anyone using "anti slosh" foam? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 12-14-2011, 01:51 AM   #21
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The issue of his fuel system not having a surge tank, duh.
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Old 12-14-2011, 10:07 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.
Interesting. Especially that it would somehow get through several filters. I wonder what made it precipitate out.
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Old 12-14-2011, 11:00 AM   #23
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Why? What issue did you solve by switching to a surge tank?
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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Old 12-14-2011, 02:26 PM   #24
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Does everyone just run a standard tank then? Noone found the need or seen any available gain from fitting a cell?
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Old 12-14-2011, 07:13 PM   #25
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Quote:
Originally Posted by GT42R
Quote:
Originally Posted by Savington View Post
Why? What issue did you solve by switching to a surge tank?
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.
Your issue was the dual walbros. Miatas are very picky about the pickup location and fuel sock design.

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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Old 12-15-2011, 06:02 PM   #26
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Your issue was the dual walbros. Miatas are very picky about the pickup location and fuel sock design.

Yea that's very possibly the case, but I do like the badass-ness of my current fuel system and it supports 600-800hp+ as it sits.
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Old 06-07-2012, 10:10 PM   #27
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thank you Sav have been looking for this for a while
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