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Old 31st May 2011, 11:42 AM   #1 (permalink)
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Fuel Pumps

With previous cars, Subaru/Evos when doing what i consider stage 1 (full decat/intake/remap) usually as a safety measure fuel pumps are upgraded.....with the GTR when are people upgrading their fuel pumps?
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Old 31st May 2011, 11:45 AM   #2 (permalink)
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tuners seem to say no unless you start to go over the 600BHP

on the RB26's you would change the pump when you go over 420BHP with new injectors, so knowing the cut off point would be useful
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Old 31st May 2011, 11:55 AM   #3 (permalink)
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If running on petrol rather than E85 I would not change them whilst still on stock turbos. There are two of them.

Whilst the engine management doesn't know the fuel pressure, it does know the air fuel ratio and you will see the fuel trims climbing if you're running out of pump.
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Old 31st May 2011, 12:01 PM   #4 (permalink)
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Thanks John, so the OEM fuel pumps won't suffer with bigger injectors with stock turbo and the usual bolt on mods?
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Old 31st May 2011, 12:11 PM   #5 (permalink)
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Correct.
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