Question about reving engine

MTROUBLE93 · 02-18-2013, 03:30 PM

Hey guys so I was listening to my exhaust and reving up my car and I noticed that my car stops me at around 7k rpms.. I thought my rev limiter was at 85k. I hit red line all the time while driving but why does it stop me at 7 while stopped ?? Strange ..

kscarrol · 02-18-2013, 03:34 PM

Talks about this in the manual, redline at a stand-still is around 7k rpm...

Edit: Here it is, pg 52 of the M3 supplemental manual... "Because of the powerful engine dynamics, the maximum engine
speed is limited to 7,000 rpm when the vehicle is stationary."

Edjay · 02-18-2013, 03:52 PM

Because its not a good idea to rev your engine that high without any load.

Echo M3 · 02-18-2013, 03:52 PM

M trouble indeed.

MSPORTWORLD · 02-18-2013, 03:52 PM

Quote:

Originally Posted by kscarrol

Talks about this in the manual, redline at a stand-still is around 7k rpm...

Edit: Here it is, pg 52 of the M3 supplemental manual... "Because of the powerful engine dynamics, the maximum engine
speed is limited to 7,000 rpm when the vehicle is stationary."

Concur

gatorfast · 02-18-2013, 05:52 PM

If you clutch in and put the car in gear you can rev to redline.

Peahi · 02-18-2013, 06:17 PM

Keep it up and you will be real "Mtrouble." Lol. Don't be like this guy.

Sorry folks, I keep posting this video, but its a keeper and he is a new member. LOL.

Vic311 · 02-18-2013, 06:18 PM

What is this 85K rev limit you speak of?

jphughan · 02-18-2013, 07:34 PM

Don't rev your engine that high while at a standstill, OP. Hell I probably wouldn't even go past 5.5K, and even then just a throttle blip, not holding the throttle down. Not only is it bad for an engine to rev like that without any load as others have mentioned, but keep in mind you're revving the engine without any airflow being pushed into the intake the way it normally would be when your engine was revving that way from your car actually moving forward.

Chriskm3 · 02-18-2013, 07:44 PM

Quote:

Originally Posted by Peahi

Keep it up and you will be real "Mtrouble." Lol. Don't be like this guy.

Sorry folks, I keep posting this video, but its a keeper and he is a new member. LOL.

This should be a tire commercial. Sticky tires.
T

jphughan · 02-18-2013, 09:25 PM

Quote:

Originally Posted by Chriskm3

This should be a tire commercial. Sticky tires.
T

My best guess as to how this was done is constant clutch slipping with the handbrake completely engaged. I just can't believe anyone was dumb enough to do that and think they were doing a burnout.

InterJon · 02-18-2013, 09:29 PM

Quote:

Originally Posted by Team Plutonium

Keep revving the engine... it takes about an hour to get to and over the 8K mark.

And make sure to tell us your vin. It will save a troubleshooting post down the road.

W/// · 02-18-2013, 09:58 PM

Keep revving until you see your valves dancing on your hood. Then let off.

STi_traitor · 02-18-2013, 10:09 PM

Vic311 · 02-18-2013, 10:23 PM

Quote:

Originally Posted by Chriskm3

This should be a tire commercial. Sticky tires.
T

EPIC FAIL

"Those were not the tires" one says as they all circle the car scratching their heads..

Cant smell the difference between smoked tires and smoked clutch? smh

TeKNiC3 · 02-18-2013, 10:44 PM

Quote:

Originally Posted by STi_traitor

Curt2000 · 02-18-2013, 10:59 PM

I'm sure your neighborhood has a high opinion of you.

ScreaM · 02-18-2013, 11:42 PM

Quote:

Originally Posted by MTROUBLE93

Hey guys so I was listening to my exhaust and reving up my car and I noticed that my car stops me at around 7k rpms.. I thought my rev limiter was at 85k. I hit red line all the time while driving but why does it stop me at 7 while stopped ?? Strange ..

For a more technical answer
http://www.eng-tips.com/viewthread.cfm?qid=304710

No load revving is bad for the engine

MTROUBLE93 · 02-18-2013, 11:57 PM

May be a stupid question excuse my ignorance but what is a "load" and I don't usually rev it but today I just wanted to listen to it.

ScreaM · 02-18-2013, 11:59 PM

Quote:

Originally Posted by MTROUBLE93

May be a stupid question excuse my ignorance but what is a "load" and I don't usually rev it but today I just wanted to listen to it.

Oh my..

slicer · 02-19-2013, 12:11 AM

Quote:

Originally Posted by Team Plutonium

Ask your mom.

luis_m3 · 02-19-2013, 01:12 AM

Quote:

Originally Posted by Team Plutonium

Quote:

Originally Posted by MTROUBLE93

May be a stupid question excuse my ignorance but what is a "load" and I don't usually rev it but today I just wanted to listen to it.

Ask your mom.

