rxmiles

iTrader: (11)

Well.....I have been looking and looking for a deal on a t56 for a while on Craigslist with no luck. I couldn't even find a t56 at all most of the time, so it got me thinking and I know the T-5's are just too weak.

I was looking through criagslist when I randomly came across an add for a 370z 6-speed for $150 well I did some searching and there's a company that makes adapter plates for the 350z/370z transmissions for around $500

That's $150 for the transmission and $500 for the adapter kit= $650 way less than half of most T56's out there.

I did some research and as always there's mixed reviews about it's strength. I do know that a lot of people push these 500+ HP but these transmissions are known fr Syncro problems.

Any ways this week I'm picking up two Nissan transmissions to play with and do some measuring.

As always everyone loves pictures so here's one of the kit


A link to the website
LSX LS1 LS2 LS3 LS6 LS7 LS9 L98 Engine to 350Z 370Z VQ Transmission Compound Adapter Plate

And a picture of my car and engine. Engine a a LC9 all aluminum 5.3l

Ruler_Mark

iTrader: (16)

cd009 has been hailed as a really good trans. The cd008(early 350z) have very weak syncos and break very fast.

I know brett from the car scene(same state) hes a good guy. Makes good stuff to pay for his personal amateur drifting fun.

rxmiles

iTrader: (11)

I found a 37Oz trans for 15O i might pick up both

LargeOrangeFont

iTrader: (7)

What are the ratios of the 350z and 370z trans?

The trans ratios may force you into an 8.8 swap earlier that you anticipate.

Akagis_white_comet

iTrader: (4)

My friend has a 350z and I was curious about its ratios in order to transplant it into my car. Here they are:
1st -3.794, 2nd -2.324, 3rd -1.624, 4th-1.271, 5th -1.000, 6th -0.794

It's very similar to the RX-8, which is 3.815, 2.260, 1.640, 1.177, 1.00, and 0.843 (09+ models)
99+ Miata and 04-08 RX-8 is 3.76, 2.269, 1.645, 1.187, 1.00 and 0.843
Seems like a good option for a 13B, as the VQ35 is rather peaky too. But the close ratios wouldn't be very suitable for more torquey engines like a 20B or LSx

rxmiles

iTrader: (11)

I haven't looked in to the ratios to be honest and the Ford 8.8 was already in the plans. If I get the fund sooner I might just pickup two transmissions that are available.

I want to play a little with it, see how it seems to fit in the transmission tunnel and what not. For how cheap I can get these it's worth a shot and being that 350Z's and 370Z's are pretty popular vehicles in motorsports and drifting there should be gear kits to play with ration. I don't want to get in to that since it might defeat the purpose of the low cost alternative.

Now the engine I have is a LS-Series Gen IV Small-Block V-8 which is all aluminum block engine code LC9 and it appears they sell adapter plates for most variables of the LSx family, my concern is the spacing between the block and the trans. It appears that it might move the engine forward a few inches.

I'm not quite sure for now but I will update thought once I get the transmissions.

Pic of my Rx7 just for fun




Edit: I found a thread on Lsxtech regarding a similar discussion.

http://ls1tech.com/forums/conversion...009-trans.html

This is from prosteet online regarding a LSx swap in a 240sx: http://my.prostreetonline.com/2013/0...-into-a-240sx/

"CD009 – Another newer transmission found in the Nissan 350 and 370Z’s, many people have driven this six speed transmission well into the quadruple digit horsepower ranges, which makes it an excellent canidate for a swap. You will require a transmission adapter plate as well as a custom shifter extension.

Overall the CD009 is one of the cheaper high horsepower alternatives out there, at around 1700 dollars brand new and the cost of the adapter plate coming in well under the price of a T56."

LargeOrangeFont

iTrader: (7)

I posted this on Norotors as well.. I think you are going to end up throwing good money after bad. You don't need a close ratio trans with a V8 in these cars.

I saw these on eBay a few months ago. The ratios are not really conducive for use with a high torque V8. The early 350z boxes seem to be weak anyway, so you want the 009 instead of the early 008 it sounds like.

370z gear ratios.
1st 3.79
2nd 2.32
3rd 1.62
4th 1.27
5th 1.00
6th .79

The 6th gear of this trans is shorter than the Fbody 5th gear. The final drive in a 370z is 3.69. That will be horrible with 4.10s or 3.90s and the shorter tires we run on RX7s.

