Well last time i drove my car i had a car full of people and I had a friendly with a VN SS and won but when i tried to slow done my car wouldnt very well from around about 160km/h.
My brakes became very spongy and I didnt think I was going to stop in time for the lights but i did. Just.
I have rear drums so i imagine this makes a huge difference so that will be changed first.
What would be a good brake conversion? should i try changing the discs to something better with better pads or should i go the whole hog and get the Hopper Stoppers treatment?
I think for around a grand they give you VT calipers and 300mm rotors and the rest of the kit?
I was goin to suggest hoppers stoppers, Im going to put the hoppers stoppers kit on my car, but the factory 4 wheel disc on xf's were pretty good, 289mm fr and 283mm rear with rear vented discs.
Are they that big? I thought they would be heaps smaller. The Hopper Stopper kit is only 300mm but i suppose the calipers would be better.
I will do the rear axle first and put on rear disks, That might satisfy me. Trying to slow down from 160 that night was a bit scary with the red light approaching fast.
I was goin to suggest hoppers stoppers, Im going to put the hoppers stoppers kit on my car, but the factory 4 wheel disc on xf's were pretty good, 289mm fr and 283mm rear with rear vented discs.
Thanx for that MADXF, try that dan put in a disc brake rear end put a set of good pads in it, bleed the braking system and u should pull up, i gave my car a thrashing at easternats last year, had heaps of brake fade but it still pulled up.
The hopper stoppers upgrade use a 300mm vt disk at 32mm thick. Your standard falc disk is only 28mm thick. The kit also uses a AU xr8 2 spot caliper. Where standard falc uses single piston.
There is an article in the latest street machine mag.
Remember that the front brakes do 70% of the braking. Thus look at upgrading your front brakes first. My xc had the same problem (brake fade) and I found that the front discs were undersized. They had been machined to under 22mm thickness.
BHP = Braking than handling and then power. This is the order that all hotted up cars should follow when being rebuilt.
/\/\ Spot on there. To really appreciate the difference, have a look at the difference in the sizes of the pads, the AU2 pads are getting on towards twice the area of the single piston pads.
I have an xc disc rear setup on my ute, I used the original drum brake master cylinder, this gives you slightly stronger brakes at the rear. the ute stops like a dream, and the rears don't lock up before the fronts either...
Only problem is that it makes it a little harder to do a line locker!!
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