Nissan 370Z Forum  

Ice mode solution?

Well I got to think on (and play with) this all day, and I think my initial reaction to "oh no I have to deal with ice mode" was overreaction.

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Track / Autocross / Drifting / Dragstrip


Like Tree61Likes

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 01-22-2012, 09:02 PM   #10 (permalink)
A True Z Fanatic
 
wstar's Avatar
 
Join Date: Mar 2009
Location: Houston, TX
Posts: 4,024
Drives: too slow
Rep Power: 3595
wstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond repute
Default

Well I got to think on (and play with) this all day, and I think my initial reaction to "oh no I have to deal with ice mode" was overreaction. There's a few layers of analysis here, not sure what order to put it all in, and I'm trying to avoid my tendency to get really long-winded . But the bottom line in my case I think is:

An additional major contributing factor was front pad fade on the XP8s, even on my street tires. When the fronts start fading, of course the bias goes to the rear, which helps kick on the ice-mode.

Based on that alone, it would seem like it would be best to up the fronts to XP10 (at least) and get my brake ducts finished, which should lessen both the fade and bias contributing issues.

But, a major contributing factor to the pad fade (well, aside from lack of ducts) was that I was carrying around a lot more speed due to some skills improving, but I was abusing the brakes way more than I should have had to. We corrected some of this today, and I was able to make even faster lines with less brake abuse, and it helped a lot. I still got some ice-mode late in a hot session, but I was able to modulate through it and come out ok, and after pushing through that barrier for a bit, the XP8 front pad fade of course starting becoming increasingly obvious.

So really, learning to use the threshold better (so I'm not dipping into ABS in the first place), and not abuse my brakes in ways that aren't even warranted will go a long way towards fixing this for me on a practical level, although the ducts certainly can't hurt as well. Even then, I'm still going to be pushing the limits of the XP8's on street tires, but I think trying to upgrade the pads too far against these tires is probably a bad idea (just going to be a lot more touchy and sensitive on the ice-mode line when it does hit it), and I also think I haven't learned enough of the limits of these tires to consider upgrading to slicks either.

Really, where that leaves me for reducing the overheating problem is I need to not go balls out on the straights. If I held back at say 70% throttle on those long straights instead of flooring it, I wouldn't have as much speed to shed, and the braking system and the tires would all line up with my driving skill in the corners and work properly. In other words, even my lowly NA V6 really has a little too much power on tap for an ideal learning environment at my level of skill, if I want the rest of the system to hold up to a long session.

One way or another, I can play with modulating through the fade + ice mode and/or reducing my straight speeds and mitigate the ice-mode while continuing to learn how to push these tires to their fullest, and then consider further true tire+brake upgrades later when I'm ready, I think. The ducts will go on ASAP though
__________________
7AT Track Car!
Journal thread / Car setup details

Last edited by wstar; 01-22-2012 at 09:05 PM.
wstar is offline   Reply With Quote
 

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
rear cargo net solution autopc25 Exterior & Interior 20 03-06-2012 12:25 AM
POSSIBLE solution to opening top with FOB key......and MORE Evildmx Nissan 370Z Roadster (Convertible) 89 07-28-2011 07:26 AM
Possible Mirror Solution or Customizable? 370zsport09 Exterior & Interior 9 08-19-2010 08:49 PM
Any harm to switching from auto mode 'D' to manual mode and back while driving? Lee123 Engine & Drivetrain 14 05-19-2010 07:10 PM
Paint issues/Solution feelzpwr91 Exterior & Interior 28 04-15-2010 03:56 PM


All times are GMT -5. The time now is 09:17 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2