Brake upgrade

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bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: Brake upgrade

Post by bobhatton »

raptor95GTS wrote:race idiot, the repeated seizing of the calipers was one of my reasons for changing but the WMS kit wasn't around for the mk2 in those days.

Gazza - no one mentioned Mazda calipers and a set of Carbotecs pay for a lot of brackets and spacers leaving change (almost) for a set of OEM pads

Impressive video Bob but er how long were you on the brakes for? No wonder you can use rev1 brakes and not have any issues, less than 40 seconds a run and having an uphill slope to help with the brakes. Folks in the US (and some in the UK but like me they cannot be bothered arguing anymore though I bit this time for the sake of the OP) had your exact same arguments, then went track racing and came a cropper after 2 laps as their brakes melted but again, since you've had no problems you know best and the rest of us are wrong.


No very long on the brakes at all but it is full braking, they have to stop or you are in the wall.

With my Rev 1 I did a lot of track days at Goodwood with the stock brakes and the Porterfield pads, never a problem the brakes just worked every time, and that is a very fast track.

With our cars now, we do say 20 miles racing a year, the rest of the time the cars are left outside, in the spring we clean off the rust on the disks and go racing, never having any problems with the calipers seizing up

The problem with a mid engine car is the rear brakes do 40% or so of the braking so if bigger brakes are needed get them from another mid engine car, much better chance of them being balanced.
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
bobhatton
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Location: Bodmin Cornwall

Re: Brake upgrade

Post by bobhatton »

Race Idiot wrote:Other good things about the wms kit (im not a shill honest!) is the reduction in unsprung mass which is quite significant compared to the std calipers.

Also the pedal feel is nicer.

No big brake kit is going to reduce the stopping distance, thats mainly down to the tyres you use.


I feel like I should give the WMS kit a try, but then I think my car stops faster than I think it is going to anyway so I need to brake later first, and I am unable to get my head round that so far.
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
Race Idiot
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Location: Hertfordshire

Re: Brake upgrade

Post by Race Idiot »

bobhatton wrote:
I feel like I should give the WMS kit a try, but then I think my car stops faster than I think it is going to anyway so I need to brake later first, and I am unable to get my head round that so far.


I always feel like i'm braking too early, I think I need to get some more practice and instruction :lol:

Also the wms caliper shares pads with a willwood one and the porterfields also come in those sizes.

I had lots of problems with seized calipers on my old 2, but I was racking up stupid miles in it in all weathers.

My current one I had one of the rears seize, even though 99% of the time its just been sat around parked without the handbrake on.
2mad
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Re: Brake upgrade

Post by 2mad »

Bob how much for portfield all round on a st205 .. just curios mate .. hate having yellow's ](*,)
bobhatton
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Re: Brake upgrade

Post by bobhatton »

2mad wrote:Bob how much for portfield all round on a st205 .. just curios mate .. hate having yellow's ](*,)


http://www.porterfield-brakes.com/
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
Race Idiot
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Re: Brake upgrade

Post by Race Idiot »

Being an american site it doesnt list the ST205, might be out of luck in that regard.

Isnt the front caliper the same as some MKIV supras on the 205?
bobhatton
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Location: Bodmin Cornwall

Re: Brake upgrade

Post by bobhatton »

Race Idiot wrote:Being an american site it doesnt list the ST205, might be out of luck in that regard.

Isnt the front caliper the same as some MKIV supras on the 205?


I am sure they will make them just have to find out what the car is called in the USA
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
2mad
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Location: uk

Re: Brake upgrade

Post by 2mad »

Know idea RaceIdiot just want shot of my yellows \:D/


Yeah if the us dont do them i'm screwed :(
2mad
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Re: Brake upgrade

Post by 2mad »

bobhatton wrote:
Race Idiot wrote:Being an american site it doesnt list the ST205, might be out of luck in that regard.

Isnt the front caliper the same as some MKIV supras on the 205?


I am sure they will make them just have to find out what the car is called in the USA



Are they imported then Bob .. my carbotechs were .. no problem with that :thumleft:
QUOC2008
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Re: Brake upgrade

Post by QUOC2008 »

All you need is a set of carbotech pads and castrol srf brake fuild allround on oem calipers just make sure u have good disc like dba.

Bigger brake kit are nice but yes i totally agree the braking bias is bad if only fo the front.

Dust who cares just take it to the car wash or use meguiars wheel cleaner or carb cleaner to get it off.

Carbotech will save your live...
MR2 REV 3 TURBO 450BHP
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2mad
Posts: 5983
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Location: uk

Re: Brake upgrade

Post by 2mad »

Point me in the right direction .. if portfield can do half what carbotech ax6's can do im in :thumleft:
Race Idiot
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Location: Hertfordshire

Re: Brake upgrade

Post by Race Idiot »

bobhatton wrote:I am sure they will make them just have to find out what the car is called in the USA


The ST205 GT4 wasnt available in america, they only got the fwd versions which doesnt have the mega brakes.

Like bob said though if you can find out the sizes they can probably build you a set. You never know i'm sure there are some gt4 owners who might want some!
2mad
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Location: uk

Re: Brake upgrade

Post by 2mad »

QUOC2008 wrote:

Dust who cares just take it to the car wash or use meguiars wheel cleaner or carb cleaner to get it off.

Carbotech will save your life...



Agreed loved mine :thumleft:
2mad
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Joined: Sun Feb 28, 2010 12:11 pm
Location: uk

Re: Brake upgrade

Post by 2mad »

Race Idiot wrote:
bobhatton wrote:I am sure they will make them just have to find out what the car is called in the USA


The ST205 GT4 wasnt available in america, they only got the fwd versions which doesnt have the mega brakes.

Like bob said though if you can find out the sizes they can probably build you a set. You never know i'm sure there are some gt4 owners who might want some!



That is a shame just want something better than yellow pi$h .. may have to join gt4oc :(
bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: Brake upgrade

Post by bobhatton »

Race Idiot wrote:
bobhatton wrote:I am sure they will make them just have to find out what the car is called in the USA


The ST205 GT4 wasnt available in america, they only got the fwd versions which doesnt have the mega brakes.

Like bob said though if you can find out the sizes they can probably build you a set. You never know i'm sure there are some gt4 owners who might want some!


The altrack is the 4 wheel drive gt4 in the USA
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
SonicSW20
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Re: Brake upgrade

Post by SonicSW20 »

bobhatton wrote:
The altrack is the 4 wheel drive gt4 in the USA


They never did a Gen6 Alltrac though, last one was the ST185 I think?
bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: Brake upgrade

Post by bobhatton »

2mad wrote:
Race Idiot wrote:
bobhatton wrote:I am sure they will make them just have to find out what the car is called in the USA


The ST205 GT4 wasnt available in america, they only got the fwd versions which doesnt have the mega brakes.

Like bob said though if you can find out the sizes they can probably build you a set. You never know i'm sure there are some gt4 owners who might want some!



That is a shame just want something better than yellow pi$h .. may have to join gt4oc :(


Send them a message and ask them what they can do.

[email protected]
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
2mad
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Joined: Sun Feb 28, 2010 12:11 pm
Location: uk

Re: Brake upgrade

Post by 2mad »

Bookmarked , Will do ... cheers Bob
bobhatton
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Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: Brake upgrade

Post by bobhatton »

Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
Tsia
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Joined: Fri Sep 23, 2011 9:12 pm
Location: Milton Keynes

Re: Brake upgrade

Post by Tsia »

Just a FYI - the ST205 brakes are the same as 'UK spec' Supra brakes.

Last I checked, pads were interchangeable. :thumleft:
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