Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

what size injectors

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Old Nov 17, 2004 | 10:30 AM
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Default what size injectors

what size injectors does everyoen recommend for 6psi powerdyne kit?
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Old Nov 17, 2004 | 07:09 PM
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THe 6# vortech kit comes with Lucas 38#. They flow enough but one of them was somehow different and I got troubles. I went with 36# Bosch: for tuning they are perfect, but maybe a little too small.
I don't know how much additional fuel you will need because of the SC combined to your actual setup.
Which injectors are you running right now? HP? Torque?
Does the powerdyne come with a FMU or a bigger fuel pump?
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Old Nov 17, 2004 | 10:54 PM
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powerdyne comes with both FMU and fuel pump...i am still running stock injectors
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Old Nov 18, 2004 | 04:49 AM
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The only thing I know about FMU's is that they are not so easy to use.
I persomally would go with bigger injectors (but not too big), then a whide band tune.
Fuel and boost gauges are a must (in my opinion). I have normally 62 PSI fuel pressure and 58PSI at WOT. My 36# Bosch are at the upper limit, for my setup it would be better to go a step higher: 38 or 42#
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Old Nov 18, 2004 | 05:29 AM
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42's would be a good choice.The FMU's are pretty unreliable.
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Old Nov 18, 2004 | 07:47 AM
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I use 42's (green top) on 10# boost and put down about 500RWHP. So they would be enough for your setup and there are always guys going bigger around here so you might even be able to find a used set for a good price.
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Old Nov 21, 2004 | 02:46 AM
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42's are your best bet i made 471hp with my stock injectors
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Old Feb 26, 2005 | 08:13 PM
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I bought green top 42's to go with my 4.5 psi powerdyne kit, I am looking into the tuning part before I install. If I use a program like HP tuners, what parameters would need to be changed?
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Old Feb 26, 2005 | 10:59 PM
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#42's are your best bet , we have the Lucas #42's on sale right now (279.95) .

Mike
www.neweraperformanceparts.com
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