Ultimate Spun Crank Hub (SCH) Poll: ALL Members Please Vote!

FriedPiston · 04-29-2019, 11:56 AM

Quote:

Originally Posted by ShoNufff

Has anyone checked to see if some of these votes are legit? I see two people on here that are claiming they were pushing 550+ whp and had SCH failures but don't even own an F series better yet even post on here at all.

2014-2015 | 6MT | Modified 550+ whp | SCH Failure
adisz, Weechard

Quote:

Originally Posted by ShoNufff

How can we get an accurate reading of how many have spun?

There's no way to enforce honesty or accuracy like with any other survey in general.

qbrother804 · 05-02-2019, 01:32 AM

I don't know if my question is crank hub. My car m3 has been set at 1.8bar before. but know it will beat over 2bar. is it may be?

pitkin_g · 05-02-2019, 03:46 PM

Quote:

Originally Posted by nars3000

Car #1

2. Full E85 fuel was not cycled out with regular gasoline for close to 12 months.

3. Injector gave out after switching to ACN91; car was driven with E85 tune while on regular gas for less than 5 miles.

nars3000 , I actually encountered a similar issue. My E85 map failed to switch to 91 and within few miles I got a drivetrain malfunction with Injector Shut off, and misfire on cylinder 6. I let the car sit overnight, solved the flashing issue, and flashed back to stock, and the car started up fine the next day. No issues so far for the past month.
I also was thinking to get into injector replacement but so far so good. I am wondering if there is a way to confirm if no damage was done to injector/spark plug/or else.

FriedPiston · 05-02-2019, 03:56 PM

Quote:

Originally Posted by pitkin_g

nars3000 , I actually encountered a similar issue. My E85 map failed to switch to 91 and within few miles I got a drivetrain malfunction with Injector Shut off, and misfire on cylinder 6. I let the car sit overnight, solved the flashing issue, and flashed back to stock, and the car started up fine the next day. No issues so far for the past month.
I also was thinking to get into injector replacement but so far so good. I am wondering if there is a way to confirm if no damage was done to injector/spark plug/or else.

Perhaps you missed my response in the other thread. See: https://f80.bimmerpost.com/forums/sh...23&postcount=5

harry$ · 05-02-2019, 07:06 PM

Quote:

Originally Posted by nars3000

Perhaps you missed my response in the other thread. See: https://f80.bimmerpost.com/forums/sh...23&postcount=5

How do you call up the injector functionality test through ISTA ?

FriedPiston · 05-02-2019, 07:37 PM

Quote:

Originally Posted by harry$

How do you call up the injector functionality test through ISTA ?

Refer to post #7 in the same thread.

https://f80.bimmerpost.com/forums/sh...84&postcount=7

pitkin_g · 05-02-2019, 10:09 PM

Quote:

Originally Posted by nars3000

Perhaps you missed my response in the other thread. See: https://f80.bimmerpost.com/forums/sh...23&postcount=5

Will look into it. Makes sense. Thanks

ruley74 · 05-15-2019, 04:26 AM

So on face value of the pole results, failures are roughly (% per power level of total reported per power level)

2.5% of stock cars.
7.8% of lightly tuned cars (450-500)
20.8% of 500-550 cars
28.5% of 550+ cars

CanAutM3 · 05-15-2019, 05:21 AM

Quote:

Originally Posted by ruley74

So on face value of the pole results, failures are roughly....

2.5% of stock cars.
7.8% of lightly tuned cars (450-500)
20.8% of 500-550 cars
28.5% of 550+ cars

I am not sure your math is right, the figures do not add up to 100%...

ruley74 · 05-15-2019, 05:29 AM

Quote:

Originally Posted by CanAutM3

I am not sure your math is right, the figures do not add up to 100%...

haha... as it shouldn't...

I did the numbers in individual power ratings... and rounded a bit

i.e. out of 100% of the stock cars 2.5% reported a spun hub... 97.5% no spiny spiny etc...

Level of risk related to level of tune is what I was interested in, the argument keeps going on regards SCH and tuning, I was curious on the poll numbers.

CanAutM3 · 05-15-2019, 05:58 AM

Quote:

Originally Posted by ruley74

haha... as it shouldn't...

I did the numbers in individual power ratings... and rounded a bit

i.e. out of 100% of the stock cars 2.5% reported a spun hub... 97.5% no spiny spiny etc...

