SO here is an interesting comparison. The left graph is with a new set of PZeros back when the car only had 4k miles on it. They were the original tires except the right rear was completely new since it was replaced under tire warranty a week after I got the car. This was the first run I made with the FVD piggyback and I cut a 1.59 60ft on the county road at 75F. The second graph is two years later with a set of PZeros that have two track events on them and about 6k miles or so. The temp is 81F and so I should get good grip but the car spun like crazy and I got a 1.72 60ft. Still the ET is better than with the piggyback and the tires are probably pretty hard due to the vulcanization but the 60-130 was 7.48s compared to 8.09s with the piggyback and the trap was 131.37 vs. 129.45. After the initial traction advantage the power of Stage 4 shows up but it still potentially has traction issues which could be the reason the rev limiter is coming on. The Porsche tech thinks that is possible, Carlos does too. I am waiting to be convinced, hopefully the car is available tomorrow and I can get out to the CR in some 60 degree weather which is ideal.

Assuming this is traction, I should see 10.3 @ 134-5 on pump gas.

 

I forgot G what did your car do in the 1/4 bone stock again? Stage7 also did 132 and 10.29 with your set up![/QUOTE]

You talkin to me ?

 

They don't make them in the size.

 

Hey buddy, no the other G. Awesome!

 

Here is my run from this weekend with 50 degree weather which was a bit over a -1000 DA . Amazingly despite the cool temps it hooked extremely well with the N1 Pzero 35 front/ 41 rear hot pressure. With a good DA I would think high 130's on 93 octane for your stage 4 setup.
G

 

A couple weeks ago I did a 6.04 second 60-130mph in the rain 50 degrees F on my bolt on 997.2 with r888's on all 4 corners. Vbox verified and posted on the 997 forum. I also have video right after the run showing the rainy conditions.

The r888 is used as a track rain tire for many and from my testing works great at the track in both cold wet conditions and on a 105 degree summer day and everything in between. Sure a slick will give you a better time but nothing is as versatile as the r888.

 

Haha thank you! I wasn't sure if we were talking about the same R888's. I've been running them for years. Rain or shine. Up to 1900whp and seem to do just fine. And last time I checked they made them in 20's..?

 

Yes they fit as rear tires but unfortunately none of their 20 inch sizes work on our fronts as they're too wide

 

I'm speaking of the newer r888r as a road course tire , it's not my favorite because it heat cycled out very quickly (3rd day), and WAS horrible in the rain on track . It's a more aggressive tread design than the older r888 but that one was bad in standing water too . In my low tq Z4M after the 4th day the R888's are pretty useless on the street, in these winter temps . They fell off their peak grip by a huge margin on track as well. The sport cup 2 is a much faster tire on track in the wet , hell a pss is in the wet . When new on a dry track once up to temp the r888 had great grip. I just feel it's a poor compromise as a street tire , not that you can't get away with it , you can't put enough heat in it on the street especially when it's cold out . We are talking very different purposes though and I haven't used them on an awd car . That being said I'd love to see you launch any car in sparse standing water at 50 degrees with a moderately used r comp lol .

 

Since this is about tires, here is what I did with the new PZero N1 on stage 4 hardware but Stage 3 map on a county road. I had a modified Stage 4 map that didn't pan out but I am putting the stock stage 4 map back on now. I will report when I get those results.