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      03-24-2019, 07:43 PM   #67
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Something certainly calibrated incorrectly would be our first thought..

Seems downright dangerous to accelerate the engine without your foot on the gas.. good thing the rev limiter was there!

This is why we strongly recommend seeking software from a well established and validated brand. Each time you shifted the engine speed was abruptly reduced.. and then 20 minutes later a spun hub...
Certainly a valid concern, but the same way 100% pedal input doesn't necessarily equate to 100% (open) throttle positioning... it's possible that the engine revolution was on the rise as the pedal input was lifted. Thus, pedal input value = 0 and higher values were recorded for engine revolution.

For OP's case, however, this looks to be the byproduct of poor shifting... 4th gear 7358 RPM -> downshift to 3rd (rise to 7374 rpm) -> upshift to 4th -> upshift to 5th

Plus, I highly doubt F80Paul doesn't know what he's doing with S55 6MT tuning. His client currently holds the 1/4 mile WR for 6 MT with stock turbos.
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Last edited by FriedPiston; 03-24-2019 at 07:51 PM.. Reason: added better screenshot
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      03-24-2019, 07:47 PM   #68
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Solid point about the RPM raising between shifts. That would be a harsh shock to the engine/transmission between each gear. Impact level shock each time.

Maybe some of the reputable tuners can offer a hooligan safe tune for those with a DSG. Lower RPM redline, since the power drops off anyways. Then make a softer shifting program by adjusting boost and throttle near shift points.

Last edited by overlook637; 03-24-2019 at 08:30 PM..
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      03-24-2019, 08:23 PM   #69
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Good catch on the Log

I don't think that is tune related.......I would venture to say F80 Paul probably has more tunes out there than most shops.

Are you putting the clutch in before fully lifting off the throttle that will cause the rpm to spike from the clutch load being released then as you lift off the throttle the rpms are still going up.

You can make this happen if the shift is not performed properly again this is just my Two cents.......Paul is not going to make a cars rpm continue to increase with the throttle off.
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      03-24-2019, 08:31 PM   #70
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Actually come to think of it, I had this issue come up before back when i first got BM3. I have attached the emails i had back with Halim and it was fixed with his update. And no, i wouldn't be pressing the clutch in before shifts. Hasn't happened since after the updated map in 2016. The RPM jumping just popped back up after switching to full E85.

Quote:
Originally Posted by TKT2SPEED View Post
Good catch on the Log

I don't think that is tune related.......I would venture to say F80 Paul probably has more tunes out there than most shops.

Are you putting the clutch in before fully lifting off the throttle that will cause the rpm to spike from the clutch load being released then as you lift off the throttle the rpms are still going up.

You can make this happen if the shift is not performed properly again this is just my Two cents.......Paul is not going to make a cars rpm continue to increase with the throttle off.
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Last edited by climax_e92; 03-24-2019 at 08:36 PM..
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      03-25-2019, 01:35 AM   #71
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100% pedal position doesn't always equate to 100% throttle opening, but 0 percent throttle shouldn't cause a 700RPM rise in engine speed.

Wasn't sure who tuned it, have heard good things about him.
Yes, but even at pedal lift, throttle remained at 100% opened in 4th gear, then down to 25% right before a downshift to 3rd... meanwhile, the car continued to cruise at 121 mph throughout this time point. I can see this being a true issue (maybe 6MT rev matching?), but would definitely help to see more BM3 6MT log samples to draw a conclusion.
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      03-25-2019, 09:17 AM   #72
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Originally Posted by nars3000 View Post
Yes, but even at pedal lift, throttle remained at 100% opened in 4th gear, then down to 25% right before a downshift to 3rd... meanwhile, the car continued to cruise at 121 mph throughout this time point. I can see this being a true issue (maybe 6MT rev matching?), but would definitely help to see more BM3 6MT log samples to draw a conclusion.
These are the only other 3 logs I have. Logs were done 3 days prior to the SCH. Yeah I am in no way saying the rpms jump had anything to do with the SCH. I would just like to get to the bottom of this issue if it's a problem..

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea902f

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea9030

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea9031
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      03-26-2019, 03:52 PM   #73
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Quote:
Originally Posted by climax_e92 View Post
These are the only other 3 logs I have. Logs were done 3 days prior to the SCH. Yeah I am in no way saying the rpms jump had anything to do with the SCH. I would just like to get to the bottom of this issue if it's a problem..

