Fuel load ???

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Apr 1, 2012 | 01:57 PM

betelgeuse

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From: Hanover NH

Fuel load ???

I have a C5Z I'm going to be running in Time Attack. I was wondering what the least amount of gas I could run before running into fuel starvation issues.

Thanks in advance,
Greg

Apr 1, 2012 | 02:20 PM

Jason

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From: Miami bound

CI 4-5-6-7 Veteran

Figure 4mpg.

Apr 1, 2012 | 02:27 PM

betelgeuse

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From: Hanover NH

Quote:

Originally Posted by Jason

Figure 4mpg.

OK Thanks. But can it be run all the way to empty without starvation problems?

Greg

Apr 1, 2012 | 02:36 PM

froggy47

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From: Southern CA

The last c5z 2004 had a very new design fuel system, so it depends on what year you have.

From my autox and track experience I can pretty much run it to empty with zero fuel starvation.

2004 c5z

Low fuel warning will come on & maybe a dash light (I forget).

Apr 1, 2012 | 04:53 PM

betelgeuse

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From: Hanover NH

Mine is a 2003.
I haven't seen any fuel starvation threads so I suppose it can be run pretty low.

Greg

Apr 1, 2012 | 04:55 PM

drivinhard

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From: Braselton GA

real high G, I'd leave yourself ~2 gallons at the end. it will "run out" before it runs out

Apr 1, 2012 | 08:54 PM

Jason

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From: Miami bound

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I tell all my competitors to run it right on the ragged edge.

Apr 2, 2012 | 07:36 AM

topmover

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From: St Pete Beach Florida

It might be something with my 02c5z but I pick up a miss at 1/3rd of a tank under hard acceleration coming out of right hand turns.

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Apr 2, 2012 | 09:51 PM

betelgeuse

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From: Hanover NH

Quote:

Originally Posted by topmover

It might be something with my 02c5z but I pick up a miss at 1/3rd of a tank under hard acceleration coming out of right hand turns.

Anyone else experienced this?

Greg

Apr 2, 2012 | 11:01 PM

#10

yooper

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From: Marquette MI

Turn 3 at Road America, ran out twice. Make sure you have front tow hook or strap installed!

Apr 2, 2012 | 11:06 PM

#11

betelgeuse

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From: Hanover NH

Quote:

Originally Posted by yooper

Turn 3 at Road America, ran out twice. Make sure you have front tow hook or strap installed!

You ran out (empty tank)?
Or was it a fuel starvation issue?

Greg

Apr 2, 2012 | 11:09 PM

#12

68sixspeed

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Joined: Oct 2007

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From: Northwestern Connecticut

St. Jude Donor '10 thru '26

my 2000 use to cut out at 1/8 tank. (and the change from 1/4 to 1/8 happened quick, only a few laps it seemed.)

Apr 3, 2012 | 08:56 AM

#13

yooper

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From: Marquette MI

Quote:

Originally Posted by betelgeuse

You ran out (empty tank)?
Or was it a fuel starvation issue?

Greg

ran it dry!

Apr 3, 2012 | 09:27 AM

#14

Jason

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From: Miami bound

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Get much below a 1/4 on the gauge and you are risking wasting a run. It will stumble on corner exit.

Apr 3, 2012 | 11:29 AM

#15

travisnd

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Joined: May 2008

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From: Chesapeake VA

Yep... Every C5 I've tracked will miss coming out of high G right-handers when the fuel us below 1/4 tank. Hogs pen @ VIR does it the most.

Apr 3, 2012 | 11:41 AM

#16

beerkat

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Joined: Dec 2006

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I have run my fuel level down to where my reserve light comes on needle on the bottom mark and have not had an issue with fuel starvation.

2001ZO6

Apr 3, 2012 | 11:43 AM

#17

Bill Dearborn

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From: Charlotte, NC (formerly Endicott, NY)

Quote:

Originally Posted by betelgeuse

Anyone else experienced this?

Greg

Yes. My 03Z (old fuel system) would sputter going around the carousel turn (T5, which is a long sweeping high speed right) at the Glen if the fuel level was below a 1/4 of a tank. When that happened it was a very good idea to pit in when I got around to T11. At 4 to 6 mpg if I didn't pit in it was very close on fuel if I went another 5 miles to get to the pit entrance from the point the first sputter occurred plus it started sputtering on other turns as the fuel got lower.

Bill

Apr 3, 2012 | 01:00 PM

#18

betelgeuse

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From: Hanover NH

Quote:

Originally Posted by Bill Dearborn

Thanks Bill. I plan on running at the Z at the Glen later this year.

Would you happen to know what lap times a well driven stock C5Z on Hoosiers would be capable of running at WGI.

Thanks,
Greg