GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: kingturbo on 23 May 2006, 20:03
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hi has anyone fitted these to their car ive just bought the calipers discs and pads and wondered how easy they are to fit and if they just bolt straight on or do they need modifying thanks in advance
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HI I HAVE THEM ON MY GTI 1.8T, YOU NEED 4/5MM SPACERS ON THE CARRIERS,
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thanks do the spacers need to go where the carrier bolts to the hub and will a couple of thick washers be ok im planning on fitting them sat morning is that the only thing that needs doing also will i need longer bolts to hold them on thanks
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Bolted straight on when i done mine, the only thing you have to do is cut the lip of the dust guard or just straighten it out to accommodate the bigger disc.
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How come you wanted to upgrade the rears, Rich?
IIRC, the rears only do about 25% of the braking, anyway. :wink:
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im replacing them because my pads are worn right down and my discs look like they are quite worn and need replacing i only paid £100 for the lot so its cheaper than buying a set of uprated discs plus they are vented and 23mm bigger than the standards just need to get the 312mm fronts now :smiley:
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Bolted straight on when i done mine, the only thing you have to do is cut the lip of the dust guard or just straighten it out to accommodate the bigger disc.
when you say bolted straight on do you mean without any spacers/washers also will the handbrake cable fit straight on?
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Good price :smiley:
You shouldn't really upgrade the rears, without doing the fronts first though, mate. :wink:
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I agree with Ivor on this matter .
In fact I will look at the rear discs on my 1.8T to see exactly what is going on there.
When checking over my car, I did notice the rear discs to be rather small, (front wheel drive) yet on further examination, I notice that the pads are even smaller that the Arc of the disc would allow, because the calliper is a pretty skinny one.
There has to be a design reason, and you may probably find a pressure relief valve to stop excessive braking on the back when the car is forward pitching. this of course because it is front wheel drive, and there is a massive out of balance weight distribution ratio from the centre of the car forward.
Vented discs are not the be all and end all you know :laugh:! The old solid racing drilled ones were good, the dust and water was pressed thru the drillings ? and using harder hot pads and air scoops on the callipers to keep the fluid cooler worked.
With vented disc you have to change the disc more often, they distort badly in real heavy braking when worn thinner, and tend to collapse on the segments, ok, you need a vernier micrometer to measure the distortion, but never-the-less, new pads on worn vented discs is worse that solid, as they grab like mad in an inconsistent manner.
Be carefull that you don't stop the back of the car too early under heavy high speed load.
Like the golf loads, but rear wheel drive with a heavier LSD differential is far superior IMHO (traction control actually works that way). Makes me an old school driver - ok  If you're racing, you may want some heavy fire bricks in the spare wheel orifice, to keep the stern down.
Change the brake fluid, "bleed it all out" every 20k or 30 months, or your seals will eventually start weeping . :cry:
Duncan
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Bolted straight on when i done mine, the only thing you have to do is cut the lip of the dust guard or just straighten it out to accommodate the bigger disc.
when you say bolted straight on do you mean without any spacers/washers also will the handbrake cable fit straight on?
Yep handbrake cable will fit straight on, I did'nt need any spacers with mine, have you got the carriers aswell or are you planning on using your old ones?
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ive got the carriers too i was a bit unsure about putting them on without the fronts but the rears have now started making a metal on metal grinding when i brake so they will be better than none for a couple of weeks till i can afford the fronts ill just take it easy :evil:
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You will have no probs then, I know i and others who have done this conversion and never needed to use spacers.