Ice mode solution?

chuang895

Hi Shamu,
I was thinking about proportional valve too as it may be the most cost effective way to fix ice mode for now until a race abs is used.
May i know the tire spec, bbk, and pad you are using?

I will use r888 as i got pretty good deal here.

Thanks lot

wstar

I'm sure a lot of it is track, driving style, suspension setup, etc, etc. My last few times out I've had zero Ice Mode issues (after having it a few times before). Doing some "biasing" via pads (softer pads in rear) helped a little but it was still there (but much easier to manage), when I was on Carbotech. When I switched to CL's RC6/RC5+ pads I also backed off my rear swaybar by one stiffness setting, and between the two it went away completely. I think the sway may have been more influential than the pad change - a little less stiffness in the rear = less likely for a rear tire to catch air in a bumpy braking zone and lock up for a split second to trigger it.

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Shamu

It may also be due to fact I run bigger tire and stagger than many of you guys. I run 315 rear and 295 front. I also have pads that dont bite hard in rear and have huge Brembo clampers in front.

But I did go from ice mode on regular basis to none after the vaccum fix. I also had a faulty rear caliper that was causing issues.

But now Im just simplifying as I dont want to deal with posibility of ice mode. with new 335 rear and 315 tire setup Im confident that lack of abs wont be a huge deal.

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Grant

DR_

You are making your contact patch wider and your tires will take longer to come up to temp, both of which make locking up easier.

Shamu

Lol. I knew I should be downsizing tires. I've been doing this a while. Can assure you I won't have trouble getting these A6s warm.

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Grant

Apollo8642

Easy fix ever heard of tire warmers.

Shamu

Naw I m pretty sure 3000 lbs of car, driver and fuel will be plenty to get soft compounds up to heat very quickly.

As a hillclimber I'm pretty good at figuring out my maximum width as there is no time for tire warming. Bring rears up with a burn out in staging and with big heavy front end 315s come up to temp very quickly.

I have run this car with 285s in back, 295s, 315s and now 335. That rear end even on first few laps stayed better stuck with bigger tires. It's just compound management.

If this was a 2500 lb car I'd agree tougher to get tires up to temp but this is a heavy car. I have over heated r6 295 in this car.

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Grant

cossie1600

I got less of it with the XP8 vs. the XP10 too. I am not even sure if it is a balance thing, but annoying nontheless

Elmo370z

Yaw Sensor Fix - Track Talk - Zclub - Australia's Largest Nissan 370Z and Nissan 350Z Forum

Anyone thoughts on this

Rusty

Where you been? Old news that's works. It's been talked about a lot. I did this over the winter. I'll be using it on my next trackday.

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Elmo370z

I know, i know. I just been so focused on the motor aspect of my build.

andy_meng1024

Anyone knows what parts I need to get to fix the vacuum issue? Thanks.

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synolimit

No ice mode here running xp12/xp10 on RS-3's but after reading Dorans possible issue with the pads not releasing and understreer as a result might be my issue! My cars got horrible understeer and even worse snap oversteer when I try to correct it in a turn. I've added my rear sway back in to see if it'll help and give back some oversteer but one suggested is to put the OEM rear pads back in. Also going to check alignment, have Stance fix my rear coils for better adjustment and go from there. I still think an ABS delete and proportioning valve is in my future.

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Elmo370z

Lets us know how your results go?

street2soul

I pulled the yaw sensor, and it still does not completely cure the ice mode. It cured the ice mode while trail braking, but i do not have complete faith on the straight line braking.. Also ran into SEVERE ice mode on wet skid pad which caused me to nearly go off and hit the parked trailer at shenandoah. Only "guaranteed"cure while on stock system everything + yaw sensor removal is to get grippiest tire to prevent almost all tire slippage. This is extremely distressing and made me lose all faith on braking after almost 30 track events