Brake fluid coming out the top of the reservoir.

[Hilux]

Green stuff USED to be great. They arent now.

They used to be low dust with good feel and wear characteristics and were the street pad of choice a few years ago and that is why they still find favour today. We used to use them as street and track pads in our Westy`s and I also used them in my Ginetta (both under 800kg) where they performed brilliantly but they suddenly changed the formula (or something) a few years ago and now arent a patch on what they were in my opinion having tried them in my old 944T. They have a break in layer [8|] which is designed to go through protective plating on EBC discs and is supposed to bed the pads in on ordinary discs however the 6 x 50-0 stops normally breaks in most pads immediately so its a bit of a gimmick I feel.

I would also go as far as to say that EBC yellow and red `stuff` are also not highly considered anymore from what I hear and see posted but cannot comment from experience.

PF97 are expensive BUT to green stuff they are like KWV3 is to Mo30 - absolutely stunning. All I can say is they grip well from cold and as you brake you find yourself easing OFF the pedal as the progressive bite is amazing and they therefore modulate brilliantly (I`d love to try them in a non servo car)

When you have experienced them you will appreciate the cost for they are worth every penny and you can brake soooooooo late its unbelievable.

The major downside is the PF97 dust. Its very aggressive and needs cleaning off immediately on the road and will embed itself in the powder coating or lacquer if used in anger on a track. The best way to avoid this is to have your wheels painted in anthracite (or brake dust black ) or if they are precious to you, have a dedicated set for track work. I used to have a set of D90`s that were peppered with dust for track and a set of Cup 1`s for the road where I used OEM Textar pads.

Never tried Mintex but 1155`s or Pagids are soon to go on my Golf track car as I cant get PF for it but they and Ferodo DS2500`s get rave reviews so I`ll be interested to see how they perform on a sub 900kg car.

ATE boils at a higher temperature than standard fluids (also has a higher wet boiling point) and it is recommended you change it every year or twice yearly if you do a lot of track laps which isnt a chore. ATE comes in two colours, blue and clear so you know when you have pulled through new fluid [] ATE tends to be promoted as it is a good fluid at a reasonable price. If you research further you will see how much you can pay for top of the range fluids []

 

[amrbose14]

I used to have an XR4x4 (given to me free!) which had Greenstuff on the front. They worked well from cold and I never saw any brake dust. So I was slightly surprised to see a fair amount of dust, and poor cold braking on the 944..Explains that then.

You make a very strong case for the PF97, except for the fact that I am dreadful at cleaning my car. It can go for months. Although I have a spare set of wheels (teledials) the tyres are not trustworthy, and I've (quite) slowly wearing down the Bridgestone SO2's (which I find great) on my D90s. The plan is once worn to near the legal limit they will become my dry track tyres, and I'll refurb the oirginal teledials for the road/wet track. Not sure I can be arsed with changing the pads for the road though. Or cleaning my wheels every time I drive!

WRT the ATE - is it OK to just beed out the dot 5.1 as the ATE goes in? I guess it also complicates servicing and garage work slightly if you don't do everything yourself.

Chris

ORIGINAL: Hilux

Green stuff USED to be great. They arent now.

They used to be low dust with good feel and wear characteristics and were the street pad of choice a few years ago and that is why they still find favour today. We used to use them as street and track pads in our Westy`s and I also used them in my Ginetta (both under 800kg) where they performed brilliantly but they suddenly changed the formula (or something) a few years ago and now arent a patch on what they were in my opinion having tried them in my old 944T. They have a break in layer [8|] which is designed to go through protective plating on EBC discs and is supposed to bed the pads in on ordinary discs however the 6 x 50-0 stops normally breaks in most pads immediately so its a bit of a gimmick I feel.

I would also go as far as to say that EBC yellow and red `stuff` are also not highly considered anymore from what I hear and see posted but cannot comment from experience.

