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1/4 Tank Surge While Turning

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tenn-gsx

15+ Year Contributor
1,269
25
Apr 25, 2006
Fort Worth, Texas
Ok so I looked and dont see the answer anywhere. When Im arround a 1/4 tank or less I have this issue. If I go wot in a straight line im fine, However if i nail it in a corner suddenly the car starts jerking like im hitting a rev limiter or not getting fuel. I think It is due to the fuel sloshing, but why doesnt it do this when Im going in a straight line?
 
It should mainly do it on right hand turns, it's because the pump is mounted on one side of teh tank and is VERY POORLY baffled. YOu can either weld baffles in, build a surge tank, or always drive with a full tank ( sucks for auto-x'ing though) or you can order fuel cell foam from fuel safe and stuff your tank full of it. It does help some what on stock tanks.
 
Actually I notice it promairally on left hand turns. But i figured it has something to do with fuel sloshing arround.


My car is a 97 GS-T and the pump is on the right side of the tank, so when i turn right, all the fuel sloshes left and it does it to me. But i can turn left wide open till almost 1/8 of a tank. I always just said it was because when they started assembling them here in the US they hired too many NASCAR fans and they built some LTO technology into it LOL.

Welding baffles in helps a TON, and fuel safe use to have stuff on their webpage on building baffles and even one setup with some sort of one way check balls in the corners designed to trap fuel in there. But, I was just browsing over there and can't find it.
 
The rear driveshaft causes the AWD tank to be a saddle, and in effect two tanks. The driver's side is pumped to the passenger side where the fuel pump is by a jet pump, run by the return fuel flow from the engine. I'd guess some crap has gotten into your crossover line, or the pump itself.
A jet pump is just a flow past an orifice, dragging up the intake with it.
 
The rear driveshaft causes the AWD tank to be a saddle, and in effect two tanks. The driver's side is pumped to the passenger side where the fuel pump is by a jet pump, run by the return fuel flow from the engine. I'd guess some crap has gotten into your crossover line, or the pump itself.
A jet pump is just a flow past an orifice, dragging up the intake with it.
Read: siphon

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tenn-gsx - I suspect Defiant is on the right track. Something is stopping the fuel from siphoning over to the pump-side of the tank.
 

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