New Transmission Alternative? 300zx Transmission - LS1TECH - Camaro and Firebird Forum Discussion

Notices
Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters
Sponsored by:
Sponsored by:

New Transmission Alternative? 300zx Transmission

Old 02-13-2015, 02:16 PM
  #1  
On The Tree
Thread Starter
iTrader: (10)
 
Join Date: Sep 2010
Location: Akron, OH
Posts: 143
Default New Transmission Alternative? 300zx Transmission

The 300zx z32 RS5R30A 5 speed transmission can be bought for WAY less than our t56's are going for now-a-days ($300 give or take), and are just as strong, if not stronger.

Who here would use this transmission behind their LS if the kit to make it possible was available at a competitive price?
littlereds10 is offline  
Old 02-13-2015, 05:31 PM
  #2  
TECH Senior Member
iTrader: (7)
 
Project GatTagO's Avatar
 
Join Date: Mar 2003
Location: The Druid City
Posts: 7,275
Default

Project GatTagO is offline  
Old 02-13-2015, 05:32 PM
  #3  
TECH Senior Member
iTrader: (7)
 
Project GatTagO's Avatar
 
Join Date: Mar 2003
Location: The Druid City
Posts: 7,275
Default

Ratios don't look that great:

1st: 3.214
2nd: 1.925
3rd: 1.302
4th: 1.000
5th: 0.752
Rev: 2.275
Project GatTagO is offline  
Old 02-13-2015, 06:24 PM
  #4  
jmd
TECH Addict
iTrader: (4)
 
Join Date: May 2002
Location: T56th Street, Aridzona
Posts: 2,407
Default

900 for his adapter plate and flywheel plus a clutch you may have to source separately for the disc and you're guaranteed to need a driveline for your S10 and you get one less gear. Plus, ratios 1-4 similar to a Fox body T-5 with an OD that is irrelevant to an engine thhat can pull more OD.
I would consider it but I wouldn't go out of my way to source one. The real cost (not your apples to oranges bit) isn't far apart and there is no tangible gain.
jmd is offline  
Old 02-14-2015, 01:39 PM
  #5  
On The Tree
Thread Starter
iTrader: (10)
 
Join Date: Sep 2010
Location: Akron, OH
Posts: 143
Default

Would it be more ideal if the adapter kit was closer to 700 or 800? I May know someone who can manufacture a kit for a reasonable price.
littlereds10 is offline  
Old 02-14-2015, 01:43 PM
  #6  
On The Tree
Thread Starter
iTrader: (10)
 
Join Date: Sep 2010
Location: Akron, OH
Posts: 143
Default

Btw the stock 300zx clutch, starter, and slave/fork is used. And it's not going in an s10, but it could be. I don't have a formal quote yet but 800 for the kit and 300 for a used trans sure beats the price t56s are going for
littlereds10 is offline  
Old 02-14-2015, 02:22 PM
  #7  
TECH Resident
 
Join Date: Oct 2006
Posts: 852
Default

Seems like a stout piece, but I'm really not a fan of the t-5 style ratios. The deep first gear is useless in my opinion, with LS engines that produce good torque.
79_T/A is offline  
Old 02-14-2015, 03:38 PM
  #8  
Launching!
 
Join Date: Sep 2014
Location: Merica
Posts: 217
Default

We've been kicking around the idea of reproducing R154 gears for the Supra so people can have an affordable alternative to some of the more expensive units like the T56 in the import conversions.
AMP-D is offline  
Old 03-30-2015, 11:23 AM
  #9  
On The Tree
Thread Starter
iTrader: (10)
 
Join Date: Sep 2010
Location: Akron, OH
Posts: 143
Default

Who would buy the kit (flywheel, bellhousing adapter, and pilot bushing adapter) for $750?
littlereds10 is offline  
Old 03-30-2015, 02:14 PM
  #10  
TECH Fanatic
iTrader: (2)
 
blackandgold's Avatar
 
Join Date: Mar 2009
Location: Ann Arbor
Posts: 1,326
Default

I wouldn't. I don't like the ratios, 1st gear looks like it would be useless, especially with 4.11s in the back...And 2800RPMs to do 70mph on the highway...

