All you enthusiastic drivers : Do NOT OVER-REVV

GTO · 17th May 2004, 23:04

Just came across these posts on the S2000 board, and was surprised that some S2000's have had to go in for a complete engine rebuild. Some of the cars were almost brand new, while some were fairly run...but none even close to what you would term as an end-of-its-life kinda engine.

After some further investigation, I also found lots of Corolla, Nissan, Mercedes and various other car owners who ended up with their engines seized after a bout of really aggressive driving. It doesnt matter if you didnt hit and bump off the revv-limiter..Even if you stayed at the red-line consistently...chances are your engine is already damaged.

Also do take a lot of care while downshifting or mis-shifting, especially when you are in a high rpm range. While you may intend to shift from 3rd to 4th and mistakenly end up in 2nd - You can say bye bye to your engine.

I am really surprised as I would have thought that the revv-limiter would be modestly set so even if you do bump of the limiter (when you engine feels like its jerking - fuel supply cut off), it wouldnt really damage your engine.

You have been warned. Respect your machinery and it will, in turn, respect you back.

This is a sample over-revved S2000 engine. Owner got more than his dose of Vtec'ing

GTO

shravan316 · 17th May 2004, 23:12

Wow!!!!

Its scary!!! would be even worse if the vehicle is a Bullet.. Engines just sieze and lock up throwing u on the road!!!

bevada · 17th May 2004, 23:33

god that scares me. I just came back from seaface and when i rev the bike to more than 6000 its making a clattering noise and i didnt even reach the red!
Reading that just scared the crap out of me. Its to the garage tom.

alap.

S350L-E240 · 18th May 2004, 02:35

Ouch....Haunted engine?

Rehaan · 18th May 2004, 14:26

Hey,

heres a pic i had on my comp.
This dude shifted from 4th to 3rd at 125mph.....!!!

cya
R

GTO · 18th May 2004, 19:01

I am certain Dippy remembers going down to second, instead of fourth....And this was after redlining!

GTO

shravan316 · 18th May 2004, 19:12

Quote:

Originally Posted by [b

Quote[/b] (Rehaan @ May 18 2004,12:56)]Hey,

heres a pic i had on my comp.
This dude shifted from 4th to 3rd at 125mph.....!!!

Woooow!!!

Power Freak · 18th May 2004, 21:12

Power Freak

jkdas · 7th March 2006, 12:23

now this frightens me. Dont we all petro heads rev too much?

5u3zEr0 · 7th March 2006, 12:37

If over revving is taking the car to 4000 to 5000rpm before upshifting then I do it nearly everyday....Please dont tell me that this will damage the engine? Coz I love driving this way. Whats the point in having a fast car if you cant rev it.

At the track recently, I was on the red band all the time and I downshifted once or twice at high revs from 3rd to 2nd, hope I didnt do any damage to the engine :O!

BUSA · 7th March 2006, 12:48

Man this is scary. When this can happen to the best engines in the world then what will happpen to other. Happened to me once i Shifted from 6700 RPM in second to 1st rather then 3 rd and the engine went crying i immediately dumped the clucth and moved on. Have done it with Santro the car jerked.

nitrous · 7th March 2006, 13:04

Using some engine-protector additive in the oil must help ,i guess.

5u3zEr0 · 7th March 2006, 13:07

Oh I forgot to mention that I blew the coolant hose and the track shaved my left front tyre

!

RX135 · 7th March 2006, 13:08

Quote:

Originally Posted by BUSA

Happened to me once i Shifted from 6700 RPM in second to 1st rather then 3 rd and the engine went crying i immediately dumped the clucth and moved on. Have done it with Santro the car jerked.

No offence meant, but just what the heck were you doing with Santro at 6700 rpm?

hrag · 7th March 2006, 13:10

Quote:

Originally Posted by RX135

No offence meant, but just what the heck were you doing with Santro at 6700 rpm?

I think we can ignore the 6700 rom, can't we? He shouldn't be doing anything with a Santro on the road in the first place at the age of 17.

