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is 990cc injectors to big?

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Old 11-30-2002, 09:44 AM
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Default is 990cc injectors to big?

my friend is selling me a set of 990cc injectors(low impedence) for $250 new. he says he needs the money, are these to be for a b18b daily driver turbo?
Old 11-30-2002, 09:46 AM
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Default Re: is 990cc injectors to big? (90teg)

those are too large for your app. what type of fuel management do you have?
Old 11-30-2002, 09:46 AM
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Default Re: is 990cc injectors to big? (90teg)

what are you using to control them?
Old 11-30-2002, 09:47 AM
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Default Re: is 990cc injectors to big? (90teg)

nothings too big if you can get it to idle
Old 11-30-2002, 09:53 AM
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Default Re: is 990cc injectors to big? (MiraiZ)

nothings too big if you can get it to idle
My thoughts exactly. What kind of fuel management are you running?
Old 11-30-2002, 09:56 AM
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Default Re: is 990cc injectors to big? (themi6group)

a zydne gold secu, but my turbo set up is not done yet.
Old 11-30-2002, 09:57 AM
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Default Re: is 990cc injectors to big? (90teg)

keep in mind you need high-impedance, unless you have a resistor box or something else to control them.
Old 11-30-2002, 10:02 AM
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Default Re: is 990cc injectors to big? (themi6group)

oh i forgot to ask, whats the deal with the impedence? i don't have a clue on it.
Old 11-30-2002, 10:09 AM
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Default Re: is 990cc injectors to big? (90teg)

oh i forgot to ask, whats the deal with the impedence? i don't have a clue on it.
it's basically the voltage/pulse width on the injectors. your civic is high impedance and it will not work without a resistor box which is basically an amplifier.
Old 11-30-2002, 10:11 AM
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Default Re: is 990cc injectors to big? (90teg)

here's a link to some popular injectors and the flow rate. http://www.allmotorhonda.com/techpages/injector.htm
Old 11-30-2002, 10:12 AM
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Default Re: is 990cc injectors to big? (90teg)

saturated injectors = high impedence; peak-and-hold injectors = low impedence

to run low-impedence injectors on a car that originally came with high-impedence injectors, it is necesary to run a resistor box of some sort, or you will fry your ecu. lots of old hondas came with resisotrs boxes and they can be had for really cheap...just take a look around here and you will find one.

and yes, what are your HP goals? 900cc is probably too big for you...unless you are shootign for 600-700 hp.
Old 11-30-2002, 10:20 AM
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Default Re: is 990cc injectors to big? (downpipe)

300whp is my goal, i wanna run 15psi.
Old 11-30-2002, 10:41 AM
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Default Re: is 990cc injectors to big? (90teg)

get your head ported and polished w/ intake mani and you should have 300whp with 11-12psi with good tunning.
There are 550cc-720cc injectors for $200-$300 all over thepartstrader.com, just do a search.
Old 11-30-2002, 10:53 AM
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Default Re: is 990cc injectors to big? (themi6group)

oh one more question, would it be better to use a msd 6BTM or a msd 7AL-2
Old 11-30-2002, 11:03 AM
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Default Re: is 990cc injectors to big? (90teg)

oh one more question, would it be better to use a msd 6BTM or a msd 7AL-2
the 6 is more for street performance and the 7 is drag and for pros. just keep it simple with the 6 since you aren't seeking tons of power.
Old 11-30-2002, 11:45 AM
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Default Re: is 990cc injectors to big? (themi6group)

or you could save your money and keep the stock ignition. i have heard of many ppl upwards of 400hp w/ stock ignition...u need the right plugs gapped correctky of course...
Old 11-30-2002, 08:45 PM
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Default Re: is 990cc injectors to big? (downpipe)

Don't upgrade the ignition until you need to or you run into trouble. Of course, I'm not familiar with Zdyne at all so..
Old 12-01-2002, 11:34 AM
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Default Re: is 990cc injectors to big? (RicerRacing69)

get your head ported and polished w/ intake mani and you should have 300whp with 11-12psi with good tunning.
There are 550cc-720cc injectors for $200-$300 all over thepartstrader.com, just do a search.
Viren(b18bturbo) has MSD injectors on group buy for $250 a set, they come in 65# and 72# sizes. You just need to pick up a resistor box and you'll be good...
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