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea902f

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea9030

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea9031
That likely had zero cause in SCH.
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      03-26-2019, 04:11 PM   #74
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Quote:
Originally Posted by Harpinc View Post
Quote:
Originally Posted by climax_e92 View Post
These are the only other 3 logs I have. Logs were done 3 days prior to the SCH. Yeah I am in no way saying the rpms jump had anything to do with the SCH. I would just like to get to the bottom of this issue if it's a problem..

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea902f

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea9030

http://www.bootmod3.net/log?id=5c8c74aeae729b3511ea9031
That likely had zero cause in SCH.
Yeah I'm in no way saying the rpm issue had anything to do with the sch, but would still like to address it none the less. Paul and Halim did get together about it and sent me an updated. Will report back if the issue has been fixed when i receive the car, thanks guys.
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      03-26-2019, 04:36 PM   #75
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Sorry to see this as I spun mine too..

And I must add.. Anyone that is on here that says "driving the car too hard" is pretty much in a idiotic state of mind. These cars are designed to be driven and no Porsche that I ever had broke under normal driving conditions. Hell, none of the LS based cars I've owned have either. If my 830 rwhp LSA could run 1/4 mile in 9.4 @146 and do highway pulls and anything else you want to do and not break. It also drove like stock out of boost.
My M3 should be able to be driven to the extreme at the RR track without issue.. These aren't babies, they're cars.. Treat them as such..
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      03-26-2019, 05:03 PM   #76
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Dang that sucks, I'm super cautious driving now since hearing about all these spun hubs. Guess I'll need to save for the upgrade. Or maybe just ride it out and swap in an f10 v8 when it breaks
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      03-26-2019, 05:14 PM   #77
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Quote:
Originally Posted by Harpinc View Post
Sorry to see this as I spun mine too..

And I must add.. Anyone that is on here that says "driving the car too hard" is pretty much in a idiotic state of mind. These cars are designed to be driven and no Porsche that I ever had broke under normal driving conditions. Hell, none of the LS based cars I've owned have either. If my 830 rwhp LSA could run 1/4 mile in 9.4 @146 and do highway pulls and anything else you want to do and not break. It also drove like stock out of boost.
My M3 should be able to be driven to the extreme at the RR track without issue.. These aren't babies, they're cars.. Treat them as such..
BMW does not say that you can not drive it like you stole it but if you break it there is no warranty. These SCH threads are becoming tiresome, there are plenty of examples of F8x being (ab)used on the track without a single issue. When you buy a STREET car and you abuse it you pay for it, it is really as simple as that. The M4 GTS and GT4 is a track car. You can always go for the 911 GT2 RS or buy 4x F82s. First world problems.
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      03-26-2019, 05:16 PM   #78
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lol creating statistics without concrete data
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      03-26-2019, 06:33 PM   #79
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lol creating statistics without concrete data
Just like any good marketing team.
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      03-26-2019, 11:13 PM   #80
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Quote:
Originally Posted by Harpinc View Post
Sorry to see this as I spun mine too..

And I must add.. Anyone that is on here that says "driving the car too hard" is pretty much in a idiotic state of mind. These cars are designed to be driven and no Porsche that I ever had broke under normal driving conditions. Hell, none of the LS based cars I've owned have either. If my 830 rwhp LSA could run 1/4 mile in 9.4 @146 and do highway pulls and anything else you want to do and not break. It also drove like stock out of boost.
My M3 should be able to be driven to the extreme at the RR track without issue.. These aren't babies, they're cars.. Treat them as such..
Yeah... i might not have driven my car hard enough hahah. It's my daily but i only drive like 18 miles round trip 5 days a week. By the time i get to work in the morning, my oil temp isn't even fully warmed up yet. wonder if all the short distance travel had anything to do with. :
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      03-29-2019, 09:04 PM   #81
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Update*

Just got word that my car is finally back up and running! I was told it runs like butter with a very smooth idle. But I won't be picking it up until next week because we are still waiting for the charge pipes to come back from getting a polish finish.

Thanks for everyone's help and input throughout my ordeal. It is greatly appreciated.
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      03-29-2019, 09:55 PM   #82
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Quote:
Originally Posted by climax_e92 View Post
Update*

Just got word that my car is finally back up and running! I was told it runs like butter with a very smooth idle. But I won't be picking it up until next week because we are still waiting for the charge pipes to come back from getting a polish finish.

Thanks for everyone's help and input throughout my ordeal. It is greatly appreciated.
So was this fixed by any warranty or just out of pocket?

Edit: just saw that you took this to autotalent. So obviously out of pocket.

