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Author Big Brake help.
Gary GSi
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Registered: 30th Oct 02
Location: Lincoln
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   13th Oct 03 at 21:07   View User's Profile U2U Member Reply With Quote
After fitting a C20XE engine in my corsa although my front brakes are 2.0L 16V spec i feel the need for bigger more powerful brakes. I would like rear discs and 288mm front discs with 4 pot calipers. I will also need to upgrade the master cylinder and servo to provide enough fluid pressure for the 4 pots. What car can i get a bigger master cylinder off and how easy would it be to change it all over?
Adam-D
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Registered: 11th May 02
Location: Cheshire
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13th Oct 03 at 21:21   View User's Profile U2U Member Reply With Quote
dunno bout the servo
but a set of hi-spec 4 pot would shurly slow u down
Gary GSi
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Registered: 30th Oct 02
Location: Lincoln
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13th Oct 03 at 21:22   View User's Profile U2U Member Reply With Quote
Yeah thats what i want but pedal would feel shit because i wouldnt be able to get enough pressure to them.
Ed Renshaw
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Registered: 2nd Dec 99
Location: Lincoln
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13th Oct 03 at 21:23   View User's Profile U2U Member Reply With Quote
Try V6 calipers, and 284mm discs from V-tuning - just make sure you fir some braided hoses as this will stop a lot of the poor pedal feel.
Adam-D
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Registered: 11th May 02
Location: Cheshire
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13th Oct 03 at 21:23   View User's Profile U2U Member Reply With Quote
they are billet alu
so are lighter would prob need less force to make em work?
Colin.S
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Registered: 19th Oct 02
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13th Oct 03 at 23:34   View User's Profile U2U Member Reply With Quote
I've had no probs with the hi-spec kit.
Make sure you use braided hoses tho, it will make a difference.
broster
Premium Member

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Registered: 6th Dec 02
Location: Drives: E39
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14th Oct 03 at 08:18   View Garage View User's Profile U2U Member Reply With Quote
i have the v6 brakes on my car, with braded hoses all round, the brakes aint that spongy really an stop u a treat.
ffls
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Registered: 29th May 02
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   14th Oct 03 at 09:10   View User's Profile U2U Member Reply With Quote
six pot calipers and 295 mm discs, and a good pedal feel, but I have braided hoses
Gary GSi
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Registered: 30th Oct 02
Location: Lincoln
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14th Oct 03 at 21:33   View User's Profile U2U Member Reply With Quote
Are the Hi Spec kits from PVD any good. I want to keep my 15in wheels,whats the biggest i can go?
Colin.S
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Registered: 19th Oct 02
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14th Oct 03 at 23:08   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Gary GSi
Are the Hi Spec kits from PVD any good. I want to keep my 15in wheels,whats the biggest i can go?


Hi-spec get the from me.

You can go upto 285mm with 15" rims

http://www.pvdnet.co.uk/brakes/hispec_performance.asp
Colin.S
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Registered: 19th Oct 02
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14th Oct 03 at 23:15   View User's Profile U2U Member Reply With Quote
I'll have to have a word with joff then the site says you need 16" rims min for 300mm.

325mm
Gary GSi
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Registered: 30th Oct 02
Location: Lincoln
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15th Oct 03 at 19:45   View User's Profile U2U Member Reply With Quote
Adam. How big is the gap between the outside edge of the calipers and the inside of your wheels and what offset are they?
street
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Registered: 27th Oct 02
Location: greenwich
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16th Oct 03 at 15:44   View User's Profile U2U Member Reply With Quote
i have 284mm v6, braided hoses and rear discs and my pedal feel is really shite been told to change them back to the astra 256mm then add the conversion kit from hi-spec to make them 288mm using the astra caliper
Andy
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Registered: 28th Dec 99
Location: Cumbria, UK
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16th Oct 03 at 15:51   View User's Profile U2U Member Reply With Quote
I'm using Wilwood midilite 4-pots and 285mm discs. Terrific stopping power and good pedal feel for around£420. Wilwood can supply the callipers with different piston sizes to best match your master cylinder.
AdiSRI
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Registered: 1st May 02
Location: Berkshire
User status: Offline
16th Oct 03 at 18:07   View User's Profile U2U Member Reply With Quote
My pedal feel is stodgy already, even with standard discs. I have fitted braided hoses and dot 4 fluid but to no avail, any ideas way causes this??
I want a v6 setup and as its bad already i wonder if it cud get anyworse LOL
broster
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Registered: 6th Dec 02
Location: Drives: E39
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16th Oct 03 at 18:12   View Garage View User's Profile U2U Member Reply With Quote
street, i heard this bout the v6 brakes, i have them on mine, havent got much spongyness, it feels good and stops well! i heard that if u put them on upside down or sumink it can cause spongyness?
Daimo B
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Registered: 20th Mar 00
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16th Oct 03 at 18:33   View User's Profile U2U Member Reply With Quote
I have V6, stops well, looks good, but dont like the pedal feel.
I await the day i can afford some decent 4 pots
Lar 23
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Registered: 25th Mar 02
Location: Bedfordshire
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16th Oct 03 at 19:26   View User's Profile U2U Member Reply With Quote
Adam what wheels are they on your corsa
street
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Registered: 27th Oct 02
Location: greenwich
User status: Offline
16th Oct 03 at 19:42   View User's Profile U2U Member Reply With Quote
they stop dont get me wrong but i dont like the pedal feel and im now running 5.1 fluid to see if that helps
broster
Premium Member

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Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
16th Oct 03 at 20:40   View Garage View User's Profile U2U Member Reply With Quote
dot 5 is well absorbant tho, so it dont have as much life as dot 4

 
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