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What HP to replace stock fuel pump?

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Old 09-06-2007, 10:14 PM
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Default What HP to replace stock fuel pump?

looking at around 440-480 with the fun button on.

will this pose a problem with the stock fuel pump??

an idea on safe fuel injectors would be appreciated as well! (80% rule)
Old 09-07-2007, 11:10 AM
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You will need to replace the stocker it is only good to about 400-430rwhp. 42# injectors will suffice.

Nate
Old 09-07-2007, 10:08 PM
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Thanks, nasty


Anyone agree with the fuel pump rating??
Old 09-07-2007, 10:12 PM
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Originally Posted by Nasty N8
You will need to replace the stocker it is only good to about 400-430rwhp. 42# injectors will suffice.

Nate

ya about 420 is where i was maxed out on fule with the stock pump
Old 09-09-2007, 01:30 AM
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racetronix is selling a kit, sounds like, that retains the stock function, including direct fit and bowl-filling venturi effect, with a walbro pump. i found another kit from full throttle speed that does the same thing, with the Walbro fuel pump, again, for 100 bucks less......

anybody have any insight into this?? what is the appropriate change? is a kit needed or can the existing hardware be moved over to the new pump, perhaps with a sleeve for the smaller diameter walbro??
Old 09-09-2007, 02:01 AM
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Its definelty worth the money to go with the racetronix, you'll regret it if you don't.




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