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Author drums or discs on the rear - opinions
jaysc20xe
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Registered: 5th Feb 08
Location: cleck/leeds
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23rd May 13 at 06:06   View User's Profile U2U Member Reply With Quote
just wondering what are peoples opinions.

my corsa gsi rear brakes are nackard. need new shoes, calipers, drums and springs. for this price i can get a rear disc beam.

im running it with a v6 in and 288mm brakes up front.

would i be better sticking with the drums or change to discs
Edges 58
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Registered: 30th Mar 10
Location: Nottingham
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23rd May 13 at 06:52   View User's Profile U2U Member Reply With Quote
I'd stick with drums, doesn't need any more than that unless you're running power like bigrons monster of a car
Ben G
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23rd May 13 at 06:53   View User's Profile U2U Member Reply With Quote
As you have a v6 in there, i'd say get some rear discs on.
Nic Barnes
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23rd May 13 at 06:54   View User's Profile U2U Member Reply With Quote
Personally I wouldn't bother if it is a regular road car.
Mr-SEH
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23rd May 13 at 06:56   View User's Profile U2U Member Reply With Quote
You change to discs and you will be locking up the rear, mate has v and he put discs on hard braking rear locks up had to fit a valve to adjust what pressure goes to rear.
jaysc20xe
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23rd May 13 at 07:07   View User's Profile U2U Member Reply With Quote
Nic it is just a road going car. Not running any major power through it either. Probably never be more than 250bhp. Think I may just stick with drums then. From what I've read it's quiet a big job to do compared to just sticking a pair of drums on.

[Edited on 23-05-2013 by jaysc20xe]
possy
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23rd May 13 at 09:18   View User's Profile U2U Member Reply With Quote
I run disks on the back of mine its one off the best mods ever to do one for the look and second becausethe brake pedal is loads better its higher up if you run v6 calipers dont know why but just do and to stop the back brakes locking up all you need to do is take off the load sensing valve spring off and there fine i have ran rear disk for 4 years no probs at all
LeeM
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Registered: 26th Sep 05
Location: Liverpool
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23rd May 13 at 11:13   View User's Profile U2U Member Reply With Quote
if it would cost the same as what you have to replace id do it tbh. just for next time, pads are less of a fuck about to change than shoes imo
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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23rd May 13 at 11:18   View Garage View User's Profile U2U Member Reply With Quote
Advantage of discs on the rearisnt about braking force.

You wont get any more braking force as such by fitting discs, and if you did that would make your system unbalanced anyway.

the advantages of discs are better heat dissipation and easier to work on

some people fit them for looks aswell of course

[Edited on 23-05-2013 by Steve]
3CorsaMeal
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23rd May 13 at 12:19   View User's Profile U2U Member Reply With Quote
Do cars still come with drums?
jaysc20xe
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23rd May 13 at 12:24   View User's Profile U2U Member Reply With Quote
i was thinking about people saying they lock up all the time but as said, surely there is still the same amount of braking force being applied.

possy what hand brake cable do you have to use on them

cheers for all the help
Nic Barnes
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23rd May 13 at 12:58   View User's Profile U2U Member Reply With Quote
Had drums didn't lock up from the rear, fitted discs, it locks up from the rear. Real world stuff not Internet experts.
Steve
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23rd May 13 at 13:02   View Garage View User's Profile U2U Member Reply With Quote
You have it setup wrong then if its locking up the rear before the front.

You should be able to lock all 4 wheels at almost the same time (fronts slightly first) if you dont have ABS, regardless if you have drums or discs.

If your drums werent locking up in this scenario before they were probably fucked
Nic Barnes
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23rd May 13 at 13:04   View User's Profile U2U Member Reply With Quote
They were brand new shoes and drums before I did that track day. Just saying, facts not myths from people with keyboards.
Steve
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23rd May 13 at 13:05   View Garage View User's Profile U2U Member Reply With Quote
Ok barnes theres no need at all to get waspy about it
LeeM
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23rd May 13 at 13:15   View User's Profile U2U Member Reply With Quote
without siding with steve, the brake bias must have been set up wrong nic. similar to when you lower saxos too much and they start locking the rears
eckers90
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23rd May 13 at 14:08   View User's Profile U2U Member Reply With Quote
i fitted rear discs, same as possy best mod ive done.
Baskey
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23rd May 13 at 15:47   View User's Profile U2U Member Reply With Quote
In the race series I help my mate it (I'm his mechanic in a e30 production series) some cars have rear drums and some hsve disks. Most cars are converted to rear disks, there is zero lap time difference between them, rear disks are preferred simply because they are easier to maintain / check
tom130691
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23rd May 13 at 15:53   View Garage View User's Profile U2U Member Reply With Quote
more hassle than its worth
bigron1988
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23rd May 13 at 16:07   View User's Profile U2U Member Reply With Quote
Have disks on the back of mine and hate it, would rather have drums
eckers90
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23rd May 13 at 16:14   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by bigron1988
Have disks on the back of mine and hate it, would rather have drums



why?
bigron1988
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23rd May 13 at 16:56   View User's Profile U2U Member Reply With Quote
Because even with a bias valve fitted and it all the way to the front it will lock the back wheels up and spin the car , Steve will tell me I've done something wrong so don't listen to me
Steve
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23rd May 13 at 16:59   View Garage View User's Profile U2U Member Reply With Quote
Not really, if youve adjusted it right in not much more you can do apart from get a valve with greater adjustment or go back to drums.

I dont suppose it really matters on a drag car though
jaysc20xe
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23rd May 13 at 17:12   View User's Profile U2U Member Reply With Quote
Hard decision to make because everyone has a different opinion and different experiences. The car isn't a daily driver. It's does less than 1k miles a year.

Not really doin it for looks as you won't really be able to seem them behind D90's. was only thinkin of doin as its a cheaper option than replacing all that's wrong with it ad as said they are alot easier to maintain

not sure which way to go
eckers90
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23rd May 13 at 17:14   View User's Profile U2U Member Reply With Quote
it sounds like you should stick to drums, easier to maintain? ell set of shoes last ages and are cheap, so are brake cylinders,
if you take the plunge to discs, you have to be prepared to fuck about with handbrake cable, set of discs and pads is more expensive, plus be prepared to maybe fit a bias valve etc etc.

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