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Just make sure that you are using fuel line. Other grades of hose may turn into mush and plug your injectors or leak and cause a fire.
Pressures are quite high, so fittings and joints need to be good.
Is this a rising rate pressure regulator? This would not work with a stock Trionic setup. Lets try to clarify what is happening so that other readers don't get the impression that this is something that they should do.
It is possible to add a rising rate regulator to a Trionic system, which works in addition to, not in place of the stock regulator. It will cause pressures to increase above a certain boost pressure. The air pressure to the MAP sensor can be jiggered to prevent it from seeing the pressures that would trigger a fuel cut. This will augment mixtures. But is it is not a great solution, as it is insensitive to RPM's. So it is not a true mapping solution. It will tend to be richer at lower RPM's and leaner at higher RPM's.
If a good true mapping after market engine management system is being used, then a rising rate regulator would not be required at all. In this case, for large amounts of power and fuel delivery rates, larger injectors, pressures or both could be required. A rising rate regulator would not be required. A replacement or additional regulator could be used to increase the fuel pressures. In this case, you don't have DI, and you need to add a hardware knock sensor.
A rising rate regulator is never needed in a proper solution. But one can be used in a configuration that is marginal.
You may know all of this and know what you are doing, but lets make sure that other readers do not take this idea and get obsessive about adding or changing fuel regulators on their NG900's. The discussions of rising rate regulators on the C900 modified Saabs probably confuses many NG900 readers.
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