gearing doesn't go into your equations...because those are universal equations that can apply to ANY moving object (throwing a football, sprinting 100 yard dash...airplane on take-off...)

however, in a car...the moving object needs gearing and wheels in order to move, otherwise, it's just a spinning engine (the spinning flywheel is what those universal equations would apply to).

thereby, the gearing ratio will affect the manner in which the car moves, and thus will affect the acceleration and the acceleration equation.

i believe that makes sense.

 

Actually it doesn't. You could have a car with a 1:1 final drive ratio. It just wouldn't be a very practical car.

As I said (and you seem to have ignored), "the function of the gearing is only to allow the engine to operate as close as possible to the peak power as the velocity changes". I didn't say gearing has no function at all.

 

1:1 final drive, is STILL gearing. impractical, but still gearing...without the gearing (1:1 or otherwise) you just have a spinning flywheel, and non-moving car. which renders the acceleration equation useless for the car itself. throw in the gearing to an engine (car) and the car starts moving and accererating...but the gearing has to be accounted for in the universal acceleration equation.

the funcitoning of gearing to allow engine to operate at peak power is enlightening...you've stated that in a different thread months ago, i remember...

CVT is very intriguing...it was actually originally designed by leonardo da vinci...back in a time whereby society had no use for the CVT.

 

I would have stopped posting in this thread a long time ago, except that I have come to recognize that you actually listen to what people are saying and try to figure out what they mean. Many other people (including me, sometimes) talk more than we listen, which gets frustrating.

 

it takes a lot of thinking for me to understand concepts, which is why i ask a lot of questions...

it can be annoying i understand...and having been an auditor doesn't help in that respect.

 

I love learning. Discourse helps.

Thanks

fltsfshr

 

no but you can change how its multiplied its just simple gear ratios. mechanical engineering 101 at any local college

 

Gears are a torque multiplier.

Mike, so when selecting gears, would it be best to select the optimal final drive when the transmission is closest to 1:1 with the engine? Does that make any sense at all? lol

 

[QUOTE=ShocK,Dec 21 2007, 10:48 PM] Mike, so when selecting gears, would it be best to select the optimal final drive when the transmission is closest to 1:1 with the engine?

 

Thanks,
I can say in my AP1 that the 4.777's made second gear feel more like first gear and 3rd like 2nd and 4th like 3rd etc etc. Have yet to take it to the track to see if its going to hurt me or not.

By the way I pulled 1&1/2-2 cars on an AP2 at about 40mph roll all the way to 120mph, before the gears we were pretty even, hard to say if I had an advantage or not due to MAP sensor issues I was having.