Forced Induction Custom FI Setup Questions

turbo backfires

Old 08-31-2012, 06:23 PM
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Unhappy turbo backfires

Hello pep I have a b20vtec itr lsd trann
y and I have a brand new t3t4 turbo
Tha backfires a lot on hig rpms I had a used turbo before and never had
if u guys know something bout it reply I wanna get it running right tanks
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Old 09-04-2012, 10:32 PM
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how much more boost is it making? Maybe you are blowing the exhaust valve open at over boost!!
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Old 09-04-2012, 11:01 PM
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I don't know how much boost....over boost? wich inlet I use for the waste gate? I have it on the bottom one
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Old 09-05-2012, 09:46 PM
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sorry, but you need to give a better description of your setup. I simply commented on your condition due to what you said, which wasn't much. do you have a pic of your setup? I am new here and havn't any experience with turbos at all . but plan a build this winter. just gathering information and learning all i can. All things equal,you said you had a turbo and it ran good. then you changed the turbo and it backfires, so maybe the turbo is making more boost and is pushing the exhaust valve open? are the waste gates working?
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Old 09-06-2012, 04:55 PM
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I did check my wastegate and it opens wen im parkt it very opens is tha normal and I took my waste gate apart and looks like it has a week spring it came with 2extra springs bout my pic..can u check on youtube type jdmrafael yes have a dayli
Ej1 and my bb ej8
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Old 09-16-2012, 01:42 AM
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I fix it it was my msd ignition system put everything back with my ignition coil and hi works fine tanks pep
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