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#1
13th July 2016, 04:59 PM
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Handbrake not efficient enough for IVA
I have recently failed the IVA, one of the points was due to the handbrake not being efficient enough. I have Wilwood calipers, but with the handbrake on the car can still be pushed. I have spoken with the supplier who advised this is normal as the handbrake does not have the leverage to sufficiently apply the handbrake. Has anyone else had a similar issue? has anyone else had to create a linkage mechanism to improve handbrake efficiency?
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One day it will be on the road...... 
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#2
14th July 2016, 05:17 PM
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Are the calipers separate to brakes,are they like normal windback calipers.
Normally tightening cable too much reduces the throw of operating arms and therefore force applied,possibly lengthen the pivot arm if possible. Just looked on Willwood,its possible you need to reset the piston back with cable right off,press the brake and then adjust cable,set up and working properly they should lock.
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Cost : Little as possible. Thanks : To those who by their generosity my build has progressed. Its a handmade sports car not a flaming kit car !!! If at first you dont succeed,avoid skydiving... No parachute require to freefall,only if you want to do it twice. Last edited by flyerncle : 14th July 2016 at 05:23 PM. Reason: Read willwood site....
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#3
14th July 2016, 09:58 PM
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These are the calipers i have: http://www.rallydesign.co.uk/product...ducts_id=11370 the pistons cant be wound in and the handbrake cable pulls a lever at each side together which pulls the pads in.
I will try slackening the cable though. Only other thing i can think is to extend the handbrake for more leverage!
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One day it will be on the road......
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#5
15th July 2016, 09:03 AM
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Picture is not helpful,I would think there is some mechanical adjustment on pad rod for h/brake as you would loose the hand brake when the pads wear.
Try slackening cable off and if the is an adjuster screw it up tight to lock wheel and then back it off one turn to allow for heat. Good luck.
__________________
Cost : Little as possible. Thanks : To those who by their generosity my build has progressed. Its a handmade sports car not a flaming kit car !!! If at first you dont succeed,avoid skydiving... No parachute require to freefall,only if you want to do it twice.
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#6
15th July 2016, 12:36 PM
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googled it and the concensus is that the hand brake function is poor
here is a link to one fix http://www.locostbuilders.co.uk/view...php?tid=153582 good luck
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remember we are not mad just creatively insane
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