better to over rev or under rev? - Page 2 - G35Driver - Infiniti G35 & G37 Forum Discussion

Sep 11, 2005 | 06:54 AM

#16

FAST1

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I've been reading this Board for only a couple of months but I have never seen so many guys who have problems shifting. I imagine that the G35 must be their first manual tranny, and it's not the easiest gear box to learn how to shift because of the engine's light fly wheel. If you get a car like an Audi A4 with its heavy flywheel, it's simple to shift but the downside is that the engine won't rev as quickly. Coming from an M3 which also has a light flywheel, the G35 is a breeze to shift for me.

Sep 11, 2005 | 02:31 PM

#17

mc2

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From: OC

Quote:

Originally Posted by FAST1

You are kidding me right?

You think a stock 24 lb flywheel is considered light?? Of 4 performance cars that i have owned, the G35 is the slowest revving and most sluggish flywheel i have driven yet.

Last edited by mc2; Sep 11, 2005 at 02:35 PM.

Sep 12, 2005 | 02:52 PM

#18

1BADV6

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From: Northern Kentucky

Yeah working the clutch smoothly seems to be the only part I really have a problem with now. This is indeed my first MT so I have had some learning to do. For the most part I have regular smooth shifts, fast shifts, and high RPM downshifts down for the most part, but downshifting to slow down is still a bit of an issue as well as the really low RPM 1-2 shift. I'm getting there after 5 months

Sep 12, 2005 | 02:58 PM

#19

sen_jen

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From: FIZZ INC. hawaii

our flywheels aren't exactly "light." also, remember to match rev whenever you're downshifting @ great mph.

Sep 12, 2005 | 06:06 PM

#20

][ron|2icE

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Quote:

Originally Posted by aerisolphaln

A couple of you guys, including the original poster, really need to learn how to drive MT's better. The G is not a hard car to drive stick in at all.

I'd be embarrassed to post such a thread.

For shame, mc2, for shame.

Wow this guy is too cool. Anyways, I've been driving stick for awhile and I too admit that the G is the hardest manual I've driven. I drove a honda for awhile and it was really easy and when I upgraded to the G I had to adjust to drive the car smoothly, the clutch is very unforgiving. Anyway, when I did get used to 2nd gear it drives smooth. I usually shift around 2500-3000rpm when in normal traffic and for me I had to wait a second for the rpm to drop to around 2k and then just ease the throttle in. The funny thing is I finally figured it out when I was a little tipsy, not drunk.

Sep 12, 2005 | 06:27 PM

#21

eyazdchi

GearheadsAnonymousFounder

Joined: Jun 2005

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From: Porter Ranch, CA

Quote:

Originally Posted by ][ron|2icE

The funny thing is I finally figured it out when I was a little tipsy, not drunk.

haha nice add on .... still shouldnt be driving that way either way, just thought it was funny the way u added that in. thanks for the laugh.

Sep 13, 2005 | 12:55 AM

#22

clinty

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Quote:

Originally Posted by mc2

So we all know how difficult the our 6MTs are to drive smoothly, especially that infamous second gear... I've been driving manual transmissions for some time now... but the G i still don't get it right on 100% of the time.. with second gear it's a lot of guessing and hit and miss and trial and error.

So you give x amount of gas at x point and you either under rev, over rev, or get it right on... I know they both put wear on the clutch, since the engine and clutch are spinning at different speeds so at the point of contact there will be some rubbing until they match speeds.. but i'm wondering which one puts more wear on the clutch?

The underreving definately FEELS like it's doing more damage since it makes your car jolt suddenly.. It's a lot easier for the clutch to slow the engine than ti is for the engine to slow the clutch since it has to slow the entire weight of the car as well...

Anybody know for sure?

So is this for everyday driving around at average to slow speeds or are your trying to go fast with the shifts?

If you are trying to go fast then it doesn't matter if the shift is jerky or not right? just pop the clutch and keep the revs close to the same as the prevous gear or overrev.

If you are taking thing easy then try to match to revs at second gear for the speed you are going before you let go of the clutch. IE if you can shift quick enough from 1st to 2nd then keep track of the revs before you push the clutch in then let the rev's drop by 5-600 rpm (or whatever the difference is between the gears) before letting it go in 2nd gear. With practice you can pop the clutch lose with each shift.

One other trick I found useful in smooth shifting is to let the gas pedal out slightly before pressing the clutch in for the next gear. IE try to have 0 torque on the tranny. This way when you press the clutch the engine doesn't "overrev" before the next shift.

Some people call this granny style driving.

Again, throttle control is an important factor.