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Subject: 
Re: 8880 Super Car motorization ideas?
Newsgroups: 
lugnet.technic
Date: 
Wed, 10 Jan 2001 02:06:18 GMT
Viewed: 
636 times
  
"Gaurav Thakur" <cp5670@supermail.com> wrote in message
news:G6xB1n.Ln5@lugnet.com...
In lugnet.technic, Constantine Hannaher writes:
This subject was thrashed fairly thoroughly a number of months ago, and I
remember that the conclusion is no, not if the engine and transmission is • left
assembled as instructed. Now that the news search function is • reestablished,
you have a chance to find those previous messages. Now, what I did was • empty
out the interior and install a five speed transmission like the 8448 but • this
meant that the steering link fore and aft had to be lowered to go around • the
wider transmission and I'm pretty sure that all counts as cheating for • what you
want to do. However, it does leave a space behind the seats to install a • motor
analogously to where the 8448 mounts a motor relative to the • transmission, so
it's the same setup and the chassis moves as expected.

Thanks for the information. It seemed that many of the old topics said • that
the drive train is too complex and therefore creates a lot of friction and
that the transmission system is somewhat reversed, which further increases
the dificulty of motorization. I tried to attach two gear-reduction motors
slightly under the engine (engine had to be raised a bit to allow them to
fit), so that they wouldn't have to use the chain (which can sometimes
create a bit of friction) and it seemed to work quite well when the car • was
raised off the ground, but the vehicle wouldn't move at all. I need to try
some more stuff with this...

I think one big problem is the extra friction introduced by those special CV
joint thingies. Because they're much larger diameter than standard axles,
and there isnt really much holding them square in the steering arm piece,
they generate much more friction than those in (for example) the 8448.

ROSCO



Message has 1 Reply:
  Re: 8880 Super Car motorization ideas?
 
You have your finger on it, Ross! It is the weight of the hubs and tires, I have decided, which exacerbates any friction at the steering arm between itself and the knuckle ball and the locking hub. I have been building an 8880 chassis from spare (...) (23 years ago, 15-Jan-01, to lugnet.technic)

Message is in Reply To:
  Re: 8880 Super Car motorization ideas?
 
(...) Thanks for the information. It seemed that many of the old topics said that the drive train is too complex and therefore creates a lot of friction and that the transmission system is somewhat reversed, which further increases the dificulty of (...) (23 years ago, 10-Jan-01, to lugnet.technic)

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