C4 Fuel cell
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
When Jims car is leaving/accelerating I imagine the fuel is pushed up against the rear of the tank and held there, which could starve the pump unless he runs plenty of fuel.
This solves his issue/saves weight.
Every bit counts! Nice, Jim
Love to see a vid of your car in action sometime.
This solves his issue/saves weight.
Every bit counts! Nice, Jim
Love to see a vid of your car in action sometime.
Le Mans Master
Joined: Mar 2001
Posts: 7,999
Likes: 14
From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
Looks good Jim, I'm envious!
Question on the fuel starvation also. I don't really get why that happens. I installed a new fuel pump the other day. The pump sits in the middle of the tank and at the bottom. from what i saw. Maybe the way the OEM armature and stuff is angled it's more towards the front of the tank where i couldn't see once it was all in there.
There's also like a plastic tray in there where the pump and sock goes to to pick up the fuel. Wish i took a pic or two.
Question on the fuel starvation also. I don't really get why that happens. I installed a new fuel pump the other day. The pump sits in the middle of the tank and at the bottom. from what i saw. Maybe the way the OEM armature and stuff is angled it's more towards the front of the tank where i couldn't see once it was all in there.
There's also like a plastic tray in there where the pump and sock goes to to pick up the fuel. Wish i took a pic or two.
Melting Slicks
Joined: Nov 2008
Posts: 2,765
Likes: 5
No, a friend gave it to me and I had it modded to fit the car. I was really surprised how the size was about perfect for the car. I would say this is a solid 60lb+ weight reduction between the tank being lighter and carrying less fuel.
It has about 10 gallons of fuel capacity.
It has about 10 gallons of fuel capacity.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
have seen 'fuel cell foam block in zip-top baggie' herd stuffed inside a cell (some baggies dissolve in gas, some fail other ways, testing prior to use is a good)...another 'stuffer' inserted a 'tire inner tube' and then partially inflated the inner tube...there are other ways.
recently removed my oem c4 tank to do rear bumper mod...used stock pump to decant fuel until pump sang soprano/flow stopped, then removed tank to outdoor location and inverted/sloshed tank to remove residual fuel and/or contaminants to 1 gal container...exercised care to prevent spillage...'invert/slosh' done until nearly all fuel/junk was expelled and shop sponge was then utilized to remove all traces remaining,all liquid captured, only produced (to my amazement) approx ONE QUART of liquid.
btw, all the 'drainings' have since been used up by my lawnmower to satisfy question of whether the fuel would work, it ALL did, briggs never missed a beat.
Last edited by redrose; Aug 9, 2011 at 10:15 PM.
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Ron, I have been bugging Jim for years for a video of the 450. I saw an older video, but the video quality wasnt there so it was hard to see.
Jim, I am thinking we are going to see some personal best next time out at the 1320. I hope the DA comes down for you, and you are able to go out in some decent air.
Goodjob on the fuel cell!!
Jim, I am thinking we are going to see some personal best next time out at the 1320. I hope the DA comes down for you, and you are able to go out in some decent air.
Goodjob on the fuel cell!!
Race Director
Joined: Apr 2003
Posts: 17,699
Likes: 1,667
From: moraga ca
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
Looks good Willie. I thought about sumping mine, but thought I would just try a drain hole in the bottom at the back of the tank. So far I tried it a little on the street with about 2 1/2 gallons and it was fine, no fuel starvation. I will have to see how it works out at the track.
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