PF97 are expensive BUT to green stuff they are like KWV3 is to Mo30 - absolutely stunning. All I can say is they grip well from cold and as you brake you find yourself easing OFF the pedal as the progressive bite is amazing and they therefore modulate brilliantly (I`d love to try them in a non servo car)

When you have experienced them you will appreciate the cost for they are worth every penny and you can brake soooooooo late its unbelievable.

The major downside is the PF97 dust. Its very aggressive and needs cleaning off immediately on the road and will embed itself in the powder coating or lacquer if used in anger on a track. The best way to avoid this is to have your wheels painted in anthracite (or brake dust black ) or if they are precious to you, have a dedicated set for track work. I used to have a set of D90`s that were peppered with dust for track and a set of Cup 1`s for the road where I used OEM Textar pads.

Never tried Mintex but 1155`s or Pagids are soon to go on my Golf track car as I cant get PF for it but they and Ferodo DS2500`s get rave reviews so I`ll be interested to see how they perform on a sub 900kg car.

ATE boils at a higher temperature than standard fluids (also has a higher wet boiling point) and it is recommended you change it every year or twice yearly if you do a lot of track laps which isnt a chore. ATE comes in two colours, blue and clear so you know when you have pulled through new fluid [] ATE tends to be promoted as it is a good fluid at a reasonable price. If you research further you will see how much you can pay for top of the range fluids []

 

[Hilux]

You make a very strong case for the PF97, except for the fact that I am dreadful at cleaning my car. It can go for months. Although I have a spare set of wheels (teledials) the tyres are not trustworthy, and I've (quite) slowly wearing down the Bridgestone SO2's (which I find great) on my D90s.

Go for 1155`s then as they are a known quantity in 944`s.

If you`ve got 5.1 then unless it is an odd type ATE blue is fine to run through the system and offers much higher resistance to boiling but check before buying to be sure.

The SO2`s are sorely missed by many and I have two undamaged part worn SO2`s in my garage loft with about 5mm tread left. Came off my old 944T 9"rears so will be 245`s

I dont need them anymore and was about to put them on the market so if you`re interested make me an offer

 

[edh]

Use plenty of grease with 1155's - they can be a bit noisy.... A bit of extra cooling also works wonders.

FWIW i would recommend some track spec tyres once you're done with the S02's - even if you buy part used. They will give you much more grip, better braking, and in my experience will last a good while as they don't fall apart at higher temps.

- of course that also depends on whether your suspension is up to the job....[][] (no-one ever said track days were cheap [])

 

[amrbose14]

I've been able to get them fairly recently o'er t'internet. In fact I have two fronts sitting in my loft, waiting for the current ones to be too low. I'd be interested in the ones you have - only my non-S 220T has the smaller wheels (8 inch at the back??). I'm not sure if the 245s would fit? Or how the (lovely) balance would be affected with wider tyres at the back.

I'll defn look into getting some 1155s for when the current front pads are up for replacement. And think about the ATE too.

ta muchly.
Chris

ORIGINAL: Hilux

You make a very strong case for the PF97, except for the fact that I am dreadful at cleaning my car. It can go for months. Although I have a spare set of wheels (teledials) the tyres are not trustworthy, and I've (quite) slowly wearing down the Bridgestone SO2's (which I find great) on my D90s.

Go for 1155`s then as they are a known quantity in 944`s.

If you`ve got 5.1 then unless it is an odd type ATE blue is fine to run through the system and offers much higher resistance to boiling but check before buying to be sure.

The SO2`s are sorely missed by many and I have two undamaged part worn SO2`s in my garage loft with about 5mm tread left. Came off my old 944T 9"rears so will be 245`s

I dont need them anymore and was about to put them on the market so if you`re interested make me an offer

 

[amrbose14]

What do you consider track spec tyres? The SO2 seem to be pretty good to me. TheSO2s get quite sticky, no rolling off the rims, not too much chunking as long as I keep the hot pressures ~32 on the track (although I use 36 day-to-day).

My 22 year old non MO30 suspension would probably be a limiting factor, yes! Although is has been set up by Promax which made the whole car suddenly gorgeous to drive. And then there's the gutless wonder in the driving seat....

