FAO Speed Championship Scruitineer

[ian]

Roadgoing Suspension Question for Class 1c

I have posted the same question on the BHC/BSC forums and not received a definative answer, one comment was as follows hense the question being posted here:
'At the moment it really does not say that in the blue book, it might in 2012 but not in the 2011 one. Some championships have added that to there regs and others hav'nt , so at the moment its all still a grrey area, some scruts say top mounts are ok, others say they are not. Talk to the scrut for the championship you want to do'.


So the question: A friend of mine is about to start his 1st season in Roadgoing Production, installed on his car are adjustable platform struts that are mounted in the original positions as it left the factory...........however the Top Mount of the strutt is adjustable for Camber, the top mount is located to the original positions and has a spherical bearing which i believe is now acceptable to MSA. Clarification of the rule in Motorsports now summer 2010 states:

Suspension
11.7.1 Suspension configuration must remain standard
The suspension type and mountings must remain the same as fitted by the Manufacturer. The shock absorbers may be of any make and may be uprated from standard. Adjustable spring platform struts are permitted. The mounting method must remain as specified by the manufacturer. Springs are free but must retain there original location. Bushes may be changed for similar polymer materials but rose-joints or similar metal joints are prohibited.

Reason: Clarification

Bascically will my friend be turned away by the scruiteneers and have to change his top mounts ? (even though he doesn't adjust), This has been asked many times and i am sure there are plenty of people unsure.

Ian

[Ron]

The following is the clarification for suspension which will be in use over the North of England and the Midlands, with as far as I am aware the exception of the following clubs/venues, Hagley (Loton Park), Shelsley, Prescot and Wigton MC.

"Suspension; The suspension type and mountings must remain the same as that fitted by the vehicle manufacturer. The shock absorbers may be of any make and may be uprated from standard. Adjustable spring platform struts are permitted. The mounting method and position must remain as specified by the vehicle manufacturer. Springs are free but must retain their original location. Bushes may be changed for similar polymer materials but rose-joints or similar metal joints are prohibited unless fitted as the vehicle manufacturer’s specified option. The fitting of spherical type joints is not permitted, except as the top mounting of a suspension strut. Non-adjustable Strut Braces across the top of the front suspension turrets are allowed but these must be removable and not welded in place."

Please note that from 2012 the use of spherical joints will will also be prohibited.

[ian]

Thanks Ron.........my friend needs to buy some non adjustable top mount then. Hopefully the Scrutineers will be enforcing this.

[willo]

Thanks for asking on my behalf Ian. Still struggling to get a definitive answer off anyone to tell me if I can fit standard top mounts to my current suspension.

[Ron]

Firstly welcome to the forum.

Yes you can fit standard mounts as long as they do not alter the configuration and mounting points.

My understanding is that it is 99.9% certain that for 2012 no form of solid joint top or bottom will be allowed unless it was fitted as standard on the original suspension.
It is also my understanding is that the regulation change will look very similar to the following;

"Suspension; The suspension type and mountings must remain the same as that fitted by the vehicle manufacturer. The shock absorbers may be of any make and may be uprated from standard. Adjustable spring platform struts are permitted. The mounting method and position must remain as specified by the vehicle manufacturer. Springs are free but must retain their original location. Bushes may be changed for similar polymer materials but rose-joints or similar metal joints are prohibited unless fitted as the vehicle manufacturer’s specified option. The fitting of spherical type joints is not permitted, except as the top mounting of a suspension strut unless fitted as standard. Non-adjustable Strut Braces across the top of the front suspension turrets are allowed but these must be removable and not welded in place."

Solid joints will be allowed on specialist cars as long as the car was originally fitted with them .

I hope this helps

[willo]

Sorry my post was aimed at Subaru specialist that is trying to find out if standard subaru top mounts are compatible with the BC coilovers I have fitted. You post answers the ruling well thank you, along with previous ones.

Just hope I don't end up having to changer whole suspension

[ian]

Jan 15, 2011 19:49:42 GMT willo said:

Sorry my post was aimed at Subaru specialist that is trying to find out if standard subaru top mounts are compatible with the BC coilovers I have fitted. You post answers the ruling well thank you, along with previous ones.

Just hope I don't end up having to changer whole suspension

There's always ways and means matey, i'm sure stock top mounts will fit..........worse case is to sleeve the rubber mount. Get hold of some stock front ones to try