Rev in Red zone

Supremo · 10-24-2009, 03:17 PM

Hi guys ! ( I am Hungarian so please forgive me my poor English)

So, accidentally a shifted back to 3 rd when I was running too fast and for a second - or maybe less - the rev went to the red zone. Is that dangerous if it stays at 8 000 rpm for second or a half ?
(Of course it a 370 Z..)

Matt · 10-24-2009, 03:22 PM

I can't imagine that a second or two in the 7500-9000 RPM range would permanently cause any harm. However, I'm not a mechanic, so my opinion is just that.

Island_370 · 10-24-2009, 03:23 PM

Is our engine an interference motor?

Supremo · 10-24-2009, 03:26 PM

Thank you for answering.

What is interference motor ? It is 370Z AT7.

Supremo · 10-24-2009, 03:27 PM

Thanks Matt.

This is what I hope... I like too much her and I was blaming myself to be stupid and accidentally shift back...

ChrisSlicks · 10-24-2009, 03:52 PM

8000 is fine, in fact many have advanced their normal red-line to 8000 rpm. Even 9000 for a few seconds without any load isn't likely to any harm.

Matt · 10-24-2009, 03:54 PM

Quote:

Originally Posted by Supremo

Thanks Matt.

This is what I hope... I like too much her and I was blaming myself to be stupid and accidentally shift back...

Don't beat yourself up. Trust me, a lot of drivers out there are treating their Z a lot less cautious than you are. Sounds like she's in good hands.

Supremo · 10-24-2009, 04:09 PM

Thanks ChrisSlicks and Matt !

Yes, I keep an eye on her but telling you the truth sometimes I cannot resist to play with her at higher revs - but not 8 000 or similar...

So, It was very good to hear that I did not make a harmful action on her..

Matt · 10-24-2009, 04:14 PM

Quote:

Originally Posted by Supremo

Thanks ChrisSlicks and Matt !

Yes, I keep an eye on her but telling you the truth sometimes I cannot resist to play with her at higher revs - but not 8 000 or similar...

So, It was very good to hear that I did not make a harmful action on her..

I have a quite a bit of fun, and I'm still "scared" to go over 5k rpm. Once I hit a few hundred miles, I'll let loose a little more.

Supremo · 10-24-2009, 04:18 PM

So, you are even more careful than me ! I cannot resist unfortunately... BUt the 7500 rpm for me an important barrier not to be over, however I guessed that even 8000 is not harmful as Chris stated...

Supremo · 10-24-2009, 04:19 PM

Understood, yours is so new !!! Now it is obvious why you are careful...

kannibul · 10-24-2009, 04:49 PM

Quote:

Originally Posted by Supremo

Thank you for answering.

What is interference motor ? It is 370Z AT7.

As far as I know, the 7AT won't downshift to a gear that would put the engine above the redline - more than likely your RPM gauge needs adjustment or something.

Supremo · 10-24-2009, 04:57 PM

Hm.. Interesting... It seems for me now as I try to remember that the car adjusted itself indeed as suddenly the power dropped but I remember well that I have seen the pointer in red zone...

Supremo · 10-24-2009, 04:58 PM

...however the interval I have seen it there was very short. Maybe half a second or less.

cjof2003 · 10-24-2009, 05:24 PM

500rpms over the redline probably won't cause any issues.
I don't know how the 370z motor is, but if it went past 8k you could bend a valve, bend a rod or a number of other issues.

10-24-2009, 03:17 PM	#1 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	Rev in Red zone Hi guys ! ( I am Hungarian so please forgive me my poor English) So, accidentally a shifted back to 3 rd when I was running too fast and for a second - or maybe less - the rev went to the red zone. Is that dangerous if it stays at 8 000 rpm for second or a half ? (Of course it a 370 Z..)

10-24-2009, 03:23 PM	#3 (permalink)
Island_370 Base Member Join Date: Jun 2009 Location: Puerto Rico Posts: 228 Drives: 09 Nissan 370Z SR M6 Rep Power: 15	Is our engine an interference motor? __________________ Autobahn Country Club (North and South Tracks), Blackhawk Farms, Grattan, Gingerman, Mid-Ohio, Putnam Park, Road America, Sears Point, Thunderhill, VIR and "The Ring"

10-24-2009, 03:22 PM	#2 (permalink)
Matt A True Z Fanatic Join Date: Oct 2009 Location: Augusta, GA Age: 41 Posts: 1,680 Drives: 2010 Avalanche LT Rep Power: 18	I can't imagine that a second or two in the 7500-9000 RPM range would permanently cause any harm. However, I'm not a mechanic, so my opinion is just that.

10-24-2009, 03:26 PM	#4 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	Thank you for answering. What is interference motor ? It is 370Z AT7.

10-24-2009, 03:27 PM	#5 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	Thanks Matt. This is what I hope... I like too much her and I was blaming myself to be stupid and accidentally shift back...

10-24-2009, 03:52 PM	#6 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	8000 is fine, in fact many have advanced their normal red-line to 8000 rpm. Even 9000 for a few seconds without any load isn't likely to any harm.

10-24-2009, 04:09 PM	#8 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	Thanks ChrisSlicks and Matt ! Yes, I keep an eye on her but telling you the truth sometimes I cannot resist to play with her at higher revs - but not 8 000 or similar... So, It was very good to hear that I did not make a harmful action on her..

10-24-2009, 04:18 PM	#10 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	So, you are even more careful than me ! I cannot resist unfortunately... BUt the 7500 rpm for me an important barrier not to be over, however I guessed that even 8000 is not harmful as Chris stated...

10-24-2009, 04:19 PM	#11 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	Understood, yours is so new !!! Now it is obvious why you are careful...

10-24-2009, 04:57 PM	#13 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	Hm.. Interesting... It seems for me now as I try to remember that the car adjusted itself indeed as suddenly the power dropped but I remember well that I have seen the pointer in red zone...

10-24-2009, 04:58 PM	#14 (permalink)
Supremo Base Member Join Date: Oct 2009 Location: Hungary Posts: 14 Drives: NIssan -2009 - 370Z Rep Power: 15	...however the interval I have seen it there was very short. Maybe half a second or less.

10-24-2009, 05:24 PM	#15 (permalink)
cjof2003 Base Member Join Date: Sep 2009 Location: Atlanta, GA Posts: 74 Drives: 02 Acura RSX Type S Rep Power: 15	500rpms over the redline probably won't cause any issues. I don't know how the 370z motor is, but if it went past 8k you could bend a valve, bend a rod or a number of other issues.