discussion of immature fast shifting

Akurei · 02-16-2014, 07:08 PM

Really? That kinda sucks. I don't hear them grinding at all. Just hearing the click of them engaging since the tranny is right underneath the center console. I do have the 7 year warranty though

1slow370 · 02-16-2014, 07:44 PM

yeah eventually you notice second and third gear take a while to come up to speed and get notchier if you force them, then it all snowballs from there.

phunk · 02-17-2014, 01:53 PM

my 350z trans lasted about 60,000 miles before it had a problem. Well, the original trans was replaced at a couple thousand miles as defective, but then the replacement went on forever. My 370z trans is coming up on 60,000, no grinding or notchiness or anything.. smooth as silk minus a scratchy 5th gear which it has had forever. I only full throttle shift into it occasionally as most challengers dont want to continue at those speeds. I know these transmissions are not the greatest, but they arent as bad as people say. My 370z trans loves rapid full throttle shifting. It is rather difficult to master the timing on the 1-2 shift, but otherwise 5th gear is the only one that complains to me. Even just driving low RPM around town i have to pause briefly between taking it out of 4th, before going into 5th, or it will scratch. I am still on factory fill trans fluid.

TerribleONE · 02-17-2014, 02:25 PM

Quote:

Originally Posted by phunk

my 350z trans lasted about 60,000 miles before it had a problem. Well, the original trans was replaced at a couple thousand miles as defective, but then the replacement went on forever. My 370z trans is coming up on 60,000, no grinding or notchiness or anything.. smooth as silk minus a scratchy 5th gear which it has had forever. I only full throttle shift into it occasionally as most challengers dont want to continue at those speeds. I know these transmissions are not the greatest, but they arent as bad as people say. My 370z trans loves rapid full throttle shifting. It is rather difficult to master the timing on the 1-2 shift, but otherwise 5th gear is the only one that complains to me. Even just driving low RPM around town i have to pause briefly between taking it out of 4th, before going into 5th, or it will scratch. I am still on factory fill trans fluid.

I can only dream my motor / trans holds up as well as yours man. You have had some great luck with it

phunk · 02-17-2014, 04:00 PM

I dont think its luck! I think the car is built a little tougher than people think, and I think I do really good work on the install/builds!

Akurei · 02-17-2014, 04:36 PM

Welllll, i have verified. It is the clutch pedal slamming haha. Suprised i didnt catch that. I dont side step but i let off the clutch a little fast at the end when stomping it. Well that is a relief. I agree about any car i owned, 1-2 is the hardest to transition smoothly everytime. I'll make the car jerk back and forth every now and then

1slow370 · 02-17-2014, 09:04 PM

oh the trans is built like a swedish brick somethin, its just the synchros leave A LOT to be desired.

phunk · 02-17-2014, 09:32 PM

Thats the only thing I have ever seen give any grief aside from occasional 3rd gear splitting. There is a member here that broke off his input shaft though.

1slow370 · 02-17-2014, 09:59 PM

i've wondered if the reason that the synchros have so much of an issue with high rpm shifting on this car is precisely because the trans is built so heavy. lighter smaller gearsets would be less mass the synchro's would have to deal with.

1slow370 · 02-17-2014, 10:00 PM

Quote:

Originally Posted by phunk

Thats the only thing I have ever seen give any grief aside from occasional 3rd gear splitting. There is a member here that broke off his input shaft though.

yeah but that was squeeze, I can't remember if he was over 700 wheel at the time.

02-16-2014, 07:44 PM	#17 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	yeah eventually you notice second and third gear take a while to come up to speed and get notchier if you force them, then it all snowballs from there. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

02-17-2014, 01:53 PM	#18 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	my 350z trans lasted about 60,000 miles before it had a problem. Well, the original trans was replaced at a couple thousand miles as defective, but then the replacement went on forever. My 370z trans is coming up on 60,000, no grinding or notchiness or anything.. smooth as silk minus a scratchy 5th gear which it has had forever. I only full throttle shift into it occasionally as most challengers dont want to continue at those speeds. I know these transmissions are not the greatest, but they arent as bad as people say. My 370z trans loves rapid full throttle shifting. It is rather difficult to master the timing on the 1-2 shift, but otherwise 5th gear is the only one that complains to me. Even just driving low RPM around town i have to pause briefly between taking it out of 4th, before going into 5th, or it will scratch. I am still on factory fill trans fluid. TerribleONE and Stright_Drop like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph Last edited by phunk; 02-17-2014 at 01:55 PM.

02-17-2014, 04:00 PM	#20 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	I dont think its luck! I think the car is built a little tougher than people think, and I think I do really good work on the install/builds! __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

02-17-2014, 09:04 PM	#22 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	oh the trans is built like a swedish brick somethin, its just the synchros leave A LOT to be desired. phunk likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

02-17-2014, 09:32 PM	#23 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	Thats the only thing I have ever seen give any grief aside from occasional 3rd gear splitting. There is a member here that broke off his input shaft though. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

02-16-2014, 07:08 PM	#16 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 12	Really? That kinda sucks. I don't hear them grinding at all. Just hearing the click of them engaging since the tranny is right underneath the center console. I do have the 7 year warranty though

02-17-2014, 04:36 PM	#21 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 12	Welllll, i have verified. It is the clutch pedal slamming haha. Suprised i didnt catch that. I dont side step but i let off the clutch a little fast at the end when stomping it. Well that is a relief. I agree about any car i owned, 1-2 is the hardest to transition smoothly everytime. I'll make the car jerk back and forth every now and then

02-17-2014, 09:59 PM	#24 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	i've wondered if the reason that the synchros have so much of an issue with high rpm shifting on this car is precisely because the trans is built so heavy. lighter smaller gearsets would be less mass the synchro's would have to deal with. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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