17th May 2004, 23:04	#1
GTO Team-BHP Support Join Date: Feb 2004 Location: Bombay Posts: 70,512 Thanked: 300,678 Times View My Garage	All you enthusiastic drivers : Do NOT OVER-REVV Just came across these posts on the S2000 board, and was surprised that some S2000's have had to go in for a complete engine rebuild. Some of the cars were almost brand new, while some were fairly run...but none even close to what you would term as an end-of-its-life kinda engine. After some further investigation, I also found lots of Corolla, Nissan, Mercedes and various other car owners who ended up with their engines seized after a bout of really aggressive driving. It doesnt matter if you didnt hit and bump off the revv-limiter..Even if you stayed at the red-line consistently...chances are your engine is already damaged. Also do take a lot of care while downshifting or mis-shifting, especially when you are in a high rpm range. While you may intend to shift from 3rd to 4th and mistakenly end up in 2nd - You can say bye bye to your engine. I am really surprised as I would have thought that the revv-limiter would be modestly set so even if you do bump of the limiter (when you engine feels like its jerking - fuel supply cut off), it wouldnt really damage your engine. You have been warned. Respect your machinery and it will, in turn, respect you back. This is a sample over-revved S2000 engine. Owner got more than his dose of Vtec'ing GTO
	() Thanks

17th May 2004, 23:12	#2
shravan316 Senior - BHPian Join Date: Apr 2004 Location: Bangalore Posts: 1,029 Thanked: 9 Times	Wow!!!! Its scary!!! would be even worse if the vehicle is a Bullet.. Engines just sieze and lock up throwing u on the road!!!
	() Thanks

17th May 2004, 23:33	#3
bevada Newbie Join Date: Apr 2004 Location: Mumbai Posts: 21 Thanked: 0 Times	god that scares me. I just came back from seaface and when i rev the bike to more than 6000 its making a clattering noise and i didnt even reach the red! Reading that just scared the crap out of me. Its to the garage tom. alap.
	() Thanks

18th May 2004, 02:35	#4
S350L-E240 Senior - BHPian Join Date: Apr 2004 Location: India Posts: 1,416 Thanked: 393 Times	Ouch....Haunted engine?
	() Thanks

18th May 2004, 14:26	#5
Rehaan Team-BHP Support Join Date: Feb 2004 Location: Bombay Posts: 24,042 Thanked: 34,074 Times	Hey, heres a pic i had on my comp. This dude shifted from 4th to 3rd at 125mph.....!!! cya R
	() Thanks

18th May 2004, 19:01	#6
GTO Team-BHP Support Join Date: Feb 2004 Location: Bombay Posts: 70,512 Thanked: 300,678 Times View My Garage	I am certain Dippy remembers going down to second, instead of fourth....And this was after redlining! GTO
	() Thanks

18th May 2004, 21:12	#8
Power Freak BHPian Join Date: Mar 2004 Location: Mumbai Posts: 75 Thanked: 16 Times	Power Freak
	() Thanks

7th March 2006, 12:23	#9
jkdas Senior - BHPian Join Date: Sep 2005 Location: Thiruvananthapu Posts: 9,687 Thanked: 1,492 Times View My Garage	now this frightens me. Dont we all petro heads rev too much?
	() Thanks

7th March 2006, 12:37	#10
5u3zEr0 BHPian Join Date: May 2005 Location: Madras Posts: 379 Thanked: 3 Times	If over revving is taking the car to 4000 to 5000rpm before upshifting then I do it nearly everyday....Please dont tell me that this will damage the engine? Coz I love driving this way. Whats the point in having a fast car if you cant rev it. At the track recently, I was on the red band all the time and I downshifted once or twice at high revs from 3rd to 2nd, hope I didnt do any damage to the engine :O!
	() Thanks

7th March 2006, 12:48	#11
BUSA Senior - BHPian Join Date: Aug 2005 Location: Bombay Posts: 5,130 Thanked: 20 Times View My Garage	Man this is scary. When this can happen to the best engines in the world then what will happpen to other. Happened to me once i Shifted from 6700 RPM in second to 1st rather then 3 rd and the engine went crying i immediately dumped the clucth and moved on. Have done it with Santro the car jerked.
	() Thanks

7th March 2006, 13:04	#12
nitrous Senior - BHPian Join Date: May 2004 Location: UAE/Lon/Madras Posts: 6,965 Thanked: 325 Times View My Garage	Using some engine-protector additive in the oil must help ,i guess.
	() Thanks

7th March 2006, 13:07	#13
5u3zEr0 BHPian Join Date: May 2005 Location: Madras Posts: 379 Thanked: 3 Times	Oh I forgot to mention that I blew the coolant hose and the track shaved my left front tyre !
	() Thanks