6/8 piston caliper and disc upgrade for F355 | FerrariChat

6/8 piston caliper and disc upgrade for F355

Discussion in '348/355' started by tonyyoshi, Mar 6, 2005.

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  1. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    Anyone know where I can get the above? Tracked my 355 this weekend at the brakes SUCK! My Elise was faster by miles. I know the brake kit will probably cost near US$10k but the car is ****e with stock brakes. Why oh why do people order these things with those teeny tiny 4 pot calipers????
     
  2. husky

    husky Karting

    Feb 13, 2005
    136
    Hong Kong
    Full Name:
    Patrick
    i know brembo has brake upgrade (both disc and caliper) for 355, if you want details i can find out for you

    as i understand there are a couple of shops that carry brembo brakes but i am not sure they have brake system for 355 in stock.....

    who was your track day anyway???
     
  3. winston

    winston Karting

    Nov 3, 2003
    139
    foothills
    Full Name:
    don
    Your Elise is nearly 1000 to 1300 pounds or more, lighter.
    How much do you want to spend?
    Winston
     
  4. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    I don't have a budget limitation. I was so pissed off with the brakes that money does not matter. I have an objective, to be able to do 15-20 laps with zero brake fade. Even if they're smoking afterwards, it'd be worth. I got thrashed at braking by some 996 twin turbos with uprated brakes... very embarrassing.
     
  5. f355b

    f355b Formula Junior

    Jan 23, 2004
    449
    Little Silver,NJ
  6. Kevallino

    Kevallino Formula 3

    Feb 10, 2004
    2,257
    Mid-Ohio
    Full Name:
    Kevin
    Wow - these are cool - 6 piston calipers and a 380mm setup for the 348/355.

    Cheers
    Kevin
     
  7. Nick

    Nick Formula Junior
    Sponsor Professional Ferrari Technician

    Oct 31, 2003
    506
    Full Name:
    Nick Scianna
    #7 Nick, Mar 7, 2005
    Last edited by a moderator: Sep 7, 2017
    I sell some 6 piston & 10 piston brake kits for Ferrari’s from Tarox
    Made in Italy.
    Front 6-piston kit sells for $2995.00
    Rears in 6 piston kit sells for $3095.00

    10 piston fronts sell for $3395.00
    10 piston rears sell for $ 3395.00

    2 piece 350 mm & 340 mm rotors
    Attached is a photo of a 6 piston Tarox brake kit.(Actual 355 kit may look slightly diffrent.) You will need to run 18 inch wheels with the kit.


    I also sell Brembo. Give me a call or e-mail for more info, maybe I can help.
    Here is my Brembo link on my site & also have the complete PDF of all Brembo caliper kits for all cars.
    http://www.nicksforzaferrari.com/forzaferrariwebsite1_046.htm
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  8. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    After discussing this with some 355 owners who have tracked their cars, it appears 6-8-10 pots are not the solution. More like big 4pot with 355mm discs just on the front would be sufficient. The rear brakes apparantly cope with the loading just fine.

    Thoughts?
     
  9. BigHead

    BigHead Formula Junior

    Oct 31, 2003
    995
    Outside of Boston
    Full Name:
    Dennis
    Stock brakes on a 355 are actually very, very good. I've got hundreds, if not thousands of laps on my street 355, and I can outbrake everything, with zero brake fade. With *proper* technique, you shouldn't have any braking problems, especially if you install a good brake pad (e.g., PFC-97). If you're still suffering, install brake ducts.

    If you're still having braking problems, consider going to the 355 Challenge brake package. You'll need new, bigger wheels to clear, but these suckers are incredible.

    vty,

    --Dennis
     
  10. spaghetti_jet

    spaghetti_jet Formula Junior

    Jan 5, 2005
    921
    Europa
    Full Name:
    Bob
    I have to agree with this comment. The 355 has good brakes for track-day uses. I strongly suggest you start by changing the front pads to a "fast" compound. Could be the previous owner fitted what we call here "pinco-pallo" pads. i.e. none-OEM cheap pads. Also, is possible the pads were badly bedded-in when they were new, this really ruin them for later if they get really cooked before bed-in. The other thing to do is change the brake fluid and to make sure there is no air in the system.

    On my car I also fitted goodgridge racing brake hoses, which can help pedal "feeling" a little bit if your hoses are getting hot and slightly balooning.

    Tarox, mintex, ferodo etc. all make pads for 355 in different compounds.

    After this modest spending, if you are not happy still then call the bank manager and change everything, caliper, disk etc.. !!!

    but from you discription, sounds like something is not 100% on your car.

    Have fun
     
  11. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    My car has new grooved discs, new pagids and new Motul Dot 4 fluid. The fluid was boiling after 5 laps. The track I was on had some very heavy braking points. I'm gonna upgrade the whole package.
     
