discussion of immature fast shifting

Akurei · 02-16-2014, 05:14 PM

Like the title says, I ain't innocent on being an experienced driver but I know my flaws and what I do and the cause and effects.

So with that being said, did anybody ever went immature with their cars a few times, gave a little gas, high rev until the shift indicator came on and shifted gears with quickness instead of smoothly?

The gears and synchros went in smooth but due to not letting rev fall down to match the next gear, you let go of the gas while pushing in the clutch and dumping it into the next gear while synchronizing pushing the gas pedal to the floor. Yes I know this is being cruel to the car and also very "newbish".

Did you all ever get a pop sound in the front? I have two indications,

It is either one of the mounts slamming backwards or combustion in the exhaust pipe.

Any help gladly appreciated

Akurei · 02-16-2014, 05:18 PM

The car is fine by the way, I drive it like a baby where people think i'm a wussy for doing so but this is the 3rd time just giving it a stomp to the next gear and getting a pop in the front

This is in 2014 370z Base, with 900 miles

TerribleONE · 02-16-2014, 05:36 PM

Quote:

Originally Posted by Akurei

The car is fine by the way, I drive it like a baby where people think i'm a wussy for doing so but this is the 3rd time just giving it a stomp to the next gear and getting a pop in the front

This is in 2014 370z Base, with 900 miles

Is the car stock? My car would so this before I boosted it and now it doesn't.

Akurei · 02-16-2014, 06:11 PM

Yup its stock. I noticed quite a few posts regarding this sound, but nobody has identified the actual component or cause.

phunk · 02-16-2014, 06:15 PM

I have been full throttle shifting my 370 since the day I got it from the dealer. I used to not do it quite as often because it used to make a clunk noise when I did. The noise eventually went away. I believe that the clunk was from the 2-piece flywheel bottoming out. I believe the noise was gone after doing my turbo and clutch etc install. I cannot think of anything else I changed out that could have been making that noise. If you are not familiar with the VQ flywheel... The flywheels friction plate is suspended by springs.

Perhaps your description matches the clunk I was getting.

Akurei · 02-16-2014, 06:20 PM

Sounds legit, I am hoping that is what it is and that its not harming anything. Kinda iffy about running it hard because of this sound

TerribleONE · 02-16-2014, 06:30 PM

Quote:

Originally Posted by phunk

I have been full throttle shifting my 370 since the day I got it from the dealer. I used to not do it quite as often because it used to make a clunk noise when I did. The noise eventually went away. I believe that the clunk was from the 2-piece flywheel bottoming out. I believe the noise was gone after doing my turbo and clutch etc install. I cannot think of anything else I changed out that could have been making that noise. If you are not familiar with the VQ flywheel... The flywheels friction plate is suspended by springs.

Perhaps your description matches the clunk I was getting.

That would definitely make sense.

1slow370 · 02-16-2014, 06:30 PM

there isn't really an issue with power shifting so far as the pop goes but the synchros don't like it. the rings in the z trans have to be the slowest rings i've ever used, basically anything faster than grandma shifting at high rpm is less of using the synchros and more of just trying to jam the blocker ring in. the z's synchros suck ten bags of dicks

Rusty · 02-16-2014, 06:54 PM

If you shift by side-stepping the clutch pedal. You will get a bang in the dash from the pedal bouncing back against it's stop.

TerribleONE · 02-16-2014, 07:10 PM

Quote:

Originally Posted by Rusty

If you shift by side-stepping the clutch pedal. You will get a bang in the dash from the pedal bouncing back against it's stop.

Is that really what it was? I wonder why mine only did it going to 2nd then.

I don't get it now with my Specialty Z 6 puck. It seemed like it was coming more from the engine bay when mine used to do it.

Akurei · 02-16-2014, 07:21 PM

Dunno what side stepping is unless you mean heel to toe but isn't that just for the brake and gas? To be honest I was on a adrenaline rush so I wasn't paying attention to detail. That could possibly be it but I dont know if I dumped the clutch that hard to make it bounce, might have. I'll check next time, cause it did sounded like it was coming from below near the firewall

Akurei · 02-16-2014, 07:32 PM

Negative, no side stepping, this is with the vehicle already on 1st to second or second to 3rd. I never hold the clutch down burning the clutch nor the gas pedal to power shift. My foot comes backback with the clutch pedal

Rusty · 02-16-2014, 07:34 PM

Side-stepping is when you just catch part of the clutch pedal with the ball of your foot. Behind the big toe. Pushing down on the clutch pedal while shifting, and release it by sliding your foot off to the side. Letting the return spring slam the pedal home, instead of using your leg. When I used to dragrace back in the day. This is the method I used.

