Lotus Elan

Camber plates?

PostPost by: bitsobrits » Mon Feb 20, 2017 2:19 am

Is anyone aware of a source for adjustable camber plates for the rear strut on an Elan?
Steve

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PostPost by: CBUEB1771 » Mon Feb 20, 2017 2:36 am

I don't think that any of the usual parts suppliers have upper strut mounts which are adjustable for camber, There is not a lot of room up there for adjustment. The common approach is to use control arms which are adjustable such as this item from Kelvedon:

http://www.kelsport.net/parts/product_d ... ctionID=26
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PostPost by: bitsobrits » Mon Feb 20, 2017 4:09 am

Am aware of the adjustable lower arms, and have a pair installed. The reason for seeking some upper adjustment is to move the top of the wheel in a bit to gain fender clearance (on an S3) then dial in the final camber with the lower arms.
Steve

Elan S1 1963-Bourne bodied
Elan S3 1967 FHC pre airflow

Formerly:
Elan S1 1964
Elan S3 1966 FHC pre airflow
Elan S3 1967 FHC airflow
Elan S4 1969 FHC
Europa S2 1970
Esprit S2 1979
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PostPost by: rgh0 » Mon Feb 20, 2017 8:54 am

There is not enough room to move the Lotocone mount inwards any significant amount and it would require significant chassis mods to make it possible

I have seen a ball joint upper mount that replaces the standard rubber Lotocone. It may be possible to modify this to move it inwards to help the wheel clear the body

cheers
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PostPost by: patrics » Mon Feb 20, 2017 6:41 pm

Hi,
I made my own - moving the top in with standard wishbones will give about 2 deg and you then get the necessary clearance on the wheel arch that you are after

Regards
Steve
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PostPost by: alan.barker » Tue Feb 21, 2017 1:12 pm

Does this mod cause wear on the inside edge of the tyres.
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PostPost by: bigvalvehead » Fri Feb 24, 2017 8:19 am

I made these years ago for my 26R

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PostPost by: nmauduit » Fri Feb 24, 2017 10:03 am

bigvalvehead wrote:I made these years ago for my 26R

Dave


nice and slick... did you make some sort of custom locotone (bonded) that would fit underneath the plate or did you just use a large rubber washer (what thickness) sandwiched between two plates ?
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PostPost by: bigvalvehead » Sat Feb 25, 2017 10:01 am

I used a spherical bearing in the top mount.
Similar things are available for other cars these days see link below

http://www.ebay.co.uk/itm/Adjustable-Ca ... SwUKxYYiBl

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PostPost by: nmauduit » Sat Feb 25, 2017 11:10 am

bigvalvehead wrote:I used a spherical bearing in the top mount.
Dave


Now I understand, a real improvement over the rubber - plus should be reasonably easy to adjust on early convertible with top access. If FIA compatible/tolerated I'll sure look into it...
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PostPost by: patrics » Sat Feb 25, 2017 12:34 pm

Hi, below should be some photos of mine - lucky I have the diff out at the moment.
Mine are not adjustable I just made it to be right which means light weight - saved 500g compared to alloy racing ones which were previously fitted.
Dave's do look a better than mine but I can take mine apart and put back together without the hassle of having to remeasure.
Before making I measured the standard set up checked that both sides were equal and then worked from that.

Looking at the photos my painting is shocking!


Regards
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PostPost by: bigvalvehead » Sat Feb 25, 2017 12:51 pm

Hi Steve
How thick is the plate you have used?
Cheers
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PostPost by: nmauduit » Sat Feb 25, 2017 2:07 pm

patrics wrote:Hi, below should be some photos of mine
Steve


this should not pose any issue with the FIA ... and 2 or 3 sets could be made if one wanted to change camber for various uses.
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PostPost by: patrics » Sat Feb 25, 2017 3:50 pm

Hi,
Below is a photo of the individual parts - not fully machined
Dave, the plate is 3mm thick - laser cut so cost is almost nothing

They obviously look simple / cheap to construct but I would recommend finish machining the spherical joint diameter and circlip groove after welding

One point is that to get to inner mounting bolt I have to pull the strut outwards to get on to the caphead

With a bit more effort they could also be made a lot lighter.

Regards
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