Ice mode solution?

cossie1600

I have donr the xp10 and stock pads setup, you will dtill get ice mode

ChrisSlicks

Aggressive bit pads with street tires is a tough combination as well. It is very easy to over apply the brakes too quickly before the weight has transferred forwards, especially in the wet.


It is not a solution but it does help.

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travisjb

very true! particularly with stiff springs up front and aggressive front pads - this car has forward weight bias and will bite hard... I found that by playing with tire pressures and dialing in the front dampers I was able to deal with it somewhat

tempting to run very soft brake compounds front and rear to see if the car behaves better... how much ice mode have we seen on completely stock brakes? there was that media incident... others?

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2009 370Z #104
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SPOHN

Could you please explain this more? It's obvious to me our cars have forward weight bias. So how does having stiffer springs up front effect weight transfer towards the front? Never really thought about this before so I don't really know. Seems it would be the opposite. But I also know how that goes.

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ChrisSlicks

In my experience it is worse with softer springs as there is more compression and a longer time period during which the weight transfer is occurring. I can reproduce this somewhat if I run the dampers near full soft as I do sometimes in the wet. With the stiffer setup there is less dynamic weight transfer and the time period during which the transfer occurs is shorter which means you can get on the brakes harder and sooner.

This is one of the reasons I like the lower torque compounds, however it can be tough finding a low torque compound that can handle the heat. Last year I ran an endurance racing compound, the (CL Brakes) RC6E which is only 0.5 on the friction scale but can take a ton of heat and is very consistent. It's probably a little harder on the rotors, but for me after a season they are done anyway from heat fatigue. I think the RC6 compound is very similar but more rotor friendly (and wears twice as fast). Next season I will compare them with the slightly more aggressive RC8 compound (about 0.62) and see if I have more difficultly staying out of ice mode. The comparable information I got about Carbotech is XP8 = 0.55, XP10 = 0.60, XP12 = 0.65.

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SPOHN

This is how I would think of it also.

Stiffer springs up front along with stiffer damping would only allow slower resistance of weight transfer.

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AutoX Z

I run completely OEM brakes and get engage ice-mode at will. I've learned to drive around it and it is rarely a problem anymore.

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ChrisSlicks

I had it on the OEM setup at auto-x as well. It would only present itself towards the end of the session when things were warmed up. Everything in auto-x is much more deliberate and sudden that I think it was just easy to catch the ABS system off balance. When I went smoother on the brake pedal it was avoidable in this case.

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Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms