hamlin

Doing a track day at Laguna Seca. Five 20 minute sessions. How much fuel can I expect to burn?

1989 944S2. Don't want to lug around a full tank if I only need a half tank.

bonus12

i think expect to get about 2-4 mpg less than www.fueleconomy.gov estimates.

play it safe and expect to get 5-6 less?

edit: Well, I take this back!

zeusrotty

Fill it up. Trust me.

hp18racer

I got about 10mpg in my n/a car in a chump car race, 120 gallons, 1200 miles. My turbo car gets about 5 or 6 mpg on the track. I'd guess you'd get 7 mpg.

Figure about 100 minutes track time is 100 miles, around 15 gallons.

Techno Duck

I agree, fill it up.

Last year i did a track day at NJMP with my 951, drove down the morning of and made it to the track with about 1/2 tank. Figured i could get by with it. 2nd session down, i had just over 1/4 tank left. Gas at the track was uber expensive, like $2 more a gallon. Checked for close gas stations off my 5 year old GPS with never updated maps. Every brand name gas station i went to in a 5 mile radius was out of business and the other ones only had 91 octane. Wasted 45 minutes driving before i gave up and just paid the $5 a gallon at the track .

hamlin

Thanks, I will filler her up......20 gals.

J Berk

Go to the track with a full tank in the AM....depending upon the day...how you drive and how your car is setup you will probably finish the day with a 1/4 tank...enough to get back to a gas station or your hotel.

One thing I'll say...I love the fact that I can beat on my car all day at a track event and not have to worry about bringing extra fuel...while most of the 911 guys need to run out at lunch time to fill up !

Oddjob

Also, its common that a 944 will start to suck air and the engine will miss if running below a 1/4 tank on the track. Clockwise tracks, mostly right turns, the fuel flows away from the pump pickup.

I got 7-8 mpg with my old 944S, and that was the fuel efficient track car. The turbos run around 5mpg, and those are running 100-110 race gas at $6/gal. Tank is topped off and I still need a couple 5 gallon jugs along, just for a one day event.

M758

Start with full tank. Or bring gas cans to fill up. When I ran my 944 Turbo street car I always started with a full tank and used most of it in 4-5 sessions. My dad once nearly ran of gas in his 944 Turbo on Friday track day with 5-6 30 minute sessions.

When I started running my 944 NA track car I never ran over a 1/2 tank, but I always carry gas cans to fill up. My 944 spec in race mode will go about 2 hours full bore racing on 17 gal tank. The S2 has a bigger tank, but more fuel burn per lap.

krystar

wouldn't be a bad idea to have a little 1gal emergency jug. track fuel is expensive even for regular!

pontifex4

Five 20 minute sessions? You'll be getting close to empty, even from a full tank.

Also, I'm jealous. You'll be driving MRLS while I'm shoveling snow.

M758

The cost of fuel jug and issue with carrying inside the are car are not worth the hassle. If you run out of gas on track there are ways to get fuel. It is not like nobody is around or anything. 1gallon is pretty much nothing.

Figure it costs $5 vs $3... $2 savings.. maybe... not worth it. - BTW. I never buy gas at the track. my 944 spec used regular pump gas and I just bring what I need. I get more off track if needed. The only I got gas at the track was at Miler in Utah. They had regular 91 for sale at a price that was within $0.05 a gallon from what was off track. Since we camped at the track it was no-brainer to get gas there.
That was the exception rather than the rule though.

Lemming

My track car with an NA 968 engine burned around 5 gallons every 25-30 minutes.

docwyte

I've almost run out of gas a few times at the track. Most of our local tracks don't have fuel at them, which led me to have to mooch off friends. This year I plan to get 2 5 gallon jerry cans and mount them to my tire trailer.

That way I can bring the fuel to the track and not have to carry it inside the car.