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injector size for boosted 96 lude

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Old Jun 24, 2003 | 08:03 AM
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dominate9's Avatar
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Default injector size for boosted 96 lude

I have a Walbro 255LPH fuel pump and I'm trying to find out what size injectors I'll need to be able to run 300whp. The most I plan to boost is 10psi. I'm having trouble finding a calculator that might the fuel pump into account. What is the minimum size injector that will handle this?
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Old Jun 24, 2003 | 08:19 AM
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Default Re: injector size for boosted 96 lude (dominate9)

what type of fuel management are you running or plan to.
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Old Jun 24, 2003 | 08:35 AM
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Default Re: injector size for boosted 96 lude (bgod)

depending on your setup. 550cc minimum. 720cc (safeguard. can't go wrong with em)
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Old Jun 24, 2003 | 09:00 AM
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Default Re: injector size for boosted 96 lude (dominate9)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dominate9 &raquo;</TD></TR><TR><TD CLASS="quote">I have a Walbro 255LPH fuel pump and I'm trying to find out what size injectors I'll need to be able to run 300whp. The most I plan to boost is 10psi. I'm having trouble finding a calculator that might the fuel pump into account. What is the minimum size injector that will handle this?</TD></TR></TABLE>

I would say 440 for only 300hp..
any higher and I would go to 550's
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Old Jun 24, 2003 | 09:11 AM
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Boostless97Lude
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Default Re: injector size for boosted 96 lude (Lildrgn)

780cc...... hehehehe
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Old Jun 24, 2003 | 09:13 AM
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Default Re: injector size for boosted 96 lude (Boosted97Lude)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boosted97Lude &raquo;</TD></TR><TR><TD CLASS="quote"> 780cc...... hehehehe</TD></TR></TABLE>

yea.. but he wanted only 300hp... not
OMG hp..
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Old Jun 24, 2003 | 09:23 AM
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Default Re: injector size for boosted 96 lude (Lildrgn)

anything over 440-450cc and the gas mileage is going to go down the tubes if this is a daily driver. i used to run 550's, 750's and 850 on my integra.

but primarily depends on what type of fuel management. if you're planning to run the hack the 440's. if you plan hondata or anyother type of standalone i'd go 550 because sooner or later you will up the boost, it's just natural.
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Old Jun 24, 2003 | 09:41 AM
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Default Re: injector size for boosted 96 lude (bgod)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bgod &raquo;</TD></TR><TR><TD CLASS="quote">what type of fuel management are you running or plan to.</TD></TR></TABLE>
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Old Jun 24, 2003 | 09:52 AM
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Default

The car is a daily driver and I will be using a FMU and rising rate FPR in conjunction with an Apexi VAFC.
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Old Jun 24, 2003 | 10:01 AM
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Boostless97Lude
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Default Re: (dominate9)

440s then
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Old Jun 24, 2003 | 10:23 AM
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Default Re: (Boosted97Lude)

255lph pump, 440cc injectors and an fmu is too much. most people upgrade to the 440-450cc's injectors with the vafc hack using no fmu.

unless you're planning to run a 4:1 or 6:1 fmu disk.

you may be better off running the hack with the fpr, 440's and vafc.
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