Level of risk related to level of tune is what I was interested in, the argument keeps going on regards SCH and tuning, I was curious on the poll numbers.

Then the numbers don’t mean squat. More than likely, only a very small minority of stock owners/members that did not have issues voted on the poll. The probability of spinning the crank hub on a stock car is far less than 2.5%.

ruley74 · 05-15-2019, 08:44 PM

Quote:

Originally Posted by CanAutM3

Then the numbers don’t mean squat. More than likely, only a very small minority of stock owners/members that did not have issues voted on the poll. The probability of spinning the crank hub on a stock car is far less than 2.5%.

Stock car voting was the highest out of all the power levels, and yep it probably is less... there is a poll you look at the numbers in the poll. it's just something to look at

drgmt · 05-15-2019, 09:59 PM

Quote:

Originally Posted by ruley74

Quote:

Originally Posted by CanAutM3

Then the numbers don’t mean squat. More than likely, only a very small minority of stock owners/members that did not have issues voted on the poll. The probability of spinning the crank hub on a stock car is far less than 2.5%.

Stock car voting was the highest out of all the power levels, and yep it probably is less... there is a poll you look at the numbers in the poll. it's just something to look at

You are three times more likely to spin your hub with a light tune than stock.

Association or causation? Probably abit of both.

M 4 FUN · 05-16-2019, 12:20 AM

That's why i will set torque to the same as a GTS on my stage2 BM3 tune.

ruley74 · 05-16-2019, 01:40 AM

I ran the VF stage one for a year and 35000kms and was not worried because I have a bit of mechanical sympathy and don't drive like a spastic, I like to drive fast... not thrash a car, two very different things.

On a side note I've rolled back to Alex's GTS tune, it's just so smooth and drivable, for driving fast in the hills and DD duties it's awesome... and a possible reduction in risk... maybe. So far about 50000kms done with a tune in my car of some type.

ruley74 · 05-16-2019, 01:42 AM

Quote:

Originally Posted by drgmt

You are three times more likely to spin your hub with a light tune than stock.

Association or causation? Probably abit of both.

Funny, I think of it as still >90% you're fine

Bmwlmr99 · 05-16-2019, 01:43 AM

62,000 tuned stage 2...and stage 1...no Spun hub...a scare tactic...have to do something stupid to spin your hub...I run the hell out of my car. No Issues

FSociety · 05-19-2019, 11:37 AM

Quote:

Originally Posted by Bmwlmr99

62,000 tuned stage 2...and stage 1...no Spun hub...a scare tactic...have to do something stupid to spin your hub...I run the hell out of my car. No Issues

Know a few 500whp-700whp cars right now who also drive fast but not thrashing the car on stock hub.

All running from BM3 Stage1 up to Custom Full E85 Stock Turbos and even Upgraded Turbos.

Bmwlmr99 · 05-20-2019, 12:38 AM

awesome, tell the truth!...

M 4 FUN · 05-20-2019, 11:44 AM

Just a thought: Why is everyone talking about horsepower instead of torque? Isn't it the torque that is the problem?

Does anyone know if any GTS's has spun a crankhub?

Johnny.

_BSMM5 · 07-12-2019, 12:49 PM

Quote:

Originally Posted by M 4 FUN

Just a thought: Why is everyone talking about horsepower instead of torque? Isn't it the torque that is the problem?

Does anyone know if any GTS's has spun a crankhub?

Johnny.

You are correct, however the torque generally follows the horsepower on these cars. Dyno readings show torque and HP to follow similar trends in terms of peak values.

I.e. You wil not find a car that is running 550+ HP with below 500 torque. At least as far as I know. (which may not be much

)

FSociety · 07-12-2019, 03:04 PM

Quote:

Originally Posted by M 4 FUN

Just a thought: Why is everyone talking about horsepower instead of torque? Isn't it the torque that is the problem?

Does anyone know if any GTS's has spun a crankhub?

Johnny.

