Ice mode solution?

AutoX Z

Whenever I hit "ice mode" the pedal is hard as a rock. It maybe moves 30% then is solid with the ABS going and almost no braking force.

__________________
2013 SCCA Solo National Champion
VVV For Sale VVV

Ruff

Same thing as in the 350Z.

Pedal going soft and further then usual, is boiled fluid...

__________________
SCCA Solo STR #193 - MX-5
SCCA Solo BS #42 - Solstice GXP - Sold
2006 Silverstone 350Z -Retired from autox.

spearfish25

With track pads, I can make ice mode happen at will. All you have to do is stomp the brakes as hard as you can. The ABS will come on, the pedal will be rock solid, and the car will initially bite and then braking force goes to $hit. If I keep constant hard pressure, the car bites and lets go, bites and lets go...until I'm stopped. Stopping in the autoX stop box is embarrassing.

__________________
2013 Cadillac V-Wagon, RIP Z

tyler20c

Two questions- could someone potentially experience ice mode during a panic stop on the street? and how the hell has nissan not gotten sued over this yet?

ChrisSlicks

It can happen on the street, but I could only reproduce it on the street after thoroughly heating up the brakes with lots of hard deliberate braking and then driving around casually for 10 minutes. It seems unlikely on the street, but with the right conditions I suppose it could happen.

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

spearfish25

I'm convinced I had ice mode during my accident in December. Only caveat was that I was on ice.

__________________
2013 Cadillac V-Wagon, RIP Z

Shamu

Id be intersted to see if another 370Z could brake as well as my car in braking zone with my ABS off. I can threshold brake with minimum of lock up and never have to deal with ice mode or even overly aggressive abs mode on fast deep braking zones. I know I couldnt come close with my abs system on. I'm an aggresive and deep braker but I am smooth as I dont lock up my tires or unsettle the car even with abs off.

For me a poorly designed abs system like the stock system on the 370Z is worse than no abs with a skilled driver when your on a track that requires threshold braking from high speeds

__________________
Grant

spearfish25

A car with a skilled driver and no ABS will stop faster than a car with ABS. It's well known that ABS increases braking distances. But it's the best solution for people who won't threshold brake correctly.

__________________
2013 Cadillac V-Wagon, RIP Z

ChrisSlicks

This is true in a straight line. However when you're braking mid corner (not uncommon in auto-x) or don't have your brake bias dialed in then it will be longer and/or increase your chance of lock up.

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

travisjb

also pretty typical in a passing situation... I locked up and had a couple offs trying to pass on a dirty line, was exacerbated by a bad setup and my lack of threshold braking skills but clearly would not have happened with ABS

__________________
2009 370Z #104
*For Sale*

cossie1600

I was busy and had to leave my XP10s on the past two weeks. In an autox at a smooth lot two weeks ago, the brakes were fine. On a bumpy lot this past Sunday, I experienced ice mode no matter how soft or hard I got on the throttle. I ended up having to brake at least one set of gate earlier and I still had trouble making through the turns as the brakes would grab and then go into ice mode. I understand my race pads had everything to do with it, but god the ABS is awful. Brake temperature might not help the situation, but I can tell you ice mode hit from turn 1 to the last turn. It just wouldn't go away no matter what I tried. The aggressive pads and the less than ideal surface had everything to do with it. I had no problem at a smooth lot just a week ago.

laze1

I fixed my 350Z by removing the Yaw-sensor that controls the VDC...then all my braking issues went away. Mainly the hard pedal and the inside corner brake overheating (VDC was trying to straighten the car out of a slide)...all these occurred during full-on track seasons with OEM Brembos and Carbotech XP10 F & R, Hoosier R6 tires...

Not sure if this can be done on a 370Z, But I would assume so...

http://my350z.com/forum/5506158-post1.html

cossie1600

If you are tracking with your VDC, you have more to be concerned about than just ice mode

laze1

Note sure what you are implying here...

but even when you push the VDC button to turn it off ... VDC/Brake Control are still functioning but on a diminished level.

cossie1600

VDC no, ABLS and EBD yes. Computer doesn't apply the brakes for you with the VDC off. If you do use it, it would distribute the braking force accordingly.