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Re: Need more fuel with water injection??
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Posted by Taylor (more from Taylor) on Sat, 30 Aug 2003 15:47:14 Share Post by Email
In Reply to: Need more fuel with water injection??, Swedish Sled, Sat, 30 Aug 2003 14:29:53
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Hey Dylan,

You won't need to upgrade the fuel supply when using water injection. The fuel supply can still be upgraded if you so desire, depending on what performance levels you're seeking. But water injection isn't like nitrous where it leans out when being injected, instead it just gives the cooling effect of nitrous, and if you use a 50/50 alcohol to water mixture, it will act as an octane booster. Occasionally I add a 16oz bottle of rubbing alcohol (the higher concentrate stuff) to the mix to give more of an octane boost. It's probably unnecessary, because the real gain with water injection is the cooling effect. So it is not necessary to incrase the fuel supply when using it. Nitrous combusts much quicker than gasoline, so it starts burning quicker than the fuel system can keep up.

So if you want to upgrade to 30#'s, that's cool, but not a must. FWIW, I am using an RRFPR, 30# injectors, and the water injection system, and I personally believe that this is the best setup for performance while using the stock ECU.

While others like Brad know alot more about water injection, I am just regurgitating what I hear from them and what I read elsewhere.

Good luck!
Email me if you have any questions about my setup,
Taylor
90 SPG

RIP Kyle & Tim

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