Consolidated 991RS thread
#1786
Rennlist Member
yes and no. true you can use scrub slicks or not use slicks at all. but then the cup car isn't a cup car. and u and i both know once you tried stickers, there is no going back until you go broke. much like cocaine users. i can guarantee you that they know it's BAD, DEADLY, no possible good can happen from using it. but you dont see them stop!!!!! slick is the same. tat's 2-2500 a weekend if you are conservative and run just 1 set. the fuel at $10gal adds up fast too. last time my bud did a 4 day gig and only ran 75% of the allotted time $600 in fuel alone. and with 7 cups, no matter how good you are, every so often, you will screw up and flat spot the tires.... that wont be cheap. then amortize the engine and trans rebuild. it cannot be just 5000/weekend. no way. if it's that cheap, i would still have my cup car around. i wish you are right at $5000/weekend. but that's not my experience, sadly
I will admit that if I didn't win tires, I'd still buy brand new slicks for every weekend. Are they addicting, probably so. If you can run a track car without succumbing to the slicks, your wallet will be better off.
On a positive note, ABS cures the flat spot issue. I bought a used unit for $5K.
I didn't include amortization of the engine (and tranny) because, for the comparison, you also need to consider depreciation on the RS. I think a tracked RS with miles on it is going to depreciate a fair amount as well. Which one will depreciate more? I'm not sure. But, to your point, the Cup engine and tranny are expensive to fix.
I still don't think the cost is going to be appreciably different once you add in the safety aspect and the relatively lower cost of a used Cup as a track car. But, maybe I just have more yahoos to deal with out here on the West Coast.
#1787
Three Wheelin'
http://www.worldcarfans.com/11409168...urgring-in-720
Some updates. This article claims a Paris reveal.
Some updates. This article claims a Paris reveal.
#1788
7:25 for 991 GT3.
#1789
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#1790
#1791
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If it's 5 seconds difference at the 'ring, I translate that to about 1 second at a more typical track with a lap time around 1:30. Yeah, if that's really the number, not worth paying a lot of extra cost. You can drop the lap time more than that just by going from the MPSC2 to a semi-slick tire.
#1792
Three Wheelin'
If it's 5 seconds difference at the 'ring, I translate that to about 1 second at a more typical track with a lap time around 1:30. Yeah, if that's really the number, not worth paying a lot of extra cost. You can drop the lap time more than that just by going from the MPSC2 to a semi-slick tire.
Personally I like the looks of the 991 GT3 better than all the leaked 991 GT3 RS pics, 5 seconds on the ring is in the noise, RS needs to be in the mid teens to differentiate. Perhaps this is part of the reason we keep hearing GT3 production will not run concurrently with GT3RS production.
Ryan
#1793
Rennlist Member
#1794
Addict
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Rennlist Member
If it is 4.0, the torque will be increased by definition. With normally aspirated motors of similar design, the torque is almost perfectly proportional to displacement. So the extra 5.3% displacement will increase torque by an amount very close to that.
#1795
If I get an RS allocation (I should buy a lottery ticket that day) I will get it just for the heck of it. My turbo or upcoming GT3 is probably a better car for the street for me.
The track is fun, but in someone else's car. At least for me.
The track is fun, but in someone else's car. At least for me.
#1796
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#1797
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Hmmmm. Wondering how many times we have to have the RS vs Cup running costs discussion before it sinks in.
Net, net, ex the trans there is no difference when run like for like. Same motor (ex the vario cam, which is just an additional thing that can fail on RS), same suspension ex stiffer spring/shock combo. Run your RS on the track like a Cup - high %throttle with slicks - and watch your motor and suspension time out just like a Cup. The only a reason a Cup motor is more expensive to rebuild is because most want to keep the spec classification and hence are hostage to PMNA rebuild premium.
Those that have tried know, those that haven't don't.
Net, net, ex the trans there is no difference when run like for like. Same motor (ex the vario cam, which is just an additional thing that can fail on RS), same suspension ex stiffer spring/shock combo. Run your RS on the track like a Cup - high %throttle with slicks - and watch your motor and suspension time out just like a Cup. The only a reason a Cup motor is more expensive to rebuild is because most want to keep the spec classification and hence are hostage to PMNA rebuild premium.
Those that have tried know, those that haven't don't.
Last edited by Nizer; 09-16-2014 at 09:59 PM.
#1798
Rennlist Member
Has anyone been running a 6 or 7 Cup on softer springs, less aggressive alignment, and Nittos or Hoosiers?
May be worth exchanging the street driveability of my 6gt3 for the increased safety and performance of a track-only but softened Cup + add a Boxster S/GTS for top-less back-road fun.
May be worth exchanging the street driveability of my 6gt3 for the increased safety and performance of a track-only but softened Cup + add a Boxster S/GTS for top-less back-road fun.
#1799
In the end, I'm a fan of any engineering feat that makes a car faster. In the case of the RS, I'm appreciative of the drop in time as a result of engineering instead of just adding a bunch of power (a la +200hp in the Z06).
#1800
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Interesting. If true, the tires would account a significant chunk of the surprise factor in the 991 GT3's brisk performance. OTOH, I tried the Dunlop Sport Maxx Race, which are supposed to be as fast as the MSPC2, on a couple of cars, and found them to be not quite as fast as the NT01, which isn't as fast as the R6. So I'm not sure what to make of this ...