I have not yet driven my car in ambient temps lower than 70 degrees. However, driving a bone stock Z06 last year, I couldn't get traction for $hit during the winter months. And, it does NOT get all that cold here. Basically, what I found was that I'd spin all the way through first and second if the temp was much below 70.

I am expecting traction to be better in the 996TT due to AWD and a power band that is shifted a bit higher in the RPM range. That said, I'm still a little concerned about it. Here are my questions:

1. What have others experienced in temps say between 40 and 65 degrees? Is traction reasonable?

2. Has anyone tried a DOT race compound to try to improve grip off the line in cooler weather?

By the way, I am not too concerned about lateral grip. Slipping is fun and, hey, if I can slip laterally at a slower speed, well, it just reduces the odds of a ticket.

But, coming off the line, in that off chance I get to take a run against a Ferrari or something else like that this winter, I'd like to be able to hook up reasonably well.

Thanks in advance,

-Donn

 

Very funny Donn. I think the same way. A lot of poeple don't like driving or racing in the rain. I like it because I get to go to the limit at lower speed ... and therefore less risk. Although it is exhausting.

Usually the softer compound tires get rock hard when cold. I usually have a winter set and a summer set of rims and tires. Just bolt on and bolt off. Way better traction this way.

 

Tim -

So which set of tires would you use when the temps are 50-75 degrees? We race during this time of year and of course the race tires work better. You just have to get them heated up with one hot lap. So, would you use the race compound, thinking that it would warm up at least enough to be stickier than the street compound? Or use the street compound, thinking that the race compound would not warm up sufficiently to be incrementally sticky? Again, this is for street use...

 

Sorry Racer, I forgot you are in warm land, I'm in Chicago. If it only got to 50 for cold (to me that's still warm), I would think the street would be acceptable and just as you say, warm them up on the track. I have had some problems below 50 for street use but really bad below 40 and below 30, forget about it. The tires become so firm that you have about half the normal tire traction.

I have not tested this since installing my data acquisition system but when I get my issues ironed out on my TT, and put a system in there, I will try to tell you what linear g's I can pull on braking with R-compound and snow tires and a cool day (50 or so)

Tim

 

Tim -

As a fellow data junkie, that would be fantastic! If you could do that for me I'd be eternally greatful!

-Donn

 

Donn:

Wait until you see me get the car on the skid pad and dosument the differences at different PSS9 settings, sway bars settings ....

Then I think the majority of the rest of the people on this forum (and everywhere really) will udnerstand the difference between opinion and fact.

Now, if I can get my car situation resolved and get on with my testing.

 

Yes. I am very interested in those data as well!

 

Tm - I would be interested in those numbers too so that I can adjust my H&R sways and PSS-9 settings accordingly...Currently they are on 3 all around and sways are on middle front and rear

 

Mansour -

Was it you that said (a few weeks back) that on a settting of 3, the ride was actually more compliant than stock? (Just trying to gauge the extent of trade-off between ride quality and handling again...)

-DV

 

I think it could have been me or John D II
These were my first impressions https://www.6speedonline.com/forums/...ght=pss9+first

 

Thanks Mansour. That wasn't the thread I recalled... Could it have been on Rennlist? Sounds like 3 is a good baseline though.

 

I posted identical posts on here nad rennlist...If thats not it then it might have been John D II...

 

Could be. Thx.