Yes they have

View Poll Results: Ultimate S55 Spun Crank Hub Poll -- Please vote
2014-2015 \| 6MT \| Stock \| No SCH	103	6.53%
2014-2015 \| 6MT \| Stock \| SCH Failure	6	0.38%
2014-2015 \| 6MT \| Modified 450-500 whp \| No SCH	37	2.34%
2014-2015 \| 6MT \| Modified 450-500 whp \| SCH Failure	10	0.63%
2014-2015 \| 6MT \| Modified 500-550 whp \| No SCH	20	1.27%
2014-2015 \| 6MT \| Modified 500-550 whp \| SCH Failure	6	0.38%
2014-2015 \| 6MT \| Modified 550+ whp \| No SCH	10	0.63%
2014-2015 \| 6MT \| Modified 550+ whp \| SCH Failure	5	0.32%
2014-2015 \| DCT \| Stock \| No SCH	151	9.57%
2014-2015 \| DCT \| Stock \| SCH Failure	3	0.19%
2014-2015 \| DCT \| Modified 450-500 whp \| No SCH	100	6.34%
2014-2015 \| DCT \| Modified 450-500 whp \| SCH Failure	11	0.70%
2014-2015 \| DCT \| Modified 500-550 whp \| No SCH	46	2.92%
2014-2015 \| DCT \| Modified 500-550 whp \| SCH Failure	8	0.51%
2014-2015 \| DCT \| Modified 550+ whp \| No SCH	25	1.58%
2014-2015 \| DCT \| Modified 550+ whp \| SCH Failure	7	0.44%
2016 \| 6MT \| Stock \| No SCH	57	3.61%
2016 \| 6MT \| Stock \| SCH Failure	3	0.19%
2016 \| 6MT \| Modified 450-500 whp \| No SCH	26	1.65%
2016 \| 6MT \| Modified 450-500 whp \| SCH Failure	3	0.19%
2016 \| 6MT \| Modified 500-550 whp \| No SCH	14	0.89%
2016 \| 6MT \| Modified 500-550 whp \| SCH Failure	4	0.25%
2016 \| 6MT \| Modified 550+ whp \| No SCH	5	0.32%
2016 \| 6MT \| Modified 550+ whp \| SCH Failure	2	0.13%
2016 \| 6MT Comp Package \| Stock \| No SCH	9	0.57%
2016 \| 6MT Comp Package \| Stock \| SCH Failure	1	0.06%
2016 \| 6MT Comp Package \| Modified 450-500 whp \| No SCH	0	0%
2016 \| 6MT Comp Package \| Modified 450-500 whp \| SCH Failure	2	0.13%
2016 \| 6MT Comp Package \| Modified 500-550 whp \| No SCH	2	0.13%
2016 \| 6MT Comp Package \| Modified 500-550 whp \| SCH Failure	0	0%
2016 \| 6MT Comp Package \| Modified 550+ whp \| No SCH	1	0.06%
2016 \| 6MT Comp Package \| Modified 550+ whp \| SCH Failure	1	0.06%
2016 \| DCT \| Stock \| No SCH	113	7.16%
2016 \| DCT \| Stock \| SCH Failure	2	0.13%
2016 \| DCT \| Modified 450-500 whp \| No SCH	45	2.85%
2016 \| DCT \| Modified 450-500 whp \| SCH Failure	2	0.13%
2016 \| DCT \| Modified 500-550 whp \| No SCH	27	1.71%
2016 \| DCT \| Modified 500-550 whp \| SCH Failure	0	0%
2016 \| DCT \| Modified 550+ whp \| No SCH	8	0.51%
2016 \| DCT \| Modified 550+ whp \| SCH Failure	3	0.19%
2016 \| DCT Comp Package \| Stock \| No SCH	19	1.20%
2016 \| DCT Comp Package \| Stock \| SCH Failure	0	0%
2016 \| DCT Comp Package \| Modified 450-500 whp \| No SCH	5	0.32%
2016 \| DCT Comp Package \| Modified 450-500 whp \| SCH Failure	0	0%
2016 \| DCT Comp Package \| Modified 500-550 whp \| No SCH	5	0.32%
2016 \| DCT Comp Package \| Modified 500-550 whp \| SCH Failure	3	0.19%
2016 \| DCT Comp Package \| Modified 550+ whp \| No SCH	3	0.19%
2016 \| DCT Comp Package \| Modified 550+ whp \| SCH Failure	2	0.13%
2017 \| 6MT \| Stock \| No SCH	17	1.08%
2017 \| 6MT \| Stock \| SCH Failure	0	0%
2017 \| 6MT \| Modified 450-500 whp \| No SCH	7	0.44%
2017 \| 6MT \| Modified 450-500 whp \| SCH Failure	1	0.06%
2017 \| 6MT \| Modified 500-550 whp \| No SCH	6	0.38%
2017 \| 6MT \| Modified 500-550 whp \| SCH Failure	0	0%
2017 \| 6MT \| Modified 550+ whp \| No SCH	1	0.06%
2017 \| 6MT \| Modified 550+ whp \| SCH Failure	1	0.06%
2017 \| 6MT Comp Package \| Stock \| No SCH	22	1.39%
