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What size injectors for my application?

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Old Aug 30, 2005 | 07:41 PM
  #1  
gtturborex's Avatar
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Default What size injectors for my application?

Like the title says, I've got a built turbo b20vtec and i'm looking for around 600whp. also i would like to know the difference between saturated and peak and hold injectors.

Thanks,
Mike
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Old Aug 30, 2005 | 08:13 PM
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Default Re: What size injectors for my application? (gtturborex)

Saturated injectors- no resister box needed.
P&K injectors- you'll need a resistor box.

You'll need atleast 900cc injectors if not more if your planing on making 600whp. Will u be running a 255 intank pump or an external fuel pump?
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Old Aug 31, 2005 | 12:51 PM
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Default Re: What size injectors for my application? (SpdFrk)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SpdFrk &raquo;</TD></TR><TR><TD CLASS="quote">Saturated injectors- no resister box needed.
P&K injectors- you'll need a resistor box.

You'll need atleast 900cc injectors if not more if your planing on making 600whp. Will u be running a 255 intank pump or an external fuel pump?</TD></TR></TABLE>

i have a walbro 255ho in tank already. can i use the stock resistor box or do i have to get an aftermarket one? i was thinking about getting 1000cc injectors, but i just wanted to make sure.

Thanks,
Mike
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Old Aug 31, 2005 | 01:12 PM
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Default Re: What size injectors for my application? (gtturborex)

your other option is to get smaller injectors and either tap the manifold right behind the main 4 for 4 additional injectors or tap it at the t/b end for 1 or 2 additional injectors and either get a custom ECU or an additional injector controller. this way you can have 4 smaller injectors running all the time. smaller injectors = better fuelling under light load conditions, especially if you're in the ballpark of 1000cc. just my 2 cents.
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Old Aug 31, 2005 | 05:48 PM
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Default Re: What size injectors for my application? (gtturborex)

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

i have a walbro 255ho in tank already. can i use the stock resistor box or do i have to get an aftermarket one? i was thinking about getting 1000cc injectors, but i just wanted to make sure.

Thanks,
Mike</TD></TR></TABLE>

Stock resistor box will do.
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Old Sep 1, 2005 | 07:20 PM
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Default Re: What size injectors for my application? (SpdFrk)

or you can DIY yourself one really cheap if you don't want to pay for a stock one and don't have one handy.
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Old Sep 1, 2005 | 08:26 PM
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Default Re: What size injectors for my application? (95lstegman)

ya i already have one laying around. thanks
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