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Some of you are probably wondering where the initial on-time and total nitrous settings are. These are not designed into this unit as it is aimed at drag racers with traction issues as opposed to street machines. It is also designed to work with nitrous systems that use the
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larger than purge size solenoids. The unit is a direct drive, one speed deal. It reduces the flow rate down 50% of total flow for the time you designate. This flow reduction tied together with time will give you enough traction control to get the car moving before it ramps up to full flow.
To reduce the initial hit further requires that the solenoids open and close at a faster rate and this can be a problem with the large solenoids. They reach a point where coil saturation occurs and the internal piston just hangs and does not open or close. This unpredictable and unreliable situation is well known and led to the decision to leave some of the eye candy out of the design.
GETTING STARTED
 Your learning curve is pretty short. You have already wired up an ignition system and worked with relays, so this will be a piece of cake. To get acquainted with how it works, I suggest you do as I did and sit down with the directions, wiring schematics, software, and the controller. Wire up the controller with some extra switches you have laying around. Shown in the photo are a throttle switch, reset/purge button and a switch to choose program 1 or 2. Go back and forth between the instructions, software, and putting the box through its paces and you will have a solid working foundation in an hour or so. Don’t sweat the software. If you can find the computer ON button you can work this user-friendly software. |
TURBOS AND NITROUS
As we went to press there is a Turbo version being finalized. This version is reversed. To compensate for turbo lag on launch, the nitrous hits at normal full flow and then ramps down to zero over the set time as the turbo spools up. This process will improve the 60-foot times of these cars.
END GAME
I spent the better part of a week beating on this thing and did not manage to kill it. I thought that spoke fairly well as to its design and I liked it well enough that I elected to take on distribution of this tool. I feel the possibilities are endless since I can use it either as a progressive, as a multi timer, or both. There is also the cool two-program switch and independent control over the solenoids. You may want to consider the possibilities of the normal or reverse version as I suspect there are uses for the fuel injected crowd (blown or NA) as well as the nitrous and non-nitrous user alike.
The PROgressive is available separately or you can purchase a complete package with the software, interface cable, fuse, terminal ends, wire and six relays. It is being distributed by Koehler Injection and Nitrous Supply.
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