Luke, if you are running 550s (I assume you are running Hondata with them?) you will need neither the fuel rail nor a fuel pump. With the 550s you can run the stock fuel pressure, and the stock fuel rail is more than sufficient. You won't even need to install the fuel pump supplied by JR.
Are you starting out with 6 psi or are you going straight to 9?
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Last edited by sharkcohen : 01-17-2003 at 07:26 PM.
Originally posted by sharkcohen Luke, if you are running 550s (I assume you are running Hondata with them?) you will need neither the fuel rail nor a fuel pump. With the 550s you can run the stock fuel pressure, and the stock fuel rail is more than sufficient. You won't even need to install the fuel pump supplied by JR.
Are you starting out with 6 psi or are you going straight to 9?
....If you do install a different fuel pump (i.e. high flow Walbro), then you might want to invest in an adjustable fuel pressure regulator. When I had the stock fpr with a 255 lph walbro intank pump, my static fuel pressure was ~60 psi compared to the stock pressure of 40-47 psi. My car ran overly rich and I had to do the TOO fpr relief hole to lower the pressure.
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....If you do install a different fuel pump (i.e. high flow Walbro), then you might want to invest in an adjustable fuel pressure regulator. When I had the stock fpr with a 255 lph walbro intank pump, my static fuel pressure was ~60 psi compared to the stock pressure of 40-47 psi. My car ran overly rich and I had to do the TOO fpr relief hole to lower the pressure.
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