Toady1
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posted on 22/8/07 at 09:09 PM |
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willwoods
are they worth the upgrade over the std sierra vented discs and callipers as i have on mine?
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RazMan
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posted on 22/8/07 at 09:45 PM |
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In terms of braking power there is probably not a lot in it - however the weight saving is enormous!
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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locoboy
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posted on 22/8/07 at 10:29 PM |
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I have heard it banded about that you would need a larger bore master cylinder than the standard sierra one, or a twin master cylinder set up to get
the most from these brakes as they need more volume of fluid pushed to them to operate the 4 pots to their max potential.
ATB
Locoboy
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RazMan
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posted on 22/8/07 at 10:37 PM |
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I found exactly the reverse and went down to the smallest m/c bore size I could find (0.625" ) to get the maximum leverage (but longer pedal
travel) I used 35mm pistons in the calipers.
I changed the pedal ratio too (5.5:1) and finally got the balance right but it was a lot of work.
[Edited on 22-8-07 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Hellfire
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posted on 22/8/07 at 11:10 PM |
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Not noticed any difference in performance but weight saving is 'indeed' enourmous!!!
Steve
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nitram38
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posted on 23/8/07 at 03:52 AM |
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My K-series calipers weighed 4kg each.
The wilwoods weigh 1kg each. A 3kg weight loss on a wheel is a lot, especially on a bec.
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Toady1
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posted on 23/8/07 at 07:10 AM |
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it all helps the unsprung weight then, if not the braking power! cheers!
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bimbleuk
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posted on 23/8/07 at 07:59 AM |
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Don't forget the heat dissapation as the caliper bodies are aluminium.
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jkarran
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posted on 23/8/07 at 08:39 AM |
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Mine (Willwood Powerlite 4pot) work fine off a 0.625" cylinder, the rears are Sierra and run off another 0.625" mc. To be honest,
it'd be nice to have more cold bite from the brakes but that's just the lazy tintop driver in me who's used to servo brakes
The weight saving is huge and they're not expensive. I've got R1 radial calipers waiting to go on the rear at some point over the winter
to save another 4 or 5Kg unsprung. They were really cheap
jk
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cadebytiger
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posted on 23/8/07 at 09:43 AM |
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is loosing weight from the wheels better then?
is this due to some gyroscopic effect?
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nitram38
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posted on 23/8/07 at 10:25 AM |
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quote: Originally posted by cadebytiger
is loosing weight from the wheels better then?
is this due to some gyroscopic effect?
Basically, the lighter your wheel assembly (all components including wheel etc) , the more responsive is the suspension to bumps etc.
It is a lot harder to control a heavy moving weight than a lighter one.
This will mean that the tyre stays longer in contact with the road.
[Edited on 23/8/2007 by nitram38]
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Coose
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posted on 23/8/07 at 11:14 AM |
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With regard to suspension control and ride quality, losing x amount of unsprung weight is like losing the same amount squared from sprung weight!
Spin 'er off Well...
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nitram38
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posted on 23/8/07 at 11:23 AM |
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quote: Originally posted by Coose
With regard to suspension control and ride quality, losing x amount of unsprung weight is like losing the same amount squared from sprung weight!
I'd better cut a leg off then!
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