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Fabricated Rear Radius Arms

suspension

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#1 r.tec

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Posted 31 December 2019 - 03:18 PM

Hello,

 

I was randomly looking through my collection of Mini homologations forms and suddenly I noticed that on the 1997 paper a fabricated rear radius arm was homologated in group A.

 

The photo is not very clear. Therefore I would like to ask if somebody has a photo where the single items of the arm are better to see.

 

There seems to be a bit of hassle with the part no. as in the Hertiage Catalogue of the time HMP141104 is for a strenghtened rear subframe.

 

Kind regards,

Helmut

 

 

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#2 Ethel

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Posted 31 December 2019 - 07:42 PM

Some of the numbers bring up this ST Catalogue

 

Perhaps something to do with L33 EJB?



#3 r.tec

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Posted 01 January 2020 - 10:03 AM

...not necessarily with L33EJB but more with the later Group A Minis.

 

Catalogue: http://www.minipassi...ochure 1997.pdf

Page with Mini Chassis, left column: HMP141104, strengthened rear subframe, fast road, race, rally

 

Part no clashes with FIA paper for the trailing arm.


Edited by r.tec, 01 January 2020 - 10:24 AM.


#4 Ethel

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Posted 01 January 2020 - 11:24 AM

Maybe thrown by the consecutive number? Or maybe someone was playing a fast one & pinching the part numbers to bluff their arms as original eqpt? 

 

Asking why they'd bother might assist the search for more info - clearance for bigger tyres, durability for off road racing? 

 

 

It's a poor image but no sign of a knuckle joint socket so maybe it bolted directly to the body/cage and used coilovers? Using the number for a subframe you don't have would answer two awkward questions in that situation.



#5 nicklouse

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Posted 01 January 2020 - 11:29 AM

Not aware of these but there was a need to change the cars track so it could run in the same “ruts” as other cars. Which would also allow correct coil overs to be used.



#6 r.tec

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Posted 01 January 2020 - 11:53 AM

I think it was simply saving weight. If I got some decent pictures I'd probably do a CAD out of it....

 

Coils-overs or so were not homologated.

 

For the complete Group A papers: https://www.magentac...hare/n.3c518j.j

 


Edited by r.tec, 01 January 2020 - 11:57 AM.






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