Loss of Power

285ferrari · 05-14-2015, 10:42 AM

Would installing exhaust result in any feeling of power loss? I had my Eisenmann exhaust installed this morning and the car does not seem to pull hard like before. Usually about 4k rpm the car pulls very hard up thru the powerband, today is seems sluggish, does not pull as it did before.

285ferrari · 05-14-2015, 02:58 PM

Possible that the computer needs to learn the "new" exhaust

badblack550xi · 05-14-2015, 03:46 PM

give it some time

285ferrari · 05-14-2015, 04:02 PM

Quote:

Originally Posted by badblack550xi

give it some time

Hope that is all it is--Thanks

MCarsFan · 05-14-2015, 06:37 PM

Quote:

Originally Posted by 285ferrari

Hope that is all it is--Thanks

Take your car for a spin. I agree - I think the car is adjusting to the new exhaust. Good luck!

A Frankfurt · 05-14-2015, 07:25 PM

Quote:

Originally Posted by 285ferrari

Would installing exhaust result in any feeling of power loss? I had my Eisenmann exhaust installed this morning and the car does not seem to pull hard like before. Usually about 4k rpm the car pulls very hard up thru the powerband, today is seems sluggish, does not pull as it did before.

Did you only install the rear muffler ?

285ferrari · 05-14-2015, 07:44 PM

Quote:

Originally Posted by Autohaus Frankfurt

Did you only install the rear muffler ?

Yes, both the rear mufflers, Eisenmann - - Drove it home from exhaust shop about 30 miles and have not driven it again today

MCarsFan · 05-14-2015, 10:03 PM

Hope your worries are unfounded and everything 100%

gmfive · 05-15-2015, 10:22 AM

I had felt the same way after installing my E-Sport. It felt okay in a few days. Don't know what percentage was psychological vs the engine acclimatizing itself to it. My E-Sport has gotten louder over time, going uphill in 2nd sounds sweet.

lfelunden · 05-16-2015, 03:47 AM

No worries
For fast adaption, do some 3rd gear pulls to redline, then turn off the car, wait 30 min (ecus adapt). Then do it again, after a couple of times you WILL notice a big difference in power

285ferrari · 05-16-2015, 07:28 AM

Quote:

Originally Posted by lfelunden

No worries
For fast adaption, do some 3rd gear pulls to redline, then turn off the car, wait 30 min (ecus adapt). Then do it again, after a couple of times you WILL notice a big difference in power

Thanks, I will try that today

M54ccibo · 05-16-2015, 11:40 PM

Check to make sure the vacuum tubes to the exhaust valves are either sealed or connected properly.

lfelunden · 05-17-2015, 06:17 PM

Did it work out? Also, do you have any error codes maybe?

285ferrari · 05-18-2015, 06:49 AM

Quote:

Originally Posted by lfelunden

Did it work out? Also, do you have any error codes maybe?

No error codes. Added a JB4 on Saturday morning have since put about 100 miles on car in last couple days. No change

lfelunden · 05-20-2015, 12:40 PM

Quote:

Originally Posted by 285ferrari

Quote:

Originally Posted by lfelunden

Did it work out? Also, do you have any error codes maybe?

No error codes. Added a JB4 on Saturday morning have since put about 100 miles on car in last couple days. No change

So your car is still "slow"?

285ferrari · 05-20-2015, 03:32 PM

Quote:

Originally Posted by lfelunden

So your car is still "slow"?

It SUCKS!!! Best way to describe it feels like the turbos are not working at all. Very sluggish. Have gone a couple hundred miles since last week, did numerous 3rd gear pulls and nothing.

Not sure what to do at this point.

JPMD · 05-20-2015, 04:46 PM

Quote:

Originally Posted by M54ccibo

Check to make sure the vacuum tubes to the exhaust valves are either sealed or connected properly.

This is what I was thinking.
Was this checked?

bobblehead · 05-20-2015, 04:48 PM

+1 . Perhaps, take it to another exhaust shop for them to double check that vacuum tubing.

285ferrari · 05-20-2015, 04:57 PM

Quote:

Originally Posted by JPMD

This is what I was thinking.
Was this checked?

Quote:

Originally Posted by bobblehead

+1 . Perhaps, take it to another exhaust shop for them to double check that vacuum tubing.

I don't think they can be connected on the Eisemann, so they must be sealed off? Does that make sense? If so, anyway for me to check that?

M54ccibo · 05-20-2015, 05:01 PM

If the exhaust was used there were a few early samples with valves. Not new any longer. But yes, if no valves they have to be sealed.

A Frankfurt · 05-20-2015, 05:53 PM

I've never experienced a vehicle loosing power by having to adapt itself from only replacing a rear muffler
Something is wrong.
If you installed a JB harness kit at the same time, make sure it is installed and setup correctly

285ferrari · 05-20-2015, 06:07 PM

Quote:

Originally Posted by M54ccibo

Check to make sure the vacuum tubes to the exhaust valves are either sealed or connected properly.

Quote:

Originally Posted by JPMD

This is what I was thinking.
Was this checked?

Quote:

Originally Posted by bobblehead

+1 . Perhaps, take it to another exhaust shop for them to double check that vacuum tubing.

