Saves me having to send them off and get them skimmed & Drilled.
[Edited on 7/1/13 by Benzo]
My christmass present this year is going to be upgrading the car to use wilwoods on the fount. I run the ford cortina upright and a 13" wheel. Do people recommend sticking with the solid disk or going vented. the car is a BEC and mostly used on the road.
Superlight (BEC) cars should avoid heavy, ventilated discs. Out "there" at the wheels is the most important location to minimize (unsprung)
mass. Well, theoretically, the tire is the most important place due to rotation effects, but there's often not much one can do about that.
I would go further and have the discs drilled and/or grooved for weight reduction and better cooling.
Cheers,
Steve, in the NLs
Stick with solid discs. I've yet to have any fade from mine either on track or nailing it down Alpine passes (which is probably the toughest test you can do to brakes). Don't go for the Wilwood Smart pads though; Get some Mintex 1144's in stead as they have much better feel.
Thanks for the feed back and for once it looks like every one agrees as well, which is a bonus.
I've got solid discs with some groves that came with the kit
i hardly use the brakes on the road with the amount of engine braking you get from a BEC
infact my brake lights hardly come on due to having a hydraulic switch (must brake harder)
again.. no need for vented discs on a BEC.. heavy and youd never get them up to temp.
quote:
Originally posted by Benzo
again.. no need for vented discs on a BEC.. heavy and youd never get them up to temp.
It's pretty hard to assess what driving conditions a car is going to see in order to estimate what heat dissipation you're going to need.
There's a ~4kg per corner difference between some vented and some solid discs, which is a lot, but if you have to re-design uprights/brakes when
you find you've under-cooked the rotor design you're more tempted to go larger I can tell you!
With something that the swap is fairly simple, I'd be less worried about staying small.
Mine has vented discs, hammering it around the track and they still stay cool, when I get up the energy I will swap out for none vented.
As keeping the unsprung weight down seems to be the most important thing. Has any one drilled there own disks? On Loco's CB500T Cafe Racer build
diary. He prints out a patten and then drills the disks. As far as I can see it should not be to hard to make up a patten for cortina disks and do the
same as the disks below.
http://www.premiermotorsportdevelopments.co.uk/cortina-ultralight-brake-discs---18kg-saving-200-p.asp
quote:
Originally posted by ceebmoj
As keeping the unsprung weight down seems to be the most important thing. Has any one drilled there own disks? On Loco's CB500T Cafe Racer build diary. He prints out a patten and then drills the disks. As far as I can see it should not be to hard to make up a patten for cortina disks and do the same as the disks below.
http://www.premiermotorsportdevelopments.co.uk/cortina-ultralight-brake-discs---18kg-saving-200-p.asp
Why not follow this guide How to drill youer brak disks
Well I need discs as well so I may as well buy some pre drilled!
* they did me a deal on the postage so ive gone for the ones listed with the 1.6kg saving.
[Edited on 17/12/12 by Benzo]
I have had home made drilled discs in my Skoda rally car some time ago. It worked perfectly, it didn't bent or crack cause of heat. I have coppied Zimmerman brake discs hole pattern. I'm going to do the same upgrade with my Haynes Roadster brake discs.
quote:
Originally posted by Benzo
Well I need discs as well so I may as well buy some pre drilled!
* they did me a deal on the postage so ive gone for the ones listed with the 1.6kg saving.
[Edited on 17/12/12 by Benzo]
quote:
Originally posted by ceebmoj
quote:
Originally posted by Benzo
Well I need discs as well so I may as well buy some pre drilled!
* they did me a deal on the postage so ive gone for the ones listed with the 1.6kg saving.
[Edited on 17/12/12 by Benzo]
Please can you post some pictures when you get them.
Have the disks arrived? If so can you post some pictures?
Just too add and agree with TimC I've got willwoods with mintex 1144s with vented discs and on short tracks on slicks they get too hot and needed
ducting adding to them which solved it.
This was hard use though so I can't see solids being a problem for anything but the most extreme use.
quote:
Originally posted by ceebmoj
Have the disks arrived? If so can you post some pictures?
Discs finally arrived today - 1.8kg saving version.. they certainly feel much lighter..
Saves me having to send them off and get them skimmed & Drilled.
[Edited on 7/1/13 by Benzo]
That's too cool!
So:
- is that 900 g per disk or 1.8 kg per disk?
- what did they cost?
I might do the same if it's affordable.
Well done!
Steve, in the NLs
quote:
Originally posted by ElmrPhD
That's too cool!
So:
- is that 900 g per disk or 1.8 kg per disk?
- what did they cost?
I might do the same if it's affordable.
Well done!
Steve, in the NLs
Its probably just the photos, but the swept patten of holes on that disk don't seam to overlap. I was under the impression that they should.