Extended Range Fuel Tank Counter Argument
09-16-2018, 11:57 AM
#46
Rennlist Member
$150 is 0.1% of a $150K car, so it really isn't much. But, why pay $150 for an extended tank, only to fill it up like a standard tank? It just seems silly. To me, anyway. OTOH, we pay for so many of what to me are silly things on our GT3, what's one more? I just paid over $7k for a second set of OEM wheels and tires. Now that's not just silly, that's absolutely bonkers!
09-16-2018, 12:09 PM
#47
$150 is 0.1% of a $150K car, so it really isn't much. But, why pay $150 for an extended tank, only to fill it up like a standard tank? It just seems silly. To me, anyway. OTOH, we pay for so many of what to me are silly things on our GT3, what's one more? I just paid over $7k for a second set of OEM wheels and tires. Now that's not just silly, that's absolutely bonkers!
09-16-2018, 12:11 PM
#48
$150 is 0.1% of a $150K car, so it really isn't much. But, why pay $150 for an extended tank, only to fill it up like a standard tank? It just seems silly. To me, anyway. OTOH, we pay for so many of what to me are silly things on our GT3, what's one more? I just paid over $7k for a second set of OEM wheels and tires. Now that's not just silly, that's absolutely bonkers!
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Craigy (02-01-2022)
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Craigy (02-01-2022)
09-16-2018, 09:09 PM
#51
Rennlist Member
09-17-2018, 01:05 AM
#53
Rennlist Member
09-17-2018, 01:44 AM
#54
Drifting
Alright, I'm gonna do this again.
Standard tank =16.9 gallons
Extended tank = 23.7
Difference in gal = 6.8 gal
Difference in weight with full gas = 6.8 gal X 6.3 lbs/gal = 42.4 lbs
40 minutes flat out at Watkins Glen, open track advanced high HP run group on lighter standard tank = 12 gallons consumed. Approximately 3.33 minutes per gallon, maybe more, maybe less depending on track, driving style, traffic, etc.
Any weekend warrior who drives more than 40 minutes continuously on track is asking for trouble. Unless you are like OrthoJoe or Trackar
I usually do a 30-35 minute run, fill car 10 gallons from two 5 gallon jugs I carry on my trailer, then run another 30-35 minutes. Then, time for lunch! Jugs fit nicely in the frunk. Go outside track, fill stomach with greasy food, fill car and jugs with gas, and good to go again!
To simplify, 4 runs of 30 minutes each or a total of 2 hours or 120 minutes, you would need about 36 gallons of gas. How big is that extended tank again?
So, extend tank mandatory for track? Sorry, IME, no. You can get it, but you'll still have to gas up during the day. Unless you drive real slow and economically, while hauling an extra 42 lbs to start
Standard tank =16.9 gallons
Extended tank = 23.7
Difference in gal = 6.8 gal
Difference in weight with full gas = 6.8 gal X 6.3 lbs/gal = 42.4 lbs
40 minutes flat out at Watkins Glen, open track advanced high HP run group on lighter standard tank = 12 gallons consumed. Approximately 3.33 minutes per gallon, maybe more, maybe less depending on track, driving style, traffic, etc.
Any weekend warrior who drives more than 40 minutes continuously on track is asking for trouble. Unless you are like OrthoJoe or Trackar
I usually do a 30-35 minute run, fill car 10 gallons from two 5 gallon jugs I carry on my trailer, then run another 30-35 minutes. Then, time for lunch! Jugs fit nicely in the frunk. Go outside track, fill stomach with greasy food, fill car and jugs with gas, and good to go again!
To simplify, 4 runs of 30 minutes each or a total of 2 hours or 120 minutes, you would need about 36 gallons of gas. How big is that extended tank again?
So, extend tank mandatory for track? Sorry, IME, no. You can get it, but you'll still have to gas up during the day. Unless you drive real slow and economically, while hauling an extra 42 lbs to start
09-17-2018, 11:17 AM
#55
Rennlist Member
I was at Thunderhill yesterday (3-mile configuration). Did four 20-minute sessions. I have an extended-range tank. At the end of the day my gas gauge read 3/4 tank. I was surprised at how little gas I used. When I filled up, pump said I filled up 12 gallons, so I actually used half a tank. That includes the 8-mile drive to/from the track (16 additional miles). And I wasn't driving like a granny.
