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Surge tank suggestions


Kitcat

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So, I had an idea of simplifying my fuel delivery system by feeding the surge tank passively through a check valve. In my current system, the surge tank is sitting just to the left of the main tank in the back of the vehicle. Currently, it is fed by a low pressure pump and I'm not sure why I'm getting starvation.

 

The simplified idea uses just a check valve and a T in the hose routing. I'd like to get some reactions to see whether this would work well:

 

While on a level surface without cornering, the surge tank fuel level is the same as the main tank:

http://www.usa7s.net/vb/attachment.php?attachmentid=11279&stc=1

 

The surge tank is filled above the level of the main tank by the cornering forces during a right turn:

http://www.usa7s.net/vb/attachment.php?attachmentid=11280&stc=1

 

During a leftt turn, the check valve prevents the surge tank from draining into the main tank:

 

http://www.usa7s.net/vb/attachment.php?attachmentid=11281&stc=1

Fuel System Redesign Flat.jpg

Fuel System Redesign Left.jpg

Fuel System Redesign Right.jpg

Edited by teamking
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If the line coming into the surge tank was on the bottom, and the surge tank was tapered to the line, the left/right part wouldn't matter. The other thought that comes to my mind is the check valve has to be reliable with very small pressure changes. Great idea; why have another pump if it is not needed?

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  • 2 weeks later...
Look at the new product - holley hydramat

Wayne

Other than the price, this looks pretty good - especially the ease of implementing it. Alternatively, I will add that I went through the work of designing, fabricating and installing an in-tank, sump system and have NEVER had any fuel starvation or plumbing or space problems, including one episode where I limped home barely running due to low fuel (bad fuel gauge) and found I had perhaps a cup-full of fuel in the tank. If anyone's interested add a post to this thread and I'll post a link to pictures - or maybe add it to my thread on this list.

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Parts alone for my surge system exceeded the Hydramat. But I was a bit nervous abt Hydramat's statement that degradation can occur and that it shd be pulled and checked every 5 years or so for deterioration.

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Thx Tom, parts have been purchased and installed. Installation required removal of cage, drivers seat and rear aluminum bulkhead, just to get access, so it was not a simple project. Starvation problem is solved at least.

Mike

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