPH. I don't need anything else and it's a 3 step operation lol.
I can also calculate how fast you'll be going at x number of seconds...

I tried many cars and on average it was precise to .1 sec

I haven't tried it on any turbo Dodge because I didn't have any data.

But I've tried it on a Dodge Viper, Porsche 911TT, Mazda RX-8 etc....

one example:

Porsche 911 (twin) Turbo awd (X50) - H6 3.6L DOHC (456 hp) 6M + ABS
4.06 0-60 mph 12.31 E.T. 120.63 MPH

Formula is:

(E.T / mph) / 1.46

Result is multiplied by mph. So in this case we want to know 60.
so...

(12.31/120.63) / 1.46
* 60
= 4.19 seconds
--------------------------------------------------------------------

example 2

Mazda RX-8 GT - R2 1.3L (238 hp) 6M + ABS 6.62 0-60mph 15.15 E.T. 94.40 MPH

6.59 seconds is the result of my calculator

And it's close like this for pretty much all vehicule...
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Old 10-04-2004, 07:23 PM   #2
 
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5.7 sec's for me.
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Old 10-04-2004, 08:33 PM   #3
 
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Can you do this one for the mentaly challenged, have better MPH ones
but this is handy.
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Old 10-04-2004, 08:51 PM   #4
 
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Quote:
Originally Posted by russ jerome
http://hometown.aol.com/russjerome/i...nivsrocket.jpg

Can you do this one for the mentaly challenged, have better MPH ones
but this is handy.
Yeah if for any reason you lost power at the big end the 0-60 mph will be higher than in reality.

but for your slip:
4.85 according to that mph.
slightly lower if you have more mph.
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Old 10-05-2004, 03:55 PM   #5
 
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15.8/ 87.5 mph /1.46 x 60 = 7.42 seconds... My G-tech measured 7.7, not bad!

Ben, great post!
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Old 10-05-2004, 05:55 PM   #6
 
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4.16 sec. I wondered how to do that. I'll pass it along.

Its not adding up for the 1/4 mile though.

11.85/116.5= .1017167/1.64=.0620223 x 116.5= 7.22 sec

Also for comparisons sake.... Mike Crawford in the Mopar sponsored neon.

8.27/172= .0506976/1.46=.0347243 x 60 = 1.97

Last edited by mopar2ya; 10-05-2004 at 06:15 PM..
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Old 10-05-2004, 10:28 PM   #7
 
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Quote:
Originally Posted by mopar2ya
4.16 sec. I wondered how to do that. I'll pass it along.

Its not adding up for the 1/4 mile though.

11.85/116.5= .1017167/1.64=.0620223 x 116.5= 7.22 sec

Also for comparisons sake.... Mike Crawford in the Mopar sponsored neon.

8.27/172= .0506976/1.46=.0347243 x 60 = 1.97
No it won't work for anything other than 60 mph. I tried to figure out for an hour between calls at work how to predict 0-100mph and any other mph but I'm not done yet. I'm close...

but the 0-60mph is very accurate. I would bet it's more accurate than the guys g-tech for 0-60mph :)

The 0-60 mph is better calibrated for runs on street tires. Because slicks make you lose a few MPH, you need to add 2-3 mph to your run to get a more accurate result for 0-60mph.

If you are crossing the traps at 6200 rpm way out of your power band same thing goes. It will add a few tenths on your true 0-60mph.
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Old 10-08-2004, 07:20 PM   #8
 
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I think a better real world result would be to use the 1/8 mile information....


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Old 10-08-2004, 08:48 PM   #9
 
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Quote:
Originally Posted by fkatzenb
I think a better real world result would be to use the 1/8 mile information....


Frank
I don't know frankly, it would be a whole new formula. 1/8 MPH is affect by traction while 1/4 mile mph isn't.

