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Dyno Results Translated into the Real World.
Hey Brett, (and list)
Many of you wonder how your dyno results translate to the real
world. Well, as most of you know, I wrote a program back in early College
(or was it high school) that mathematically calculated a few things
directly from torque curves.
Now, though I've found that the program is usually quite accurate, it does
have limitations due to changing conditions in the real world. However,
it's perfect as a comparison tool.
One thing to note -- the 0-100km/h (62mph) time is much like a "Street
Start" in Car and Driver -- it does not compute the physics of a clutch
drop. Therefore, remember that low-end torque helps tremendously in this
test (check out Brunberg's 0-100 if you don't believe me, compared to
Riley's, and then look at their top speeds)...
Arranged in slowest -> fastest by 0-60 and then top speed:
Car 0-100 Top Sp. 1-2 2-3 3-4 4-5 Top Sp
Cammisa 8.4 199 56/6510 89/6360 126/6120 160/6100 V-6100rpm
Harder 7.7 204 59/REDL 97/REDL 134/6590 171/6600 V-6340rpm
Van (CIS) 7.7 209 59/REDL 96/REDL 139/6610 177/6600 V-6280rpm
Van (Mot) 7.4 216 62/REDL 100/REDL 144/6830 184/6580 V-6480rpm
McDowall 7.4 221 59/REDL 95/REDL 140/REDL 179/REDL V-6770rpm
Brunberg 6.1 204 58/REDL 95/REDL 131/6360 160/6090 V-6260rpm
Key: sec. kmh kmh/rpm kmh/rpm kmh/rpm kmh/rpm GEAR-rpm
Remember:
1. Brunberg's results are for the Sciretta, which is lighter than a Mk2
with worse aerodynamics
2. Different tire sizes create slightly different ratios
3. REDL -> The highest RPMs measured in the dyno test (ranges from 6750 to
7000rpm)
Enjoy!
Jason
----------
1987 Scirocco 16v
1988 Mercedes 190E Sport Euro
http://www.scirocco16v.org
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