Injectors...430 RWHP??
Melting Slicks
Joined: Jan 2002
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From: Atlanta GA
Re: Injectors...430 RWHP?? (95AquaC4)
Well since your running a wet kit you should be fine... The only thing that might have a problem is the fuel pump... For the extra fuel needed to make the extra power is coming in from the Fuel jets of the NOS system, which has nothing to do with the injectors
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Le Mans Master
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From: Amateur driver on open course.
Re: Injectors...430 RWHP?? (StealDads67)
My kit's a dry kit. The extra fuel comes from an auxilliary fuel pump, provided with the kit, and fed through the injectors by boosting fuel pressure, through a fuel jet. That is classified "dry" right? It was my understanding that "wet" was fuel and n2o being injected at once.
Melting Slicks
Joined: Sep 2002
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From: Union City CA
Re: Injectors...430 RWHP?? (95AquaC4)
I heard you take your FLY HP and divide that by number of injectors which would be 8, then divide that by 2 then divide that by .8
The other way around would be like say a 40lbs injectors x.8= 32 then 32x2=64, so each injector can support 64HP then if you have 8, 64x8=512HP capacity with 8 injectors rated at 40lbs, I think it would be a little more, maybe the 40lbs can support 550HP. Hope this helps out
The other way around would be like say a 40lbs injectors x.8= 32 then 32x2=64, so each injector can support 64HP then if you have 8, 64x8=512HP capacity with 8 injectors rated at 40lbs, I think it would be a little more, maybe the 40lbs can support 550HP. Hope this helps out
Melting Slicks
Joined: Jan 2002
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From: Atlanta GA
Re: Injectors...430 RWHP?? (95AquaC4)
Oh ok your correct... I thought you had a wet system... I was under the impression 150 is alot for dry.. but what do i know. So basically take everything I said and forget it.....
Dry- line is tapped in before the MAF to allow the computer the compansate and boost the amount of fuel the injectors are shooting
Wet- Is sprayed after the MAF and mixes the Gas and NO2 and the injectors basically run as normal because the system itself is giving the extra fuel...
In your case, you should def. look into if they can handle it... Post in the Tech/Perf. section, you will get more responces
Dry- line is tapped in before the MAF to allow the computer the compansate and boost the amount of fuel the injectors are shooting
Wet- Is sprayed after the MAF and mixes the Gas and NO2 and the injectors basically run as normal because the system itself is giving the extra fuel...
In your case, you should def. look into if they can handle it... Post in the Tech/Perf. section, you will get more responces
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Le Mans Master
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From: Amateur driver on open course.
Re: Injectors...430 RWHP?? (StealDads67)
Actually, you raise another issue. I was spraying before the MAF and running very rich. I have a second n2o solenoid which boosts the pressure through the reg. I was running double rich so to say. The MAF was telling the computer to send more fuel, and the solenoid was boosting the pressure. After figuring this out, I move my nozzle to after the MAF and the car felt ALOT stronger! Unfortunately, this was near the end of the season, and except for a few street blasts, I have had not been able to test my theory.
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From: Sachse Texas
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Re: Injectors...430 RWHP?? (95AquaC4)
You are probably OK as the dry kits raise the pressure to make the injectors flow more fuel and in essence act as if they were larger injectors. A 24# injector is rated at either 39.5psi or 42psi depending on brands, and you are raising that pressure to probably closer to 50psi on the squeeze making the injectors flow more than their rating. You can not really use the standard injector calculators to determine what size you should be going with unless they take the fuel pressure into consideration which most do not. At normal pressures, 39.5-43psi, then the injector that the caluculators will tell you to use for 430rwhp is right in between a 30 and 36# injector. In your instance, you are most likely fine with the 22-24# injectors. The only concern I would have running your system is injector lockup. The stock injectors will tend to lock up at high pressures (>55-60psi). I know one person ran an LT4 on this board and was having this problem with his LT4 28# injectors. The Ford injectors have a different design that will not lock up at those same rates.
Le Mans Master
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From: Boston
Re: Injectors...430 RWHP?? (Vette92)
Dont risk it, get a 255lph pump and a set of 42# svo injectors. Yes 42# for 400+rwhp you should be using this much, or you might risk running kean, the injectors shouldn't go over 80% duty. The F-150 Lightning has 42's# and only has 380hp flywheel.
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Le Mans Master
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Re: Injectors...430 RWHP?? (Darkness)
Dont risk it, get a 255lph pump and a set of 42# svo injectors. Yes 42# for 400+rwhp you should be using this much, or you might risk running kean, the injectors shouldn't go over 80% duty. The F-150 Lightning has 42's# and only has 380hp flywheel.
Later :cheers:
Later :cheers:
Pro
Joined: Dec 2002
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From: Dallas Texas
Re: Injectors...430 RWHP?? (Darkness)
http://www.smokemup.com has an "auto math" section that can help you calculate the size injectors you need.
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Le Mans Master
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Re: Injectors...430 RWHP?? (Brand-X)
http://www.smokemup.com has an "auto math" section that can help you calculate the size injectors you need.
Le Mans Master
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From: Sachse Texas
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Re: Injectors...430 RWHP?? (Light84vette)
Read my response again. You do not need a 42# injector. The only reason you would need that large of injector is if you were trying to feed the Nitrous without raising the pressure of the fuel system. At the very MOST you may want to consider the SVO 30# but off the juice that is severe overkill for your engine.
Chris
Chris
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Le Mans Master
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Re: Injectors...430 RWHP?? (Vette92)
Read my response again. You do not need a 42# injector. The only reason you would need that large of injector is if you were trying to feed the Nitrous without raising the pressure of the fuel system. At the very MOST you may want to consider the SVO 30# but off the juice that is severe overkill for your engine.
Chris
Chris
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From: Sachse Texas
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Re: Injectors...430 RWHP?? (95AquaC4)
I think the set of 30# I currently run came from Summit, but you can usually find one of the Ford vendors having a GP of somesort and get a good deal through them.
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Le Mans Master
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From: Amateur driver on open course.
Re: Injectors...430 RWHP?? (Vette92)
I think the set of 30# I currently run came from Summit, but you can usually find one of the Ford vendors having a GP of somesort and get a good deal through them.
Le Mans Master
Joined: Apr 2002
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From: Boston
Re: Injectors...430 RWHP?? (95AquaC4)
Okay then. Thanks. Where would be the best place to buy the Ford injectors. I definately don't want that lock-up situation.
Later
Le Mans Master
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From: Sachse Texas
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Re: Injectors...430 RWHP?? (Darkness)
I disagree that you can not overinject a car. The smaller injector will allow a longer spray pattern which will provide better fuel atomization.
Melting Slicks
Joined: Sep 2000
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From: Carlsbad, CA CA
Re: Injectors...430 RWHP?? (Vette92)
I have to agree with Vette92. You DO NOT NEED 42# injectors!!!! on the motor you are not even at 300rwhp, if you have 42# injectors you would have a very very rough idle, it would wash the cylinder walls, fuel puddling, and plus a number of problems. 24 or 26lbs is perfect. Since you already have the aux pump, you will be fine, plus, the OBDII cars are very good for compensating for the fuel that is needed with a dry nitrous setup. Just don't jet it over 150 shot.
[Modified by zelement, 2:16 AM 2/18/2003]
[Modified by zelement, 2:16 AM 2/18/2003]