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Originally Posted by S14DB
It's not the 'flow' from the walbro that the FPR can't handle. It's the 50psi output pressure. The Flow data you listed is 100% duty cycle not idle. Idle is were the fpr is bypassing a lot of fuel. The FPR is designed for 43psi but dealing with 50psi inlet pressure.
All the engines you listed use the same FPR. So, they are all affected by higher PSI regardless of flow.
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Does this mean that anyone, regardles of engine, using a walboro needs an aftermarket FPR to compensate for the pressure? Since, you'll be overloading the stock FPR so to speak?
What about FMUs?