smoking and backfiring
08-22-2008, 03:22 PM
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smoking and backfiring
ok i just put a turbo in my r8 about 3 weeks ago.... ive had it tuned right the only thing is i haven't put a new fuel pump and fuel injectors in yet. im wondering if that would cause grey smoke and back firing or what would cause that. how can i fix the backfiring and the smoke. when it smokes it only smokes just a little bit and it when you crank it up and it backfires everytime you let off the gas. sometimes its loud and sometimes it doesnt backfire at all. help me please i need ideas
08-22-2008, 03:24 PM
#2
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who tuned your turbo?
what kind of turbo?
what piggyback are you using; int-x, e-manage?
do you know what your AFR's are at?
what kind of turbo?
what piggyback are you using; int-x, e-manage?
do you know what your AFR's are at?
Who tuned it...what engine management.....
08-22-2008, 03:47 PM
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AFR = Air Fuel Ratio.
08-22-2008, 03:50 PM
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im not exactly sure right now cuz im still in the tuning process becuz i haven't put in my fuel pump and my injectors so right now its just tuned on my stock parts and their maxed out
08-22-2008, 03:53 PM
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what PSI?
the Greddy kit shouldn't be maxxing out your stock parts. The fuel pump and injectors should be able to handle it. (fuel pump definitely, injectors you can choose to swap as many people do)
the Greddy kit shouldn't be maxxing out your stock parts. The fuel pump and injectors should be able to handle it. (fuel pump definitely, injectors you can choose to swap as many people do)
08-22-2008, 03:53 PM
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the smoke is most likely because you're running really rich. (too much fuel)
I'd go back to the tuner with your issues and have him work on your fuel maps a bit.
I'd go back to the tuner with your issues and have him work on your fuel maps a bit.
08-22-2008, 03:57 PM
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**** if you could see the maps you would understand cuz right now im running about 12 and if im not mistaken thats perfect right? and the guys who did the dyno tuning they said they couldn't push my injectors anymore cuz they were maxed
08-22-2008, 04:04 PM
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no 12 psi on the injectors 8.7 max on the turbo but my boost is all over the place from 2cd gear on up to 5th gear and they told me not to push my car past 4th gear past 7 grand becuz i risk detonation since my injectors are already maxed
08-22-2008, 04:07 PM
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the greddy doesn't boost very well over 7.5k rpm
08-22-2008, 04:09 PM
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tuning.
do you have a boos controller?
do you have a boos controller?
08-22-2008, 04:17 PM
#19
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Here are a few threads with LOTS of great info:
Definitive Greddy Turbo Fixes
Emanage works but there are much better options out there such as the AccessPort. (it's not a piggyback, it completely reflashes your OEM pcm) Here is a thread on the emanage in case you stick with it
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/e-manage-ultimate-success-93286/
Definitive Greddy Turbo Fixes
Emanage works but there are much better options out there such as the AccessPort. (it's not a piggyback, it completely reflashes your OEM pcm) Here is a thread on the emanage in case you stick with it
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/e-manage-ultimate-success-93286/
08-23-2008, 01:42 PM
#25
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josh: keep us posted on how this goes. Good luck
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