Air intakes - Improved cooling
Discussion
I was having a flick through the classifieds here on PH and noted a 944 race car that had air intakes in where the fog lamps would have normally been.
I had some problems with high temperatures both of engine and brakes on my recent trackday - so where can I buy these 'intakes' to help channel some air to the warm bits?
Any other hints and tips on cooling in general gratefully received
I had some problems with high temperatures both of engine and brakes on my recent trackday - so where can I buy these 'intakes' to help channel some air to the warm bits?
Any other hints and tips on cooling in general gratefully received
TBH I'd be a bit surprised if you need much more cooling for either. Might be worth checking / flushing your cooling system first.
What tyres / pads are you using?
Track spec pads would help as they will continue to work at higher temps. I don't think there's a great deal of choice for the Lux calipers though. Mintex 1155 are a good mid range choice, Pagids will be good but pricy. Maybe EBC yellows as a last resort
It's often suggested that short, hard braking will also create less heat than longer, softer braking. You should be able to really stand on the pedal in the dry.
Plenty of places sell brake ducts & hoses - try merlin motorsport
What tyres / pads are you using?
Track spec pads would help as they will continue to work at higher temps. I don't think there's a great deal of choice for the Lux calipers though. Mintex 1155 are a good mid range choice, Pagids will be good but pricy. Maybe EBC yellows as a last resort
It's often suggested that short, hard braking will also create less heat than longer, softer braking. You should be able to really stand on the pedal in the dry.
Plenty of places sell brake ducts & hoses - try merlin motorsport
I run ebc yellows on a 924S track car- so same brakes as yr lux, no not the best in the world but really no complaints either for the price, I've got 3 track cars at the mo & I run ebc yellow on 'em all & the one I've just sold also had yellows on, of all those difernt cars only on one am I not that impressed with the yellows, but ebc always change compounds so might have got a duff set as i did a few yrs ago warranty replaced tho.
For the 924 I bagged 'em trade 60 quid whole set inc postage, pagids were something like 250 just the fronts ;-)
With good cooling unless you are racing you could prob get away with standard genuine quality Porsche pads ok, prev owner of mine did anyway.
Cooling ducts get from any motorsport supplier, Rally design, Demon tweeks Merlin etc, can get the pipe ducting too, aim the airflow to disc, but check no rubbing on full lock, running race brake fluid- race blue from gsf is inexpensive & effective, feeling rich get some pricey stuff like SRF, I prefer the cheaper stuff & just bleed the calipers every couple of TDs & change fluid yearly, taking the splash guards off the front dics is a must.
For the 924 I bagged 'em trade 60 quid whole set inc postage, pagids were something like 250 just the fronts ;-)
With good cooling unless you are racing you could prob get away with standard genuine quality Porsche pads ok, prev owner of mine did anyway.
Cooling ducts get from any motorsport supplier, Rally design, Demon tweeks Merlin etc, can get the pipe ducting too, aim the airflow to disc, but check no rubbing on full lock, running race brake fluid- race blue from gsf is inexpensive & effective, feeling rich get some pricey stuff like SRF, I prefer the cheaper stuff & just bleed the calipers every couple of TDs & change fluid yearly, taking the splash guards off the front dics is a must.
Good advice chaps!
I am currently on standard pads (which were pretty old), whatever brake fluid wasm in it, and on toyo888's - It was a first outing (tester day) so I guess things were bound to get a little hot under the collar down there, and I didnt expect to be that quick or that taxing on the consumables (I really really wanted to be much later on the brakes by the end of the day but had to go easy to so a long pedal).
I will change pads for my next trip, and will be putting in some proper brake fluid, doing an oil change and general check over.
I also intend in the meantime, to take the radiator off and flush it through to make sure of maximum flow round the system, I understand standard anti-freeze is the norm?
So, what the general opinion on brake pads then - price V performance?
I am currently on standard pads (which were pretty old), whatever brake fluid wasm in it, and on toyo888's - It was a first outing (tester day) so I guess things were bound to get a little hot under the collar down there, and I didnt expect to be that quick or that taxing on the consumables (I really really wanted to be much later on the brakes by the end of the day but had to go easy to so a long pedal).
I will change pads for my next trip, and will be putting in some proper brake fluid, doing an oil change and general check over.
I also intend in the meantime, to take the radiator off and flush it through to make sure of maximum flow round the system, I understand standard anti-freeze is the norm?
So, what the general opinion on brake pads then - price V performance?
I find that EBC Red Stuff are OK, never get any brake fade and quick to warm up. They have a new improved compond now and are much better than they were, these are about the best price v Performance I have found. Mintex better but more expensive and at the top of the range then Carbon Lorraine.
Biggest problem I had with my brakes were fluid related rather than the pads, fluid boiled but a change to Dot 5 sorted that out.
Biggest problem I had with my brakes were fluid related rather than the pads, fluid boiled but a change to Dot 5 sorted that out.
I used EBC drilled/grooved disks and redstuff pads on my MX6 round the nurburgring and they performed very well. I have no ABS so the control through the pedal was excellent but they do tend to wear quite quickly.
I've now changed to larger disks/calipers but stuck with the redstuffs as theyre a good road/track pad for a mid-range powered car (200bhp).
I've now changed to larger disks/calipers but stuck with the redstuffs as theyre a good road/track pad for a mid-range powered car (200bhp).
I'm not surprised you had brake issues - track tyres will let you work the brakes much harder. And who knows how old the brake fluid was!..
High boiling point dot 4 is fine - Motul RBF for example. EBC sounds like your best budget option for pads - I used reds on a 924S & while they worked fine, I didn't really like the feel.
