SS1 Brakes

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petesilcock
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SS1 Brakes

Post by petesilcock » Fri Jan 07, 2011 6:27 pm

Photos of brake upgrade to Sabre.

Can I start this by saying - this is not needed unless running silly power and sticky tyres to match.
The Phil upgrade of Volvo / Carlton front and larger wheel cylinder to the rear is very well balanced and plenty powerful enough for road with standard pads.
Better pads useful for track to keep the burning pad smell at bay with attendant smoke when stopped.
This set up however with the sticky Toyo 888s gave a few moments when the corner approached very quickly
It was only just possible to lock the wheels

So more brakes needed

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I obtained upgrade Chevette brake discs and carriers from Fleabay
These are cross drilled 300mm discs from a rally prepared Chevette.
Picture shows size compared to the 247mm Carlton disc with a random caliper to check for clearance
I have got rid of all standard SS1 discs or I would have used that for comparison photo!!
This size of disc gives 25% more brakes with same clamp pressure and pads comapred to the Carlton upgrade

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The discs are bolted on type
Shown with new caliper

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Spacer ring between carrier and disc was needed for clearance in the wheel

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Radial mount blocks needed 7mm spacer to fit to Chevette uprights

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In position

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Through the wheel shows minimal clearance left on 15 inch wheels

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Final bit - very important with the back brake change - ensure backs don't lock
Comes from Sierra and very expensive as a spare due to never going wrong - so buy from scrappy
Held in place with tiewraps while I play with the angle to ensure back brakes working but not locking.
Adjustment by altering the angle the ball bearing inside hast to roll up before limiting the rear brake pressure

Image

Rear
Caliper from Rally Design - Golf mk4. Very good price from RD which includes the mounting plate
6mm plate cut to fit rear of trailing arm and welded into position
Disc is BMW 30 series to get correct offset

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Fitted to car
Needs two flexys both in original position and as shown
Caliper slides so inlet position moves

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Handbrake cable kit from RD is easy to link to the original adjuster via a U shaped bracket (part of a wire rope gripper and bolt welded together)
Original lever used with slightly long travel, could have extended lever arm as RR thread

Pete


SS1 and Twin Cam Sabre

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Raz987
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Re: SS1 Brakes

Post by Raz987 » Tue Jan 18, 2011 4:19 pm

Nice conversion Pete, i'm surprised no one else has commented!
I'm planning something similar on the race car, so it's interesting to see what you've done.
Raz


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petesilcock
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Re: SS1 Brakes

Post by petesilcock » Tue Jan 18, 2011 5:06 pm

Thanks Raz

I did preface by saying it was not needed for most SS1s

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Re: SS1 Brakes

Post by Raz987 » Fri Jan 28, 2011 11:02 am

Hi Pete, yet more questions!
I can't find the Golf calipers on Raldes website, can you post a link please? When you say it includes the mounting plate, do you mean the carrier? Or is it a specially made carrier, not the same as fitted to the Golf?
Cheers,
Raz


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Re: SS1 Brakes

Post by Coco La Blanc » Fri Jan 28, 2011 1:22 pm

Peter,
Excellent research and application - I am very interested in this upgrade for my sprint Car as I finally managed to secure a CA18DET plus all ancilliaries necessary (ie. it's still running in the SX200 I brought back from London last night). Will contact you via PM.
Regards,
Viv



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Re: SS1 Brakes

Post by petesilcock » Fri Jan 28, 2011 5:24 pm

I had to get the Golf calipers by phoning RD
They do not seem to be in the catalogue
I am away till Wed but will look out the invoice when I get back

Pete


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Re: SS1 Brakes

Post by CNHSS1 » Fri Jan 28, 2011 8:55 pm

they are back in the 2011 raldes catalogue in the wilwood section, but state non-wilwood product


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Re: SS1 Brakes

Post by Raz987 » Sun Jan 30, 2011 2:51 pm

So my plan is/was to use Wilwood NDL (Narrow Dynalite) calipers as they bolt straight up to the 88.9mm mounting of the standard upright. One appeared on eBay last week so I snapped it up for £70 (RRP £120) :D
http://www.rallydesign.co.uk/product_in ... ts_id=8309
It's a 120-4982, so it's 35mm pistons and spaced for a 30mm disc. I had originally planned on using a Nissan 300ZX disc (280mm dia, 30mm thick, 54mm height) but after mounting the caliper to the upright and taking some measurements, it's not going to be possible. It needs a disc 30mm thick, 252mm dia and 70mm height (I want to put it over the studs), which I've had no luck finding. Diameter is not necessarily the problem, it's height.
So, it looks like I'll have to use a 45mm height disc bolted to the back of the hub, as per Paul Turnbulls thread. This would be a 21mm or 25mm thick disc though. So, does anyone know if I can remove one of the ally spacers from the caliper to make it suitable for a 21mm disc?:

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Re: SS1 Brakes

Post by philhoward » Sun Jan 30, 2011 3:33 pm

Raz,

BMW E21 323i discs are 255 diameter, 75 high but only 22mm thick - would they fit?


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Re: SS1 Brakes

Post by Raz987 » Mon Jan 31, 2011 2:28 pm

philhoward wrote:Raz,

BMW E21 323i discs are 255 diameter, 75 high but only 22mm thick - would they fit?
That might be the answer. Take out one of the ally spacers from the caliper (I'm sure this is possible). Use a 5mm spacer between hub and disc. Turn them down to 252mm and bobs your uncle!
I don't suppose you have one lying around do you Phil? :D


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Re: SS1 Brakes

Post by philhoward » Mon Jan 31, 2011 2:38 pm

320/323i discs are part no BDS4196 from brakeparts.co.uk; £26-ish each plus the dreaded. E21 they must be - E30 ones are only half that height...I'll email you over the sheet on them in a tick..

Or some Brembo ones at £88.88 a pair, delivered? http://cgi.ebay.co.uk/FRONT-BREMBO-BRAK ... 563574e2bc


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SS1 1600 Rooster Turbo; Sabre Mk1.5, Sabre Mk2
Previous: SE5/5a/SS1 No.1/SS1 Rooster/SS1 1800Ti/SE5a 24 Valve
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Re: SS1 Brakes

Post by Raz987 » Wed Mar 02, 2011 12:02 am

Pete, the E30 rear discs, are they the 258x10mm x 60.1mm high ones?


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Re: SS1 Brakes

Post by petesilcock » Wed Mar 02, 2011 8:15 am

Sounds right

Pete


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Re: SS1 Brakes

Post by Raz987 » Thu Mar 03, 2011 4:30 pm

Okay, I've ordered the E30 rear discs and some other front discs for my conversion (which won't be using the Wilwoods as previously stated).
Pete, I don't suppose you have a technical drawing of the steel plate adaptors you made for the rear calipers please?


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Re: SS1 Brakes

Post by petesilcock » Wed Jul 27, 2011 5:15 pm

I have put this note to bring topic to the top of the list - referring to SS1 brakes current topic


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