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When to upgrade fuel pump

716 Views 3 Replies 2 Participants Last post by  gritsak
At around what RWHP level do the mkivs need an upgraded fuel pump?
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G
i dont think its the rwhp you should be worried about. i think its how much boost you plan on boosting.
G
The best way to confirm this is with a fuel pressure gauge and not go by hocus pocus.
toypro said:
At around what RWHP level do the mkivs need an upgraded fuel pump?
ANYWAYS...

stock pump will flow enough for around 500rwhp. at that point you will need more then just an upgraded pump though, you'll need bigger injectors, rail, lines, ect on a supra.
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