  12. spaghetti_jet

    spaghetti_jet Formula Junior

    Jan 5, 2005
    921
    Europa
    Full Name:
    Bob
    for interest, how do you know the fluid was boiling ? Also, forget dot4, go for dot 5.1 mineral oil.
     
  13. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    bubbles and temperature.

    i know how to drive on the track and also know how good/bad the brakes are. they are totally useless on a circuit when driving against a 996TT with Ceramic brakes. period. anyone who thinks they can outbrake those cars with just skill for 10 laps is dreaming.
     
  14. spaghetti_jet

    spaghetti_jet Formula Junior

    Jan 5, 2005
    921
    Europa
    Full Name:
    Bob
    I see, thanks.
     
  15. maranelloman

    maranelloman Guest

    #15 maranelloman, Mar 8, 2005
    Last edited by a moderator: Sep 7, 2017

    I have to agree 100% with this. With proper pads fluid & air ducting, the 355 has astounding brakes. Tony....on track days, I didn't know you were racing other cars and driving "against" them.... I am always leery of folks who wanna outbrake other cars on non-competitive track days. Know what I mean here?

    As for 6 & especially 8 piston brakes for the 355?
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  16. f355b

    f355b Formula Junior

    Jan 23, 2004
    449
    Little Silver,NJ
    does increasing the size of the disc's make any difference or do you need to change calipers too?
     
  17. spaghetti_jet

    spaghetti_jet Formula Junior

    Jan 5, 2005
    921
    Europa
    Full Name:
    Bob
    Salve Maranelloman,

    Love the guage, I need one for my new sunglasses that I bought last week.

    Anyway, there's something wrong with this guys car. I just ask to a couple of technical frends here and they tell me is almost impossible for bubbling like boiling to be seen in the brake reservoir for 2 reasons, first, the bubbles cant pass backwards through the master cilinder, and second, for the reservoir fluid to boil is need to be reach 230 DEG C for DOT4 fluid -- not very probable in the reservoir itself.

    An another thing I think of (by myself this time :)), if the circuit has big braking zones, then this means there is big speed zones too, yes ? There should be lot of air coming into the air ducting and bringing the brakes temperature down, so maybe there is a dead hedgehog or some potatoes growing in the ducting ?

    Like someone earlier said, is a lot of dreaming happening.
     
  18. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    Sorting the ducting out shortly. I'm on stock size discs and calipers and they are fine for the first 4 laps but soon overheat. Maybe they would be fine if I was not pushing it but where's the fun in that?

    As for driving hard to keep up with the Porsches, I don't see the problem. They are just road cars too and I think a good measure of where I want the 355 to be, at least on the braking. I watched these guys to lap after lap without any brake fade and they are able to get some very astounding laptimes because of this. Their braking points were almost the same as a Formula 3 car.

    Horses for Courses. I want my 355 up to a similar standard and am willing to pay to get that done. Why stick with stock brakes when I can afford to upgrade them?

    BTW, just cos something is called trackday in the States/Europe, does not mean it means the same thing here. Our trackdays are not just sooped up road cars. We have racing teams tuning their cars on the track at the same time and we are all going for laptimes. Maybe I had'nt made that clear.
     
  19. ExcelsiorZ

    ExcelsiorZ Formula 3
    BANNED

    Nov 7, 2003
    1,267
    Beverly Hills
    #19 ExcelsiorZ, Mar 8, 2005
    Last edited by a moderator: Sep 7, 2017
    I'm presently having an 8 Piston Brembo system installed on my Ferrari, using 378 mm brake discs. While 355 discs may be adequate, I would note that Ferrari installed larger discs on the 360 and then larger discs on the Stradale. On the 430 they are larger still and feature six piston calipers!

    Your assessment of the Lotus compared to the 355 was right on the money.
    355 60-0 = 124 Ft.
    360 60-0 = 110 ft.
    Lotus Elise 60-0 = 105 ft.
    Porsche GT1 60-0= 98 ft.

    Bottom line, numbers don't lie. The benefit of the 8 piston brembo caliper is it uses four brake pads per caliper. This gives twice the leading edges and that much greater brake bit.

    The very big and very heavy Mercedes AMG SL55 stops 11 feet sooner from 60.
    Of course, these figures increase as speed goes up so I'd suspect the gap increases as well.

    So yes, that Lotus can brake much later into the turns than a stock 355.

    Another plus, the 8 Piston Brembo weighs less than the six piston Brembo.
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  20. husky

    husky Karting

    Feb 13, 2005
    136
    Hong Kong
    Full Name:
    Patrick
    nice looking stuff

    mmm.... ok the next question is how will they cost me???
     
  21. BigHead

    BigHead Formula Junior

    Oct 31, 2003
    995
    Outside of Boston
    Full Name:
    Dennis
    Might I suggest that before you spend $$$$ on new brakes, instead just put some brake ducts in? A few hundred bucks, at the most, and you'll have huge improvements in brake cooling.

