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Installed Rob Beck turbos - misfiring (with Vishnu)
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10-22-2012, 07:38 AM | #23 |
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I don't know if the v4 is the same as the v5. But I had the same problem when I updated to new firmware and maps after installing my Rbs. I totally forgot all the resets that I had to do that was in the read me file. My car through missfires on all cylinders. So reloaded firmware did all the resets and reloaded map and car ran good. Again not saying this is the problem because I don't know how v4 is but just throwing out an idea.
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07 e92 6spd FBO for now. current
03 z06 402 iron block and a ysi 910whp 756wtq 15psi current 07 335 fbo and meth and rb turbos 470whp 460wtq 17psi 11.7@124 full weight sold. |
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10-22-2012, 09:39 AM | #24 | |
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10-22-2012, 10:05 AM | #25 |
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Thanks for the info, guys!
Strangely there isn't any readme file in the maps' folder that I downloaded. That is why I haven't done any resetting.
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10-22-2012, 10:09 AM | #26 | |
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Quote:
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07 e92 6spd FBO for now. current
03 z06 402 iron block and a ysi 910whp 756wtq 15psi current 07 335 fbo and meth and rb turbos 470whp 460wtq 17psi 11.7@124 full weight sold. |
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10-22-2012, 01:19 PM | #27 |
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You ALWAYS have to follow the same steps when running a new map. They probably forgot to add the reset steps to the upped turbo map folder because so few people were running upped turbos at the time the V4 files were popular and everyone who did knew the steps inside and out. Which brings me to the question: Why the heck aren't you running V5 maps?
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10-22-2012, 01:27 PM | #28 | |
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07 e92 6spd FBO for now. current
03 z06 402 iron block and a ysi 910whp 756wtq 15psi current 07 335 fbo and meth and rb turbos 470whp 460wtq 17psi 11.7@124 full weight sold. |
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10-22-2012, 01:48 PM | #29 | |
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![]() Last edited by secretsquirrel; 10-22-2012 at 01:55 PM. |
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10-22-2012, 01:50 PM | #30 | |
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*** I dont recall too many V4 maps having read me files, most of them were posted here back in the day with instructions. It's been so long. OP you might want to look into a rev 2.5 upgrade, it has many benefits including extra fueling capacity and better tuning.
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10-22-2012, 02:23 PM | #31 |
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the upgrade to 2.5 is cheap, definitely go for it
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10-22-2012, 03:26 PM | #32 |
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+1 rev2 had enough problems fueling stock turbo cars, I'd imagine it to be worse on RBs.
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10-22-2012, 03:29 PM | #33 | |
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The point is like I said before, if plugs coils injectors or vanos don't fix it, not much you can do, short of running cobb with no misfire detection. Maybe a valve cleaning but I doubt it.
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10-22-2012, 03:30 PM | #34 | ||
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Quote:
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07 e92 6spd FBO for now. current
03 z06 402 iron block and a ysi 910whp 756wtq 15psi current 07 335 fbo and meth and rb turbos 470whp 460wtq 17psi 11.7@124 full weight sold. |
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10-23-2012, 06:05 AM | #35 |
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Yesterday was a good day.
I went to a friend of mine and first of all we did the harness upgrade (so that I could run V5 maps): ![]() ![]() ![]() ![]() Then we swapped cylinder 5, 6 spark plugs and coils with the ones of cylinder 1, 2: ![]() ![]() ![]() ![]() The plugs were in great condition: ![]() Then I uploaded new firmware and Rev.2a V5 7-29 Upgraded Turbo MT maps (followed all the instructions in the readme file) and went for a spin. I did 7-8 WOTs and the misfires were gone! I wanted to do some more testing and data logging, but the roads were damp and it was really scary ![]() ![]() ![]() I'm not sure if it wasn't a placebo effect (didn't have my Pbox with me), but the car pulled significantly harder. I'm starting to love my RBs! ![]() It is a bit too early to make conclusions, but most likely the misfires were not hardware related. Most likely it was either V4 fimrware/maps fault or incorrect firmware and map uploading procedure which was a result of absence of readme file.
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10-23-2012, 06:08 AM | #36 | |
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I live overseas and a friend of mine is comming to the US for a few days. I asked Vishnu if they can ship the Rev.2.5 unit to the hotel in time yesterday morning and I am still waiting for an answer...
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10-23-2012, 06:45 AM | #37 |
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Good to hear that your car is running better! You will love your RB's!
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10-23-2012, 07:26 AM | #38 |
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Good to hear man. Glad it is running good.
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07 e92 6spd FBO for now. current
03 z06 402 iron block and a ysi 910whp 756wtq 15psi current 07 335 fbo and meth and rb turbos 470whp 460wtq 17psi 11.7@124 full weight sold. |
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10-23-2012, 10:03 AM | #39 |
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good stuff!
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10-23-2012, 03:24 PM | #40 |
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Bad news, guys... Misfires are back.
![]() I went for some Pbox testing today and I got limp mode on my second run. Lots of limp modes later. Same story - limp mode occures ~50% of all runs when I go over 6.2k rmp when doing WOTs. WTF? Same cylinders even though I swapped the spark plugs and coils... I once even got misfire in cylinder 4. What could be the reasons of misfiring? Did a lot of logs, but don't know what to look for. The car runs stronger than ever, it autotunes to 18 PSI on pump gas! I got some nice 100-200 kmh times. But those f*cking misfires... I start hating my car as I had so many problems with it... ![]()
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Mods: RB turbos, PROcede Rev2.5 V5, BMS DCI, Scoops, Forge DVs, ar design catless DPs, Milltek exhaust system, Helix FMIC, Quaife LSD, VK MotorWerks OC Kit, Bilstein B16 PSS10
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10-23-2012, 03:34 PM | #41 |
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Last time I ran autotuning maps, long time ago, aggression target was too aggressive for some cars (including mine) so I had to turn it down to 1. Give that a try.
Also, have you tried disabling autotuning and just setting a decent boost setting? |
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10-23-2012, 03:40 PM | #42 |
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Yes, I turned autotuning off and set initial boost @ 16 PSI, which is quite conservative for RB turbos. Still went into limp mode.
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10-23-2012, 03:44 PM | #43 |
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It is strange as I didn't have any problems @ 16 PSI with stock turbos.
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10-23-2012, 04:09 PM | #44 | |
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Dzeno had misfires when he got the RBs and that's what I found googling:
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