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Old 09-09-2019, 18:45   #1
Davey84
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Alcon 343mm vs 355mm

Looking into a brake upgrade.

Got the standard 4pot Brembo setup atm.

Looking at Alcon setups but canít decide on what size. Car has standard MR 17Ē wheels, I know with the 365mm kit I would need 18Ē wheels. Anyone know if the 365mm kit is worth the the added expense ( of buying new wheels).

Thanks
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Old 09-09-2019, 19:44   #2
dreMR
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I think the bigger rotors are mainly to handle more heat. Iíve got the Alcon temperature strips on my 343mm kit, i havenít had them hotter than the second temp mark on track and canít even get the temp to register on the road, also the 343mm kit is lighter which is good for unsprung weight.
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Old 09-09-2019, 19:51   #3
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https://www.rosssport.com/Brands/ALC...ALCTHS0080X285

The 18” wheels will be heavier than 17” as well as the 365mm rotors

Last edited by dreMR; 09-09-2019 at 19:53..
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Old 09-09-2019, 20:19   #4
Davey84
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Hadn’t thought about the extra weight! I have been on the look out for some wheels but like the ‘standard’ look a bit more.

The standard ones aren’t too bad day to day (although I’ve got godspeed discs and ds2500 pads) but last 2 trips to Germany,they’re goosed after 6-7 laps on the GP track.

I’ll check out the 343 kit, thanks
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Old 09-09-2019, 20:25   #5
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Hadnít thought about the extra weight! I have been on the look out for some wheels but like the Ďstandardí look a bit more.

The standard ones arenít too bad day to day (although Iíve got godspeed discs and ds2500 pads) but last 2 trips to Germany,theyíre goosed after 6-7 laps on the GP track.

Iíll check out the 343 kit, thanks


DS2500ís arenít known for being able to handle long periods of being battered on track. Pagid RS29 or Ferodo DS UNOís are a far superior pad for track use.


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Old 09-09-2019, 20:59   #6
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I saved three kg per wheel by Changing to volk ce28n 17Ē and could feel quite a difference so it is worth staying as light as possible.
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Old 09-09-2019, 21:34   #7
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Buy the 343mm kit and use with your standard 17Ē wheels, then if in the future you decide to go bigger wheels then theyíll still fit...

I have the 343mm kit to fit to my 9 and have some XP10ís to go with them...
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Old 10-09-2019, 06:00   #8
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DS2500ís arenít known for being able to handle long periods of being battered on track. Pagid RS29 or Ferodo DS UNOís are a far superior pad for track use.


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I agree on the DS2500 being fit for the bin only.

The RS29 though, is not a good pad for track IMO. I'd always regarded them as a halo pad, but they'd last 2-3 corners before becoming a juddery mess for me.

XP10 are the only pads I've not had any judder with. They're a noisy mess on the road though.

I run a 343mm kit, and they've so far fitted under neath:

17x9 ET27 Pro Race 1.2
17x9 ET22 TE37
17x8 ET35 Enkei Evo 8
17x8.5 ET30 TE37
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Old 10-09-2019, 06:45   #9
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I use endless me20 no noise on the road no judder on track but loads of dust!
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Old 10-09-2019, 07:10   #10
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I agree on the DS2500 being fit for the bin only.



The RS29 though, is not a good pad for track IMO. I'd always regarded them as a halo pad, but they'd last 2-3 corners before becoming a juddery mess for me.





RS29ís definitely hit or miss for some people. UNOís are better although dustier


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Old 10-09-2019, 11:39   #11
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does the dust from these “dusty” pads wash off easy from the wheels? Or does it bake itself on?
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Old 10-09-2019, 11:41   #12
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does the dust from these ďdustyĒ pads wash off easy from the wheels? Or does it bake itself on?


Doesnít Bake itself on and washes off easily but you need to keep on top of your wheel washing if you want them to stay mint. Wheel sealant used frequently does a good job


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Old 10-09-2019, 12:02   #13
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I was out in a road going Evo IX with XP10’s the other day. To be honest the squeal was minimal ? However it’s running Porsche RS callipers and 4 pot Brembos at rear, so maybe that helps? I was very very impressed with their bite. If the dust cleans off pretty easily then it’s worth it IMO
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Old 10-09-2019, 17:43   #14
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I was out in a road going Evo IX with XP10ís the other day. To be honest the squeal was minimal ? However itís running Porsche RS callipers and 4 pot Brembos at rear, so maybe that helps? I was very very impressed with their bite. If the dust cleans off pretty easily then itís worth it IMO
if you use the brakes properly from time to time, even XP's dont squeal. Mine were quiet unless I drove the car slowly in the city for a week or two and then they would start squealing at very low speeds. They just need the exercise.. LOL
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