Fuel and Ignition Fuel Pumps and Systems, Ignition and Spark Systems

injectors i should run...???

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Old Jun 21, 2011 | 10:31 AM
  #1  
manfire1987's Avatar
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injectors i should run...???

Ok maybe I am making this more of a hassle than it should be but I don't want this build to go wrong .... I have seen the on line equations to figure out fuel injectors size but not sure exactly if that's true as I really don't know what kinda flywheel horse power I should or could expect here is the build also in signature ...... all bolt ons ... cc306 cam ported heads "similar to le2" 1.6 rr what you guys think?????
Old Jun 21, 2011 | 07:13 PM
  #2  
Injuneer's Avatar
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Re: injectors i should run...???

You could be around 450HP at the flywheel, and "get by" with 32 #/HR injectors. But I'd use a 36 #/HR injector, to cover you up to about 515HP. There is no downside to a larger than required injector, as long as it isn't so ridiculously big that the PCM can't turn it down to the tiny pulse width required for idle. But the stock PCM seems to be capable of handling 42's with no problem.
Old Jun 21, 2011 | 09:58 PM
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Re: injectors i should run...???

So needless to say running 42 lb injectors for this build is to much??? That's Wat I purchased lucas 42lb...
Old Jun 21, 2011 | 10:34 PM
  #4  
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Re: injectors i should run...???

Originally Posted by manfire1987
So needless to say running 42 lb injectors for this build is to much??? That's Wat I purchased lucas 42lb...
Originally Posted by Injuneer
You could be around 450HP at the flywheel, and "get by" with 32 #/HR injectors. But I'd use a 36 #/HR injector, to cover you up to about 515HP. There is no downside to a larger than required injector, as long as it isn't so ridiculously big that the PCM can't turn it down to the tiny pulse width required for idle. But the stock PCM seems to be capable of handling 42's with no problem.
I think I already answered your question. You will be good for 600HP.
Old Jun 21, 2011 | 10:37 PM
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Re: injectors i should run...???

So bigger than what I need but I will be ok... thanks for the help
Old Jun 24, 2011 | 06:05 AM
  #6  
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Re: injectors i should run...???

42's should be fine. With any injector though, tuning is a must.

I have a set of 42's I'm selling. They are used but had them flowed/cleaned but haven't put any fuel in since. Comes with a flow sheet. PM if interested.
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