Passing rev limiter

Forcefed3 · 02-19-2011, 08:22 PM

So today when I was driving (closed road) I turned off DTC and DSC and did 40mph pull, but when I hit redline it kept going. I dont know how this is possible, it went to 7500rpm. Car is now leaking water, no it is not transmission fluid, coolant, or oil. I have never heard of anything like this and it just doesn't make since to me. How is it even possible to pass a rev limiter? If someone can tell me whats going on that would be great.

Bimmer This · 02-19-2011, 08:33 PM

probably because your tune disabled the rev limiter function

MDORPHN · 02-19-2011, 08:42 PM

Confused. What do you mean it is leaking water, but not coolant?

Neil

ebill335 · 02-19-2011, 08:49 PM

it isnt leaking coolant, its leaking water is what he is saying, and also tune sdoesnt disable the rev limiter

Forcefed3 · 02-19-2011, 08:57 PM

Quote:

Originally Posted by Bimmer This

probably because your tune disabled the rev limiter function

Terry told me the JB4 doesnt mess with the rev limiter at all.

Quote:

Originally Posted by MDORPHN

Confused. What do you mean it is leaking water, but not coolant?

Neil

Its leaking water. Its not leaking coolant, some would assume that what I think is water is actually coolant.

2 3pair · 02-19-2011, 09:01 PM

Did you run the a/c today?

Bakeme521 · 02-19-2011, 09:02 PM

It's hot outside grant, the water is from the condenser.

MDORPHN · 02-19-2011, 09:05 PM

Quote:

Originally Posted by Bakeme521

It's hot outside grant, the water is from the condenser.

You're right, that's the only possible explanation since water is not used as a fluid anywhere in the car. Nonetheless, I don't see how it could be related to exceeding the redline.

Neil

ebill335 · 02-19-2011, 09:05 PM

Quote:

Originally Posted by Bakeme521

It's hot outside grant, the water is from the condenser.

he said it is a lot of water

Forcefed3 · 02-19-2011, 09:05 PM

Quote:

Originally Posted by Bakeme521

It's hot outside grant, the water is from the condenser.

Yeah, but can the condenser really let out about 16oz of water?

Forcefed3 · 02-19-2011, 09:06 PM

Quote:

Originally Posted by MDORPHN

Quote:

Originally Posted by Bakeme521

It's hot outside grant, the water is from the condenser.

You're right, that's the only possible explanation since water is not used as a fluid anywhere in the car. Nonetheless, I don't see how it could be related to exceeding the redline.

Neil

Yeah, I don't see how it could be related either. It's just strange that it started right after that.

NiVeDh · 02-19-2011, 10:47 PM

Do you have 6MT? Mechanical overrev? There's no way it exceeded the rev limiter if you didn't do a "money shift" downshift.

Express · 02-19-2011, 10:49 PM

im with the ac water theory.

Bimmer This · 02-19-2011, 10:50 PM

Quote:

Originally Posted by dinan828

it isnt leaking coolant, its leaking water is what he is saying, and also tune sdoesnt disable the rev limiter

If a tune can change the speed limiter, what makes you think they can't do that with a rev limiter?

Forcefed3 · 02-19-2011, 10:51 PM

Quote:

Originally Posted by Bimmer This

If a tune can change the speed limiter, what makes you think they can't do that with a rev limiter?

Well I dont have speed delimiter either.

Forcefed3 · 02-19-2011, 10:52 PM

Quote:

Originally Posted by NiVeDh

Do you have 6MT? Mechanical overrev? There's no way it exceeded the rev limiter if you didn't do a "money shift" downshift.

I have a 6AT, thats why I am confused.

Morpheus · 02-19-2011, 11:00 PM

Its not related. It's just that you were looking for something because of the over rev.

Forcefed3 · 02-19-2011, 11:05 PM

Quote:

Originally Posted by Morpheus

Its not related. It's just that you were looking for something because of the over rev.

Exactly. I was just paranoid, it has seemed to stop so it has to be the A/C.

