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YOUR RESEARCHGT3 - Page 1 - Porsche General - PistonHeads UK
Leading reported evidence
Replace )
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Performed · outcome unconfirmed
(I have boiled DOT5 fluids in the past in a lowly V6 TVR, once a fluid has been boiled it MUST be changed)
Leading evidence: 'Replace )' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace )' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed
I used AP550 in a modified Impreza Turbo and even after a dozen hard laps of Oulton Park or Cadwell, the pedal was still rock hard and lasted like this all day.
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Suggestion
I don't think that changing the fluid will help this.
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Suggestion
Roadrunner, I'm keeping the GT3 badge, changing the front end to the new facelift, upgrading brakes to RUF 6 pot 370mm/350mm, putting in an integrated roll cage, RUF 18 inch 8.5's front, 10inch rears with Pirrelli Rossos and some 6 point race harnesses for track days.
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Suggestion
If you don't mind horrific brake squeak when used on the road, change the front pads to race items.
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Suggestion
Roadrunner, I'm keeping the GT3 badge, changing the front end to the new facelift, upgrading brakes to RUF 6 pot 370mm/350mm, putting in an integrated roll cage, RUF 18 inch 8.5's front, 10inch rears with Pirrelli Rossos and some 6 point race harnesses for track days.
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Suggestion
I wouldn't recommmend full race pads on the road, these were fitted as part of the Prodrive Upgrade on the Impreza and initial braking (ie just after you have set off, or after long motorway hauls) was very poor.
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Performed · outcome unconfirmed
I used AP550 in a modified Impreza Turbo and even after a dozen hard laps of Oulton Park or Cadwell, the pedal was still rock hard and lasted like this all day.
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11 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 1 discussions
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Generation: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
My GT3 is presently at RUF having a few mods including a new RUF sports exhust, air filter, remaping of ECU, 100 cell Catalitic converter and higher RPM Limit. Also having a few other mods. Should be collecting it in the next week or so. Should increase power to 385bhp.
Sounds very tasty. Should hold it's value very well with the Ruf bits. Will the car keep it's gt3 badge or have a new Ruf name? Don't forget to post back some pics and report!
Does anyone have any good solutions for the brakes overheating on track days? I've spoken to a few GT3 owners and they all suffer from this to some extent.
Also, a guy I met on a track day last week said he's got an order in for the new GT3 for next year. 3.8 ltrs, 400 bhp. Has anyone heard any news about this?
Martin
there's a conversion Parr Garage carry out to stop brakes overheating, (consists of extra ducting over the discs/callipers. Also, use Dot 5 brake fluid. If you don't mind horrific brake squeak when used on the road, change the front pads to race items. All that lot will cost around £700 from Parr Garage. They run a few cars in the Cup Challenge and are very professional and efficient.
Roadrunner, I'm keeping the GT3 badge, changing the front end to the new facelift, upgrading brakes to RUF 6 pot 370mm/350mm, putting in an integrated roll cage, RUF 18 inch 8.5's front, 10inch rears with Pirrelli Rossos and some 6 point race harnesses for track days. Should be a bit different. Also have a lot of problems with the ride height around town. Grounds out even over the mildest bumps so having the suspension raised a few mm and set up for a sharper turn in/more oversteer. Should be quite similar to the new 2002 cup cars
I would recommend changing to an AP Racing Fluid for extensive track use (read the boiling point info for the most suitable). I used AP550 in a modified Impreza Turbo and even after a dozen hard laps of Oulton Park or Cadwell, the pedal was still rock hard and lasted like this all day. (I have boiled DOT5 fluids in the past in a lowly V6 TVR, once a fluid has been boiled it MUST be changed)
I believe that Racing Fluids are more hydroscopic than standard Road Fluids and therefore should be changed more often.
After 60+ cicuit days in the last 10 years, I have tried many fluids/brake combinations and my recommendations would be AP racing fluid and cross-drilled or grooved discs (this breaks up the pad surface and means that you don't suffer from pad glaze).
I wouldn't recommmend full race pads on the road, these were fitted as part of the Prodrive Upgrade on the Impreza and initial braking (ie just after you have set off, or after long motorway hauls) was very poor. Also they will eat your discs away, a fast road pad may be better (remember pads are cheap when compared with discs)
A little extra money spent on the braking system menas that :-
a) you can brake when you want to
b) you can drive the car home happy
c) you spend more time on the track!!!
David
>> Edited by davidy on Sunday 28th April 17:19
Roadrunner : Sorry, no idea of price.
Nick : Thanks for the recommendation of Parr Garage. I'll try and track them down. I've also been told that Phil Hindley at Tech 9 Motorsports (
www.tech9.org.uk
)can do something similar including fully floating discs.
David : The problem I'm getting with the GT3 is not brake fade but vibration setting in due to the discs distorting as they get too hot. I don't think that changing the fluid will help this. Basically it needs better cooling. Having the radiator in front of one wheel and the oil cooler in front of the other is taking away a lot of the cold air that could be directly routed to the brakes.
Thanks
Martin