What were the actual repairs that needed to be done?
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      03-30-2019, 01:54 AM   #83
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Quote:
Originally Posted by climax_e92 View Post
Already posted this on thr bm3 fb page.

*Long vent post warning*

So it has finally happened to me.... the dreaded crank hub failure... hopefully it's not too bad. Thank you to Justin Shih for helping out a dying man. Honestly was more worried about what my gf was gonna say rather than the actual problem. Luckily she was understanding and didn't tear me a new one..

Anyway to answer the usual questions.... M4 is a MY2016 purchased new. 6MT 24,700 miles. Tuned with bms stage 1 at 1k, then switched to bm3 stage 2 December 2016 at around 8k. We took it a little over 140mph, and car was driving fine. Maybe about 20 mins later driving normal speeds about 50mph cruising, got the drivetrain malfunction light. Drove it straight to my buddy's house 2 mins away and parked it. Drives fine just no boost. Starting the car took a couple seconds to start as well.

Recently got a custom e85 tune, and i already knew what could happen, was just hoping it wouldn't. Anyway my choice is to either take it to the dealer, where i know they would take a month just to tell me my warranty is voided hahaha. So I'll most likely be taking it to Justin at Auto Talent and get everything fixed with the Vargas VVT spline lock and hub ca[IMG]undefined[/IMG]pture and call it a day.

I'll be taking a day or two to figure out what to do. But most likely just drop it off at AutoTalent before i go on vacation to NYC.

Edit* this is the log about 20 mins prior to the SCH. If anyone knows how to read it and can shed some light on what they see, i would greatly appreciate, thank you.
http://www.bootmod3.net/log?id=5c905b90c090c66c2bac8323
Deadass the same shit happened to me was speeding bout an hour later engine light pops up and my crank hub is spun went to maximum psi got it fixed thankfully nothing else was wrong. Mine spun at about 4-5k miles 2018 m4
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      03-30-2019, 02:11 AM   #84
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Quote:
Originally Posted by climax_e92 View Post
Update*

Just got word that my car is finally back up and running! I was told it runs like butter with a very smooth idle. But I won't be picking it up until next week because we are still waiting for the charge pipes to come back from getting a polish finish.

Thanks for everyone's help and input throughout my ordeal. It is greatly appreciated.
Super interested in the cost of the instal. I’m in Santa Clarita too changed. Lot on my car and of course always scared of the sch. Valencia bmw is pretty cool about mods I’ve noticed but I’m sure not that cool lol. I would probably take it to just too he is doing some other work for me.
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      03-30-2019, 11:41 PM   #85
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Quote:
Originally Posted by jpy1980 View Post
Quote:
Originally Posted by climax_e92 View Post
Update*

Just got word that my car is finally back up and running! I was told it runs like butter with a very smooth idle. But I won't be picking it up until next week because we are still waiting for the charge pipes to come back from getting a polish finish.

Thanks for everyone's help and input throughout my ordeal. It is greatly appreciated.
So was this fixed by any warranty or just out of pocket?

Edit: just saw that you took this to autotalent. So obviously out of pocket.

What were the actual repairs that needed to be done?
Hey i actually ended up taking it somewhere else. I will post a review in a few weeks. Will be picking it up early next week before i leave for vacation.
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      03-30-2019, 11:47 PM   #86
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Quote:
Originally Posted by Dasd329 View Post
Quote:
Originally Posted by climax_e92 View Post
Update*

Just got word that my car is finally back up and running! I was told it runs like butter with a very smooth idle. But I won't be picking it up until next week because we are still waiting for the charge pipes to come back from getting a polish finish.

Thanks for everyone's help and input throughout my ordeal. It is greatly appreciated.
Super interested in the cost of the instal. I’m in Santa Clarita too changed. Lot on my car and of course always scared of the sch. Valencia bmw is pretty cool about mods I’ve noticed but I’m sure not that cool lol. I would probably take it to just too he is doing some other work for me.
I can't really comment on the price. It would depend on what you would need done, and which brand you go with. VTT, Gintani or Maximum PSI. I ended up going with Max PSI. Coming from the N54 platform, I didn't hear too many great things from VTT so i decided not to use their fix.
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      04-10-2019, 11:17 PM   #87
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Full review of about the car after being fixed. Thanks again for everyone's input.
https://f80.bimmerpost.com/forums/sh...0#post24639080
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      04-11-2019, 12:03 AM   #88
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Congrat getting your car back running. SSR did my crank hub fix too, I went with gintani over max psi. Just curious why you picked max psi over gintani fix? I went with gintani because they are based in LA and it's one piece solution.
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