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04-30-2021, 12:42 PM | #15 | |
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Got it sorted out for the most part, now just need a 3" overpipe all the way back to exhaust or a 3" tapered to a 2.5", my current set up JDL 3" dp connects to a 2.5" OP and has a hard change at the flange so its restricting air flow |
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04-30-2021, 01:21 PM | #16 |
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https://datazap.me/u/limitlessbrz/wo...ta=13-14-15-30
Uploaded a WOT 3rd gear log, We think that the 3" downpipe sharp change to 2.5" Op is hurting air flowing causing the ECU to pull timing |
04-30-2021, 09:26 PM | #17 |
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well you should try to have a less atrocious airflow scaling and tune overall, since the ecu is constantly pulling out fuel while you WOT with boost
From the whole I see there i would say Change tuner lol but you won't do it and we can't help anyway because only your tuner can modify it |
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04-30-2021, 10:15 PM | #18 | |
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05-01-2021, 11:25 AM | #19 | |
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Before your pull your LTFT is near 20% indicating idle and cruise MAF scaling is not dialed in well. During the pull, you start rich then lean out on the top end, it swings from ~4% too rich to ~5% lean; nearly a 10% variation in fueling during your pull. Your MAF g/s curve is also bumpy, especially on the top end, and contributes to why your fueling is off. Your tuner [Delicious] should have you do much more low end MAF scaling before having you do these pulls. The car does not look ready to be driven hard yet. Just my $0.02. Your current MAF scaling will be causing more of an effect on your drivability than your 2.5" overpipe. You can run a stock catback on a turbo and not suffer from such issues. You won't make the best power but you shouldn't feel anything along the level of thinking the car is pulling timing. Regarding timing, you are actually running a couple degrees more on the top end than the low end, so over time it is adding timing, not taking it out. You did have knock event early in the pull but IAM remained 1. Delicious will want to look at that area but please have them address your MAF scaling first. |
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05-01-2021, 12:58 PM | #20 | |
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05-01-2021, 01:39 PM | #21 | |
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The main facts around every Delicious tune not made by a guy named Zach that i've lately seen , are that those amount of fuel trims (both on CL and OL states) are there because of a specific reason In the same time, those trims that linger even in final releases say a lot about how the tuner and his work The introduction of closed loop fuel control by ecutek in racerom 10 made things different by the tuner side It can help a lot and make tuners feel relieved that nothing will happen because of bad MAF/SD scaling, but it can be a double edged knife hope OP will sort it out anyway |
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05-03-2021, 11:42 PM | #22 |
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Limitless , keep us updated :-)
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05-04-2021, 01:04 AM | #23 |
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05-04-2021, 09:20 AM | #24 | |
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@BRZoomTX is spot on
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Turbo FR-S Build - Build Thread
JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block |
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05-04-2021, 10:17 AM | #25 | |
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i think OP use 93oct? |
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05-04-2021, 10:17 AM | #26 |
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93 is the only high octane available in Vermont, no E85 in the state
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Turbo FR-S Build - Build Thread
JDL EL Recirc manifold, Boostlab BL58x Turbo w/ T51R, 17x9 ARC-8, IAG block |
05-05-2021, 10:01 PM | #27 |
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I’m only on 91, e85 rare around here.
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05-05-2021, 11:22 PM | #28 |
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Ok, you won't remove those amount of knock just going 3" turbo back
Piss fuel will require more DI or timings will always be low and the car lazy as f*** |
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