    And also check out this on-topic thread:
    http://70.85.40.84/~ferrari/forum/showthread.php?t=3928

    As for Porsche ceramic composite brakes - yes they work spectacularly well, yes they absorb huge amounts of heat, BUT they wear out ridiculously quickly and are horrifically expensive to replace. Porsche now warns that track use will cause these "long-life" brakes to wear completely in ONE or TWO DAYS. Some GT2 owners have actually threatened to file a class-action lawsuit. The Porsche forums have a LOT of threads on this....

    vty,

    --Dennis
     
  22. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    Dennis, I'm definitely gonna do the ducting. Thing with the 355 brakes is well know at our track. Even the 360s suffer massively. I'm not 100% sure that what the 996TTs have are ceramic brakes. They might just be huge rotors with 6pot big calipers.

    The one thing though that has not been picked up on is that even when my brakes are at teh right temperature and everything, the porsches can still out brake the crap out of me. This is purely and simply cos they had better brakes. If they have modified their brakes to do this, then I accept the fact that I have to do the same.
     
  23. BigHead

    BigHead Formula Junior

    Oct 31, 2003
    995
    Outside of Boston
    Full Name:
    Dennis
    #23 BigHead, Mar 9, 2005
    Last edited by a moderator: Sep 7, 2017
    Tony, are you sure you're getting FLUID fade (boiling fluid) as opposed to PAD fade (overheating the pads, and reducing the coefficient of friction)? What exactly are the symptoms you're getting (aside from longer braking distances)?

    Common misconception - that upgrading brakes will automatically reduce braking distances. Nope. The car's ability to stop is a result of a variety of factors, the two biggest, by far, are the car's weight and the car's TIRES. A Ford Crown Victoria on racing slicks with stock brakes will outbrake the same car with giant brakes on street tires.

    Heck, a Crown Vic with racing slicks and stock brakes will outbrake a Lotus Elise with giant brakes on snow tires!

    Race cars have big brakes not because they're needed for the shortest possible braking distance, but rather to handle and dissipate heat and take the abuse of being used constantly. Take your 355, for example. With cold brakes, you'll get EQUAL braking distances with stock brakes versus big Challenge brakes or 8 piston Brembos (yes, you'll get different "bite" and "feel", but the distance will be the same).

    After all, when you hit your brakes hard, you can lock up the tires (assuming no ABS). So the LIMIT isn't at the BRAKE, but rather at the TIRE.

    So, why can a 911 out brake you? For a variety of reasons. If it's a 996 Cup car (as in one of your videos), it's probably lighter. It certainly has better weight distribution for braking (all that rear-end weight allows the rear tires to do more braking). It may have stickier tires. And, of course, the Porsches could have better drivers. :)

    There are a LOT of myths surrounding brakes. Check out the attached (zip file) article from Grassroots Motorsports for the real facts (the file also has a great article on the fact behind ABS systems). Sure, one may put big cross-drilled rotors and 8 piston calipers on the car for the bling factor, but if one wants functionality, one should spend the money on ducting, new pads and better fluid....

    vty,

    --Dennis
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  24. tonyyoshi

    tonyyoshi Formula Junior

    Jan 8, 2005
    308
    Hong Kong
    Full Name:
    Tony Brooker
    Dennis,

    Lots of good points. Thing is, my tyres did'nt really lock up at all. They faired very well considering. The ABS started to come on later. The Porsches were just 996TT cars with some suspension, tyre and brake mods. The one you're referring too was a Carrera Cup car and that was destroying the 996TTs. I understand and acknowledge everything you're saying but when your brake pedal starts to dive 5inches into the floor then clearly a) the hoses need to be upgraded to steel braided b) the fluid has boiled and cannot cope c) you're having to brake so hard because there is not enough disc to haul back the speed effectively. If the porsches are running with 355mm rotors, how can i compete with my 315mm ones?

    There was another 355 there that day and he had 355mm front rotors with brembo 6 pot calipers. He was running the same tyres I had. He was braking in line with the Porsches.

    I'm not dreaming this up.... :)
     
  25. slashmatt

    slashmatt Rookie

    Feb 7, 2004
    17
    You should read EVO's article about the BMW M engineering group. I wouldn't worry about the number of pistons as much as the size of the rotor. You should be worrying about heat dissipation. I think your problem is rotor size / rotor properties, not the number of pistons. I had a similar problem on my 2-piston NSX brakes. By purchasing [very expensive] multi-piece, heat treated, ventilated rotors just for the fronts, changing to a more agressive set of pads (carbon/metal Hawk pads), ss lines, and 600 degree fluid, my fade problem has disappeared. I didn't change the calipers, and I was right not to. There was no reason. It's not how much money you spend, it's how you choose to spend it. You could also look into some sort of air ducting system for the brakes as well.
     

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