Built Manual Transmission

BGTV8 · 10-19-2020, 02:01 AM

Quote:

Originally Posted by oldskoolchuk

Yes, I brought this subject up in Boosted VQs. It's hard for me.to believe that there isn't a kit available for these transmissions considering the way the synchros fail with boosted applications. I've seen quite a few posts about trans problems over the last number of months that I've been a part of the community. I figured that if I encouraged discussion there too, perhaps it would get some kind of response from someone who had either built a stronger solution, or could point me in the right direction for upgrade kits, or perhaps at least someone I could shop mine to for some modifications since mine is still shifting well and not grinding yet. I've owned 3 of these now, one of which had a new trans put in under warranty. Both the others shifted so much faster than mine is now. Neither of those were boosted though. I didn't warranty this one because an adjuster.would tell me to **** right off as soon as they looked under the car or under the hood. I still don't like the idea of buying a whole new trans to fix a few parts that are wearing... but it seems like it's our only recourse.

The thing is there's an opportunity for someone to make a lot of money making a durable trans or by putting together an upgrade kit for this car... people love boosting them, tracking them, and drifting them. If I was a trained transmission mechanic I'd jump at a chance to start up a company. I really don't think success is "pie in the sky" on this. There is a market for this... it's just waiting for someone to jump on it.

There are solutions, it is just that they are expensive.

The cost to open the trans to replace parts when aligned o the cost of a replacement OEM unit does not add up.

YGWYPF

2011 Nismo#91 · 10-19-2020, 07:59 AM

When I toasted my 5th gear synchro I looked into some of these upgrades to the transmission. Essentially it was working out to 2-2.5 times the cost of a new transmission. For a boosted Z which frequents a drag strip this might be viable, but how many of those are out there? Based on the people here there are very few mentions of broken transmission even for the boosted group.

Spooler · 10-19-2020, 08:32 AM

Quote:

Originally Posted by 2011 Nismo#91

When I toasted my 5th gear synchro I looked into some of these upgrades to the transmission. Essentially it was working out to 2-2.5 times the cost of a new transmission. For a boosted Z which frequents a drag strip this might be viable, but how many of those are out there? Based on the people here there are very few mentions of broken transmission even for the boosted group.

LOL, price a sequential. 25k plus install and custom driveshaft.

BGTV8 · 10-19-2020, 03:29 PM

Quote:

Originally Posted by Spooler

LOL, price a sequential. 25k plus install and custom driveshaft.

Not quite so squeezy. Options

https://www.hgtprecision.com/contact/

US dealers here: https://www.hgtprecision.com/dealers/usa/

https://www.ttindustries.com/car-gearboxes/ TTi GTO to 750ft/lbs or TTi XHD GTO to 1000ft/lbs (but only 5 speed)

The price is around NZ$14K which will be about 2/3rd in USD

My 3.5" CrMo tail-shaft cost A$1800 with hi-capacity yokes

They can also be found on the motorsport sales websites:

https://www.my105.com/ListingDetails/id/20474/latest/1

Rusty · 10-19-2020, 05:41 PM

Quote:

Originally Posted by BGTV8

Not quite so squeezy. Options

https://www.hgtprecision.com/contact/

US dealers here: https://www.hgtprecision.com/dealers/usa/

https://www.ttindustries.com/car-gearboxes/ TTi GTO to 750ft/lbs or TTi XHD GTO to 1000ft/lbs (but only 5 speed)

The price is around NZ$14K which will be about 2/3rd in USD

My 3.5" CrMo tail-shaft cost A$1800 with hi-capacity yokes

They can also be found on the motorsport sales websites:

https://www.my105.com/ListingDetails/id/20474/latest/1

oldskoolchuk · 10-20-2020, 12:04 AM

I've owned 3 370Z's now, and 2 had synchro issues, the other 2 I had were NA. it seems a boosted Z is going to tear up synchros, it's just a matter of time... and faster than NA. I appreciate that someone posted links on options, because the way I see it, I'm never selling this car... so I should look into a stronger trans before I've replaced multiple transmissions and regret not doing it to begin with.

JARblue · 10-20-2020, 08:00 AM

Maybe this would help? Not MT unfortunately, though...

The 2020 370z needs a DCT

AlWakRa · 11-02-2020, 06:12 PM

I read the whole thread without any idea on where or how to order the syncros

I know it is old post but still active, in that case, anybody knows what is the part numbers to buy new syncros for syncrev transmissions?

