Doh!!!!!!!!!!!!!!!!!
Discussion
I have just tried to fit the wheels on my nearly finished car and they don't fit!!! The front and rear foul the new calipers on the inisde edge, probably as I moved them out 10mm too suit the larger disks, so now I need some major wheel spacers?
Does anyone know the regs requirement for how far the wheel can sick out past the arch? I think its 15mm but can't be sure?
Also has anyone any experiance of using wheel spacers on a radical?
Cheers
Does anyone know the regs requirement for how far the wheel can sick out past the arch? I think its 15mm but can't be sure?
Also has anyone any experiance of using wheel spacers on a radical?
Cheers
Simon,
What type of spacers were they?
I only ask as the centre location ring on the hub is only 10mm wide so if you fit a 10mm spacer the wheel only locates on the studs, was that the case with yours?
You can buy wider spacers 15mm and 24mm which incorporate their own centre location ring and are bored to suit the origional location ring so that helps to centre the wheel and ruduces stress on the studs. The 15mm I think uses longer studs, and the 24mm bolts to the hub and has its own studs built-in... they are a nice job but I am worried about the wheels sticking out past the edge of the bodywork? I have looked in the blue book and can't find anything specific to sports racing cars WRT wheel arc requirements.
What type of spacers were they?
I only ask as the centre location ring on the hub is only 10mm wide so if you fit a 10mm spacer the wheel only locates on the studs, was that the case with yours?
You can buy wider spacers 15mm and 24mm which incorporate their own centre location ring and are bored to suit the origional location ring so that helps to centre the wheel and ruduces stress on the studs. The 15mm I think uses longer studs, and the 24mm bolts to the hub and has its own studs built-in... they are a nice job but I am worried about the wheels sticking out past the edge of the bodywork? I have looked in the blue book and can't find anything specific to sports racing cars WRT wheel arc requirements.
MSA Blue Book Section C(b) 8(h): "All vehicles must:
With the exception of racing cars or cars of periods A to D be equipped on all wheels with mudguards which present no sharp edges and cover the complete wheel (flange+rim+tyre) around an arc of 120 degrees. This minimum coverage must:
(i) be achieved with a continuous surface of rigid material uninterrupted by any gaps, holes, slots or vents.
(ii) extend forward ahead of the axle line.
(iii) extend downward behind the wheel to not more than 7.5 cm above the axle line."
With the exception of racing cars or cars of periods A to D be equipped on all wheels with mudguards which present no sharp edges and cover the complete wheel (flange+rim+tyre) around an arc of 120 degrees. This minimum coverage must:
(i) be achieved with a continuous surface of rigid material uninterrupted by any gaps, holes, slots or vents.
(ii) extend forward ahead of the axle line.
(iii) extend downward behind the wheel to not more than 7.5 cm above the axle line."
minitici said:
MSA Blue Book Section C(b) 8(h): "All vehicles must:
With the exception of racing cars or cars of periods A to D be equipped on all wheels with mudguards which present no sharp edges and cover the complete wheel (flange+rim+tyre) around an arc of 120 degrees. This minimum coverage must:
(i) be achieved with a continuous surface of rigid material uninterrupted by any gaps, holes, slots or vents.
(ii) extend forward ahead of the axle line.
(iii) extend downward behind the wheel to not more than 7.5 cm above the axle line."
Item (i) makes you wonder how so many sports cars get away with wheel top louvres. Are they not a gap, hole, slot or vent?With the exception of racing cars or cars of periods A to D be equipped on all wheels with mudguards which present no sharp edges and cover the complete wheel (flange+rim+tyre) around an arc of 120 degrees. This minimum coverage must:
(i) be achieved with a continuous surface of rigid material uninterrupted by any gaps, holes, slots or vents.
(ii) extend forward ahead of the axle line.
(iii) extend downward behind the wheel to not more than 7.5 cm above the axle line."
Edited by rustybin on Monday 16th March 10:16
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Simon T said:
Scott, I used universal ones so the wheels located on the studs only. I think you would be risking loosing a wheel with 25mm spacers. Can you move the disks and the calipers back ?
Simon
I modded the uprights to move the caliper out radially to suit 260mm disks but with 15mm hubcentric (locate on the hub centre) spacers the front is now fine. Simon
The main problem is on the back with the wilwood 4 pots as they are real close to the inside of the wheel (Rear again modified to suit 260mm disks) I have moved the holes slightly today to move the calipers back in towards the disk as far as possible and think it should now be OK, although as I am running 15mm spacers on the front plan to run 25mm ones on the back.
These 25mm spacers are hubcentric and bolt onto the hub using short nuts, the spacer then has new studs to bolt the wheel onto, they look like they should do the job but I guess the only risk is the additional load on the origional ford hub?
ScottHughes said:
These 25mm spacers are hubcentric and bolt onto the hub using short nuts, the spacer then has new studs to bolt the wheel onto, they look like they should do the job but I guess the only risk is the additional load on the origional ford hub?
I have spoken to an msa scrutineer regarding the type of hubcentric spacers which have a separate set of mounting bolts for the wheel.It is his opinion that these are not 'spacers' but are in fact composite extended wheel studs - which are not permitted under C(b) 14.
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