985cc Turbocharged Nova Sprint Car

i like the idea of about 9mm of factory disc safely stopping you, but even the factory discs have a wear tolerance, i have got a disc catalogue somewhere, but i haven't seen it for years... if i can find it, i'll try to find something the right size.

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Originally Posted by AlanH

i've rebuilt bike calipers before, had a gsxr with 6 pots on, the calipers split in halp with only o-rings to seal them where the flid passes from side to side. could you not get a spacer made to go in the centre of the caliper in that gap to widen them up to fit car discs? cant see why this wouldnt work. mine had standard tociko 6 pots on but i've seen a few track bikes with pretech calipers fitted, these thinks are fookin awesome on bikes and lighter than stock.
http://cgi.ebay.co.uk/Honda-CBR-900-...item3a5f8843a9

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Thanks to Alan (I may not be thanking him before long!!), I have ended up buying those Pretech 6-pot calipers and discs off EBAY;

http://i285.photobucket.com/albums/l...o6YwcD1_35.jpg

http://i285.photobucket.com/albums/l...6ZJSCRQ_35.jpg

Next comes the small matter of trying to make them fit and work on Nova hubs.............

i bet they cost a pretty penny colin

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Originally Posted by stupot89

i bet they cost a pretty penny colin

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Ebay link is in post, £225 +pp which for some 6pot brakes is a snip lol

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Originally Posted by Ben

Ebay link is in post, £225 +pp which for some 6pot brakes is a snip lol

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Seemed cheap to me, and if they can't be fitted on the Nova I'll be forced to buy a Fireblade and put them on that.

didnt see the link :roll:

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Originally Posted by novarally

Seemed cheap to me, and if they can't be fitted on the Nova I'll be forced to buy a Fireblade and put them on that.

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there is a fireblade for sale on here iirc

Just got the brakes, and had a bit of a mock up. The discs are 320mm diameter, and weigh just 1.5kg each (compared to 4.2kg each for my current 247 x 20 discs).

One 6-pot caliper with the pads weighs in at 1.07kg - that is nearly 1kg EACH lighter than my Wilwoods which are 2.048kg.

So potentially if I could get these brakes to fit and work, I'd see a total saving of circa 7kg.

Some photos...........

No chance of fitting these discs with 13" wheels!!

http://i285.photobucket.com/albums/l...ort/002-21.jpg

But with 15" rims (which is what I normally use on the front), they will just about fit;

http://i285.photobucket.com/albums/l...ort/003-24.jpg

Disc mocked up on the Nova upright;

http://i285.photobucket.com/albums/l...ort/004-18.jpg

http://i285.photobucket.com/albums/l...ort/005-18.jpg

http://i285.photobucket.com/albums/l...ort/006-19.jpg

Could it work? Mounting the disc assembly directly to the drive flange? Or via a spacer/bell of some sort?

I can't see why it wouldn't, but I need to seek expert advice.

Do any of the existing holes in the disc overlap the nova 4x100 holes?

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Originally Posted by Welsh Dan

Do any of the existing holes in the disc overlap the nova 4x100 holes?

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Didn't check that yet, but there are various solutions which could overcome that if it's an issue.

i cant forsee too many fitting issues after all a lot of the off the shelf brake kits are not specific as you know.

My question is the effciency of them on a car, but suppose your car weighing in around 500kg's doing around 60-100mph flat out? compared to a bike about 200kg's doing 200mph is not far off!