Tuning Injector Size - Tuning Forum

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Tuning Injector Size
Monday, November 05, 2007 3:47 PM
So i finally got HP tuners and was wondering how i can tune my injectors so that I can up the fuel pressure instead of having to run like 3psi all the time to account for the ford green tops.


http://www.cardomain.com/ride/2090440



Re: Tuning Injector Size
Monday, November 05, 2007 5:25 PM
simple check the how to for the inline 4. Its an equation i dont remember it off the top of my head but something to do with old injector constant divided by new injector constant or something. im not sure actually its in the faq in this forum check it out.



Re: Tuning Injector Size
Wednesday, November 07, 2007 8:34 PM
Old Injector constant X (Old injector size/New Injector Size)

Mine would be: 0.17800 X (24/42) = 0.010780 or something like that, but i made mine 0.11000 so im on the rich side.. i realized that i need to raise that even more cuz when my turbo hits like 5 PSI on WOT, there isnt enough fuel...




My CarDomain!!! --- http://www.cardomain.com/ride/2543660
Re: Tuning Injector Size
Monday, November 12, 2007 3:59 PM
Thanks guys... Im going to try to get this working sometime this week with HPT


http://www.cardomain.com/ride/2090440


Re: Tuning Injector Size
Wednesday, November 28, 2007 6:41 PM
how do you find out what your stock injector constant would be lol and stock size?


http://www.cardomain.com/ride/2090440


Re: Tuning Injector Size
Thursday, November 29, 2007 4:19 AM
Lefix wrote:Old Injector constant X (Old injector size/New Injector Size)

Mine would be: 0.17800 X (24/42) = 0.010780 or something like that, but i made mine 0.11000 so im on the rich side.. i realized that i need to raise that even more cuz when my turbo hits like 5 PSI on WOT, there isnt enough fuel...


are you tuning your VE tables? the injector constant is only to tell the ecu how big the injectors are, not to make it richer/leaner

the injector constant is under the engine table in fuel tabs somewhere





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