- btw cooling air should be fed into the centre of the disc for best effect (standard Porsche - or Sebro discs will be fine)
High boiling point dot 4 is fine - Motul RBF for example. EBC sounds like your best budget option for pads - I used reds on a 924S & while they worked fine, I didn't really like the feel.
- btw cooling air should be fed into the centre of the disc for best effect (standard Porsche - or Sebro discs will be fine)
)I wouldn't recommend redstuff pads I had a set completely crumble on me braking after a long straight and wouldn't trust them again. That was with about 750 road miles and on first track day 
Ebc disks are ok but I ended up getting lots of little cracks in them, were fitted same time as the redstuff pads and on R888s
Found ds2500's were pretty good but will be using some brembo or ds3000 pads next time!
This was in a 225bhp car weighing about 1400kg
I plan on removing my fogs to use air ducts to cool my brakes & supercharger, will b doin this over winter
Ebc disks are ok but I ended up getting lots of little cracks in them, were fitted same time as the redstuff pads and on R888s
Found ds2500's were pretty good but will be using some brembo or ds3000 pads next time!
This was in a 225bhp car weighing about 1400kg
I plan on removing my fogs to use air ducts to cool my brakes & supercharger, will b doin this over winter
Edited by T180985 on Wednesday 24th November 15:30
Im running 888s on the 182, use DS2500s and brembo plain high carbon discs with standard calipers.
Ive made some ducts with the standard foglight surround and an "aero port" for a speaker from maplins. Run the ducting to a ali deflector.
I find the biggest problem is the fluid, im running castrol super dot 4 (1 down from SRF) and get a long pedal towards the end of a session. Im also having problems with pad pickup which I presume is a sympton of the pad getting too hot.
Ive made some ducts with the standard foglight surround and an "aero port" for a speaker from maplins. Run the ducting to a ali deflector.
I find the biggest problem is the fluid, im running castrol super dot 4 (1 down from SRF) and get a long pedal towards the end of a session. Im also having problems with pad pickup which I presume is a sympton of the pad getting too hot.
T180985 said:
I wouldn't recommend redstuff pads I had a set completely crumble on me braking after a long straight and wouldn't trust them again. That was with about 750 road miles and on first track day
Ebc disks are ok but I ended up getting lots of little cracks in them, were fitted same time as the redstuff pads and on R888s
Found ds2500's were pretty good but will be using some brembo or ds3000 pads next time!
This was in a 225bhp car weighing about 1400kg
I plan on removing my fogs to use air ducts to cool my brakes & supercharger, will b doin this over winter
Wow you must have got them hot, or were they the old version which did have that problem?Ebc disks are ok but I ended up getting lots of little cracks in them, were fitted same time as the redstuff pads and on R888s
Found ds2500's were pretty good but will be using some brembo or ds3000 pads next time!
This was in a 225bhp car weighing about 1400kg
I plan on removing my fogs to use air ducts to cool my brakes & supercharger, will b doin this over winter
Edited by T180985 on Wednesday 24th November 15:30
I have had mine smoking several times and no problems so far but the pad wear does seem high but the discs seem to be lasting better than they were with the Ferodo pads that were on it before.
Can get the scoops from Demon Tweeks or Merlin Motorsport.
I use one to run a cold air feed from the fog light gap to the airbox. Need a bit of cutting to get it down to shape, but does the job.
They have a few different shape and size ones on their sites.
I was more suprised at how much the ducting was than the actual scoop.
I use Ferodo DS2500s. Seem to be a good compromise between cost/performance.
You can get more aggresive pads, but they squeek a bit.
Braided hoses should help with the pedal feel aswell.
I use one to run a cold air feed from the fog light gap to the airbox. Need a bit of cutting to get it down to shape, but does the job.
They have a few different shape and size ones on their sites.
I was more suprised at how much the ducting was than the actual scoop.
I use Ferodo DS2500s. Seem to be a good compromise between cost/performance.
You can get more aggresive pads, but they squeek a bit.
Braided hoses should help with the pedal feel aswell.
I fitted cooling ducts to my 993 - they made a huge difference, but it was a pig of a job to do.
Things I would do in order to improve your brakes (in order):
1. new good quality Dot 4 fluid (ATE Blue, Motul RBF, etc.), change it regularly
2. new pads - pref. Pagids (I used RS4-2 blues on the 993 and now RS14 on the Elise)
3. new discs if required
4. new braided hoses (probably won't do much but its only £50 so why not)
5. cooling ducts
All of that on the 993 gave me absolutely immense brakes, while still running standard calipers and discs.
Things I would do in order to improve your brakes (in order):
1. new good quality Dot 4 fluid (ATE Blue, Motul RBF, etc.), change it regularly
2. new pads - pref. Pagids (I used RS4-2 blues on the 993 and now RS14 on the Elise)
3. new discs if required
4. new braided hoses (probably won't do much but its only £50 so why not)
5. cooling ducts
All of that on the 993 gave me absolutely immense brakes, while still running standard calipers and discs.
Baby Blue said:
Do bear in mind if ur pads were half worn or more they just wont disipate the heat well ..................discs will warp quicker etc ......all thaqt plus old fluid not happy picture ...........
Yep, true. But I was doing a lot of little short runs with big gaps in between just to get a taster and to sus the car out really.
I'll have a look on Demon Tweeks and Merlin and see what they have - I think just throwing a bit more breeze at the new pads and the brake area seems like a fairly minor adjustment to make. Plus the obvious advantage with mine that its a purely track orientated car so no real worries with cutting things in to fit or MOT worries etc etc.
Some good advice and some all important details listed above for me to get kitted out - thanks!
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