GT3 LSD Performance Comments
Drifting
Joined: Nov 2006
Posts: 2,188
Likes: 6
From: Toronto
yes
not if it lengthens your stopping distance by 50% - it will actually likely be the cause of a new incident
We are not talking about old lady driving, sees accident in front of her, slams on brakes and is able to steer around crashed cars. What I am saying is, old lady sees accident, slams on brakes, brake pressure is released so that she can steer around accident (hopefully) but then hits dog running across street in front of accident because enough brake pressure was released so she could steer but stopping distance increased, possibly dramatically given the correct situation, and she kills the dog.
When ABS intervenes on a street GT3, you can guarantee your stopping distance is increasing - potentially dramatically in the wrong set of circumstances.
not if it lengthens your stopping distance by 50% - it will actually likely be the cause of a new incident
We are not talking about old lady driving, sees accident in front of her, slams on brakes and is able to steer around crashed cars. What I am saying is, old lady sees accident, slams on brakes, brake pressure is released so that she can steer around accident (hopefully) but then hits dog running across street in front of accident because enough brake pressure was released so she could steer but stopping distance increased, possibly dramatically given the correct situation, and she kills the dog.
When ABS intervenes on a street GT3, you can guarantee your stopping distance is increasing - potentially dramatically in the wrong set of circumstances.
Rennlist Member
Joined: Aug 2001
Posts: 15,081
Likes: 312
From: san francisco
Now with 6 cupcars they have abs so as u say u can ^go deeper with brakes wo abs. Did 6 cups remove abs? Sorry for ^all these silly questions. Since my car will be solely a trackcar with a few races mixed in would u recommend I take out abs? Mike
Rennlist Member
Joined: Aug 2001
Posts: 15,081
Likes: 312
From: san francisco
I know it's different abs then street. Racing sanctions deem 7cupcars to have ^no abs. Just want to know if by 997gt3north's logic that wo abs they can ^go deeper into brake zone or at least better modulate the brakes. Just wonder if any 6cupcars removed their racing abs if that is the case with better braking wo abs. Mike
Rennlist Member
Joined: Jun 2007
Posts: 5,158
Likes: 5
From: Seattle, WA
I was wavering between this and the 50:80 and based on my use and tracks, Matt advised 40:60
However, be careful talking to Matt.. you might end up with new gears and a ring and pinion to go with your diff
Three Wheelin'
Joined: Oct 2004
Posts: 1,696
Likes: 47
From: Stevenson Ranch, CA
Have you guys with the 40/60 LSD or 50/80 LSD had to change your alignments much to compensate for the increased rear lock up and grip and to help with the increased front end push?
Have you maybe stiffened rear sway bar one setting?
Have you maybe stiffened rear sway bar one setting?
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Rennlist Member
Joined: Sep 2002
Posts: 4,167
Likes: 508
From: In a van down by the Ottawa River ...
I assure you my 40:60 is totally streetable with no downside whatsoever
I was wavering between this and the 50:80 and based on my use and tracks, Matt advised 40:60
However, be careful talking to Matt.. you might end up with new gears and a ring and pinion to go with your diff
I was wavering between this and the 50:80 and based on my use and tracks, Matt advised 40:60
However, be careful talking to Matt.. you might end up with new gears and a ring and pinion to go with your diff
Drifting
Joined: Nov 2006
Posts: 2,188
Likes: 6
From: Toronto
I would describe my car as high speed neutral to very slight push
Car (997gt3 mk1)
- 997gt2 rear sway on soft (this is slightly stiffer that the stock bar on hard)
- front bar as delivered
- front camber -2.7 with slight toe out
- rear camber at -2.2
- I run the RS wing at 12 degrees all the time (this gives me the confidence to take Mosport turn #4 with the rear end firmly planted)