Joe and Larry, I would love to drive the 'Ring or the Spa. Almost made it this year, will try again next year. Won't have my GT3, though. Likely will rent one of those track cars, and most likely will be driving like a granny, be a moving pylon for every one else! LOL
09-17-2018, 11:46 AM
#56
Drifting
I wasn't arguing one way or the other. Personally, I like having the larger tank though, and I'm glad I spec'd it.
09-17-2018, 11:47 AM
#57
Rennlist Member
I don't understand the fuel per hour or MPG use?
Is the new 4.0 so much more fuel efficient or are you driving slow tracks?
I can not run one hour on a 23Gal tank, it would be about 90-100 miles at Sebring.
Fast track and maybe more WOT then most tracks and there is the limp mode with a 1/4 tank left, 25Miles DTE would in theory be another 10 laps / 20 minutes till really dry, if it didn't do the limp mode thing.
But still I fill up 19/20 Gallons after two 25/30 minute session of about 80/90 miles.
I don't think there is any track where I can do 3 25 minute sessions....
Is the new 4.0 so much more fuel efficient or are you driving slow tracks?
I can not run one hour on a 23Gal tank, it would be about 90-100 miles at Sebring.
Fast track and maybe more WOT then most tracks and there is the limp mode with a 1/4 tank left, 25Miles DTE would in theory be another 10 laps / 20 minutes till really dry, if it didn't do the limp mode thing.
But still I fill up 19/20 Gallons after two 25/30 minute session of about 80/90 miles.
I don't think there is any track where I can do 3 25 minute sessions....
09-17-2018, 11:49 AM
#58
Drifting
I don't understand the fuel per hour or MPG use?
Is the new 4.0 so much more fuel efficient or are you driving slow tracks?
I can not run one hour on a 23Gal tank, it would be about 90-100 miles at Sebring.
Fast track and maybe more WOT then most tracks and there is the limp mode with a 1/4 tank left, 25Miles DTE would in theory be another 10 laps / 20 minutes till really dry, if it didn't do the limp mode thing.
But still I fill up 19/20 Gallons after two 25/30 minute session of about 80/90 miles.
I don't think there is any track where I can do 3 25 minute sessions....
Is the new 4.0 so much more fuel efficient or are you driving slow tracks?
I can not run one hour on a 23Gal tank, it would be about 90-100 miles at Sebring.
Fast track and maybe more WOT then most tracks and there is the limp mode with a 1/4 tank left, 25Miles DTE would in theory be another 10 laps / 20 minutes till really dry, if it didn't do the limp mode thing.
But still I fill up 19/20 Gallons after two 25/30 minute session of about 80/90 miles.
I don't think there is any track where I can do 3 25 minute sessions....
09-17-2018, 12:23 PM
#59
Nordschleife Master
Originally Posted by TRAKCAR
I don't understand the fuel per hour or MPG use?
Is the new 4.0 so much more fuel efficient or are you driving slow tracks?
I can not run one hour on a 23Gal tank, it would be about 90-100 miles at Sebring.
Fast track and maybe more WOT then most tracks and there is the limp mode with a 1/4 tank left, 25Miles DTE would in theory be another 10 laps / 20 minutes till really dry, if it didn't do the limp mode thing.
But still I fill up 19/20 Gallons after two 25/30 minute session of about 80/90 miles.
I don't think there is any track where I can do 3 25 minute sessions....
Is the new 4.0 so much more fuel efficient or are you driving slow tracks?
I can not run one hour on a 23Gal tank, it would be about 90-100 miles at Sebring.
Fast track and maybe more WOT then most tracks and there is the limp mode with a 1/4 tank left, 25Miles DTE would in theory be another 10 laps / 20 minutes till really dry, if it didn't do the limp mode thing.
But still I fill up 19/20 Gallons after two 25/30 minute session of about 80/90 miles.
I don't think there is any track where I can do 3 25 minute sessions....
Originally Posted by FourT6and2
I don't understand how you run out of gas so quickly. This was my first track day with the GT3 and I was expecting to have to fill up at some point. But I went the entire day and still had 12 gallons left it seems. I dunno...
FourT6and2, what lap time were you getting on what config at Thill? If above 2:00, that would probably explain the discrepancy.
09-17-2018, 12:27 PM
#60
Nordschleife Master
Originally Posted by 911therapy
well Joe, what did you think generally? Would you trade any of your cali tracks for the ring? and want to drive it every day, or every month?