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Fuel Mileage isn't really a concern....
Posted by Chad [Email] (more from Chad) on Wed, 16 Jan 2008 07:53:22
In Reply to: Re: Siemens black Deka injectors?, AdamB
[Profile/Gallery]
, Wed, 16 Jan 2008 05:54:54
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The bottom line with injector sizing is that when you get too big it can be difficult to lower duty cycles enough for the car idle properly.
SQR uses Dekas for stage 5 and has no problem providing enough fuel for boost as well as improving general fuel mileage (very important in Europe, where gas costs 4x as much)...though mileage suffers when you are trying to kick the radiator with your right foot.
Spray pattern is actually just as important as flow rate, and a larger injector with a better spray pattern can actually be more efficient than a smaller injector that does not spray as evenly. Many of the injectors SQR rejects are based on poor spray pattern.
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