Revving the engine before shutting it down?

MXM · January 9th, 2005, 7:05 PM

I noticed the host of "Victory by design" does it all the time. What's the point? Lots of these cars are turbocharged, and It's better to leave engine running for a while to let turbine cool down, not revving it before turning off. Am I wrong?

Jostyrostelli · January 9th, 2005, 7:09 PM

I thought so too, when you watch Band of Brothers you'll hear it to when they stop the old land rover (the old trucks).

Ultra_Kool_Dude · January 9th, 2005, 7:15 PM

If you like the sound of the engine, then you give it a bit of the "how do you do?" before you put it away.

mmap · January 9th, 2005, 7:45 PM

Well as MXM says there seems to be no logig with new engines and that is true. The revving the engine before stopping comes from the time of carburettors, when you wanted to leave some gas in there when shutting down so that the next time the engine is started it will not be dry.

I suppose people nowadays think it sounds cool or something?? dunno, but the reason above is why it used to be a good idea...

Dr. Woo · January 9th, 2005, 7:46 PM

Quote:

Originally Posted by muumipeikko

Well as MXM says there seems to be no logig with new engines and that is true. The revving the engine before stopping comes from the time of carburettors, when you wanted to leave some gas in there when shutting down so that the next time the engine is started it will not be dry.

I suppose people nowadays think it sounds cool or something?? dunno, but the reason above is why it used to be a good idea...

It's like double-clutching. images/smilies/tongue.gif

ruuman · January 9th, 2005, 11:43 PM

The only other reason I can think of is if you have a really poor condition engine you sometimes get overrun caused by hot carbon desposites on the head of the engine, it basically ignites the petrol and keeps it running for a bit without a spark. One of my old cars did this all the time so I used to stop it by turning it off at high revs. But I wouldn't do it normal as was said before, especially with a turbo car as you run the risk of ruining the bearings from oil starvation.

andyhui01 · January 10th, 2005, 2:56 AM

I remember with Carb engines... you had to hold the throttle while starting the car so it is easier for it to start as there is more fuel. However if you let too much fuel in... you end up flooding it and makes it even harder to start. I guess revving it before shutting it down will let you start has the same concept as revving it to start

idletask · January 10th, 2005, 5:45 AM

Quote:

Originally Posted by MXM

I noticed the host of "Victory by design" does it all the time. What's the point? Lots of these cars are turbocharged, and It's better to leave engine running for a while to let turbine cool down, not revving it before turning off. Am I wrong?

You're right that turbocharged engines should NEVER been revved before shutdown but that's for another reason than cooling down: lubrication. If you shut down the engine, you shut down the oil pump, and the turbo will spin unlubricated, which is really, really bad.

jasonchiu · February 1st, 2005, 2:28 PM

revving a modern car before shutting down actually damages the engine.

SiR_dude · February 1st, 2005, 10:57 PM

Quote:

Originally Posted by jasonchiu

revving a modern car before shutting down actually damages the engine.

Was that really necessary?? images/smilies/rolleyes.gif

Kip_6666 · February 1st, 2005, 11:29 PM

Quote:

Originally Posted by SiR_dude

Quote:

Originally Posted by jasonchiu

revving a modern car before shutting down actually damages the engine.

Was that really necessary?? images/smilies/rolleyes.gif

dito

Cubits · February 2nd, 2005, 3:04 AM

I do it just to look cool. It doesn't cause damage to the engine. You're revving an unloaded engine, hence there isn't much load, and hence there isn't much damage, unless you're a complete pillock about it.

