anyone using "anti slosh" foam?
12-14-2011, 09:07 AM
#22
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Closer to E10 in the case I was involved in. We were running in Grand-Am Cup (now Continental Sports Car Challenge) and the spec fuel was pretty much the 100 octane pump gas that Sunoco offers. When the issue came up, Sunoco and Grand-Am eventually switched the spec fuel to 260GTX, which I was told was the same blend as the 100 octane stuff, but without ethanol. The resulting octane was 98. After the switch, we never had an issue again.
We really had a devil of a time figuring out what was happening at first though. Clean fuel filters every time, even down to some pretty low micron stuff, with multiple filters in series, and yet the screens in the injectors would all get gummed up where the dissolved plastic from the foam would come out of solution.
We really had a devil of a time figuring out what was happening at first though. Clean fuel filters every time, even down to some pretty low micron stuff, with multiple filters in series, and yet the screens in the injectors would all get gummed up where the dissolved plastic from the foam would come out of solution.
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12-14-2011, 10:00 AM
#23
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At the time I was drag racing the miata and experiencing starvation below a certain fuel level. Dual in-tank walbros. At some point I upgraded my fuel system with an external aeromotive a1000 pump, so I decided to bulletproof things by going with a surge tank to keep the a1000 fed and happy.
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12-14-2011, 06:13 PM
#25
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Originally Posted by GT42R
At the time I was drag racing the miata and experiencing starvation below a certain fuel level. Dual in-tank walbros. At some point I upgraded my fuel system with an external aeromotive a1000 pump, so I decided to bulletproof things by going with a surge tank to keep the a1000 fed and happy.
In my experience, the only people who run foam or surge tanks are those who have tried to alter the in-tank pump setup and inadvertently moved the fuel sock, either by using an aftermarket sock or hanging the pump differently. If you use a pump like a dw300 with a factory sock you can support 600+whp on gasoline without inducing fuel starve.
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