Max rwhp on standard EF XR8 fuel sysetm

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MICKYYYY

Post subject: Max rwhp on standard EF XR8 fuel sysetm

Posted: Wed Jan 10, 2007 1:25 pm

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Hi PPLz,

Just wondering how much does the factory fuel system can hold up 2?

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millard455

Posted: Wed Jan 10, 2007 1:34 pm

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i think its about 180 rwkw

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4.9 EF Futura

Posted: Wed Jan 10, 2007 2:18 pm

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You talking injectors etc or just fuel pump?

I squeezed 170rwkw but that was ramping the fuel pressure up BIG TIME. Almost 3 times standard fuel pressure IIRC.

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MICKYYYY

Post subject: fuel pump

Posted: Wed Jan 10, 2007 5:21 pm

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Nuh just the pump, i have bigger injectors. I was just thinking of upgrading the hole system just 2 be on the safe side of things but ill speack 2 my engine builder/tuner & see what he thinks. Becuz im currently making 235wrkw and maybe my pump is maxing out & thought id upgrade it.

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