2017 \| 6MT Comp Package \| Stock \| SCH Failure	1	0.06%
2017 \| 6MT Comp Package \| Modified 450-500 whp \| No SCH	4	0.25%
2017 \| 6MT Comp Package \| Modified 450-500 whp \| SCH Failure	2	0.13%
2017 \| 6MT Comp Package \| Modified 500-550 whp \| No SCH	3	0.19%
2017 \| 6MT Comp Package \| Modified 500-550 whp \| SCH Failure	1	0.06%
2017 \| 6MT Comp Package \| Modified 550+ whp \| No SCH	3	0.19%
2017 \| 6MT Comp Package \| Modified 550+ whp \| SCH Failure	2	0.13%
2017 \| DCT \| Stock \| No SCH	42	2.66%
2017 \| DCT \| Stock \| SCH Failure	0	0%
2017 \| DCT \| Modified 450-500 whp \| No SCH	8	0.51%
2017 \| DCT \| Modified 450-500 whp \| SCH Failure	2	0.13%
2017 \| DCT \| Modified 500-550 whp \| No SCH	10	0.63%
2017 \| DCT \| Modified 500-550 whp \| SCH Failure	2	0.13%
2017 \| DCT \| Modified 550+ whp \| No SCH	3	0.19%
2017 \| DCT \| Modified 550+ whp \| SCH Failure	2	0.13%
2017 \| DCT Comp Package \| Stock \| No SCH	49	3.11%
2017 \| DCT Comp Package \| Stock \| SCH Failure	1	0.06%
2017 \| DCT Comp Package \| Modified 450-500 whp \| No SCH	15	0.95%
2017 \| DCT Comp Package \| Modified 450-500 whp \| SCH Failure	0	0%
2017 \| DCT Comp Package \| Modified 500-550 whp \| No SCH	11	0.70%
2017 \| DCT Comp Package \| Modified 500-550 whp \| SCH Failure	0	0%
2017 \| DCT Comp Package \| Modified 550+ whp \| No SCH	6	0.38%
2017 \| DCT Comp Package \| Modified 550+ whp \| SCH Failure	1	0.06%
2018+ \| 6MT \| Stock \| No SCH	53	3.36%
2018+ \| 6MT \| Stock \| SCH Failure	2	0.13%
2018+ \| 6MT \| Modified 450-500 whp \| No SCH	9	0.57%
2018+ \| 6MT \| Modified 450-500 whp \| SCH Failure	2	0.13%
2018+ \| 6MT \| Modified 500-550 whp \| No SCH	2	0.13%
2018+ \| 6MT \| Modified 500-550 whp \| SCH Failure	6	0.38%
2018+ \| 6MT \| Modified 550+ whp \| No SCH	1	0.06%
2018+ \| 6MT \| Modified 550+ whp \| SCH Failure	0	0%
2018+ \| 6MT Comp Package \| Stock \| No SCH	62	3.93%
2018+ \| 6MT Comp Package \| Stock \| SCH Failure	2	0.13%
2018+ \| 6MT Comp Package \| Modified 450-500 whp \| No SCH	13	0.82%
2018+ \| 6MT Comp Package \| Modified 450-500 whp \| SCH Failure	2	0.13%
2018+ \| 6MT Comp Package \| Modified 500-550 whp \| No SCH	7	0.44%
2018+ \| 6MT Comp Package \| Modified 500-550 whp \| SCH Failure	1	0.06%
2018+ \| 6MT Comp Package \| Modified 550+ whp \| No SCH	4	0.25%
2018+ \| 6MT Comp Package \| Modified 550+ whp \| SCH Failure	1	0.06%
2018+ \| DCT \| Stock \| No SCH	78	4.94%
2018+ \| DCT \| Stock \| SCH Failure	4	0.25%
2018+ \| DCT \| Modified 450-500 whp \| No SCH	16	1.01%
2018+ \| DCT \| Modified 450-500 whp \| SCH Failure)	6	0.38%
2018+ \| DCT \| Modified 500-550 whp \| No SCH	10	0.63%
2018+ \| DCT \| Modified 500-550 whp \| SCH Failure	4	0.25%
2018+ \| DCT \| Modified 550+ whp \| No SCH	4	0.25%
2018+ \| DCT \| Modified 550+ whp \| SCH Failure	3	0.19%
2018+ \| DCT Comp Package \| Stock \| No SCH	101	6.40%
2018+ \| DCT Comp Package \| Stock \| SCH Failure	4	0.25%
2018+ \| DCT Comp Package \| Modified 450-500 whp \| No SCH	21	1.33%
2018+ \| DCT Comp Package \| Modified 450-500 whp \| SCH Failure)	4	0.25%
2018+ \| DCT Comp Package \| Modified 500-550 whp \| No SCH	20	1.27%
2018+ \| DCT Comp Package \| Modified 500-550 whp \| SCH Failure	5	0.32%
2018+ \| DCT Comp Package \| Modified 550+ whp \| No SCH	17	1.08%
2018+ \| DCT Comp Package \| Modified 550+ whp \| SCH Failure	14	0.89%
Multiple Choice Poll. Voters: 1578. You may not vote on this poll

