Power FC 1200 injectors? tuning needed?
09-16-01, 05:44 PM
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1200 injectors? tuning needed?
If I go with 1200cc injectors, Do I need to have someone tune the PFC or can just changing the injector # to 1200 from 850 do the trick...
09-16-01, 07:33 PM
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im wondering the same thing....
im wanting to change out to 1300cc injectors
ive been told i need to use an upgraded fuel pressure regulator like SX's and then others tell me that i dont need to
i know on the PFC you will have to change the injector size as well as the lag time and pulse correction values, but what are the values for those parameters???
where do i get the numbers from for the calculations??
thanks
im wanting to change out to 1300cc injectors
ive been told i need to use an upgraded fuel pressure regulator like SX's and then others tell me that i dont need to
i know on the PFC you will have to change the injector size as well as the lag time and pulse correction values, but what are the values for those parameters???
where do i get the numbers from for the calculations??
thanks
09-16-01, 07:39 PM
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i found the PFC manual...it says for secondaries you only need to change the injector volume value which would be 1300cc and then the lag time correction value
(1300cc lag time)-.77=+0.__ms
is there any way to calculate this knowing that the 1300cc injectors are just the 850s bored out??
it wouldnt be the same number would it (correction value =0.00)??
someone please bestowest your knowledge......
(1300cc lag time)-.77=+0.__ms
is there any way to calculate this knowing that the 1300cc injectors are just the 850s bored out??
it wouldnt be the same number would it (correction value =0.00)??
someone please bestowest your knowledge......
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06-24-07, 08:15 AM
#6
Sorry for not clarifying, but this is the info I need to know...
i found the PFC manual...it says for secondaries you only need to change the injector volume value which would be 1300cc and then the lag time correction value
(1300cc lag time)-.77=+0.__ms
is there any way to calculate this knowing that the 1300cc injectors are just the 850s bored out??
it wouldnt be the same number would it (correction value =0.00)??
(1300cc lag time)-.77=+0.__ms
is there any way to calculate this knowing that the 1300cc injectors are just the 850s bored out??
it wouldnt be the same number would it (correction value =0.00)??
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06-24-07, 10:55 AM
#8
What I need is a list of equations to plug in "x" values to figure out what my settings should be.
06-24-07, 04:37 PM
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What you want does not exist.
Can you teach someone how to swallow food?
06-24-07, 10:41 PM
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Inherited instinct is the factor, not some formula to give all the answers.
Does that explain it.
06-28-07, 07:05 PM
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As Chuck said, the company (RC Eng?) boring out the injectors will provide the new lag time. Again as Chuck said, the imprecision in lag time and other conversion factors will likely result in small AFR variations. Best to verify you are still ok.
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