Ghines1279 · 02-19-2011, 11:34 PM

i know on some honda's, if you pull the e-brake enough for the light to come on, it will disable the Rev and speed limiter. Also, maybe your tach is not accurate, My spedo is off by lik 6 MPH with stock wheels and tires.

e90injrz · 02-19-2011, 11:39 PM

Quote:

Originally Posted by 2 3pair

Did you run the a/c today?

i lol'ed

tscdennab · 02-20-2011, 08:08 AM

I'm not sure that going 500RPM higher in one instance would do so much damage to your car.

Brey335i · 02-20-2011, 08:15 AM

Quote:

Originally Posted by tscdennab

I'm not sure that going 500RPM higher in one instance would do so much damage to your car.

I think OP is more worried about what happened. Are you sure you weren't near an M3 OP? Perhaps your car just got inspired for a moment haha

02-19-2011, 08:22 PM	#1
Forcefed3 Banned 127 Rep 4,732 Posts Drives: 2008 335i Join Date: May 2010 Location: South iTrader: (2) Garage List 2008 335i [1.00]	Passing rev limiter So today when I was driving (closed road) I turned off DTC and DSC and did 40mph pull, but when I hit redline it kept going. I dont know how this is possible, it went to 7500rpm. Car is now leaking water, no it is not transmission fluid, coolant, or oil. I have never heard of anything like this and it just doesn't make since to me. How is it even possible to pass a rev limiter? If someone can tell me whats going on that would be great.
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02-19-2011, 08:33 PM	#2
Bimmer This Major General 99 Rep 6,473 Posts Drives: 2007 BMW 335i Join Date: Nov 2008 Location: Westminster iTrader: (3)	probably because your tune disabled the rev limiter function
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02-19-2011, 08:42 PM	#3
MDORPHN Colonel 292 Rep 2,898 Posts Drives: AW 1M Join Date: Oct 2010 Location: Wash, DC iTrader: (0)	Confused. What do you mean it is leaking water, but not coolant? Neil
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02-19-2011, 08:49 PM	#4
ebill335 New Member 3 Rep 6 Posts Drives: e90 335i xDrive Join Date: Jan 2011 Location: north iTrader: (0)	it isnt leaking coolant, its leaking water is what he is saying, and also tune sdoesnt disable the rev limiter
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02-19-2011, 09:01 PM	#6
2 3pair Second Lieutenant 4 Rep 284 Posts Drives: as often as possible Join Date: Jun 2010 Location: Memphis iTrader: (2)	Did you run the a/c today? __________________
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02-19-2011, 09:02 PM	#7
Bakeme521 Some say... 239 Rep 4,296 Posts Drives: Fresh Join Date: Mar 2010 Location: Baton Rouge n NOLA iTrader: (12) Garage List 2007 BMW 335i [8.24]	It's hot outside grant, the water is from the condenser. __________________ I have exhaust and an intake...
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02-19-2011, 10:47 PM	#12
NiVeDh Major General 422 Rep 8,003 Posts Drives: '08 E90 335i, '99 E36 M3 Join Date: Apr 2009 Location: Houston, TX & Atlanta, GA iTrader: (132) Garage List 2008 BMW 335i Sedan [8.66]	Do you have 6MT? Mechanical overrev? There's no way it exceeded the rev limiter if you didn't do a "money shift" downshift.
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02-19-2011, 10:49 PM	#13
Express Major General 369 Rep 8,693 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	im with the ac water theory.
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02-19-2011, 11:00 PM	#17
Morpheus Captain 25 Rep 941 Posts Drives: 335i Titanium Silver Join Date: Sep 2008 Location: Cockaigne iTrader: (1)	Its not related. It's just that you were looking for something because of the over rev.
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02-19-2011, 11:34 PM	#19
Ghines1279 Second Lieutenant 7 Rep 238 Posts Drives: F30 335i Join Date: Mar 2009 Location: SAN DIEGO! iTrader: (5) Garage List 2007 e92 335i [0.00]	i know on some honda's, if you pull the e-brake enough for the light to come on, it will disable the Rev and speed limiter. Also, maybe your tach is not accurate, My spedo is off by lik 6 MPH with stock wheels and tires.
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02-20-2011, 08:08 AM	#21
tscdennab Banned 153 Rep 1,809 Posts Drives: BMW 335i Join Date: Oct 2010 Location: Europe iTrader: (0) Garage List 2008 BMW [6.24]	I'm not sure that going 500RPM higher in one instance would do so much damage to your car.
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