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The JB4 thread
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The JB4 thread
It's a market variant, even mk8 golf gti/R that released initially in my area (not sure about now) had the previous ea888.3 (also not sure if they came with the dq381 or dq250) You're right in that it should've been the gen 4 and dq381, but that's how they specced it
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The JB4 thread
Did a 3.97 in the wet, racingline stage 2 now (387hp 533nm) Overall it's good but the gearbox is jerky. Also thinking of going stage 3 (much later), either mamba gtx3071r or eqt vortex xl, concerned about stock rods on stage 3 torque though, and since my climate is hot, I will also need cooling to go with it...
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The JB4 thread
used a dragy, racingline stage 1 quotes ~360hp? even a rough estimate using speedo is fine, i wonder if the extra 50 hp in stage 1 would make it break 3s 0-60 i am yet to measure a 100-200, I probably won't though.
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The JB4 thread
2022 is38, dq250 6 speed and gen 3, market variant didn't come with the new continental turbo, what are your 0-60 and 100-200 times if you could provide them I'm curious.
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ShadoEcks started following The JB4 thread
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The JB4 thread
Hello, 2022 280 dq250 owner here, Been running JB4 for 2 years and just went to a racingline flash to answer your questions: 1. I haven't removed mine since installation and i haven't had any issues, at least for me, but they made me sign a notice that there were additional wiring/wires on my 2nd service, so i would advise removing it before servicing. 2. it reads the data from the obd2 so any safety features i assume would be hampered, i would leave it plugged in for best performance. 3. our gearboxes are different so it may differ but its enough even with the jb4, TCU tune would be safer when adding a downpipe and a remap. 4. the only disadvantage is always running highest quality fuel and that its not as smooth power delivery as a full-on flash, below 3.5k rpm it is perfectly normal it's only when you get on boost is where you'd feel it 5. no slippage for me but i had to cut boost by 50% when shifting because it would sometimes overboost if floored at high rpms and shifting at redline (auto) which would revert it to a safety map or map 0 although a remap is smoother, the performance is pretty close, jb4 map 6 ran 4.49 0-60 racingline stage 1 + TCU ran 4.38 Good luck.
ShadoEcks
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