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Stock 28.8 injectors on a F11 cam

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Old 08-07-2006, 08:33 AM
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Question Stock 28.8 injectors on a F11 cam?

Do you think a set of stock 28.8 injectors will do the job on the f11 cam or will they not be enough?

Last edited by KilerTA; 08-07-2006 at 08:58 AM.
Old 08-07-2006, 09:07 AM
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You should be ok I would think. I was running the prc ls6 heads and a 228/232 cam and my injector duty cycle was at 96 percent. I'm an automatic not sure if that makes a difference.
Old 08-07-2006, 09:27 AM
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I ran my stock 26 lbs injectors up to 425 hp with no issue for 3 years
Old 08-07-2006, 09:38 AM
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They will work, but you should change them to be on the safe side if you've got the cheddar. The SVO 30's are really nice and would offer plenty of fuel. My 28.8's are hitting 104-108% with an F14.
Old 08-07-2006, 11:27 AM
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Yeah. Youll be above the recommended 85% im sure, but I didnt completely max my 28# till I had heads too.
Old 08-07-2006, 11:29 AM
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if you plan on doing more.... go ahead and change them. get 30# or 38# nothing more unless you plan on doing a lot more to your motor
Old 08-07-2006, 11:59 AM
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im also adding patriot stage 2 heads to them as well so ill pretty much have full boltons think i need to upgrade? or can i hold out on putting them in for a month or two ?
Old 08-07-2006, 12:15 PM
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Originally Posted by KilerTA
im also adding patriot stage 2 heads to them as well so ill pretty much have full boltons think i need to upgrade? or can i hold out on putting them in for a month or two ?
Most likely. If youre logging yourself watch your duty cycle and youre AFR.

You can run your injectors over 100%. Some have even pushed past 120%. But remember that you run the risk of leaning out.
Old 08-07-2006, 02:10 PM
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Originally Posted by GuitsBoy
Most likely. If youre logging yourself watch your duty cycle and youre AFR.

You can run your injectors over 100%. Some have even pushed past 120%. But remember that you run the risk of leaning out.

u don't want to lean out. do it right and do it once
Old 08-07-2006, 04:31 PM
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where can i get them how much and what color do i need to get?
Old 08-07-2006, 04:43 PM
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Originally Posted by KilerTA
where can i get them how much and what color do i need to get?
Get the pretty purple ones, or rainbow color even!


Actually, forget about color. Not all brand of injectores have a color coding. I would look at a set of SVO 30's if you plan on staying 346 cubes and n/a. If youre goung to build a bigger motor, look at the 42# injectors. If youre going forced induction, it depends on the application, but you might need 42, 60, or even higher injectors. Keep in mind that anything past SVO 30's may require a new fuel pump and possibly fuel lines and rails, etc.
Old 08-07-2006, 05:09 PM
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im using 42# with my f15 The 28# will be fine
Old 08-07-2006, 06:31 PM
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I am running dart 205s with a F14 cam and still have my stock Z06 28.8 injectors. They are at the max now making over 450 rwhp, but since I do not have any more upgrades planned I will be keeping them for a while.
Old 08-07-2006, 07:16 PM
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I'm still using the stock 28.8 with the F13. The duty cycle is between 85-88%.
Old 08-07-2006, 08:19 PM
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I have them on my F13 cam and they are fine.




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