What Kind of Fuel Economy Do You Get On Track?
We have been keeping track of our MINI’s fuel economy. Around town we get right around 25 mpg. Coincidentally, that’s exactly what the EPA says we should get.
During our Sebring track day—three 20-minute sessions—we used 7.571 gallons while covering 91…
I used to get 7-8mpg on track back when I had my Subaru on corn syrup.
Depends on the track, but we burn anywhere from 10 to 12 gallons an hour. Never figured it in MPG.
I burn 8 gal/hour in our Civic race car, which is very roughly 14mpg.
With my 5.0 mustang I get about 10 gal/hr. Two miles per lap, 30 laps, 6 mpg. With the 2.3 race car its about double that at 5 gallons per hour 12 mpg. Same track relatively same speed. Can you tell how slow I am at two miles per lap?
Oh man, a word problem!
I got into our new Fiat 124 Spider the other day and the fuel economy gauge said "14.2 mpg average". For a 40 mpg street car, we must have been working it a little hard 
No odometer on the real track car, but I wouldn't trade its speed for efficiency. If I was running enduros, then we'd pay attention.
Back when I was local autocrossing regularly I was getting about 9mpg from my 05 Mustang GT and about 8mpg from my wife's '05 Cooper S. That's just using the onboard meters reset just for the runs.
Interestingly enough for my one 20 minute session I reset the onboard computer version. IT showed 7.8mpg. The whole tank netted 27.x on that one. I think that was 12 or 13 laps at Putnam. I probably spent 80% of the time WOT with the Forte after I got comfortable.
Is it wierd to say that I don't keep track?
According to the trip computer, my 328is gets 6.0 MPG autocrossing. My Civic used to get close to 30.
The saturns we ran in chumpcar would go 1 hour 45 minutes on 12 gal. At beaverun that was about 76 laps. I don't have data for other tracks handy.
bigev007 wrote: According to the trip computer, my 328is gets 6.0 MPG autocrossing. My Civic used to get close to 30.
Auto-x'ing weekends (including 240 miles of round trip driving) net me 26-28. with AC and XM. and cruise.
In reply to Bobzilla:
I'm not sure what I get for a weekend. I just like to reset it in grid shortly before my first run.
Autocross and rallycross net me 20-24 mpg tanks in my Miata. Considering how little of that tank is spent at the limit, it's pretty worthless for y'all track guys!
bigev007 wrote: In reply to Bobzilla: I'm not sure what I get for a weekend. I just like to reset it in grid shortly before my first run.
I've done that too, but that return trip to grid usually brings me back up to 10.
I'm driving a 2013 Honda CR-V EX manual. Running autocross in HS, I took some numbers. At first, I had fairly bald factory low rolling resistance tires:
Later, I picked picked up some new Bridgestone RE760 based on suggestions here.
If you are actually putting power down, it seems to cut efficiency. My times were actually just below the middle of the pack, which I felt was a fair showing.
Still:
Our Chumptegras are good for about 15 imperial mpg over 24 hours.
I see about 6 mpg in my Miata on track. 340 rwhp and a turbo will do that. :)
20 minutes on the track burned through 1/4 tank in the 1.8 Miata. $ separate times so I think it's pretty accurate. Slightly interestingly a friend with a 1.6 Miata used about half as much fuel.
924s 6.6 - 6.8 MPG
MR2 7.2 - 7.4
FC RX7 6.3 - 6.6
280Z 6.5 - 6.6
Since we did endurance racing I kept very accurate records of this.
My zx2sr got around 10. It would vary with the track and temperature.
When I tracked a 4age powered FX16 years ago, it would get 15 mpg.
Dodge Viper Built motor, 3.6 mpg at the track, 4.7 on DE days.
About 6.5 when I'm actually pedalling the RX8 reasonably quickly, about 7 if I'm not. And I get between 20-25 in normal street driving.
The Z4 would get indicate 8-9 mpg for a tank of gas on track days, maybe even down to 7 at places like Road America.
What's really fun is to fill the tank for the drive home and watch the calculated miles to empty increase the whole trip home!
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