Also, i rev the engine to boost oil pressure right before i turn it off, just to give it a good thwack of oil to cool down with. Even if it doesn't do much, i still have to add that it sounds cool.

andyhui01 · February 2nd, 2005, 4:29 AM

Quote:

Originally Posted by Sir_dude

Was that really necessary?? Rolling Eyes

I think this was done when he was being a postwhore to get his name in every section of the post images/smilies/lol.gif

bihus · February 2nd, 2005, 3:05 PM

Quote:

Originally Posted by andyhui01

Quote:

Originally Posted by Sir_dude

Was that really necessary?? Rolling Eyes

I think this was done when he was being a postwhore to get his name in every section of the post images/smilies/lol.gif

nope, it was yesterday images/smilies/mrgreen.gif

SiR_dude · February 2nd, 2005, 10:45 PM

Quote:

Originally Posted by bihus

Quote:

Originally Posted by andyhui01

Quote:

Originally Posted by Sir_dude

Was that really necessary?? Rolling Eyes

I think this was done when he was being a postwhore to get his name in every section of the post images/smilies/lol.gif

nope, it was yesterday images/smilies/mrgreen.gif

Either way, he was still being a postwhore images/smilies/thumbdown.gif

OfTheSin · April 4th, 2005, 8:36 PM

Its not really that necessary, instead its more of a...your in a parking lot surrounded by h0tness. You gotta show off teh blow-off valve. images/smilies/biggrin.gif

Quote:

Originally Posted by Ultra_Kool_Dude

If you like the sound of the engine, then you give it a bit of the "how do you do?" before you put it away.

I couldnt really say it better than that.

Leppy · April 5th, 2005, 7:17 AM

Ok postwhore... I mean Ofthesin. Start making convo in recent threads and stop bumping old ones.

pdanev · April 5th, 2005, 9:59 AM

^ indeed.

Viper007Bond · April 5th, 2005, 10:35 AM

Please don't bump threads just to say pretty much "I agree". images/smilies/wink.gif

freakster_991 · April 5th, 2005, 1:21 PM

actually it is bad to rev the engine before shuttin down because u wanna keep the chamber free of the fuel as to save the engine oil...it also increases tiny particles inside the cylinder...you have to make the cylinders as clean as possible....revvin it makes it dirty

January 9th, 2005, 7:05 PM	#1
MXM old porsches do run! Joined: Jun 9th, 2004 Last Online: 1:04 AM Location: Finland Age: 27 Posts: 3,171 Car: 520, (7), (944) LFS Status: Rep Power: 82	Revving the engine before shutting it down? I noticed the host of "Victory by design" does it all the time. What's the point? Lots of these cars are turbocharged, and It's better to leave engine running for a while to let turbine cool down, not revving it before turning off. Am I wrong?

January 9th, 2005, 7:09 PM	#2
Jostyrostelli Joined: May 29th, 2004 Last Online: March 16th, 2010 Posts: 8,062 Rep Power: 33	I thought so too, when you watch Band of Brothers you'll hear it to when they stop the old land rover (the old trucks). __________________ Your talents are not an achievement. What you do with them is. Owner of a 1970 Beetle 1300. (click for movies) Water is only to do the dishes.

January 9th, 2005, 7:15 PM	#3
Ultra_Kool_Dude AWESOME!!!111ONE Joined: Oct 4th, 2004 Last Online: January 4th, 2010 Location: Clarkson's House Posts: 3,681 Car: POWERR!!! Rep Power: 0	If you like the sound of the engine, then you give it a bit of the "how do you do?" before you put it away. __________________ What's the difference between charity and socialism? What's the difference between sex and rape?

January 10th, 2005, 2:56 AM	#7
andyhui01 Joined: Jun 4th, 2004 Last Online: December 28th, 2009 Location: Melbourne, Australia Age: 21 Posts: 8,527 Car: 00' Subaru Forester GT LFS Status: Rep Power: 33	I remember with Carb engines... you had to hold the throttle while starting the car so it is easier for it to start as there is more fuel. However if you let too much fuel in... you end up flooding it and makes it even harder to start. I guess revving it before shutting it down will let you start has the same concept as revving it to start __________________

February 2nd, 2005, 3:04 AM	#12
Cubits Joined: Dec 7th, 2004 Last Online: August 16th, 2009 Location: Australia Age: 26 Posts: 134 Car: Peugeot 205 GTI Mi16 LFS Status: Rep Power: 22	I do it just to look cool. It doesn't cause damage to the engine. You're revving an unloaded engine, hence there isn't much load, and hence there isn't much damage, unless you're a complete pillock about it. Also, i rev the engine to boost oil pressure right before i turn it off, just to give it a good thwack of oil to cool down with. Even if it doesn't do much, i still have to add that it sounds cool. __________________ "The 205 is more feelsome than Michael Jackson at a children's party." "The Caparo T1 grips like a Rottweiler to a toddler." "The new Impreza looks like Gonzo, being sodomised by a Mazda 3 in sequined chaps." "These tyres are more progressive than a kid with two dads."

