[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]

Re: [T3] Horsepower at the wheels.


Here's a response I got from my friend John regarding transmission 
efficiencies. These numbers sound about right to me.

On 1 Sep 2004 at 11:13, John J. Moskwa wrote:

> It is difficult to pin people down on transmission efficiency, but for 
> manuals they are typically in the mid-90's (%).  The Bosch Automotive 
> handbook says they can be as high as 99%, and Fenton has a book that states that
> synchromesh manual transmissions have efficiencies of 93-95%.  I think it
> depends a lot on what type of lubricant is used, the geometry of the helical
> gears (straight-cut are more efficient but noisy), and bearing types.  I think
> 95% would be a good ballpark estimate.

-- 
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Shameless link for search engines: http://listarchive.type3.org ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]