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Old 03-10-2011, 06:04 AM   #1
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Default Inboard rear suspension...

Is it unnessesary or just not a good idea to work with in general on r/c cars?

I've only seen one 4wd on road sedan build it into their cars (Predator DTM) but maybe there are others I don't know of.

http://img.photobucket.com/albums/v5...5/DSC_4165.jpg

the ta05ifs uses inboard front suspension, just wondering why they didnt design it with rear inboard suspension too.

Could the main problem be with it fouling the body shell
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Old 03-10-2011, 08:06 AM   #2
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Inboard suspension is primarily used on open wheel cars to get more parts out of the wind. With a full bodied car this is not needed. What most people think is that inboard/cantilever suspension can lower the center of gravity because you don't have the shock towers sticking up. In the picture you posted, both rear shocks are completely above the rear gearbox along with mounting hardware etc. Does this really lower the center of gravity? Add to that the additional parts needed to make it work, the points of movement which will develop slop and of course the additional unsprung weight. What you get is at best the same performance at a higher cost with more maintenance.
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Old 03-11-2011, 03:06 AM   #3
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Inboard suspension is primarily used on open wheel cars to get more parts out of the wind. With a full bodied car this is not needed. What most people think is that inboard/cantilever suspension can lower the center of gravity because you don't have the shock towers sticking up. In the picture you posted, both rear shocks are completely above the rear gearbox along with mounting hardware etc. Does this really lower the center of gravity? Add to that the additional parts needed to make it work, the points of movement which will develop slop and of course the additional unsprung weight. What you get is at best the same performance at a higher cost with more maintenance.

True

Thanks for answering my question, just a thought I had...
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Old 03-11-2011, 05:12 AM   #4
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Originally Posted by tc3team View Post
True

Thanks for answering my question, just a thought I had...
Should add, part of the reason for the IFS on the TA05's etc, is to allow the use of the more extreme GT type shells, with low front ends. Try fitting one of thoose to a car with standard shock towers...!!
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Old 03-11-2011, 09:03 AM   #5
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The Tigermoth LCG V10 has both front and rear shocks layed down flat. Can't get any more inboard than that.
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Old 03-11-2011, 09:40 AM   #6
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Should add, part of the reason for the IFS on the TA05's etc, is to allow the use of the more extreme GT type shells, with low front ends. Try fitting one of thoose to a car with standard shock towers...!!
yes indeed!

As for the tigermoth, not something we would see much of in the UK, but an interesting car netherless!
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Old 03-11-2011, 10:49 AM   #7
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Tamiya's old F201 has rear in board susp.
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