Racing fuel consumption?
12-17-2012, 04:46 PM
#17
Drifting
Our 924S Chump car runs about 12.5-14 gallons every 1.75hrs running E85.
Depends on the drivers and cautions.
Mike
Depends on the drivers and cautions.
Mike
12-17-2012, 09:31 PM
#20
My 930 gets somewhere around 3+mpg. Gets expensive when feeding it 112 octane leaded racing fuel.
Last edited by Bailey-86-MA; 12-17-2012 at 09:32 PM. Reason: clarifying the info.
12-17-2012, 11:21 PM
#22
12-18-2012, 09:12 AM
#23
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My 924 ITB car and DSR both seem to get 'round 7mpg. Gotta love them 4-cylinders... 
(of course the DSR still has a stock bike motor. And the 924 tends to get better mileage when my wife drives...)
(of course the DSR still has a stock bike motor. And the 924 tends to get better mileage when my wife drives...)
12-18-2012, 09:24 AM
#24
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Does anyone else use the formula I use lbs/per minute? I use 6lbs per gallon for calculation so 90 minute enduro requires 15 gallons.
Rich
Rich
12-20-2012, 12:37 AM
#25
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6.5 mpg
12-20-2012, 01:59 AM
#26
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Anyway, I figure it's about a buck-a-mile when I'm doing anything other than pony trotting.
12-20-2012, 03:23 PM
#27
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I know its track dependant, but what type of fuel economy does your race car get...I measure mine in gallons burned per hour. My current racer is around 10 gallons per hour....some of my older ones with less power were lower at around 7.5 gallons per hour.
The 1999 Spec Miata with its unrestricted 1.8L engine I helped crew at the 25 hour burns around 8 gallons per hour....
The 997 GT3 cups came in every hour for fuel and every other hour for tires + fuel...but knowing they have a 100 liter (26.4 gallons) cell that seems like really high fuel consumption?
A friend had a 993 twin turbo street car that was lightly modified...he said it got 1.5 mpg on track.....due to very rich AFR the turbo liked.....which is around 40 gallons per hour....OUCH....
The 1999 Spec Miata with its unrestricted 1.8L engine I helped crew at the 25 hour burns around 8 gallons per hour....
The 997 GT3 cups came in every hour for fuel and every other hour for tires + fuel...but knowing they have a 100 liter (26.4 gallons) cell that seems like really high fuel consumption?
A friend had a 993 twin turbo street car that was lightly modified...he said it got 1.5 mpg on track.....due to very rich AFR the turbo liked.....which is around 40 gallons per hour....OUCH....
its power vs time dependent. generally, at most common tracks, 4.5mpg for 350rwhp. you can almost take the % less or more with hp to get your MPG. not a rule, but gives you a ball park.
1.5mpg is not really possible, unless you have a leak. think about it. you run one of our 45 mile races and it takes 30 plus gallons to finish? not really possible
12-20-2012, 03:28 PM
#28
Rennlist Member
I know its track dependant, but what type of fuel economy does your race car get...I measure mine in gallons burned per hour. My current racer is around 10 gallons per hour....some of my older ones with less power were lower at around 7.5 gallons per hour.
The 1999 Spec Miata with its unrestricted 1.8L engine I helped crew at the 25 hour burns around 8 gallons per hour....
The 997 GT3 cups came in every hour for fuel and every other hour for tires + fuel...but knowing they have a 100 liter (26.4 gallons) cell that seems like really high fuel consumption?
A friend had a 993 twin turbo street car that was lightly modified...he said it got 1.5 mpg on track.....due to very rich AFR the turbo liked.....which is around 40 gallons per hour....OUCH....
The 1999 Spec Miata with its unrestricted 1.8L engine I helped crew at the 25 hour burns around 8 gallons per hour....
The 997 GT3 cups came in every hour for fuel and every other hour for tires + fuel...but knowing they have a 100 liter (26.4 gallons) cell that seems like really high fuel consumption?
A friend had a 993 twin turbo street car that was lightly modified...he said it got 1.5 mpg on track.....due to very rich AFR the turbo liked.....which is around 40 gallons per hour....OUCH....
I think anderson with his 500+ rwhp, ran close to 15 gallons to finish a 30min race.
12-23-2012, 10:14 AM
#29
Rennlist Member
I calibrated my fuel level on AIM dash to pounds of fuel (weighed fuel put in from empty tank to full and created custom table) . Works very well with nasa to coorilate fuel weight to final weight. ...I burn 1.1lbs/min at MidO (need a few more decimals?) :-)
12-23-2012, 05:21 PM
#30
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