SS lines for a firmer pedal?

slides · 06-10-2019, 03:55 PM

Just got back from another trip to RA and noticed my brake pedal gets softer towards the end of the braking zone. EX: 135mph - 50mph from 275/300ft out.

Would SS lines help keep it firmer? I'm using motul 600 and hawk 5.0 pads so I don't believe i'm over cooking the breaks....

bbnks2 · 06-11-2019, 08:32 AM

Quote:

Originally Posted by slides

Just got back from another trip to RA and noticed my brake pedal gets softer towards the end of the braking zone. EX: 135mph - 50mph from 275/300ft out.

Would SS lines help keep it firmer? I'm using motul 600 and hawk 5.0 pads so I don't believe i'm over cooking the breaks....

I doubt it has anythign to do with the brake lines. You should really look at running HP+ or better pads in general. 5.0 is a street pad comparable to OEM but with more initial bite/torque.

Reality is that you probably need to vent the brakes somehow if you are getting pads that hot. Add some ducts, bend the heat shields back, etc.

slides · 06-11-2019, 11:17 AM

I planed to run ducting before this event but ran out of time, instead I took off the entire heat shield. Not sure how well it actually helped cool the brakes.

Ill look into some better pad options.

Emilime75 · 06-11-2019, 11:28 AM

It isn't a heat shield so much as a debris shield, and it's supposed to aid in ducting air towards the center of the rotor so it can travel out through the veins of the rotor to cool it...at least that's the theory. Might want to look at this thread https://www.e90post.com/forums/showthread.php?t=889192

streetpro · 09-26-2019, 05:16 AM

I have noticed SS quite a lot in a street use, much firmer/instant response from the brakes, kind of like when braking with the ACC active (pre-boost feeling). And my old lines were perfectly fine.

roastbeef · 10-02-2019, 02:59 AM

you are absolutely over cooking the brakes. ss lines will improve feel, but won't help this problem.

Volasko · 10-04-2019, 01:45 PM

You can also looking into brass caliper bushings as a way to improve firmness. I have the ECS branded copper bushings and they did help a little bit. I find that my pedal gets soft too near the end of a session too. I have ECS SS lines too, but unfortunately I did the SS lines with the bushings so it was hard to tell which one had more of an effect.

Asbjorn · 10-30-2019, 11:21 AM

Brake pad type, and how well they are bedded in and kept in their optimum temperature window has far bigger impact on brake feel than SS lines. You still get soft pedal at the end of a braking zone with actual track pads if they are not bedded in properly and up to temp.

Jeff@TopGearSolutions · 11-07-2019, 03:53 PM

I love my SS lines. Great improvement in feel and response but this won't really help OP's issue. As other suggested, either more aggressive pads and/or more cooling. Also, the 600 fluid is great but it needs to be changed more often with that kind of abuse they are seeing. Since it is hydrophobic it's also susceptible to absorbing water, reducing boiling temp further.

06-10-2019, 03:55 PM	#1
slides Private 12 Rep 52 Posts Drives: 07 335I Join Date: Sep 2018 Location: Orlando iTrader: (0)	SS lines for a firmer pedal? Just got back from another trip to RA and noticed my brake pedal gets softer towards the end of the braking zone. EX: 135mph - 50mph from 275/300ft out. Would SS lines help keep it firmer? I'm using motul 600 and hawk 5.0 pads so I don't believe i'm over cooking the breaks....
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06-11-2019, 11:17 AM	#3
slides Private 12 Rep 52 Posts Drives: 07 335I Join Date: Sep 2018 Location: Orlando iTrader: (0)	I planed to run ducting before this event but ran out of time, instead I took off the entire heat shield. Not sure how well it actually helped cool the brakes. Ill look into some better pad options.
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06-11-2019, 11:28 AM	#4
Emilime75 Colonel 1225 Rep 2,476 Posts Drives: 2010 335i E92 LeMans Blue Join Date: Dec 2017 Location: Merica! iTrader: (1)	It isn't a heat shield so much as a debris shield, and it's supposed to aid in ducting air towards the center of the rotor so it can travel out through the veins of the rotor to cool it...at least that's the theory. Might want to look at this thread https://www.e90post.com/forums/showthread.php?t=889192
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09-26-2019, 05:16 AM	#5
streetpro Second Lieutenant 88 Rep 239 Posts Drives: e92 335iA Join Date: Nov 2018 Location: Prague iTrader: (0) Garage List 2006 Bmw e92 335iA [0.00]	I have noticed SS quite a lot in a street use, much firmer/instant response from the brakes, kind of like when braking with the ACC active (pre-boost feeling). And my old lines were perfectly fine. __________________ "If everything seems under control, you're not going fast enough.” Mario Andretti
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10-02-2019, 02:59 AM	#6
roastbeef Lieutenant General 11701 Rep 12,794 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	you are absolutely over cooking the brakes. ss lines will improve feel, but won't help this problem. __________________ Instagram; @roastbeefmike
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10-04-2019, 01:45 PM	#7
Volasko Colonel 724 Rep 2,609 Posts Drives: 06 330i E90, 18 530xe G30 Join Date: Dec 2010 Location: Toronto iTrader: (2) Garage List 2018 BMW 530e M Sport [9.00] 2006 BMW E90 330i [8.28]	You can also looking into brass caliper bushings as a way to improve firmness. I have the ECS branded copper bushings and they did help a little bit. I find that my pedal gets soft too near the end of a session too. I have ECS SS lines too, but unfortunately I did the SS lines with the bushings so it was hard to tell which one had more of an effect.
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10-30-2019, 11:21 AM	#8
Asbjorn Captain 93 Rep 833 Posts Drives: Z4 N54 DCT (VTT GC lites) Join Date: Mar 2012 Location: European in China iTrader: (0)	Brake pad type, and how well they are bedded in and kept in their optimum temperature window has far bigger impact on brake feel than SS lines. You still get soft pedal at the end of a braking zone with actual track pads if they are not bedded in properly and up to temp.
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11-07-2019, 03:53 PM	#9
Jeff@TopGearSolutions 3461 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	I love my SS lines. Great improvement in feel and response but this won't really help OP's issue. As other suggested, either more aggressive pads and/or more cooling. Also, the 600 fluid is great but it needs to be changed more often with that kind of abuse they are seeing. Since it is hydrophobic it's also susceptible to absorbing water, reducing boiling temp further.
	Appreciate 0 Quote