Quote:

Originally Posted by M54ccibo

If the exhaust was used there were a few early samples with valves. Not new any longer. But yes, if no valves they have to be sealed.

The shop "thought" they sealed them off, they were mistaken, I found the tubes opened. I sealed them off. Will take it for a drive tomorrow, hopefully that was the issue. Thanks for all the help everyone.

05-14-2015, 10:42 AM	#1
285ferrari Second Lieutenant 24 Rep 205 Posts Drives: 2018 M550 Join Date: May 2009 Location: Maryland iTrader: (2)	Loss of Power Would installing exhaust result in any feeling of power loss? I had my Eisenmann exhaust installed this morning and the car does not seem to pull hard like before. Usually about 4k rpm the car pulls very hard up thru the powerband, today is seems sluggish, does not pull as it did before.
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05-14-2015, 02:58 PM	#2
285ferrari Second Lieutenant 24 Rep 205 Posts Drives: 2018 M550 Join Date: May 2009 Location: Maryland iTrader: (2)	Possible that the computer needs to learn the "new" exhaust
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05-14-2015, 03:46 PM	#3
badblack550xi Colonel 465 Rep 2,416 Posts Drives: F10 550i 2011 F90 2020 COMP Join Date: May 2013 Location: NJ iTrader: (0)	give it some time __________________ 2011 550i RWD 60-130 7.35
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05-14-2015, 10:03 PM	#8
MCarsFan Lieutenant Colonel 363 Rep 1,805 Posts Drives: 2014 BMW M5 F10 CP Join Date: Apr 2013 Location: Dallas, Texas iTrader: (0) Garage List 2014 BMW F10 M5 [10.00]	Hope your worries are unfounded and everything 100% __________________ 2014 BMW F10 M5 ZCP \| SSII / Black \| MSR Stage III \| MSR Intakes \| RPi GTM Exhaust \| RPi Catless Downpipes \|RW Carbon Front Lip \| RW Carbon Diffuser \| RW Carbon Trunk Spoiler \|
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05-15-2015, 10:22 AM	#9
gmfive Lieutenant 98 Rep 550 Posts Drives: 2014 F10 M5 AW Join Date: Aug 2014 Location: SF iTrader: (0) Garage List 2014 M5 [0.00]	I had felt the same way after installing my E-Sport. It felt okay in a few days. Don't know what percentage was psychological vs the engine acclimatizing itself to it. My E-Sport has gotten louder over time, going uphill in 2nd sounds sweet. __________________ 2014 AW F10 M5, mostly stock
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05-16-2015, 03:47 AM	#10
lfelunden Banned 60 Rep 643 Posts Drives: BMW M5 F10 Join Date: Aug 2011 Location: German Autobahn iTrader: (0) Garage List 2013 BMW M5 [0.00] 2011 Alpina B3S Bit ... [9.50] 2010 Alpina B3 Biturbo [10.00] 2009 Alpina B5S [10.00]	No worries For fast adaption, do some 3rd gear pulls to redline, then turn off the car, wait 30 min (ecus adapt). Then do it again, after a couple of times you WILL notice a big difference in power
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05-16-2015, 11:40 PM	#12
M54ccibo Major 85 Rep 1,489 Posts Drives: '16 GT4 Join Date: Apr 2012 Location: Orange County, CA iTrader: (0)	Check to make sure the vacuum tubes to the exhaust valves are either sealed or connected properly. __________________ Current: '16 GT4 Past ///Ms: '13 F10 M5, Alpine Weiss III/Sakhir Orange Full '10 E60 M5, Space Gray/Black
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05-17-2015, 06:17 PM	#13
lfelunden Banned 60 Rep 643 Posts Drives: BMW M5 F10 Join Date: Aug 2011 Location: German Autobahn iTrader: (0) Garage List 2013 BMW M5 [0.00] 2011 Alpina B3S Bit ... [9.50] 2010 Alpina B3 Biturbo [10.00] 2009 Alpina B5S [10.00]	Did it work out? Also, do you have any error codes maybe?
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05-20-2015, 04:48 PM	#18
bobblehead Brigadier General 256 Rep 4,721 Posts Drives: warp speed Join Date: Aug 2009 Location: Toronto, On iTrader: (0)	+1 . Perhaps, take it to another exhaust shop for them to double check that vacuum tubing.
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05-20-2015, 05:01 PM	#20
M54ccibo Major 85 Rep 1,489 Posts Drives: '16 GT4 Join Date: Apr 2012 Location: Orange County, CA iTrader: (0)	If the exhaust was used there were a few early samples with valves. Not new any longer. But yes, if no valves they have to be sealed. __________________ Current: '16 GT4 Past ///Ms: '13 F10 M5, Alpine Weiss III/Sakhir Orange Full '10 E60 M5, Space Gray/Black
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05-20-2015, 05:53 PM	#21
A Frankfurt Banned 247 Rep 616 Posts Drives: German Join Date: Mar 2015 Location: Murrieta CA iTrader: (0)	I've never experienced a vehicle loosing power by having to adapt itself from only replacing a rear muffler Something is wrong. If you installed a JB harness kit at the same time, make sure it is installed and setup correctly
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