matt.c
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 posted on 7/3/07 at 09:08 PM |
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STANDARD BRAKES
Start of by asking who is using standard reconditioned sierra brake calipers front and back?
Where is the best and possible the cheapest place to get them from?
And last of all, do i really need to spend a small fortune on big brakes like willwood etc on a 7 or are the standard ones strong enough?
Thanks all
matt
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dilley
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| posted on 7/3/07 at 09:10 PM |
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Ive got some hardly used front calipers going cheap...
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rusty nuts
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| posted on 7/3/07 at 09:15 PM |
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Uprated mine from Cortina calipers , apart from the weight saving they are no better on the road . Benifits may? be noticed if I did a track day
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zxrlocost
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| posted on 7/3/07 at 09:16 PM |
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matt the standard brakes were designed for a 1 and half ton car
they are more than enough for a 450kg one
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Hellfire
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| posted on 7/3/07 at 09:18 PM |
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Standard Sierra brakes are more than upto the job of stopping a seven and best of all, they usually come attached to the donor. Of course, lighter is
always better but the Sierra brakes are fine.
Phil
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oliwb
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| posted on 7/3/07 at 09:59 PM |
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Sierra brakes are fine but you will have to spend some time fiddling with the leverage ratios to get the "feel" right. That IMHO is why
ppl harp on about fancy brakes being better. The sierra ones will still easily lock the wheels up which after all is as much as any brake can do!
Sit and make some drawings and do some maths with the pedal box and you'll be happy.....Oli.
If your not living life on the edge you're taking up too much room!
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mistergrumpy
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| posted on 7/3/07 at 10:07 PM |
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I got my front pair of Sierra calipers, discs and pads from e bay, £2.20! My rears came with a full rear end including a 3:92 diff, driveshafts,
discs, hubs, carriers and calipers all for £80 delivered from a local scrappy. Just gotta keep yours eyes open. There does seem to be a few around as
of late, EBay and the like, but I reckon they'll start getting snapped up soon with Summer coming.
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RazMan
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| posted on 8/3/07 at 12:07 AM |
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As already said, the lever ratio is crucial and even then the foot pressure will be much higher if you don't use a servo - get down the gym to
limber up those right leg muscles 
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Simon
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| posted on 8/3/07 at 12:48 AM |
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quote:
Originally posted by zxrlocost
matt the standard brakes were designed for a 1 and half ton car
they are more than enough for a 450kg one
Fully loaded and towing a caracan
I've got the standard Sierra discs (front) drums (rear), and they're fine.
Will even be keeping them when I have silly power, though may get some better pads.
ATB
Simon
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Johnmor
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| posted on 8/3/07 at 07:19 AM |
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Brakes
I use standard sierra brake on my viento,
Car weighs 750kg (no light weight) and the 260mm front discs and standad rear discs seem plenty able to stop the car, infact i'm very impressed
with its stopping power way ahead of a normal road car.
Just need to adjust the bias bar untill your happy with the balence.
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procomp
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| posted on 8/3/07 at 08:51 AM |
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Hi in the 750 kit car racing championship. Up untill 2 years ago we had to run std production brake callipers and no ally ones at all.
We were using the std sierra front +rear calippers with 0.7 master cyls and green stuff pads in the front and std apec in the rears.
At circuits like pembrey where the speeds around the last corner and down the pit straight towards a hairpin are aproaching 130 mph It was possible to
brake from 130-ish mph down to 30 mph in a distance of less then a 100 yard for 20 odd laps.
The regs have now changed and we are now allowed to use non std brakes on the cars but the the braking distances have not altered. But the unspung
weight has reduced.
Make of that what what ever you want but a good set of std brakes and pads that have been properly bled and using the correct size cyls will work
perfectly fine. Most problems with brakes are ussually found in the desighn of the pedal box with the wrong or unsuitable pedal ratios and the
wrong size cyls fitted.
cheers matt
Edit to say all the above is using a bias setup with twin cyls and not a std sierra cyl. Which if you are thinking of driving on circuit or regular
trackdays is essential. Matt
[Edited on 8/3/07 by procomp]
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mad dad
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| posted on 8/3/07 at 03:55 PM |
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mine came with tarox front discs, green stuff pads and braided pipes and they work really well!!
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matt.c
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| posted on 8/3/07 at 09:41 PM |
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Cheers everyone, thats put my mine at rest.
Thanks again.
matt
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