Have you tried it with magazine reports ? It's very close usually.

a few examples to give it some credibility:

1999 Mustang GT Convertible (Auto)

Motor Trend Test Results:

0-60 (sec): 6.2

1/4 Mile (sec/mph): 14.6/95.4

Calculator result 6.38

----------------

1999 Ford F-150 SVT Lightning (Auto)
Motor Trend Test Results:

0-60 (sec): 5.5

1/4 Mile (sec/mph): 14.0/100.7

calculator result = 5.7

------------------------

1999 Pontiac Trans Am (Auto)
0-60 (sec): 5.3 (Note: manual)

1/4 Mile (sec/mph): 13.9/104.0

calculator result 5.49

faster cars

Ferrari Enzo. Ferrari Enzo:
Performance Statistics.
0-60 mph: 3.3 seconds 1/4 mile: 11.2 sec @ 136.
Calculator result 3.38

--------------------------
Lamborghini Diablo
0-60 mph 3.9 s
1/4 Mile 12 s @ 122 mph

calculator result 4.04

-----------------------

Porsche 911 (twin) Turbo awd (X50) - H6 3.6L DOHC (456 hp) 6M + ABS
4.06 0-60 mph
12.31@120.63mph

calculator result 4.19

--------------------------------

Dodge viper
0-60mph 3.9 sec
1/4 mile, sec @ mph 11.77 @ 123.63

calculator result 3.91 sec

------------------------------

Dodge Dart GTS with 440@375HP:
0-60 in 5.0 seconds, 1/4 mile in 13.3 seconds @ 107

calculator = 5.1

Last edited by Ben Paquin; 10-08-2004 at 09:14 PM..
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Old 10-08-2004, 09:17 PM   #10
 
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I did a search on google and found a 1/8 mile to 0-60 mph converter. he claims you can't calculate 0-60mph from 1/4 mile and MPH because of variations of MPH due to AWD and low pressure slicks.

He's right for slicks and but AWD it changes nothing. My formula takes into account the Lower E.T. The AWD 911 TT 0-60mph is accurate.

With Slicks you need to add about 2-5 mph to your trap speed. for example 94 mph needs about 2 mph. 130 mph needs 5 extra to give a closer 0-60mph calculation.
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Old 10-08-2004, 10:12 PM   #11
 
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Using the 1/8 mile to factor in traction is more about real life numbers.
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Old 10-08-2004, 10:58 PM   #12
 
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Quote:
Originally Posted by fkatzenb
Using the 1/8 mile to factor in traction is more about real life numbers.
Most people do 1/4 miles not 1/8 miles.
And what isn't real about the 1/4 mile to 0-60mph calculator ? Have you even checked the results ? .1-.2 sec close from the 1/4 mile is pretty real to me.

I don't know what your trying to prove, but I'm all ears.

And how do you think my 1/4 mile to 0-60 mph calculator gets this kind of precision. It factors in traction just like 1/8 mile.

The formula is E.T / MPH

So the lower the E.T, the lower the 0-60 mph
The higher the MPH, the lower the 0-60 mph

So E.T. is traction and power and MPH is power. The relation between both is the reason why this calculator works.

The only time you got to do adjustments is if you run slicks
need to add a few MPH to trap speed. It's not because of traction. It's because of lost mph from the resistance of running almost flat tires.

Same goes for vehicules with Large frontal area that lower MPH.
Trucks for example need to add a few MPH to their trap speed to get more accurate 0-60mph.

But for cars on street tires it's very very close without any adjustments

Last edited by Ben Paquin; 10-08-2004 at 11:14 PM..
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Old 10-27-2004, 03:03 AM   #13
 
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According to the calculations mine should be ... 12.16/110 / 1.46* 60 or 4.54 seconds.

But it was actually 3.6 seconds on this run, so the calculation is a bit off.

My car (automatic) is strong on the bottom end of the track and dies on top.
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Old 10-27-2004, 10:18 AM   #14
 
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Quote:
Originally Posted by DblTrbl
According to the calculations mine should be ... 12.16/110 / 1.46* 60 or 4.54 seconds.

But it was actually 3.6 seconds on this run, so the calculation is a bit off.

My car (automatic) is strong on the bottom end of the track and dies on top.
Was that on street tires ? What about tire pressure ?
what did you use to calculate 0-60mph ?

Some of the faster cars do calculate higher on the 0-60mph. Especially the very fast ones with a lot of traction. There should be a correction factor for slicks, big frontal area, transmission type.
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Old 10-27-2004, 10:57 PM   #15
 
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Quote:
Originally Posted by Ben Paquin
Was that on street tires ? What about tire pressure ?
what did you use to calculate 0-60mph ?

Some of the faster cars do calculate higher on the 0-60mph. Especially the very fast ones with a lot of traction. There should be a correction factor for slicks, big frontal area, transmission type.
Yes - street tire (BFG G-Force T/A) at 12.5 PSI. I log my passes with a DAQ and then move the data into an Excel spreadsheet where I graph the results and can overlay up to 3 runs.
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