JARblue · 11-03-2020, 09:09 AM

https://conceptzperformance.com/items.php?p=234

Part numbers for the 370Z synchros
Reverse gear synchro: 32631-CD000
1st gear synchro: 32620-CD401
2nd gear synchro: 32620-CD008
3rd gear synchro: 32620-CD405
4th gear synchro: 32620-CD016
5th-6th gear synchro: 32604-5X00A

Elmo370z · 11-03-2020, 10:57 AM

Quote:

Originally Posted by AlWakRa

I read the whole thread without any idea on where or how to order the syncros

I know it is old post but still active, in that case, anybody knows what is the part numbers to buy new syncros for syncrev transmissions?

Shep will build you a transmission

Elmo370z · 11-03-2020, 11:23 AM

I lied haha

AlWakRa · 11-03-2020, 04:17 PM

Quote:

Originally Posted by JARblue

https://conceptzperformance.com/items.php?p=234

Part numbers for the 370Z synchros
Reverse gear synchro: 32631-CD000
1st gear synchro: 32620-CD401
2nd gear synchro: 32620-CD008
3rd gear synchro: 32620-CD405
4th gear synchro: 32620-CD016
5th-6th gear synchro: 32604-5X00A

Finally, thanks a lot Jar.

Quote:

Originally Posted by Elmo370z

Shep will build you a transmission

Looks like he doesn't, and if he does, the shipping cost will be fantastic

Spooler · 11-03-2020, 11:41 PM

LOL, 3rd gear is the hardest pulling gear for most cars. This guy has broken several.

redondoaveb · 11-04-2020, 12:29 AM

Quote:

Originally Posted by Spooler

LOL, 3rd gear is the hardest pulling gear for most cars. This guy has broken several.

Most of his races are roll races and he flat foot shifts 3rd and 4th.

Spooler · 11-04-2020, 10:47 AM

Quote:

Originally Posted by redondoaveb

Most of his races are roll races and he flat foot shifts 3rd and 4th.

That would be why he keeps ripping apart 3rd if he flat foot shifts.

10-19-2020, 07:59 AM	#122 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,413 Drives: slowly Rep Power: 40570	When I toasted my 5th gear synchro I looked into some of these upgrades to the transmission. Essentially it was working out to 2-2.5 times the cost of a new transmission. For a boosted Z which frequents a drag strip this might be viable, but how many of those are out there? Based on the people here there are very few mentions of broken transmission even for the boosted group. Rusty and Spooler like this.

10-20-2020, 08:00 AM	#127 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	Maybe this would help? Not MT unfortunately, though... The 2020 370z needs a DCT cv129 likes this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

11-02-2020, 06:12 PM	#128 (permalink)
AlWakRa Track Member Join Date: Oct 2010 Location: Qatar Posts: 600 Drives: 10 370Z PW 6MT Rep Power: 13450	I read the whole thread without any idea on where or how to order the syncros I know it is old post but still active, in that case, anybody knows what is the part numbers to buy new syncros for syncrev transmissions? __________________ 2010 370Z Touring Sport Pearl White 6MT Powered by: Fast Intentions - Motordyne - Stillen - OS Giken - CJ Motorsports - Mishimoto - MCA Suspension - SPL - SuperPRO - RJM - Z1 Motorsport - Zspeed - Volk My Humble Journals

11-03-2020, 09:09 AM	#129 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	https://conceptzperformance.com/items.php?p=234 Part numbers for the 370Z synchros Reverse gear synchro: 32631-CD000 1st gear synchro: 32620-CD401 2nd gear synchro: 32620-CD008 3rd gear synchro: 32620-CD405 4th gear synchro: 32620-CD016 5th-6th gear synchro: 32604-5X00A AlWakRa, Rusty, Jayhovah and 4 others like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \| Last edited by JARblue; 11-03-2020 at 09:13 AM.

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10-20-2020, 12:04 AM	#126 (permalink)
oldskoolchuk Base Member Join Date: Jun 2015 Location: Minneapolis, MN Posts: 23 Drives: Boosted '13 Nismo Rep Power: 11	I've owned 3 370Z's now, and 2 had synchro issues, the other 2 I had were NA. it seems a boosted Z is going to tear up synchros, it's just a matter of time... and faster than NA. I appreciate that someone posted links on options, because the way I see it, I'm never selling this car... so I should look into a stronger trans before I've replaced multiple transmissions and regret not doing it to begin with.

11-03-2020, 11:41 PM	#133 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,133 Drives: 2013 Nismo 370z Rep Power: 2684394	LOL, 3rd gear is the hardest pulling gear for most cars. This guy has broken several.