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420A Gear based boost controller

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powellds2

15+ Year Contributor
221
6
Dec 3, 2007
Baker City, Oregon
Anyone know of any gear based boost controllers that are out there? I use a boost box on my srt and love it. I run the portfueler on my 420a and I'm trying to find a way to adjust boost specific to each gear instead of having to push a button. I was hoping maybe there was a controller that did a "speed + rpm = x amount of boost type of control since the ecu doesn't know which gear it's in, afaik. I think that would be the best way to get a gear based boost control when the ecu isn't an option.
 
Haven't really looked into this but I noticed when I had my stock boost controller hooked up I would have different boost levels in different gears, it would vary between 1-3 psi from 1st to 5th.

EDIT: as a matter of fact I still had a video from when I installed this cheap boost gauge and it was the only mod on the car at the time. As you can see when I shift the boost goes up in each gear so I'd look into how the stock boost controller works.

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