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Bigger injectors with head/cam swap?

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Old 02-07-2012, 01:28 AM
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Default Bigger injectors with head/cam swap?

How come I don't hear more about swapping FI's with a h/c swap? Wouldn't that help add a lot more power?
Old 02-07-2012, 05:15 AM
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Yes, and a necessity in most cases. A lot of people add them in after the fact.
Old 02-07-2012, 09:49 AM
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I never did mine and had no issues. Never really needed it so I didnt worry.
Old 02-07-2012, 10:21 AM
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The year model matters too right. 28 lb vs ?
Old 02-07-2012, 10:56 AM
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yes,
use this to calculate what injectors you need

http://www.witchhunter.com/injectorcalc1.php4
Old 02-07-2012, 02:29 PM
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your tuner should now if theyre maxed out and need bigger ones.
Old 02-07-2012, 06:24 PM
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Originally Posted by LeanPocket
yes,
use this to calculate what injectors you need

http://www.witchhunter.com/injectorcalc1.php4
cool .thanks
Old 02-08-2012, 10:00 AM
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you can max out injectors depending on heads and how the flow and cam match best to know what kind of power you want to make and go from there
Old 02-08-2012, 11:38 AM
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Originally Posted by MEGATRONSS
How come I don't hear more about swapping FI's with a h/c swap? Wouldn't that help add a lot more power?
it all depends on the injector duty cycle. It isn't that you don't hear about it, but usually because either no one mentions it now and they swap injectors while they are at it, or they already bought injectors and had them in for the future mods.

It doesn't necessarily add power like others have mentioned, it is a matter of providing enough fuel for your air consumption of the engine and the tune in the computer. if your duty cycle is 100% and you are running 13 AFR WOT, then yes, putting in new larger injectors and tuning it to 12.5 or something depending on your setup would net you more power.

ALSO, keep in mind people also upgrade fuel pumps... the 255 L/hr pump is only good for a 51 LB injector...other then that you would need two pumps of some combination



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