05-02-2019, 01:32 AM	#156
qbrother804 Registered 0 Rep 1 Posts Drives: F80 M3 Join Date: May 2019 Location: China iTrader: (0)	I don't know if my question is crank hub. My car m3 has been set at 1.8bar before. but know it will beat over 2bar. is it may be?
	Appreciate 0 Quote

05-15-2019, 04:26 AM	#162
ruley74 Lost Motorcyclist 167 Rep 379 Posts Drives: 2021 X3M F97 Join Date: Mar 2017 Location: Brisbane, Australia iTrader: (0)	So on face value of the pole results, failures are roughly (% per power level of total reported per power level) 2.5% of stock cars. 7.8% of lightly tuned cars (450-500) 20.8% of 500-550 cars 28.5% of 550+ cars Last edited by ruley74; 05-15-2019 at 05:39 AM.. Reason: dumbed it down
	Appreciate 0 Quote

05-16-2019, 12:20 AM	#168
M 4 FUN Captain 605 Rep 640 Posts Drives: 320 Si, M4 comp. M3 E46 Join Date: Aug 2016 Location: Sweden iTrader: (0)	That's why i will set torque to the same as a GTS on my stage2 BM3 tune. Last edited by M 4 FUN; 05-16-2019 at 10:13 AM..
	Appreciate 0 Quote

05-16-2019, 01:40 AM	#169
ruley74 Lost Motorcyclist 167 Rep 379 Posts Drives: 2021 X3M F97 Join Date: Mar 2017 Location: Brisbane, Australia iTrader: (0)	I ran the VF stage one for a year and 35000kms and was not worried because I have a bit of mechanical sympathy and don't drive like a spastic, I like to drive fast... not thrash a car, two very different things. On a side note I've rolled back to Alex's GTS tune, it's just so smooth and drivable, for driving fast in the hills and DD duties it's awesome... and a possible reduction in risk... maybe. So far about 50000kms done with a tune in my car of some type.
	Appreciate 0 Quote

05-16-2019, 01:43 AM	#171
Bmwlmr99 First Lieutenant 209 Rep 314 Posts Drives: Bmw m4 Join Date: Jul 2016 Location: Texas iTrader: (0)	62,000 tuned stage 2...and stage 1...no Spun hub...a scare tactic...have to do something stupid to spin your hub...I run the hell out of my car. No Issues
	Appreciate 1 FSociety3811.50 Quote

05-20-2019, 12:38 AM	#173
Bmwlmr99 First Lieutenant 209 Rep 314 Posts Drives: Bmw m4 Join Date: Jul 2016 Location: Texas iTrader: (0)	awesome, tell the truth!...
	Appreciate 0 Quote

05-20-2019, 11:44 AM	#174
M 4 FUN Captain 605 Rep 640 Posts Drives: 320 Si, M4 comp. M3 E46 Join Date: Aug 2016 Location: Sweden iTrader: (0)	Just a thought: Why is everyone talking about horsepower instead of torque? Isn't it the torque that is the problem? Does anyone know if any GTS's has spun a crankhub? Johnny.
	Appreciate 0 Quote

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search