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Infiniti G35 Manual Transmissions

55 messages,  Last post on Aug 15, 2009 at 9:48 PM

You are in the Infiniti G35 Forum. Your Hosts are pat & karens

What is this discussion about? Infiniti G35, Transmission, Coupe, Sedan


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#1 of 55
Infiniti G35 Manual Transmissions by nefariousbc
Feb 24, 2007 (2:01 pm)
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I thought I would start a thread on the 6 speed standard for all past, present, and potential future owners of a G35. I just got a 07 sport sedan with the 6-speed and I absolutely love it. BUT, it's taking me forever to get my shifts in smoothly. More specifically, I'm having alot of trouble shifting from 1st to 2nd smoothly without letting the clutch out very very slowly. I have gotten used to takeoffs and am fine with anything above 3rd, but I need some help with the 1st to 2nd shift. Any suggestions from fellow G35 drivers?
#2 of 55
Posted this other room /..6MT vibration by jmannix
Feb 25, 2007 (11:34 am)
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Is the amount of vibration in the stick a quirk or a problem?
#3 of 55
Re: Infiniti G35 Manual Transmissions [nefariousbc] by im_spartacus
Mar 01, 2007 (2:52 pm)
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Replying to: nefariousbc (Feb 24, 2007 2:01 pm)

I've got an '06 G35MT Coupe and I had similar problems. My clutch loosened up around 2-3k miles and didn't feel great until about 9-10k. At 12k the clutch is really smooth and I don't feel any of the tight near jerkiness it had when it was new.
#4 of 55
Re: Infiniti G35 Manual Transmissions [im_spartacus] by nefariousbc
Mar 01, 2007 (5:34 pm)
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Replying to: im_spartacus (Mar 01, 2007 2:52 pm)

Man..you just made my day. I'm at 1700+ miles and I was beginning to wonder if I would ever get this down. Anyway, this spells relief for me. This car is also the first stick I have ever driven...probably not the easiest to learn on, but never the less an awesome car to drive.
#5 of 55
I've heard by dhamilton
Mar 01, 2007 (7:01 pm)
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the problem is that the clutch is really hard to operate in a smooth manner. IOW, the take up, and where it engages is in a funky place.
 
I haven't driven it yet to know for myself, but does that sound plausible?
#6 of 55
Re: I've heard [dhamilton] by nefariousbc
Mar 02, 2007 (8:24 am)
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Replying to: dhamilton (Mar 01, 2007 7:01 pm)

Yes I would agree. There are a couple of things that I've noticed driving this car for the past 3 months or so.
 
First, like you said, the clutch pedal engages really high off the floor...which is awkward for most people. It's almost like you're encouraged to just tap the clutch rather than push it in all the way between shifts.
 
Secondly, in lower gears (namely 1st and 2nd), the RPMS drop pretty fast between shifts. This always encouraged me to give some extra gas to compensate. However, since you're playing with a rev-happy 306 HP engine, a "little" extra gas can jolt the car forward.
 
The combination of the above factors make it really hard to get smooth takeoffs from either 1st or 2nd gear. It can be done...but it requires way too much effort in my opinion. That's why I was very happy to hear that the clutch eventually loosens up some around 9-12k miles. Personally, I've gotten used a little bit of a rocky start. It bothers me more when I've got other ppl in the car.
#7 of 55
Re: I've heard [nefariousbc] by g35mc
Mar 02, 2007 (11:24 am)
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Replying to: nefariousbc (Mar 02, 2007 8:24 am)

This gives me some difficulty at times as well. However, it just takes a bit of practice. The one thing to be aware of is that if your G hasn't been driven for 8-12hours it will be more rocky than normal due to the high rpm idle (1.5-2.5k depending on where you live).
 
There's a couple things that will help from 1st->2nd shifts and driving:
 
1) The gas peddal in the G35 is most sensitive at the BOTTOM, not the top. While it may take some getting used to and will be a bit uncomfortable at first, try using your entire foot on the peddal (toes at the top and heel towards the bottom). I read this somewhere else here and it made a big different for both low gear shifting and driving.
 
2) When shifting from 1st->2nd I usually shift between 3k-4k rpm as the RPMs drop quickly in these gears. When you are shifting from 1st->2nd don't feel that you have to push the clutch all the way in, otherwise it will always be a rough shift.
 
3) Pull the shifter down quickly from 1st to 2nd, although it may not be the best way to shift, it definately helps if you pull it quickly down into 2nd as the RPMs drop fast.
 
4) I swear the harder I try to make a smooth shift the worse the shift actually is. It's all in your head! The key is to push the clutch in just to the point where it pops out quickly. With practice, good timing, and some luck your 1st->2nd gear shifts should improve.
#8 of 55
Re: I've heard [g35mc] by jagguar
Mar 02, 2007 (1:16 pm)
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Replying to: g35mc (Mar 02, 2007 11:24 am)

Are most of you guys new to driving a manual? The clutch is different in every car. I'll admit the clutch in this car is unique. It almost feels like they used a sports clutch but then added something to keep it from stalling too easily. It's weird, because it does feel like a sports clutch, but like I said, it's not easy to stall it.
 
Any new clutch takes some getting used to. Take an hour one day and find an empty parking lot and just keep starting and stopping to get used to the clutch. You have to get used to where the "catch point" is and also learn to control your right foot. It takes some practice, but hold down the clutch and push the gas a little and try to hold it at 2000 rpms. Then try to hold the gas down at 3000 rpms. Then again at 4000. Once you can get the hang of this, try to start by holding the gas at 2000 rpms, and then as you disengage the clutch, very slowly increase the gas.
 
It's very possible to have a smooth takeoff in this car. You just have to take the time and teach yourself how to do it.
#9 of 55
jagguar's got it right by bobzg
Mar 07, 2007 (5:26 pm)
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Replying to: jagguar (Mar 02, 2007 1:16 pm)

It just takes a little while to adjust to the clutch. On the testdrive I warned the salesman about my coffee spilling, but he insisted it had cupholders. The coffee was spilling before we got out of the parking lot. (good thing I bought the black one) But after driving the G for a couple days it's real smooth and my civic SI feels like the awkward clutch. My pap's says the clutch is smiliar to previous 300Z's with a real low engage. On the civic it connects almost all the way out. The stick does vibrate a little bit, but it's not as drastic as some might believe. So far the car has been a dream.
#10 of 55
Re: jagguar's got it right [bobzg] by g35mc
Mar 09, 2007 (11:39 am)
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Replying to: bobzg (Mar 07, 2007 5:26 pm)

I just hit 900 miles today on my '07 G35 6MT. It's been a few days since I've driven it, and I noticed today that the clutch /shifting felt extremely smooth. I believe it's starting to break itself in nicely and just the practice I've had over the past month has alleviated all my fears about the clutch and transmission I had before purchasing the car.
 
Another thing that I suggest if people are still having trouble with the clutch or jerky shifts is to take your ride out in city streets with a lot of stop and goes. The 1st->3rd gear shifting is the main problem area and again all it takes is practice.

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