driving manual hard

zippin · 07-18-2010, 06:32 AM

Quote:

Originally Posted by jacknismo

I'm a newb to manual....

Is it ok to constantly switch gears at nearly redline on each gear?

I love speed!

Also, is it ok to cruise on the highway on 3rd or 4th gear the whole time???
i dont care for fuel economy... i just want to rag the hell out of my nismo but not harm the engine...

My nismo is a month old and has 3000 miles already!

This is why I don't buy used sports cars....

m4a1mustang · 07-18-2010, 08:33 AM

A tune can bump the rev limiter up a bit. Someone here was running to 8100 RPM.

Hi-Step'n370Z · 07-18-2010, 08:52 AM

Quote:

Originally Posted by m4a1mustang

A tune can bump the rev limiter up a bit. Someone here was running to 8100 RPM.

Thanks m4a1mustang for the reply.

Yes, now that you said it, that's what I remember hearing, the "rev limiter."
I was under the belief that the rev limiter will prevent the driver from blowing the engine because of high revs - BY MISTAKE - OR ONLY ONCE IN A WHILE.

Does the rev limiter actually prevent this by not allowing the engine to rev high enough to cause a problem?

m4a1mustang · 07-18-2010, 08:55 AM

Quote:

Originally Posted by Hi-Step'n370Z

Thanks m4a1mustang for the reply.

Yes, now that you said it, that's what I remember hearing, the "rev limiter."
I was under the belief that the rev limiter will prevent the driver from blowing the engine because of high revs - BY MISTAKE - OR ONLY ONCE IN A WHILE.

Does the rev limiter actually prevent this by not allowing the engine to rev high enough to cause a problem?

If you are accelerating and forget to shift on time, yes, the limiter will kick in and keep you from over revving the engine. The limiter, however, will not save your butt if you accidentally shift from second to first instead of third.

Hi-Step'n370Z · 07-18-2010, 09:27 AM

Quote:

Originally Posted by m4a1mustang

If you are accelerating and forget to shift on time, yes, the limiter will kick in and keep you from over revving the engine. The limiter, however, will not save your butt if you accidentally shift from second to first instead of third.

Got it! Thanks.

I want to address this happening with the 7 speed auto:

Since this is something I do not want to replicate to find out, I instead have just been very careful and aware when I switch over to manual mode, and down shift.

It would seem that when you're cruising at highway speed, then slide over to manual mode, and your in 7th, or maybe 6th, the gear you're in would not change, but it DOES. It does not simply change to manual mode, and stay in the gear you were presently in before switching over to manual.

At normal highway speeds, it always goes to 5th gear the moment you slide over to manual. I do not know if you are already in 5th, and you switch over, what gear you're in, but I will gently try it and find out.

My point here is that if you "think" you're still in 7th, but you're really in 6th, or maybe even 5th, and you want to down shift into say 3rd, but you're not looking at the gear indicator window, and the tach at the same time, and pop the shifter 3 times, BOOM -you're all the way down to 2nd, and have revved well into the red line zone in a millisecond!

Talk about getting caught off guard! What a surprise that is.

When this happened, I have found is there is an instant decrease in power, and an intermittent surging of the engine. That is what I thought was the rev limiter doing it's job.

But, as you indicate, you're already into red line when that happens, but I don't think you're in far enough or long enough to do any damage to the engine, and the engine won't let you continue to accelerate thanks to the rev limiter.

To me, the answer was to "learn the Z" and practice by really watching the gear window, and note the speed you're traveling at the time of down shift.

SkyZ · 07-18-2010, 11:35 PM

Quote:

Originally Posted by Hi-Step'n370Z

Got it! Thanks.

I want to address this happening with the 7 speed auto:

Since this is something I do not want to replicate to find out, I instead have just been very careful and aware when I switch over to manual mode, and down shift.