Lol. You guys are brutal! Funny as hell tho'

02-18-2013, 03:30 PM	#1
MTROUBLE93 Private First Class 9 Rep 123 Posts Drives: 09 interlagos blue M3 Join Date: Feb 2013 Location: NEWYORK iTrader: (0)	Question about reving engine Hey guys so I was listening to my exhaust and reving up my car and I noticed that my car stops me at around 7k rpms.. I thought my rev limiter was at 85k. I hit red line all the time while driving but why does it stop me at 7 while stopped ?? Strange ..
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02-18-2013, 03:34 PM	#2
kscarrol Brigadier General 8890 Rep 4,107 Posts Drives: 2021 X3 M40i, 1974 2002 Tii Join Date: Jun 2010 Location: Greenville, SC iTrader: (0)	Talks about this in the manual, redline at a stand-still is around 7k rpm... Edit: Here it is, pg 52 of the M3 supplemental manual... "Because of the powerful engine dynamics, the maximum engine speed is limited to 7,000 rpm when the vehicle is stationary." __________________ 2021 X3 M40i 1974 2002tii, Inka, 5 sp manual BMWCCA # 327475 Last edited by kscarrol; 02-18-2013 at 03:51 PM..
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02-18-2013, 03:52 PM	#3
Edjay First Lieutenant 4 Rep 350 Posts Drives: 08 E90 AW, 76 2002 Join Date: Jul 2011 Location: Sacoftomatoes Ca iTrader: (0)	Because its not a good idea to rev your engine that high without any load.
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02-18-2013, 03:52 PM	#4
Echo M3 Major 123 Rep 1,432 Posts Drives: E90 M3 Join Date: Sep 2009 Location: NY iTrader: (0)	M trouble indeed.
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02-18-2013, 05:52 PM	#6
gatorfast Major General 4992 Rep 6,860 Posts Drives: 718 Cayman Join Date: Jan 2008 Location: SoFla iTrader: (4)	If you clutch in and put the car in gear you can rev to redline.
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02-18-2013, 06:17 PM	#7
Peahi Captain 13 Rep 682 Posts Drives: 2012 M3 CPE Join Date: Jun 2011 Location: SF Bay Area iTrader: (0)	Keep it up and you will be real "Mtrouble." Lol. Don't be like this guy. Sorry folks, I keep posting this video, but its a keeper and he is a new member. LOL. __________________
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02-18-2013, 06:18 PM	#8
Vic311 Banned 42 Rep 1,463 Posts Drives: 2011 e92 M3 Join Date: Dec 2012 Location: NY iTrader: (0)	What is this 85K rev limit you speak of?
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02-18-2013, 07:34 PM	#9
jphughan Brigadier General 594 Rep 4,488 Posts Drives: '16 Cayman GT4 Join Date: Mar 2011 Location: Austin, TX iTrader: (0)	Don't rev your engine that high while at a standstill, OP. Hell I probably wouldn't even go past 5.5K, and even then just a throttle blip, not holding the throttle down. Not only is it bad for an engine to rev like that without any load as others have mentioned, but keep in mind you're revving the engine without any airflow being pushed into the intake the way it normally would be when your engine was revving that way from your car actually moving forward. __________________ '16 Cayman GT4 (delivery pics, comparison to E92 M3 write-up) Gone but not forgotten: '11.75 M3 E92 Le Mans \| Black Nov w/ Alum \| 6MT (owned 5/2011 - 11/2015) Last edited by jphughan; 02-18-2013 at 07:42 PM..
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02-18-2013, 09:58 PM	#13
W/// Lieutenant General 7484 Rep 12,305 Posts Drives: F82GTS, E36/E92M3, Z4M Join Date: Sep 2011 Location: SC iTrader: (13)	Keep revving until you see your valves dancing on your hood. Then let off. __________________ Current: 16 F82 M4 GTS, Black Sapphire/Black, DCT 08 E92 M3, Sparkling Graphite/Bamboo Beige, 6MT 07 E85 Z4M Roadster, Alpine White/Red, 6MT 99 E36 M3, Techno Violet/Dove Grey, 6MT
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02-18-2013, 10:09 PM	#14
STi_traitor Banned 104 Rep 996 Posts Drives: BTG 2014 - 3 Laps Join Date: Sep 2012 Location: Bavaria iTrader: (0)
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02-18-2013, 10:59 PM	#17
Curt2000 Brigadier General 1013 Rep 3,157 Posts Drives: '93 Supra Turbo Join Date: Jun 2007 Location: Washington D.C. iTrader: (25)	I'm sure your neighborhood has a high opinion of you. __________________ Former Car: '16 SUNBURST GOLD F80 ///M3--6MT/Carbon Cloth (ED Thread) Former Car:'13 SANTORINI BLUE E92///M3--6MT/Speed Cloth/ZCP(ED Thread) INSTAGRAM:@C2KMotorsports
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02-18-2013, 11:57 PM	#19
MTROUBLE93 Private First Class 9 Rep 123 Posts Drives: 09 interlagos blue M3 Join Date: Feb 2013 Location: NEWYORK iTrader: (0)	May be a stupid question excuse my ignorance but what is a "load" and I don't usually rev it but today I just wanted to listen to it.
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