FIA Historic Rules on Rubber doughnuts

FIA Historic Rules on Rubber doughnuts

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over steer

Original Poster:

121 posts

205 months

Sunday 12th July 2020
quotequote all
Hi Guys;

I was wondering if anyone had any idea if converting our 62 Lotus 23B from rubber doughnuts to CV joints would be compliant with FIA historic regs?

Thanks in advance.


ChevronB19

5,737 posts

162 months

Sunday 12th July 2020
quotequote all
over steer said:
Hi Guys;

I was wondering if anyone had any idea if converting our 62 Lotus 23B from rubber doughnuts to CV joints would be compliant with FIA historic regs?

Thanks in advance.
I don’t, but best thing to do would be to check with an HSCC eligibility scrutineer.

over steer

Original Poster:

121 posts

205 months

Monday 13th July 2020
quotequote all
Not sure there are any of those on the ground in Malta. . I'll have to try track someone down online.

HustleRussell

24,602 posts

159 months

Monday 13th July 2020
quotequote all
Such conversions are prohibited in Historic Formula Ford and also Formula Junior cars of the same period so I suspect it wouldn't be permissible.

Carnage

886 posts

231 months

Monday 13th July 2020
quotequote all
They’re not allowed, no.

Have to be as homologated in all respects.

If you’re asking because you have a Hewland MK9 box, you can get output shafts that allow you to fit donuts from PDS Racing.

They are beautifully made but not cheap.

Edited by Carnage on Monday 13th July 14:02

over steer

Original Poster:

121 posts

205 months

Monday 13th July 2020
quotequote all
The only motivation was greater reliability. Thanks for the information, will proceed accordingly.

HustleRussell

24,602 posts

159 months

Monday 13th July 2020
quotequote all
over steer said:
The only motivation was greater reliability. Thanks for the information, will proceed accordingly.
It's worth looking into 'doughnut savers' or whatever they're officially called- devices which can be used in combination with doughnuts to stop the driveshaft from flailing about in the event of a failure.

over steer

Original Poster:

121 posts

205 months

Monday 13th July 2020
quotequote all
HustleRussell said:
It's worth looking into 'doughnut savers' or whatever they're officially called- devices which can be used in combination with doughnuts to stop the driveshaft from flailing about in the event of a failure.
Thanks for the tip, will look into these.

ChevronB19

5,737 posts

162 months

Tuesday 14th July 2020
quotequote all
And vaguely on topic, I noticed these today if you’re interested (not my advert).

https://www.racecarsdirect.com/Advert/Details/1145...

over steer

Original Poster:

121 posts

205 months

Wednesday 15th July 2020
quotequote all
ChevronB19 said:
And vaguely on topic, I noticed these today if you’re interested (not my advert).

https://www.racecarsdirect.com/Advert/Details/1145...
Nice! Ours is trimmed in red though as that goes better with its colour scheme: https://www.instagram.com/p/BI5han-gbiQXiECnFW7DH2...

On the hunt for an Ali bodied Lotus XI though and those would be perfect for it.