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The C6 - two fuel tanks or one

Old 05-11-2010, 07:48 PM
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Davelt1coupe2010
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Default The C6 - two fuel tanks or one

Hey everyone, I am new to the corvette world but reading a lot about it...it is a great car. I recently purchased a book named C6 at the NCM over the weekend and if I remember correctly it mentioned something about two fuel tanks..each tank being connected to one another..I guess one on each side?
Old 05-11-2010, 07:50 PM
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Vette_DD
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Yes, one on each side. Each tank holds about 9 gallons of gas.
Old 05-11-2010, 08:48 PM
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Swiftrider08
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These are them.

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Old 05-11-2010, 08:50 PM
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tclhb
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Wow, I didn't know that!
Old 05-11-2010, 08:52 PM
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thenorthwoods
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Default two tanks what about the fuel pump?

Do we have two fuel pumps or just one in the 1st tank in the series?
Old 05-11-2010, 08:53 PM
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cmonkey713
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Two is the correct answer.
Old 05-11-2010, 08:54 PM
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A friend of mine asked me this question the other day and I told him I didn't know.

Does one fuel cell drain first or do they both empty equally?
Old 05-11-2010, 08:56 PM
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Originally Posted by tclhb
Wow, I didn't know that!
I learn something everyday on this Forum!
Old 05-11-2010, 09:18 PM
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LMB-C6
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Originally Posted by Vasta
A friend of mine asked me this question the other day and I told him I didn't know.

Does one fuel cell drain first or do they both empty equally?
I believe the passengers side drains first, then the drivers side. There are 2 'sending units' for the fuel level. Oh, and when fueling up the driver's side fills 1st then the other tank. Whatever happened to the good old days when there was 1 tank and just AM and FM
Old 05-11-2010, 09:21 PM
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Route 66 Tom
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Any options to get bigger tanks in there like the old C2's had?
Old 05-11-2010, 09:22 PM
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cranky
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two pumps. electric one on driver's side, jet pump on pass. side driven by fuel pressure. transfers fuel over to the driver's side. two tanks are used for balance of the car for better handling overall.
Old 05-11-2010, 09:27 PM
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dbunn
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Originally Posted by cranky
two pumps. electric one on driver's side, jet pump on pass. side driven by fuel pressure. transfers fuel over to the driver's side. two tanks are used for balance of the car for better handling overall.
Kinda like a Huey fuel cell.
Old 05-11-2010, 09:27 PM
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Originally Posted by LMB-C6
I believe the passengers side drains first, then the drivers side. There are 2 'sending units' for the fuel level. Oh, and when fueling up the driver's side fills 1st then the other tank. Whatever happened to the good old days when there was 1 tank and just AM and FM
If by "the good old days" you're talking about the cargo compartment the size of the C4's, and no trunk in the vert, you can have them .

FWIW, this dual tank design started w/ the C5. The reason for it is to provide the large cargo area in the back by fitting multiple smaller tanks into available space rather than taking up cargo space w/ one big tank. Good call by Gm on this one.
Old 05-11-2010, 09:30 PM
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Originally Posted by Route 66 Tom
Any options to get bigger tanks in there like the old C2's had?
Each of those form-fitting jugs holds about 9 gallons. Their volume pretty much consumes every bit of available space behind the seats and forward of the rear axles. Want more? You'd have to build a custom crash-proof bladder-lined tank under the hatch glass, bore a hole through the floor, and connect a line to one of the jugs.
Old 05-11-2010, 09:30 PM
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Originally Posted by tclhb
Wow, I didn't know that!
Yes, the book I am reading is filled with all type of "interesting" info..but it did not give a picture...thanks so much for the picture.

The book is titled Corvette C6 and by Phil Berg. Motorbooks.com or 1-800-826-6600. I purchased my copy at the NCM on Saturday.
Old 05-11-2010, 09:31 PM
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I've got a great 8 page GM Bulletin on this, complete with pictures, if there was only a way to post a pdf on this forum. Can't even load it into photobucket.
Old 05-11-2010, 09:35 PM
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Originally Posted by Vettin08
If by "the good old days" you're talking about the cargo compartment the size of the C4's, and no trunk in the vert, you can have them .

FWIW, this dual tank design started w/ the C5. The reason for it is to provide the large cargo area in the back by fitting multiple smaller tanks into available space rather than taking up cargo space w/ one big tank. Good call by Gm on this one.
I hear changing the fuel pump is a major chore.

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To The C6 - two fuel tanks or one

Old 05-11-2010, 09:36 PM
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3GenVettes
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The quickness, the quality, and the informativeness of the response here is what I really like about CF. Sure beats some of the negativeness that sometimes goes around.
Old 05-11-2010, 09:38 PM
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Jimbeaux
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Expensive though if you need to replace fuel level sensors
Old 05-11-2010, 09:55 PM
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cool. I've never even came close to filling up 18 gallons though. I think the best was around 14

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