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Dry - Pre vs Post Maf, bottle pressure

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Old Jan 14, 2010 | 08:56 PM
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Default Dry - Pre vs Post Maf, bottle pressure

I've played with the bottle before spraying wet - I'm thinking about going dry as I have just upgraded my fuel injectors and pump.

I was originally thinking dry pre maf because I thought I would not have to worry much about how full a bottle was, or what the pressure was at, that maf would handle my fueling needs for me. I thought I had it all figured out then started reading about post maf dry shots.

I assume because you are adding fuel via some controller instead of the maf, you need to be more consistent with your bottle pressure to avoid running lean/rich?

Is a pre maf dry still a viable option?
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Old Jan 15, 2010 | 05:07 AM
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Your right in theory on the MAF self regulating for bottle pressure pre MAF. However, and this is why post MAF and the Interface is better, due to air dynamics in the intake tract, the spray doesn't always hit the wires the same with different size shots or bottle pressure. We can normally dial in one size and one pressure to hit the wires for a good reading, but changing either will cause the nozzle to be out of whack many times. Been there done that, many times.
Robert
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