Quote:
Originally posted by DirtyLude
With a boost controller you CANNOT set it to go lower than the spring that is in the wastegate. If you have a 6psi spring in your wastegate, that is the absolute minimum boost pressure you can run, so when you get a wastegate figure on how low you want to boost and make sure you get the appropriate spring. The lowest you can get on the Tial 35mm is .4bar (6psi).
The non-rising rate kind of fpr's have a 1:1 ratio. For every 1psi of air pressure rise in the intake manifold it changes the fuel pressure by 1 psi. It's used in order to keep the pressure in the manifold and fuel pressure at a constant deviance. The rising rate kind have a ratio of X:1 meaning that for every 1psi of air pressure change in the intake manifold, the regulator will change the fuel pressure by X amount (X being anything higher than 1).
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How then does one calculate the appropriate X in the X:1 ratio of a rising rate FPR for a given amount of boost--say 6 psi? Is it a one-to-one? So I would want a 6:1 RR FPR?
