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06-20-2021, 07:35 PM | #1 |
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FBO STG 2+ N54 Feels Slow? Logs Attatched
Hi all, have been running FBO on 93 with 7.5" intercooler, catless downpipes, etc. on MHD stage 2+ V9.0 for a few weeks now.
My car feels slow! (Well, not that slow, but not as fast as it should!) Also feels like it has a ton of lag, I've always had this issue with the car but still not sure if it's my car, or just the way these are. Takes 500RPM to hit 13psi, and more to hit full target. I've been reading on here that you guys usually have serious traction issues in 1st / 2nd / 3rd FBO, mine (6MT) struggles to break the tires loose even in 1st! It used to break them in first, and sometimes in second. Maybe it's the hotter weather here, running 245/35/18 Conti Extremecontact Sport summers on all four corners. Also noticed that while I hit target no problem at first, during the taper I'm a little more than 1PSI off on higher revs. Note, as soon as I installed my downpipes I noticed that my AFR oscilates a lot from 14.7-15s during cruising, seems to go away on WOT though. Take a look at my logs and let me know what you guys think! P.S. 1 step colder plugs gapped to .022 have 5k, coils have 12k, 6 index 12 injectors have 12k, 93 pump gas. HPFP and turbos have about 20k Thanks! 3rd gear pull from 2500RPM: https://datazap.me/u/apex6589/3-4-ge...data=3-4-22-28 URL incase link doesn't work: (https://datazap.me/u/apex6589/3-4-ge...data=3-4-22-28) 2nd gear pull from 2500RPM: [URL="https://datazap.me/u/apex6589/2-3-4-gear-pull-2500rpm-mhd-stg-2-v9?log=0&data=3-22"] URL incase link doesn't work: (https://datazap.me/u/apex6589/2-3-4-...og=0&data=3-22) |
06-21-2021, 10:44 PM | #3 | |
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Wow, didn't see how bad the timing corrections were on the first log. What do you guys think about that one? IATs look good to me, new coils? I was having this problem last year on stage 1 but new plugs / the intercooler fixed it and never had more than one cylinder correcting. |
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06-22-2021, 08:48 PM | #5 |
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06-22-2021, 10:22 PM | #6 |
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06-22-2021, 10:23 PM | #7 |
C2H5OH
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STFT #2 should give you some ideas.
I would look at bank 2 O2 and make sure it's not obstructed in the bung ... many of the ebay brands have shit fitment and welding slag all over. yes it matters. |
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06-23-2021, 11:09 PM | #8 |
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Hmm, onto something! When I first changed my downpipes, I noticed some misfiring on cold starts and no LTFT readings at all (usually stuck on 0 or .8 all the time) I figured it was something with the O2s but reflashed and the problems seem to have went away. I think this is causing my AFR oscillations when cruising as well. You think it may possibly be obstructed? Any way to properly check O2 function to make sure I didn't bend the wires too much or break them?
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06-28-2021, 06:03 PM | #9 |
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UPDATE: switched to Shell 93 VPower all the time, took another log. Serious timing corrections across all cylinders! don't know what to be causing this, it was a hot day today, but my fmic seems to be keeping iats at bay, they didn't really hit any higher than the low hundreds.
Take a look at my log: https://datazap.me/u/apex6589/stg-2-...&data=3-22 |
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07-07-2021, 11:14 AM | #10 | |
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boost, fbo, mhd, slow, stg 2+ |
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