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Injector size for N2O

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Old May 10, 2009 | 01:58 AM
  #1  
charlie31603's Avatar
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From: Tampa, Florida
Car: 1987 Chevrolet Camaro Z28 IROCZ
Engine: L98 350, mini ramed and camed
Transmission: T56 6 speed manual
Axle/Gears: 10 bolt 3:73 limited slip
Injector size for N2O

OK. I need new fuel injectors. But don't know what I need to get. I have a cammed and mini rammed 350. Should put out 400hp at the crank. After doing some calculations. The motor is calling for 32lb/hr injectors with 43.5psi at 80% duty cycle. But I have a Zex dry system I plan on putting on it also. Plan on doing a 125 shot. So with that on there it's calling for 42lb/hr injectors. Now that's also with the fuel pressure at 43.5 and a duty cycle at 80%. Now in order to run the N2O with the 32's I will have to pump the pressure up to 77psi. Which means I will be getting close to the lock up territory of the injectors. Last thing I want to do is max out the injectors and blow something up. Now can I run the 42's that will be perfectly in there range with N2O and just turn them down for the NA part when off the N2O. Just don't know what to go with. It might be that it's 3:00am and I'm tired as hell. But any help would be great! Thanks for the help in advance! Adam :-)
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Old May 11, 2009 | 07:54 PM
  #2  
1quik4's Avatar
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Joined: Apr 2009
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From: Lasalle, Ont
Car: 1987 Trans Am GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.73's
Re: Injector size for N2O

Curious at what you found out?? I have to get inj as well and was wondering which ones to get.. I am assuming you are running an AFPR as well??
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Old May 11, 2009 | 10:03 PM
  #3  
southbay08's Avatar
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From: Rockville Centre, NY
Re: Injector size for N2O

we have 32lb and 42lb injectors. You can give us a call at 516-492-6504
southbayfuelinjectors.com
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