ORIGINAL: edh

Use plenty of grease with 1155's - they can be a bit noisy.... A bit of extra cooling also works wonders.

FWIW i would recommend some track spec tyres once you're done with the S02's - even if you buy part used. They will give you much more grip, better braking, and in my experience will last a good while as they don't fall apart at higher temps.

- of course that also depends on whether your suspension is up to the job....[][] (no-one ever said track days were cheap [])

 

[Diver944]

Track Spec tyres are what's known as R rated, ie they are road legal but are desiged for track use so have a compound that can cope with getting really hot, get stickier as they warm up and have minimal tread for dispersing water.

Common brands are:

Toyo R888
Michelin Pilot Sport Cups
Kumho V70A
Dunlop DZ02G
Yokahoma A048-R

 

[edh]

I think the 944 chassis is great on track even in stock setup - but it can be improved []

I was using some s/h P Zero C's - now with their third owner. I ran 225 all round (i find that a better balance than with wider rears). These have been supeceded by P Zero corsas now I think.

They were much grippier than my T1-R's, and lasted very well. I believe the 888's wear a bit quicker.

Maybe look for race teams / series running tyres that would fit your car - I used to pick up 15" slicks from a clio Cup team at £10 a corner. (not that I would suggest slicks for a 944 with std suspension)

 

[Peter Empson]

I've had the same problem with overflowing fluid, in my experience it seems quite normal and has become a bit more notcieable when running very sticky road tyres (888's). Pads are the brilliant Porterfields and there's no fade at all, reservoir is currently just over half full, pads are about half worn.

As expected I have found the wear rates of 888's to be much greater than T1-R's. If I'd have had a year with my normal number of trackdays I suspect I'd have got through 2-3 sets in the same time as one set of T1-R's which would have been costly. The extra grip is nice though [] The only other downside is they're useless on the road when it's cold or damp - I'm definately not trying in snow! (cold but dry weather will get wheelspin in a straight line throughout 3rd gear []).

 

[amrbose14]

Aha.... more tales emerge of fluid overflow. Good.

After all the good advice about tyres, pads and fluid, I'll probably just syphon off a bit of fluid for the next time (hopefully Rockingham some time in the spring)! And wait for all the other bits to wear a bit more. Leaving cash for new sills, rear disks, new exhaust...etc.etc. And of course more track days... it's easy to spend alot on making a car suitable for track days, and never get there.

cheers,
Chris

ORIGINAL: Peter Empson

I've had the same problem with overflowing fluid, in my experience it seems quite normal and has become a bit more notcieable when running very sticky road tyres (888's). Pads are the brilliant Porterfields and there's no fade at all, reservoir is currently just over half full, pads are about half worn.

As expected I have found the wear rates of 888's to be much greater than T1-R's. If I'd have had a year with my normal number of trackdays I suspect I'd have got through 2-3 sets in the same time as one set of T1-R's which would have been costly. The extra grip is nice though [] The only other downside is they're useless on the road when it's cold or damp - I'm definately not trying in snow! (cold but dry weather will get wheelspin in a straight line throughout 3rd gear []).

 

[amrbose14]

Something to consider when the current tyres become too worn down even for dry track use I guess. At this point I'm mostly rather chuffed that my old banger has sailed through 3 track days this year! Just a shame that it barely gets used for anything else these days (still not tried to make it baby friendly).

ORIGINAL: edh

I think the 944 chassis is great on track even in stock setup - but it can be improved []

I was using some s/h P Zero C's - now with their third owner. I ran 225 all round (i find that a better balance than with wider rears). These have been supeceded by P Zero corsas now I think.

They were much grippier than my T1-R's, and lasted very well. I believe the 888's wear a bit quicker.

Maybe look for race teams / series running tyres that would fit your car - I used to pick up 15" slicks from a clio Cup team at £10 a corner. (not that I would suggest slicks for a 944 with std suspension)