It would seem that when you're cruising at highway speed, then slide over to manual mode, and your in 7th, or maybe 6th, the gear you're in would not change, but it DOES. It does not simply change to manual mode, and stay in the gear you were presently in before switching over to manual.

At normal highway speeds, it always goes to 5th gear the moment you slide over to manual. I do not know if you are already in 5th, and you switch over, what gear you're in, but I will gently try it and find out.

My point here is that if you "think" you're still in 7th, but you're really in 6th, or maybe even 5th, and you want to down shift into say 3rd, but you're not looking at the gear indicator window, and the tach at the same time, and pop the shifter 3 times, BOOM -you're all the way down to 2nd, and have revved well into the red line zone in a millisecond!

Talk about getting caught off guard! What a surprise that is.

When this happened, I have found is there is an instant decrease in power, and an intermittent surging of the engine. That is what I thought was the rev limiter doing it's job.

But, as you indicate, you're already into red line when that happens, but I don't think you're in far enough or long enough to do any damage to the engine, and the engine won't let you continue to accelerate thanks to the rev limiter.

To me, the answer was to "learn the Z" and practice by really watching the gear window, and note the speed you're traveling at the time of down shift.

i believe 7at even in manual mode wont let u shift down if ur revs are too high. it just wont let you.

KaienZ34 · 07-18-2010, 09:45 AM

With the 7AT in normal D mode you don't have to switch to M mode too use the shifters just hit the down shift side and your good to go.

Hi-Step'n370Z · 07-18-2010, 09:56 AM

Quote:

Originally Posted by KaienZ34

With the 7AT in normal D mode you don't have to switch to M mode too use the shifters just hit the down shift side and your good to go.

Thanks, I'll try that. Seems more reliable and fail safe.

I am curious to see if the first down shift will place me in 6th, or 5th gear though.

Just don't want to bang it into 2nd by mistake because I think I am in a higher gear than I am.

LunaZ · 07-18-2010, 09:55 AM

I'm in for a set of Nismo wheels.

PapoZalsa · 07-18-2010, 01:03 PM

Quote:

Originally Posted by LunaZ

I'm in for a set of Nismo wheels.

Me too!

sonic370 · 07-18-2010, 06:51 PM

We've just been punked

The BlueMax · 07-18-2010, 11:14 PM

Lets let Jockamo do his thing, Atlanla is competitive town as far as commuting. Will see how durable the Zs drivetrain is after he's finished, who knows he might get good warrenty work done, especially if he payed too much for the car

cruzmisl · 07-19-2010, 12:44 AM

Quote:

Originally Posted by sonic370

We've just been punked

probably someone from bimmerforums

trent1331 · 07-19-2010, 01:28 AM

trolls

everywhere.

blastman5 · 07-19-2010, 04:17 AM

i cant quite tell if this was meant to start a riot or if this was a legit question?? i dont think we will ever know....

07-18-2010, 08:33 AM	#2 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	A tune can bump the rev limiter up a bit. Someone here was running to 8100 RPM. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

07-18-2010, 09:45 AM	#7 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 178	With the 7AT in normal D mode you don't have to switch to M mode too use the shifters just hit the down shift side and your good to go. __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

07-18-2010, 09:55 AM	#9 (permalink)
LunaZ A True Z Fanatic Join Date: Mar 2010 Location: Vagabond Posts: 6,704 Drives: Project: a white one Rep Power: 513	I'm in for a set of Nismo wheels. __________________ 2009 370Z Sport/Touring/Navigation \| see my journal for mods facebook: Be my friend... or not.

07-18-2010, 11:14 PM	#12 (permalink)
The BlueMax Enthusiast Member Join Date: Jan 2010 Location: Louisville Posts: 337 Drives: 09 370/97 T/A 01 ZRX Rep Power: 26	Lets let Jockamo do his thing, Atlanla is competitive town as far as commuting. Will see how durable the Zs drivetrain is after he's finished, who knows he might get good warrenty work done, especially if he payed too much for the car __________________ The Blue Max

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