Built Manual Transmission

LafitteZ · 04-23-2012, 01:15 PM

yep it cost me much less then a new trans. Like my mechanic said the trans will be much tighter and much stronger because of all the little things that go into it he himself will be the one putting it together and not on some assembly line somewhere so he will pay much more attention to detail. As for the synchros this car is my daily driver so I drive minimum 50 miles a day so they will get tested and not to mention its boosted and I dont believe in driving a 600 horse power car like ms daisy so im probably the best candidate for this test. after feeling it and driving it I think I could drive it till the wheels fall off but wel see.

LafitteZ · 04-23-2012, 01:17 PM

Quote:

Originally Posted by LafitteZ

yep there are aftermarket gearsets but there realllyyyy expensive. I can do some research for ya. That would be a really good idea for the guys with the rear end gears like you. you could get your hwy mpg back.

Yes there are taller ratios but just to do the gear it wouldnt be worth tearing the tranny down but if we were to tear it down perhaps to do the synchros or a rebuild then it may be worth it since its apart already. What is your main reason for wanting the taller ratio? Im sure probably for gas mileage right?

Tickwomp · 04-23-2012, 03:12 PM

Quote:

Originally Posted by LafitteZ

Yes there are taller ratios but just to do the gear it wouldnt be worth tearing the tranny down but if we were to tear it down perhaps to do the synchros or a rebuild then it may be worth it since its apart already. What is your main reason for wanting the taller ratio? Im sure probably for gas mileage right?

1st to 2nd sucks when I'm in it hard so any improvements there would be awesome. A taller 6th would be nice to get highway MPG back.

LafitteZ · 04-23-2012, 06:46 PM

then take the 4.08 gears out of the rear and put the oem ones back in it. or do a 3.9 gear in the rear.

LafitteZ · 04-23-2012, 06:49 PM

The gear sets are pretty expensive. One would wonder if you could use a taller gear setup from a different nissan but that takes a ton of research. The after market os giken gear sets are like 3000 just for gears which are absolutly a rip off but thats what it is. So only idea to keep cost down would be to mabe use a taller gearset from another nissan car but if I were you id just go down to i think its a 3.9 ring and pinion.

DIGItonium · 04-25-2012, 12:55 AM

Quote:

Originally Posted by ChrisSlicks

FYI a new transmission from Nissan is around $3000. A rebuild with better parts sounds like a much better option.

It's a tad over $1600, but I imagine labor is around $700.

LafitteZ · 04-25-2012, 08:53 AM

Quote:

Originally Posted by DIGItonium

It's a tad over $1600, but I imagine labor is around $700.

It really depends exactly whats going on with the trans. Like mine had some pretty serious issues for instance. My shift forks were bent and the gears were grinding on each other and I had an over heating problem so it was pretty messed up so all those extra parts cost extra money but if your car has a grind but shifts fine in all the other gears all youll probably need is the bad *** syncros I have and possibly that one gear that was grinding and of course well put a few tricks into the shift positioning so it shifts much better. So your probably looking at around 1500 to 2000 range. My mechanic builds track zs so hes always got something up his sleeve that he learned from building these trannys. I was laughing because he calleb me up and said he hates me because hes going build a spec 370z because he had a blast driving my 370 lolololol

LafitteZ · 07-03-2012, 09:20 PM

Sry Iv been busy and really havnt had much time to update this thread. I'm about 5000 miles in and the trans feels solid even wayyyyy better then it did out the factory. Now the only thing is it no longer feels or sounds like a factory tranny. When you go to shift it that mutha shifts. The Kevlar synchros are unbelievable. You can feel it engage and release. Now unfortunately it isn't smooth anymore but I drive it daily and it isn't bad at all. I'm running 560 WHP and when I step on it and shift it has no hesitation at all. It almost makes you shift to the next gear because of the spring mods he also does to it. The shifter actually feels like it pulls itself into gear. All in all so far I love it. It does have a little bit higher whine sound but nothing even close to being unbearable.

Mitco39 · 05-15-2013, 11:31 PM

What shop did all the work? What were the details behind the upgrade (beside ford syncros),

takjak2 · 05-16-2013, 02:48 PM

in for part numbers

Rusty · 05-16-2013, 07:15 PM

Quote:

Originally Posted by Mitco39

What shop did all the work? What were the details behind the upgrade (beside ford syncros),

2X!

LafitteZ · 05-17-2013, 05:53 AM

I tryed to do a run of those synchros about a year ago and no one showed any interest so i just dropped it. Im still running the setup with no problems so far. I really dont know anything about the parts. The mechanic who did the work knew something. Everybody shut me down when I was going to try to get a few made. These are one off parts not sold to the public. They were from some race team out of California he was good friends with. I havnt talked to him in a good minute.