Akurei · 02-16-2014, 07:43 PM

Sounds fun haha. Must've been burning a lot of tire though. I dont have that much money to be grinding through tires

1slow370 · 02-16-2014, 07:46 PM

but just the warning shifting fast in a z does lead to lunched synchros

Edit:coming from a guy on his third trans.

02-16-2014, 05:14 PM	#1 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	discussion of immature fast shifting Like the title says, I ain't innocent on being an experienced driver but I know my flaws and what I do and the cause and effects. So with that being said, did anybody ever went immature with their cars a few times, gave a little gas, high rev until the shift indicator came on and shifted gears with quickness instead of smoothly? The gears and synchros went in smooth but due to not letting rev fall down to match the next gear, you let go of the gas while pushing in the clutch and dumping it into the next gear while synchronizing pushing the gas pedal to the floor. Yes I know this is being cruel to the car and also very "newbish". Did you all ever get a pop sound in the front? I have two indications, It is either one of the mounts slamming backwards or combustion in the exhaust pipe. Any help gladly appreciated

02-16-2014, 05:18 PM	#2 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	The car is fine by the way, I drive it like a baby where people think i'm a wussy for doing so but this is the 3rd time just giving it a stomp to the next gear and getting a pop in the front This is in 2014 370z Base, with 900 miles Last edited by Akurei; 02-16-2014 at 05:34 PM.

02-16-2014, 06:15 PM	#5 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	I have been full throttle shifting my 370 since the day I got it from the dealer. I used to not do it quite as often because it used to make a clunk noise when I did. The noise eventually went away. I believe that the clunk was from the 2-piece flywheel bottoming out. I believe the noise was gone after doing my turbo and clutch etc install. I cannot think of anything else I changed out that could have been making that noise. If you are not familiar with the VQ flywheel... The flywheels friction plate is suspended by springs. Perhaps your description matches the clunk I was getting. TerribleONE likes this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

02-16-2014, 06:30 PM	#8 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	there isn't really an issue with power shifting so far as the pop goes but the synchros don't like it. the rings in the z trans have to be the slowest rings i've ever used, basically anything faster than grandma shifting at high rpm is less of using the synchros and more of just trying to jam the blocker ring in. the z's synchros suck ten bags of dicks __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

02-16-2014, 06:54 PM	#9 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,190 Drives: 2011 Nismo GM 6M Rep Power: 2684437	If you shift by side-stepping the clutch pedal. You will get a bang in the dash from the pedal bouncing back against it's stop. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

02-16-2014, 06:11 PM	#4 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	Yup its stock. I noticed quite a few posts regarding this sound, but nobody has identified the actual component or cause.

02-16-2014, 06:20 PM	#6 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	Sounds legit, I am hoping that is what it is and that its not harming anything. Kinda iffy about running it hard because of this sound

02-16-2014, 07:21 PM	#11 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	Dunno what side stepping is unless you mean heel to toe but isn't that just for the brake and gas? To be honest I was on a adrenaline rush so I wasn't paying attention to detail. That could possibly be it but I dont know if I dumped the clutch that hard to make it bounce, might have. I'll check next time, cause it did sounded like it was coming from below near the firewall

02-16-2014, 07:32 PM	#12 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	Negative, no side stepping, this is with the vehicle already on 1st to second or second to 3rd. I never hold the clutch down burning the clutch nor the gas pedal to power shift. My foot comes backback with the clutch pedal

02-16-2014, 07:34 PM	#13 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,190 Drives: 2011 Nismo GM 6M Rep Power: 2684437	Side-stepping is when you just catch part of the clutch pedal with the ball of your foot. Behind the big toe. Pushing down on the clutch pedal while shifting, and release it by sliding your foot off to the side. Letting the return spring slam the pedal home, instead of using your leg. When I used to dragrace back in the day. This is the method I used. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

02-16-2014, 07:43 PM	#14 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	Sounds fun haha. Must've been burning a lot of tire though. I dont have that much money to be grinding through tires

02-16-2014, 07:46 PM	#15 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	but just the warning shifting fast in a z does lead to lunched synchros Edit:coming from a guy on his third trans. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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