So you will save money on a trans but be forced to do an 8.8 conversion. You will need to run 3.08-3.31 gears to make that trans liveable without shifting constantly and to get some top speed out of the car. First will always be a useless gear even with the 8.8 and you will not get any fuel economy benefits from a tall overdrive gear.

To put it in perspective: With this trans, a 4.10 final drive, 25 inch diameter tires and a 7000 RPM redline you will run out of gear at 160 MPH.

Not interested, but a neat product!

Ruler_Mark

iTrader: (16)

a 3.08 would make the gearset work. Its a very nice and tight set would make a killer roadcourse car.

LargeOrangeFont

iTrader: (7)

I think the gearing is too tight for a V8 Rx7... First is useless and you'd be shifting through 3-5 often. The 6th gear is a good roadcourse gear though.

But even that .79 6th is equivalent to 5 gear in even the close ratio MN12 T56.

mattster03

iTrader: (9)

Nice find. But, what about the cost of the LS-style bellhousing? Still cheaper than an LS-T56, but $650 might be a little deceiving to the casual observer without the cost of the bellhousing included.

LargeOrangeFont

iTrader: (7)

So you are looking at about $900 after you procure a bellhousing

mattster03

iTrader: (9)

Wonder what the location of the shifter would be, or, if it also would require a "custom shifter extension"...

Ruler_Mark

iTrader: (16)

its father back than a t56, might sit better in the hole than the t56. t56 sit far forward and require notching. i know on other swaps(240 etc) they move the shifter foward because its too far back.

Exidous

I think a custom shifter mount is available and that a 2.73 would be just about ideal for the FD with an LSx. I may give this a look if I get sick of the T-56 notchiness. Just wish I could keep my LT1-S Monster clutch.

6200 RPM 25" tire
1st 44
2nd 72
3rd 104
4th 132
5th 168
6th 212....lol

2000 RPM
6th 68MPH

Good cruiser and high HP texas mile trans.....hell even a 1/4 mile trans. Apparently newer than 2006 they can take 1000lbtq+ no problem.

LargeOrangeFont

iTrader: (7)

In an FC the T56 shifter position is perfect with the Ronin engine mounts.

It just seems like this will cost a bunch of extra money to get it to work, negating any savings. The 2.73 seems to get it in the ballpark at least. The jump from 2nd to 3rd looks a little long in the 350Z trans. In the Fbody T56, 5 gear is a little too tall, but 1-4 are spaced pretty well.

Here is the same info for top speeds in the wide ratio F body T56. I used the same constants, but used a 3.73 rear gear. This is my exact setup, but I use a 7000 RPM redline, typically shifting around 6600.

25 inch tire, 6200 RPM redline, 3.73 gears

1st 46 mph
2nd 69 mph
3rd 95 mph
4th 124 mph
5th 167 mph
6th 247 mph

2000 RPM in 6th - 80 MPH.

rxmiles

iTrader: (11)

That's another reason I want a alternative to the T56, I just simply don't like how it shifts. Any how I just bought a truck so we'll see if I can pick up the transmissions.

DeaconBlue

iTrader: (31)

Another thing to consider it the weight of the two transmissions. The T56 is fairly heavy at 115-125 lbs depending on model. Although the 009 may not be strong enough for drag race duty or even street duty behind say a +500 HP LS engine, it maybe an suitable behind a mild n/a 5.3L engine. The key is the total cost, since you would have to swap in the Ford 8.8 with a much lower numerical gear ratio to use the 009, while with the 2.20 1st gear T56, you can still run the stock TII differential and the higher numerical 4.10 gear as noted above.

Of course if you want a really unique combo, just swap in the complete '07-08 350Z or later 370Z engine/trany combo into your RX7

digitalsolo

iTrader: (2)

What type of clutch is required to make that work?

rxmiles

iTrader: (11)

I believe the t56 clutch is used.

LargeOrangeFont

iTrader: (7)

It looks like the just give you a clutch disk to use, right? Or is that clutch disk just an LS1 clutch disk?

I see 2 kits on their site, with and without a clutch disk. The one with the disk is $200 more.

theo481

iTrader: (10)

Anyone have more info on this??

LargeOrangeFont

iTrader: (7)

What more do you need? Give Collins a call.

theo481

iTrader: (10)

fitment into a FD?

edmorl

thanks for the info, it's almost impossible to locate a t56 up north for under 1800$

Exidous

If it didn't need 2.73 gears and a single disk clutch to work well I'd sell my built t-56 in a heartbeat. I've driven that trans before and it's pretty dang smooth.