Using Stock Fuel Damper w/MSD 2225 Pump?

[2eighTZ4me]

Do I need to retain the stock damper when using a MSD2225 fuel pump?

[jeffp]

So you are looking for a "they said" answer. What you really should be doing is running your system to make that determination. You will get a number of answers, but at the end of the day you will need to test your specific application.

Fuel edlivery is not an area that is left up to guess work. Install the pump and test the flow of the system. You should be able to check the low pressure and the high pressure, and more importantly, will the system provide the fuel you need at your boost level. You can calculate the required flow at the required pressure you will run.

Anything other then testing the system is in my opinion just guess work and you get what you get.

[2eighTZ4me]

Actually, I'm just trying to find out if a damper is necessary. A pump will flow a certain rate at certain voltages - I can test that. The factory EFI system uses a damper to prevent surges in pressure due to voltage fluctuations in the pump. Wondering if an aftermarket pump requires the damper, just as the factory pump has one.

 

I've since gotten an Aeromotive A1000 pump. No doubt that it's good up to 600+ hp. I'm only going to be making 400. I'm guessing I don't need one, as these pumps are not necessarily rated with a damper inline, nor are there any "suggestions" on Summit's website stating that you need a damper and to "buy this one". Being that it's a true bypass setup, the FPR is going to regulate dips and surges in pressure simply by bypassing the fuel back to the tank - so if that theory holds, I should be fine. I'm just going to run "as is" and see how things go. If nothing else, I'll tune around it!