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Rotary Tech - General Rotary Engine related tech section.. Tech section for general Rotary Engine... This includes, building 12As, 13Bs, 20Bs, Renesis, etc... |
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#1 | |||
Rotary Masochist
Join Date: May 2008
Location: Floyds Knobs, IN
Posts: 494
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Quote:
You're ignoring gearing in your comparison. Gear the F1 car with the same gearing that would be optimal for the high torque engine and it will be a slug. What makes any car go is torque at the wheel. The F1 car needs a very short gear to extract it's power potential and allow it to use it's 20k revs to create torque at the wheel through gear reduction. Use the F1 correct gearing with the low hp/high torque V8 and, if traction is available, it will murder the F1 engine up to the point it runs out of revs which would happen very quickly. Quote:
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Stock S5 NA ![]() Boosted semi-PP ![]() Stock 2008 Mustang GT v. w/CAI ![]()
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_______________________________________________ One stop Haltech, AEM, Syvecs shopping. Installation and tuning. http://www.lms-efi.com Free support. Drop us an email. chris@lms-efi.com 502-515-7482 Facebook @LMS-EFI Last edited by C. Ludwig; 07-30-2009 at 12:26 PM. |
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#2 |
Slow
Join Date: Jun 2008
Posts: 38
Rep Power: 0 ![]() |
This is starting to make sense. For some reason, ever since I was a kid I looked at x amount of horsepower meaning x amount of horses available to work and more horses can obviously pull something faster. I wasn't taught this, it's just how it made sense to me as a kid.
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#3 | |
RCC Loves Me Not You
Join Date: Jul 2008
Location: Influx.
Posts: 2,113
Rep Power: 20 ![]() |
Quote:
If you've taken a dynamics class in college or have yet to (I highly recommend it, it's one of the most confusing, hard, and most rewarding I have taken thus far) you will learn that to accelerate a car from 0-60mph in a certain amount of time takes some amount of horsepower. Maintaining 60mph takes significantly less hp. Accelerating above 60mph takes much much more than it did to go to 60. That's more however due to wind resistance then overpowers rolling resistance. But just something to remember. Torque is only good if the object doesn't move. IE: The wheel applies 90ft-lbs of torque at some point in time. Proceed a little further in time and you may be applying 200ft-lbs. For this reason dyno's are able to calculate both at the same time since they're both relative and related to each other as previously attested. If you'd like I could write up a little dynamics example about a car if it will better illustrate the point.
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