January 9th, 2005, 7:45 PM	#4
mmap Joined: Sep 12th, 2004 Last Online: Yesterday Location: Finland Age: 30 Posts: 1,320 Rep Power: 24	Well as MXM says there seems to be no logig with new engines and that is true. The revving the engine before stopping comes from the time of carburettors, when you wanted to leave some gas in there when shutting down so that the next time the engine is started it will not be dry. I suppose people nowadays think it sounds cool or something?? dunno, but the reason above is why it used to be a good idea...

January 9th, 2005, 11:43 PM	#6
ruuman Joined: Sep 16th, 2004 Last Online: 12:09 AM Location: surrey, UK Age: 30 Posts: 649 Car: Defender 90, suzuki SJ410, Suzuki DL-650 Rep Power: 23	The only other reason I can think of is if you have a really poor condition engine you sometimes get overrun caused by hot carbon desposites on the head of the engine, it basically ignites the petrol and keeps it running for a bit without a spark. One of my old cars did this all the time so I used to stop it by turning it off at high revs. But I wouldn't do it normal as was said before, especially with a turbo car as you run the risk of ruining the bearings from oil starvation.

February 1st, 2005, 2:28 PM	#9
jasonchiu Banned Joined: May 26th, 2004 Last Online: August 26th, 2005 Location: hong kong Posts: 5,216 Rep Power: 0	revving a modern car before shutting down actually damages the engine.

April 5th, 2005, 7:17 AM	#17
Leppy Joined: Aug 29th, 2004 Last Online: April 5th, 2009 Location: Brisbane, Australia. Posts: 1,776 Rep Power: 24	Ok postwhore... I mean Ofthesin. Start making convo in recent threads and stop bumping old ones.

April 5th, 2005, 9:59 AM	#18
pdanev Joined: Oct 4th, 2004 Last Online: March 17th, 2010 Location: Netherlands Age: 26 Posts: 5,645 LFS Status: Rep Power: 30	^ indeed.

April 5th, 2005, 10:35 AM	#19
Viper007Bond Lazy Head Dude Joined: Sep 21st, 2003 Last Online: 3:29 AM Location: Portland, Oregon Age: 25 Posts: 22,623 Car: Dodge Viper (I wish!) Rep Power: 340	Please don't bump threads just to say pretty much "I agree". __________________ There is no replacement for displacement. - Wolfgang Bernhard, Chief Operating Officer, Chrysler Group talking about the Dodge Viper SRT-10 ... I ask Herb Helbig, vehicle synthesis manager for SRT and a member of the original Team Viper development group since day one, if they'd ever thought of adding traction control. "It comes with two," he says, pointing at my feet. "Learn to use them." Got it. - Motor Trend on the 2006 Dodge Viper Coupe, November 2005

April 5th, 2005, 1:21 PM	#20
freakster_991 Joined: Nov 29th, 2004 Last Online: March 14th, 2010 Location: Kuala Lumpur,Malaysia Age: 22 Posts: 666 Car: 87 Corolla [EE90], 98 Civic JDM [EK8], no vtec yo Rep Power: 23	actually it is bad to rev the engine before shuttin down because u wanna keep the chamber free of the fuel as to save the engine oil...it also increases tiny particles inside the cylinder...you have to make the cylinders as clean as possible....revvin it makes it dirty __________________ phreaq inc. ® i couldn't spell, I can now! somewhat.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

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

Welcome to the FinalGear.com Forums!