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Old 04-01-2008, 05:30 PM   #20
GTAHVIT
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Drives: 2013 Sonic RS MT
Join Date: Dec 2007
Location: Saint Augustine FL
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Quote:
Originally Posted by Kyle2k View Post
Thats a completely wrong theory if you ask me, sorry. A engine with a higher rev limit is usually smaller displacement with smaller pistons, rods, cranks, etc. Leading to faster revs. Thats why the lower redline cars have more torque because they need to get farther with less rpms. Sorry to bring Honda up, but if you think a v8 can rev faster than the little 2.0 in the s2000, then...lol...you are just wrong. Thats why it is best to balance the two.
OK, I can understand that lighter components will rev more quickly. But, I'd still like to argue my scenario on the premise that if all things are equal, vehicle weight, tranny, gear ratio, etc. the High Torque motor will get to 6K before the High RPM motor with the exact same scenario. This allows the increased torque to be the advantage for acceleration under load.

But, I agree the if you put each engine on a stand, and just ran them side by side the High Rev motor will probably rev to 6k more quickly than the High torque one will. But, that seems a bit irrelevant since we want to know what will happen in a car. At least I do.

Now we can go on and on about displacement, and vehicle weight, and reciprocating assembly weight/inertia. All of which can change the end result. But I tried to create a Same - Same scenario to show the difference. I still think that my theory holds true when you consider the same vehicle load placed on either engine.
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