GaleForce · 05-17-2013, 08:08 AM

Quote:

Originally Posted by LafitteZ

I tryed to do a run of those synchros about a year ago and no one showed any interest so i just dropped it. Im still running the setup with no problems so far. I really dont know anything about the parts. The mechanic who did the work knew something. Everybody shut me down when I was going to try to get a few made. These are one off parts not sold to the public. They were from some race team out of California he was good friends with. I havnt talked to him in a good minute.

Might be something worth looking into again now that there will be an influx of boosted 370's.

Mitco39 · 05-17-2013, 12:34 PM

Quote:

Originally Posted by LafitteZ

I tryed to do a run of those synchros about a year ago and no one showed any interest so i just dropped it. Im still running the setup with no problems so far. I really dont know anything about the parts. The mechanic who did the work knew something. Everybody shut me down when I was going to try to get a few made. These are one off parts not sold to the public. They were from some race team out of California he was good friends with. I havnt talked to him in a good minute.

Lol... In all seriousness I think there would be a good market for this, and some good money to be made going by your reviews and how yours is holding up. Anyway to get this going again?

whis9 · 05-17-2013, 12:45 PM

in for updates

05-15-2013, 11:31 PM	#24 (permalink)
Mitco39 A True Z Fanatic Join Date: Aug 2012 Location: Edmonton Alberta Canada Posts: 2,089 Drives: 40th 370z Rep Power: 132	What shop did all the work? What were the details behind the upgrade (beside ford syncros), __________________ 2007 Chevy Duramax - EFILive Tuned By Me 2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her My Build --> http://www.the370z.com/members-370z-...39s-build.html

05-16-2013, 02:48 PM	#25 (permalink)
takjak2 A True Z Fanatic Join Date: Feb 2011 Location: Sterling, VA Posts: 1,922 Drives: Legit Racecar 370Z Rep Power: 142	in for part numbers __________________ Mods \| Stuff \| Things \| Seat Time \| Nismo facebook.com/TeamSparrowSpeed

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04-23-2012, 01:15 PM	#16 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	yep it cost me much less then a new trans. Like my mechanic said the trans will be much tighter and much stronger because of all the little things that go into it he himself will be the one putting it together and not on some assembly line somewhere so he will pay much more attention to detail. As for the synchros this car is my daily driver so I drive minimum 50 miles a day so they will get tested and not to mention its boosted and I dont believe in driving a 600 horse power car like ms daisy so im probably the best candidate for this test. after feeling it and driving it I think I could drive it till the wheels fall off but wel see.

04-23-2012, 06:46 PM	#19 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	then take the 4.08 gears out of the rear and put the oem ones back in it. or do a 3.9 gear in the rear.

04-23-2012, 06:49 PM	#20 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	The gear sets are pretty expensive. One would wonder if you could use a taller gear setup from a different nissan but that takes a ton of research. The after market os giken gear sets are like 3000 just for gears which are absolutly a rip off but thats what it is. So only idea to keep cost down would be to mabe use a taller gearset from another nissan car but if I were you id just go down to i think its a 3.9 ring and pinion.

07-03-2012, 09:20 PM	#23 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	Sry Iv been busy and really havnt had much time to update this thread. I'm about 5000 miles in and the trans feels solid even wayyyyy better then it did out the factory. Now the only thing is it no longer feels or sounds like a factory tranny. When you go to shift it that mutha shifts. The Kevlar synchros are unbelievable. You can feel it engage and release. Now unfortunately it isn't smooth anymore but I drive it daily and it isn't bad at all. I'm running 560 WHP and when I step on it and shift it has no hesitation at all. It almost makes you shift to the next gear because of the spring mods he also does to it. The shifter actually feels like it pulls itself into gear. All in all so far I love it. It does have a little bit higher whine sound but nothing even close to being unbearable.

05-17-2013, 05:53 AM	#27 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	I tryed to do a run of those synchros about a year ago and no one showed any interest so i just dropped it. Im still running the setup with no problems so far. I really dont know anything about the parts. The mechanic who did the work knew something. Everybody shut me down when I was going to try to get a few made. These are one off parts not sold to the public. They were from some race team out of California he was good friends with. I havnt talked to him in a good minute.

05-17-2013, 12:45 PM	#30 (permalink)
whis9 Base Member Join Date: Dec 2012 Location: Dayton Posts: 54 Drives: 2003 under the knife Rep Power: 12	in for updates