Sorry for the dumb question guys. Injector duty %age?
09-30-2005, 06:59 PM
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Sorry for the dumb question guys. Injector duty %age? Is there a certain "ms" value that i'm looking for, or is the %age hidden (not necessarily hidden, but i've yet to find it) in the scanning software?
I logged a short nitrous hit (9-68), and the ms on my injector banks went as high as 13.1, vs 12.3 while not spraying..
Wish I knew what that meant. 
I'm curious what %age of duty cycle my injectors are putting out with my 75 dry shot.
See sig for any mod questions... All the important ones are in there.
Thanks in advance for any help.
Matt
I logged a short nitrous hit (9-68), and the ms on my injector banks went as high as 13.1, vs 12.3 while not spraying..
Wish I knew what that meant. I'm curious what %age of duty cycle my injectors are putting out with my 75 dry shot.See sig for any mod questions... All the important ones are in there.
Thanks in advance for any help.
Matt
09-30-2005, 10:48 PM
#3
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https://ls1tech.com/forums/pcm-diagnostics-tuning/287094-read-me-first-tuning-docs-ve-maf-ses-lights-faqs-more-01-31-07-a.html
Injector Duty Cycle Calculations
The Time you see divided by the theoretical limit is your duty cycle (a percentage)
Injector Duty Cycle Calculations
The Time you see divided by the theoretical limit is your duty cycle (a percentage)
10-01-2005, 09:09 AM
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Originally Posted by RedHardSupra
post some logs/bins, we'll take a look at it.
Edit: link removed
Two WOT runs come in around 3:00 from the end. (traffic sucks around here)
Matt
Last edited by Ole1830; 10-01-2005 at 02:33 PM.
10-01-2005, 09:09 AM
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Originally Posted by horist
https://ls1tech.com/forums/showthread.php?t=287094
Injector Duty Cycle Calculations
The Time you see divided by the theoretical limit is your duty cycle (a percentage)
Injector Duty Cycle Calculations
The Time you see divided by the theoretical limit is your duty cycle (a percentage)
10-01-2005, 11:22 AM
#6
the top injector duty is only 68%, but that can be a lie if whoever tuned your car was tweaking the IFR table the wrong way. why would i say that? because the tune is rubbish, you got up to 4% knock any time you get on it, so something is seriously off.
post the bin on which you did this log, maybe we can dig something out.
post the bin on which you did this log, maybe we can dig something out.
10-01-2005, 12:09 PM
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RedHard...look at his sig, a 98 = prone to hyper/false KRSenors. Also the mileage on the car, build up of carbon and pre-igniting hot spots combined with tip in and you get some pretty funky knock... Not to discredit what your trying to say, I am merely throwing another possibility out there.
GL,
Charlie
GL,
Charlie
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10-01-2005, 04:12 PM
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13 ms is 13 ms and even if the ifr table is tweaked and the pe table dialed in for 13.0 or 12.5:1 those numbers are real. The final afr dictates how hard the injectors work. The numbers are real. Anyway you arent clse to the 80% duty cycle everyone likes to go by. Furthermore the duty cycle is a fake number everyone likes to argue all the time about. If you ahve a WB and see you are hitting a 100% dc you would think the car would go lean. I am here to tell you it wont. I have seen 116% duty cycle on my 00 26 lbs injectors and the WB never went lean at 12:1 AFR.
10-01-2005, 04:17 PM
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https://ls1tech.com/forums/showthrea...1&page=1&pp=40
Read this 402 LS2 enignies make 500+ HP with SVO 30's what makes you think 2 lbs makes that much of a difference on a 346
Read this 402 LS2 enignies make 500+ HP with SVO 30's what makes you think 2 lbs makes that much of a difference on a 346
10-01-2005, 04:25 PM
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Well...
The wideband says 11.8-12.1 both NA and on the hose.. The injectors are 36# SVO's (rated @ 41-42 delphi), btw.
Thanks for the info guys.
I can see I got alot to learn.
The wideband says 11.8-12.1 both NA and on the hose.. The injectors are 36# SVO's (rated @ 41-42 delphi), btw.
Thanks for the info guys.
I can see I got alot to learn.
10-02-2005, 01:07 AM
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Originally Posted by HumpinSS
https://ls1tech.com/forums/showthrea...1&page=1&pp=40
Read this 402 LS2 enignies make 500+ HP with SVO 30's what makes you think 2 lbs makes that much of a difference on a 346
Read this 402 LS2 enignies make 500+ HP with SVO 30's what makes you think 2 lbs makes that much of a difference on a 346
https://ls1tech.com/forums/pcm-diagnostics-tuning/326601-ok-settle-svo-injector-ratings.html