Last edited by blackandgold; 03-30-2015 at 08:58 PM.
blackandgold is offline  
Old 03-30-2015, 08:19 PM
  #11  
TECH Resident
 
Join Date: Oct 2006
Posts: 852
Default

Yeah those ratios are not good for an LS1 powered car at all.
79_T/A is offline  
Old 04-01-2015, 03:12 PM
  #12  
TECH Addict
iTrader: (1)
 
SSCamaro99_3's Avatar
 
Join Date: Jan 2003
Location: Ballwin, MO
Posts: 2,558
Default

Are T-56's really that expensive? Seems like after all the adapter stuff you are most of the way to the real thing.
SSCamaro99_3 is offline  
Old 04-01-2015, 04:15 PM
  #13  
TECH Fanatic
iTrader: (2)
 
blackandgold's Avatar
 
Join Date: Mar 2009
Location: Ann Arbor
Posts: 1,326
Default

Originally Posted by SSCamaro99_3 View Post
Are T-56's really that expensive? Seems like after all the adapter stuff you are most of the way to the real thing.
Also a good point.
-Used z32 5-speeds are 700-1k for a used unit on ebay + 750 for the kit
-A used t-56 goes for around 1400-1600 in the classifieds here

So either way you spend around 1500 for a used trans that may or may not need a rebuild...If everything for a z32 5-speed could be had for under 1k, I could see it as a viable cheap option. Who knows people may buy it though. I think within the next year or so the aftermarket will pick up slack building parts for the t-56 and this may be a non-issue.

Now with all that negativity out of the way, I'd love to see someone slap one of these in purely for the cool build thread!
blackandgold is offline  
Old 12-18-2015, 07:40 PM
  #14  
Teching In
 
Join Date: Jun 2011
Posts: 9
Default

Just thought I would bump this thread to say that we now have a much cheaper option if one wanted to run a Z32 trans behind their LS. This kit is $600

http://www.crossmembers.com/shop/con...kit-p-453.html

I/m going to get a complete Z32 trans setup for $200 at the local yard this weekend.

Adapter $600

Decent TT clutch $200

looks like I can get this setup together for $1k

Can I make up for the less than ideal ratios by replacing the diff with a certain ratio?

It's going into a BMW 3-series with 17' wheels

Thanks
sebasc300 is offline  
Old 12-18-2015, 07:51 PM
  #15  
On The Tree
Thread Starter
iTrader: (10)
 
Join Date: Sep 2010
Location: Akron, OH
Posts: 143
Default

Originally Posted by sebasc300 View Post
Just thought I would bump this thread to say that we now have a much cheaper option if one wanted to run a Z32 trans behind their LS. This kit is $600

http://www.crossmembers.com/shop/con...kit-p-453.html

I/m going to get a complete Z32 trans setup for $200 at the local yard this weekend.

Adapter $600

Decent TT clutch $200

looks like I can get this setup together for $1k

Can I make up for the less than ideal ratios by replacing the diff with a certain ratio?

It's going into a BMW 3-series with 17' wheels

Thanks
Thanks for the bump! I forgot to post up that we released this adapter kit. I'm in the process of developing a 350z transmission adapter now
littlereds10 is offline  
Old 12-19-2015, 03:39 PM
  #16  
9 Second Club
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 12,114
Default

The Nissan box as strong as a T56 ? I really doubt that.

More options are always good for swaps though, especially as the T56 is quite big and heavy for those that dont need or want 6 gears or such a strong/heavy box.

But lets face it...the T56 is good value, they just bolt on, no aftermarket parts are needed and everything is available off the shelf with no cocking about.

They just make sense.

For lower powered cars, a T5 isnt hard to fit
stevieturbo is offline  
Old 12-31-2015, 04:12 PM
  #17  
Teching In
 
Join Date: Jun 2011
Posts: 9
Default

There are tons of reports of the Z32 transmission withstanding 800+ whp in TT Z's, reliably.

I know they don't make near the amount of low end torque that an LS will put out so it remains to be see what they can handle when paired with an LS.

The gearing isn't a huge deal breaker to me and many swappers because we have to upgrade our diff anyway.

I plan on running mine behind a stock LY6 before I slap on an LSA supercharger. It's going into a 3200lb BMW that will be daily driven on the street so I think this transmission will hold up to my power goal without breaking the bank.

I will be purchasing the transmission tomorrow at the local U-Pull-IT yard for a whopping $90... Gotta love those 40% off days.
sebasc300 is offline  
Old 10-25-2017, 04:17 AM
  #18  
Registered User
 
Join Date: Oct 2017
Posts: 4
Default

Has anyone ran the z32 transmission? Im running one but after my motor warms up the starter has issues cranking the motor does have higher compression. Has anyone found a high torque starter for this setup?
Frod629 is offline  
Old 10-25-2017, 05:10 AM
  #19  
9 Second Club
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 12,114
Default

Might help if you stated what starter you were using etc.
stevieturbo is offline  
Old 10-25-2017, 01:48 PM
  #20  
Registered User
 
Join Date: Oct 2017
Posts: 4
Default

Im running a z32 starter
Frod629 is offline  

Thread Tools
Search this Thread
Quick Reply: New Transmission Alternative? 300zx Transmission


About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: