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Towing with a C-Max

towing

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10 replies to this topic

#1 OFFLINE   King-max

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Posted 05 April 2017 - 03:25 PM

I am thinking of purchasing an Aliner camper.  It weighs approximately 1200 lbs.  I would like to tow it with my C-Max hybrid.  Can anyone with experience from towing with a c-Max give me any tips/suggestions?  Obviously, Ford does not rate this vehicle for towing yet small cars can tow light trailers.









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#2 OFFLINE   fbov

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Posted 07 April 2017 - 12:44 AM

That makes it unlikely anyone does. I have a hitch, but for a platform and bike rack. 

 

Conventional transmissions have some very real benefits for towing, like very high gear ratios at low speed. Our trannies have fixed gear ratios, so we'd be pulling from a stop in top gear. Add a well-known tranny reliability issue related to high load under cold conditions, and I think it would be foolish to tow with the car. 

 

Have fun,

Frank



#3 OFFLINE   MaxHeadroom

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Posted 07 April 2017 - 08:01 AM

That makes it unlikely anyone does. I have a hitch, but for a platform and bike rack. 

 

Conventional transmissions have some very real benefits for towing, like very high gear ratios at low speed. Our trannies have fixed gear ratios, so we'd be pulling from a stop in top gear. Add a well-known tranny reliability issue related to high load under cold conditions, and I think it would be foolish to tow with the car. 

 

Have fun,

Frank

Wrong.  Our transmissions operate on kinematic principles via a planetary gearset.

That means variable mechanical ratios.

 

Frankie, you're almost always way off.  Maybe ask someone else to type in answers for you from now on. :rockon:

Don't answer questions on here any more.


Edited by MaxHeadroom, 07 April 2017 - 08:01 AM.

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#4 OFFLINE   fbov

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Posted 09 April 2017 - 01:39 AM

Wrong.  Our transmissions operate on kinematic principles via a planetary gearset.

That means variable mechanical ratios.

...

Sadly, what I said is true. All gears are in mesh at all times. No variation in gear ratio ever. 

 

What you were trying to say is: "That means variable shaft speeds."

 

It's simultaneous equations; you have three variables (ICE, and the two MGs) and three equations, the speed ratios fixed by the planetary gear set. 

 

If the speed of one of the three is unconstrained, the speeds of the other two can vary independently over a wide range. It's clearly demonstrated by the PSD applet.

http://eahart.com/prius/psd/

 

MG2 RPM is proportional to road speed, and it's RPM is constrained by maximum forward and reverse speed limits. 

ICE RPM can vary over a wide range, so it's managed for fuel economy

MG1 gets +/- 6.5K RPM, the unconstrained variable.

 

A real CVT has belts and cones, or something similar. CVTs also allow the input shaft speed to be independent of the output shaft, but it does so using only 2 shafts, not 3, so it needs the belts and cones to vary the ratios.

 

Now, have you got anything meaningful for the OP? 

 

Frank 



#5 OFFLINE   King-max

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Posted 13 April 2017 - 03:45 PM

I appreciate the 3 reply's discussing the gear fixture.  However, I would still like for someone to comment who actually has towed with a C-Max essentially <1200 lbs.  Have you noticed any transmission issues?



#6 OFFLINE   joshg678

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Posted 16 April 2017 - 09:42 AM

Considering the car is designed to withstand 1,000 lb of people I don't see huge concern. Car does say payload shouldn't exceed 900 lbs however.

#7 OFFLINE   Zathrus

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Posted 18 April 2017 - 01:00 PM

Page 248 of my 2013 C-Max owners manual states: "WARNING: Never tow a trailer with this vehicle. Your vehicle is not equipped to tow. No towing packages are available through an authorized dealer."  So, unless it is a small motorcycle trailer, etc, I would not use CMax to tow.


Edited by Zathrus, 18 April 2017 - 01:02 PM.


#8 OFFLINE   Louder North

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Posted 19 April 2017 - 12:19 PM

This has already been thoroughly debated - no one seems to have actually tried towing anything substantial (or if they have, it hasn't been reported here).



#9 OFFLINE   markd

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Posted 19 April 2017 - 04:08 PM

Someone on the Ford Hibryd FB page was selling a tow bar last week.

#10 OFFLINE   fbov

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Posted 19 April 2017 - 07:27 PM

Tow bar goes on the front, for pulling the C-Max behind a motor home, for example. Flat towing is supported by Ford. 

Frank



#11 OFFLINE   markd

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Posted 20 April 2017 - 05:41 AM

https://torkliftcent...-c-max-ecohitch






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