Why do some many run such a large pump as a 255lph pump???
10-05-2001, 06:02 PM
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Why do some many run such a large pump as a 255lph pump???
Is it because people are raising pressure and are trying to compensate? I'm looking around to see what size pumps I may need and I did some math. A setup with 450 injectors at normal pressure would only require 110lph at the BARE minimum. So why 255lph??? That's like 1000cc injectors!!! I know you guys can't be running injectors this big. So what's the reason that I'm not seeing? I just want to know so I know what features to look for in a pump and why I need them.
10-05-2001, 06:46 PM
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Re: Why do some many run such a large pump as a 255lph pump??? (superfastCRX)
well if you're running an FMU you need a high pressure pump, that's the reason for everyone running the Bosch pumps.
10-05-2001, 10:22 PM
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Re: Why do some many run such a large pump as a 255lph pump??? (TurboInteg95)
As boost increases so does the fuel PSI. Even with a static 1:1 fpr's this increase will be seen but not as much as rising rate fpr's.
10-06-2001, 06:48 AM
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Re: Why do some many run such a large pump as a 255lph pump??? (drealgsr)
It is tough to have too much fuel when you're dealing with FI of any kind, especially boosting high with a turbo. A good fuel pump is usually a must-upgrade when running FI.
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