Air Fuel Ratio? Install Injectors or not?
#1
Air Fuel Ratio? Install Injectors or not?
Well i've had a zpi stage 1 kit for a few months now, and i barely got my injectors, i had a few issues with oil leaks and boost leaks omg thats a pain fixing and redoing etc.. freaken stupid oil pan lol..
well my question is i barely got my PLX Wideband installed yesterday and turned it on, i have not dynoed this car because i haven't had time or money to do so, and its been running great it basically was a stage 1 minus injectors , i have a e-manage blue with no tune and a profec-e01 boost controller.
I turned it on and it idled around 14 and when i would go WOT it went around 20 daym i'm leaning like crazy, well my question is should i put the rc 550cc injectors in or not, what would exactly happen since i don't have a tune will it at least compensate enough?
The reason i ask this is because i have a 6-7 hour drive that i'm doing tonight, and i've been fixing the oil leaks and boost leaks, and freaken exhaust leaks and installing new parts and i didn't realize how lean i've been. I kno i can try to play with the maps with my profec-e01 but i wouldnt even know where to start on how to tune it.
suggestions and help would be appreciated, and i know i will get it tuned as soon as i get funds to do so.
also i just got the DEI CRYO2 Intercooler Cooling system, would the cooler air effect my a/f even more?
well my question is i barely got my PLX Wideband installed yesterday and turned it on, i have not dynoed this car because i haven't had time or money to do so, and its been running great it basically was a stage 1 minus injectors , i have a e-manage blue with no tune and a profec-e01 boost controller.
I turned it on and it idled around 14 and when i would go WOT it went around 20 daym i'm leaning like crazy, well my question is should i put the rc 550cc injectors in or not, what would exactly happen since i don't have a tune will it at least compensate enough?
The reason i ask this is because i have a 6-7 hour drive that i'm doing tonight, and i've been fixing the oil leaks and boost leaks, and freaken exhaust leaks and installing new parts and i didn't realize how lean i've been. I kno i can try to play with the maps with my profec-e01 but i wouldnt even know where to start on how to tune it.
suggestions and help would be appreciated, and i know i will get it tuned as soon as i get funds to do so.
also i just got the DEI CRYO2 Intercooler Cooling system, would the cooler air effect my a/f even more?
#2
also anybody know if i can upload a map like lets say the basemap from dezods site for the emanage to my profec-e01 and then to the emanage? because i don't have the support tool.
#6
You just popped em in and your seeing 10afr at WOT? Or all the time? Cause I know my gauge does not read lower then 10 (then again, it does not read higher then 17!) so who knows how low it really is!
#7
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Scikotics
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I think I'd rather run rich then lean. 10afr can be 8afr on the AEM if it's 10 flat I can bet it's the same for yours. Running too lean like that will kill your motor fast. Don't risk it, get a tune asap.
#10
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Originally Posted by Mr_Meaty
um...wouldn't 10 or 8 be running rich? so it would be safer then running 17 or 20 like he was, which would be lean?
#11
well thx for the help guys actually my wot would be around 14 from what i tested and i drove fine there, scarry but i made it back in one piece, i had installed the injectors and i was at 10 and the car ran like shiet so i had to change them back to the stocks, is this normal? it was boggy as hell and i did check the wiring etc..
well the great thing is had a dyno run at the show for free, but no tune just a pic and vid of the run i'm gonna get the stuff uploaded but i was suprised how well i did with no tune and injectors at 8psi 220.91 whp!!, but i was losing at least 15hp because of a exhaust leak somewhere that is loud as hell.
what u guys think?
well the great thing is had a dyno run at the show for free, but no tune just a pic and vid of the run i'm gonna get the stuff uploaded but i was suprised how well i did with no tune and injectors at 8psi 220.91 whp!!, but i was losing at least 15hp because of a exhaust leak somewhere that is loud as hell.
what u guys think?
#12
Are you running an open dump off your waste gate? I beleive it's bogging because at 8 psi you need more fuel than your stock injectors can put out. If you are not an experienced tuner you NEED to get it tuned or start looking for a new block. Running 14 at WOT is very bad.
#14
Well, you were bogging AFTER you put in the injectors, right? So your bogging cause you dumping to much fuel.
One of the tunes I got are from a car with smaller injectors, so my car reads in the 10s and it boggs down. My original tune does not bog down. It's the larger injectors on a stage 0 with no tune.
You just have to get tuned. There is no way around it, no other solution, just do it!
One of the tunes I got are from a car with smaller injectors, so my car reads in the 10s and it boggs down. My original tune does not bog down. It's the larger injectors on a stage 0 with no tune.
You just have to get tuned. There is no way around it, no other solution, just do it!
#15
yeah definitely getting it tuned just trying to fine time to get it tuned, u gonna go to HIN Vegas? and finnally meet me Mr. Meaty?, well i hope i can get it tuned this week, only problem is scheduling time, i wish there was a good tuner in my area.
#16
Originally Posted by etsnet
Originally Posted by Mr_Meaty
um...wouldn't 10 or 8 be running rich? so it would be safer then running 17 or 20 like he was, which would be lean?
to the fella that is having problems. get yourself some 440's or so and run a return fuel setup. it's soo much easier to tune when you can adjust fuel pressure. i've seen people that are really good tune a motor on just fuel pressure alone (no engine management) that's if you really don't care about your timing.
#17
I think etsnet clarified in his follup up post that it's safer to run 10afr rich then it is to run 20afr lean.
But yeah, 440s would probably work. I was gonan run 440s when I could not find a tuner, but I did, andI got 650!
I'm gonna try and make it, but it may not be till later in the evening cause I have some place to be at 5:00
But yeah, 440s would probably work. I was gonan run 440s when I could not find a tuner, but I did, andI got 650!
I'm gonna try and make it, but it may not be till later in the evening cause I have some place to be at 5:00
#18
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Originally Posted by Angry_Celi_Guy
i feel sorry for ur engine
You ran 14afr at WOT and went on the dyno. Dude, you are gonna kill your motor. Try to stay out of boost until you can get a tune.
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