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Author: Subject: fuel tank baffles
Dale

posted on 16/5/06 at 12:30 PM Reply With Quote
fuel tank baffles

Since I have a different shaped ass end on the car- longer and lower. the book style tank takes up too much height ( and I veinly want a useable trunk (boot) that will hold at leat a 24 of beer or golf clubs overnight bag ect.
I have prebent pieces of stainless I am going to make the tank out of that come in 10.5 inch widths with a 90 deg bend on each side. So I have been looking at a 10.5x32x 4.5 or 5 inch in height. About the worst shape I could have to give me issues with fuel starvation. To top it off the rear slope of the car inclines so the back of the tank is an inch and a half higher than the front.

I need to figure out the best way of baffling the tank to keep fuel in the lines. I figure I will need a seperate swirl tank which I do have room for and figure I will put my high pressure pump either in it or under it. I have 2 low pressure pumps that could be used in the main tank if it would help keep the swirl tank full. I like the idea of redundancy as well.
Any ideas.
Dale





Thanks
Dale

my 14 and11 year old boys 22
and 19 now want to drive but have to be 25 before insurance will allow. Finally on the road

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NS Dev

posted on 16/5/06 at 01:17 PM Reply With Quote
Don't use a seperate swirl pot. Just weld a small pot/extra tank onto the lowest part of the tank, and before you weld it on, drill a 5/8" hole in the main tank, so the fuel can run into the pot but stays in it. No need for the low pressure pump then!

As for the main tank, buy some fuel tank foam and stuff it in after you have welded it up, by far the easiest way to do it.

Do a google for JAZ fuel cell foam around your area and you'll find a local supplier, or get somebody like Summit racing to post some to you.

I have tackled this problem a number of times this way and it has always been successful. I make the surge tank about 1.5 pints





Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion retro car restoration and tuning

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