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Do I need bigger injectors?

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Old Mar 14, 2009 | 01:21 AM
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Default Do I need bigger injectors?



Using the stock injectors...

Is it 85% is the reasonable max then you need to get bigger injectors?
I plan to go FI at some point anyway so I know bigger injectors will be needed then.

The 8.1l injectors are popular, would those be big enough for a maggie? If I do need bigger injectors, I dont want to have to buy twice.

thanks
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Old Mar 14, 2009 | 01:52 AM
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how much boost you want to push?
85% is the rule of thumb..
If i were you, id get ahold to SRT10Killer... he has some plug and play 72#s
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Old Mar 14, 2009 | 02:18 AM
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I dont know, ive never driven a vehicle with boost. I was planning on 6-8 pounds. More than that and I have to start worrying about the bottom end.

72# seems awfully big... the 8.1s are around 39#, right?
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Old Mar 14, 2009 | 02:28 AM
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Truck 8.1 injectors are 31#, marine 8.1 injectors are 42#...i think thats right
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Old Mar 14, 2009 | 07:15 AM
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Originally Posted by Ender06
Truck 8.1 injectors are 31#, marine 8.1 injectors are 42#...i think thats right
Yes
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Old Mar 14, 2009 | 07:28 AM
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I remember that KBRacing once posted that the 31lb injectors are actually 29.9...
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Old Mar 14, 2009 | 07:31 AM
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Originally Posted by budhayes3
I remember that KBRacing once posted that the 31lb injectors are actually 29.9...
Could be. In a stock tune file for an 02 2500 with the 8.1 the IFR table is set to 29.95.
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