Just for pondering
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Elder User
Joined: Dec 2004
Posts: 891
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From: Toulon,Il.
Just for pondering
We all seek more power in our engines. Has anyone tried getting larger injectors for the V10? I know they are available for the 4.6l and believe the 5.4Ls. My thought is that since CAIs don't seem to help much is there is probably plenty of air getting in and more fuel could be utilizied to increase HP. On other vehicles (even different manufacturers,using same inj. style) injectors have been swapped to make good power gains. Your thoughts.
Modular motor junkie
Joined: May 2009
Posts: 6,190
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From: Texas
You would need to add much more air before you worry about running out of fuel.
The stock ones are fine unless your running 6+ PSI of boost.
The 4.6,5.4 and 6.8 all use the same injector.
A 5 star tune will help you out allot.
The stock ones are fine unless your running 6+ PSI of boost.
The 4.6,5.4 and 6.8 all use the same injector.
A 5 star tune will help you out allot.
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Elder User
Joined: Dec 2004
Posts: 891
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From: Toulon,Il.
Thanks Bill, I didn't know how flexable the stock ones are.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
No matter what, you're running at "stoich" in closed-loop. Even at WOT, the stock tune keeps it in stoich almost 100% of the time. Only with a tune does it go open-loop at WOT.
So, larger injectors wouldn't help anything except someone else's wallet
You'd need a tune to use the larger injectors anyway, and then you get into a situation where the spray pattern might not be optimal, making fuel economy (and POWER!) worse.
So, larger injectors wouldn't help anything except someone else's wallet
You'd need a tune to use the larger injectors anyway, and then you get into a situation where the spray pattern might not be optimal, making fuel economy (and POWER!) worse.
Hotshot
Joined: Mar 2007
Posts: 10,101
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From: Pa
The stock injectors on a NA 2V V10 are capable of 12:1 AF ratios and could more than likely even be enriched more. The thing is there is a point where you are just wasting fuel and hurting power in the process. I believe the stock 3V V10 injectors are ok for around 5-6 lbs of boost.
