Greddy profec b spec 2 boost controller setup




















Just make sure you have no boost leaks and increase the duty cycle doing 3rd gear pulls until you get the boost level you want. The first time is actually pretty fun. Do you have a decent intercooler? If you don't you'll be sorry. But if you have then proceed forward.

Set your gain on Set your set gain to 8. Set gain should always be about 4lb below your target boost. So set gain is an actual boost number. It will delay the waste gate opening till that point. Where as gain is a reference number and just a number to reference a range for the boost controller to work in.

Now set your boost. Turn the boost controller to 10 by simply turning the dial to A quick drive in third gear and see what the boost is. Too low? Turn it up to 15 then keep going till you achieve your desired boost. Once that is found you can play around with set gain by turning it up just a notch at a time to see if the boost will come on ealier but if it over boosts turn it back down again.

There is no need to change Gain as 10 is pretty much perfect for most setups. Good luck. Don't go over 12lbs boost for standard turbo. In fact, if your intercooler is standard leave it at 10lbs. In fact, if your ECU is standard don't even hope to get good results at 12 or 13 psi.

The following steps should be taken in exactly this order, taking into consideration all of the previous information: 1. Change boost pressure units to psi if so desired see manual. Clear PEAK boost value see above. Set GAIN to 0 see above. Test for boost falloff at high rpm. You should probably do this in a wide open area with no other cars nearby and preferably no cops.

It is also good to have somebody in the car with you that can watch the gauge while you concentrate on not wrecking your car. If there is no boost falloff, then go to Keep in mind that when you increase the GAIN value, the corresponding boost that you will go up to will be higher even if you leave the SET value alone.

Repeat until the boost pressure does not decrease, or until you feel surging. If you feel surging and the boost pressure still decreases not sure if this is possible then decrease to the last level that you did not feel surging at.

Do yourself and us a favour. Draw a sketch showing all the lines and connections. Random photos of small bore vac lines in an engine bay are useless. For example There is no reason to hook up to that line, and we can't see what is hooked up to it. So what are we supposed to say about it? That all looks correct. The line connected to the BOV line is for the boost signal just for display.

The connection at the turbo is the boost signal for control and the the other line from the solenoid definitely goes to the actuator. So your hookup is the same as the one shown on page 6 of the below instructions. Solenoid could be faulty. Or it could be connected at the wrong ports on the valve itself. Signal from the turbo compressor side should be connected to the NO port. The wastegate actuator should be connected to the COM port.

This is only true for internal wastegate situations which you have. If the signal is connected to the NC port then things could go wrong. Even if it is in psi then it is 12 psi which is still too high. So, if it is set like that then it is simply not working. You need to be a member in order to leave a comment. Sign up for a new account in our community. It's easy! Already have an account?

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Start new topics and reply to others Subscribe to topics and forums to get email updates Get your own profile page, build reputation and make new friends Send personal messages to other members. I have come past the article on evo forum about how to tune it.

But i was just wondering if any one is who has the same set of mods and is running. Note this is only supplemental. Please refer to the supplied instruction manual for detail. If you have any technical questions please call us at or email [email protected].

A built in warning feature will alert the driver when the boost exceeds the set boost pressure with an alarm and a message in the display. Sold separately. Cut the vacuum line on the fuel pressure regulator and install the supplied three way-fitting. Not the Valve Unit. Please make sure that the 4mm hose is secured with zip ties after the installation to prevent them from disconnecting. Mitsubishi have fuel pressure controlling solenoid valves.

Make sure to get the pressure from the line between the intake manifold and the solenoid. When routing the 4mm hose through the firewall, make sure not to kink this hose. Kinked hose will cause the unit not to function properly. If you have any technical questions please call us at or email [email protected] LCD screen to monitor boost pressure at real time.



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