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Tomster
Beware of idiots
Cup 2s work fine. Pressures are your concern. Too low and the tire runs the risk of delaminating. Too high (below structural) and you slide all over the place in the infield.
Get a set of new fresh tires and make sure the guy aligning your car knows what he is doing.
When are you going?
Tomster
Beware of idiots
If you hit it hard, a set of tires is good for 2 days. I usually have another set for 3 days. I should look into those dates. It would suck starting over in a new club with silly point bys and such
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gfcobra04
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Just bring that video of you doing what 186 think you’ll be OK.
I am going to buy another set of cup 2. I have a set that I used at three days at Barber. However, I don’t think I’ll be pushing near as hard as you do.
How many laps do you get on a tank of fuel?
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Tomster
Beware of idiots
I just can't seem to finish a session running flat out. Some of my videos you can see I hit fuel starvation. It's embarrassing.
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How long per session?
What does your dash MPG show?
Tomster
Beware of idiots
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I got 5.5mpg last weekend with my Gen3 A10 at a track with a single straightaway, my lowest ever.
I think my driving is getting better.
I guess my joke that a '500 uses one tank per session is not.
Tomster
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More questions for the @Tomster:
Care to suggest some hard numbers?
What indicates to you that a Cup2 is done?
I'm the last one to tell you how to drive, but if you find some sections that short-shifting by 1000rpm that won't hurt lap times too bad, then that will go a long way on fuel mileage. I'm sure you know this. But seriously, check your MPG at the end of your sessions!
Tomster
Beware of idiots
It is dependent on ambient conditions. The right rear is the most important because it carries the highest load while on the outside banked course. The next most important is the right front for similar reasons. Then you have the left side of the vehicle which would fall into the normal category. I will typically start with cold (and I mean cold ambient temps- no time in sun, etc) 30 psi on the right rear, 29 on the right front, and 28 on the left side. Keep in mind those are based on ambient temps arount late fall. Summer months would be slightly different.
Tire performance and condition. Each heat cycle deteriorates the grip of the tire. Generally speaking, the best performance of the tire is the first few laps and deteriorates the more they are used. As they heat cycle, the compound melts and smears across the tread and deteriorates the grip. I've never paid tire rack to pre-heat cycle my tires, but they say it helps the overall performance and wear of the tire.
Generally speaking, for me, my tires are done after two days. Keep in mind that you are trusting your life and machine based on your tires. Tires and pressures (and alignment) are one of the most important things at Daytona.
The problem is the supercharger. Pumping out 800 hp with foot on the floor makes for a thirsty engine. I'm hoping that the GTD engineers consider this.
If someone wants to lollygag around the track, sure, you can absolutely finish a session at Daytona. Another technique is to do a few extra warmup laps combined with extra cool down laps. Short shifting won't matter much. Again, driving with the foot on the floor at every opportunity still leaves the session way short. Again, 16 mins to intermittent fuel starvation is about where it's at.
Check MPG after a session? What's that gonna do? I don't care to tame my driving down based on the cars shortcomings. I'd rather enjoy the time I have driving the way I want as opposed to going out and doing parade laps.
With that said, the car would probably fare better if running in an environment with slower drivers and point by requirements. It would induce slower driving and pauses in WOT which would effectively increase the endurance. I like group 1, I like unrestricted driving. Going back to the general population would be boring as hell.
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It would probably require some custom fabrication, but is it possible to increase fuel tanks in size to accommodate even 18 gallons vs the 16 (which is putrid by the way) these cars have? I know space is generally very limited in the design of these cars so I’m not even sure if larger fuel tanks are an option. Even just an extra 2 gallons should get you closer, if not all the way, to a full session I would think.
Just thinking out loud more than anything.
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gfcobra04
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I very rarely been able to finish the session. I have been Experimenting with lifting near the end of the street to see if that helped my fuel economy. I think it has helped a little bit maybe one or 2 miles but still four or five even 6 miles to the gallon you use up all your fuel. My computer said that I have 0 miles left lots of times.
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