Thinking of T56 instead of T5

efgiar · 12-12-2006, 08:47 PM

hey guys im currently building a motor for my car, au block with a ef/el xr head, im running an acl race kit thru the motor with 20thou oversized pistons, xr6t rods and the usual port/polish to the head. i am going to stay manual but was thinking of putting in a t56 instead of a t5. does anyone know if this is a bolt up affair or will a custom bellhousing need to be used. is there a t56 for the 6 cyl AU's? im using an au block so it would be a nice match and all the bolts will line up :P any more information would be great thanks

BLKPHN · 12-12-2006, 08:50 PM

got 8,000 spare then yeah go for it!!

the baII was the first to get the t56, but it will still bolt straigt to the au engine

efgiar · 12-12-2006, 08:54 PM

im sure u could pick up an au 6 speed for <1000. dont know where u have the other 7 grand from?

dansedgli · 12-12-2006, 09:05 PM

Quote:

Originally Posted by efgiar

im sure u could pick up an au 6 speed for <1000. dont know where u have the other 7 grand from?

I bet you $50 you cant.

You wont get a T56, trust me. ;)

Walkinshaw · 12-12-2006, 09:21 PM

T56's

Gen 3 commo's (shithouse ratios)
Mk2 ==> BOSS/TURBO's
Dodge Vipers.

$1000 for a T56, grab one for me please.

LUXO_8 · 12-12-2006, 09:24 PM

i'll go for one while you're at it....

josh, ba mk2 was the first Falcon to have the T56

efgiar · 12-12-2006, 09:43 PM

i thaught au v8s came with t56's

LUXO_8 · 12-12-2006, 09:45 PM

nope........tremec 5 speed on the T3's, otherwise it was a T5

Walkinshaw · 12-12-2006, 09:48 PM

Quote:

Originally Posted by efgiar

i thaught au v8s came with t56's

AU 302's ran with a T5Z (may have been 220's only)
AU 5.6's ran a TR3550

BA Mk1 Turbo ran the T5Z
BA Mk1 260/290 ran TR3560

BA Mk2 Turbo/260/290 ran T56.

correct?

efgiar · 12-12-2006, 09:50 PM

well that blew up didnt it lol. oh well answered my question, will stick with a t5

Damo · 12-12-2006, 11:26 PM

get a T5Z

efgiar · 12-12-2006, 11:29 PM

t5z only have 1 different gear ratio? and are stronger?

OED666 · 12-12-2006, 11:41 PM

i am sure all the gear ratios are different as they are a close ratio box. no big gap between 2nd and 3rd... i have a T5Z...

and yes they are stronger.

Damo · 12-12-2006, 11:51 PM

13.822 @ 99.67MPH - Willowbank 05/08/2006
this is why I say get a T5Z, when I blow my T5 this is what I will be going for, with a XR6T Flywheel and a big clutch.

EDXR6T · 13-12-2006, 12:45 AM

Quote:

Originally Posted by Damo

13.822 @ 99.67MPH - Willowbank 05/08/2006
this is why I say get a T5Z, when I blow my T5 this is what I will be going for, with a XR6T Flywheel and a big clutch.

Il be doing the same in the future. Need a new engine first.

Wouldent the shifter position on a T56 be A probleam anyways as they sit forward or somthing compared to a e-series T5.?

Rollin · 13-12-2006, 03:36 AM

Quote:

im sure u could pick up an au 6 speed for <1000. dont know where u have the other 7 grand from?

I paid 2k for a VZ HSV box second hand, bought an XR6T bellhousing and started measuring stuff up. You can't use a commodore one without swapping the input shafts, and I think the initial gear ratios would not be the same so you couldn't just bang one in, you would need a new cluster shaft and have to pull the entire box apart.

I priced the VZ HSV T56 box (M112) just for a laugh - holden want 9k for a brand newie...these boxes are farken expensive. They are very very strong though.

So I sold the VZ one to some guy (luckily managed to re-sell for 2k so I didn't loose any money) and still have the bellhousing if anyone wants it...

I then bought an XR6T box with flywheel and clutch, which cost me 3500 bucks (which is probably stuffed because I always get ripped off because I believe what people tell me) but I didn't get to fit it before stoving my car into a solid object.

I know the bellhousing fits (bottom bolts dont line up with two E-series brackets, but probably would line up with AU ones) I'm not sure which spigot bearing to use or even if they are different, I haven't compared the size of the input shafts yet.

From memory the T56 is 85cm from bellhousing to shifter pivot (on an XR6T box, holden ones are even further back) and the T5 is only 70cm, so the shifter will come up VERY close to the center console lid in 2nd 4th and 6th gears - the factory shifter is angled back though, so a custom/straight/short/angled forewards/whatever one may be needed, I dunno yet.

The T56 has a hydraulic clutch, so you would have to work something out there too, another thing I'm going to have to figure out when I get a car thats worth putting it into.

And it has no speedo sender output because BAs use a wheel speed sensor instead, so something will have to be worked out to make the speedo work...

LTDHO · 13-12-2006, 08:25 AM

Josh,

My T56 cost me just over $8k. However mine is to suit my application.
If you can get them for aroung $1k, let me know as I'm after another.

Speak to Pyro as I'm sure he has a T56 behind his turbo 6.

dansedgli · 13-12-2006, 09:38 AM

Spigot bearings are the same AFAIK.

OED666 · 13-12-2006, 10:24 AM

Quote:

Originally Posted by LTDHO

Speak to Pyro as I'm sure he has a T56 behind his turbo 6.

I read his testimonial on the Mal Wood site, and he said he has a T5Z...

I was thinking 309RWKW and a T5Z... WOW!!!

Quote from site...

Owner : Aaron "Pryoay"

Car : 1997 EL XR6 Turbo with 309 rwkw.

“It was clear that with over 300kw at the rear wheels the standard gearbox wasn’t going to be up to the task. Mal Wood supplied me with a T5 “Z” spec box and it has performed the task terrifically”.

I would recommend Mal Wood to any interstate person thinking about ordering a Tremec and having it fitted locally themselves.

Thanks, i wasnt too sure if he had changed his gearbox.

dansedgli · 13-12-2006, 10:25 AM

He has upgraded to a T56 since then.

LTDHO · 13-12-2006, 11:35 AM

In Street Fords Magazine, it says T56

Sledgehammer · 13-12-2006, 11:50 AM

Quote:

Originally Posted by LTDHO

Josh,

My T56 cost me just over $8k. However mine is to suit my application.
If you can get them for aroung $1k, let me know as I'm after another.

Speak to Pyro as I'm sure he has a T56 behind his turbo 6.

Yeah $8k sounds about right if you are buying locally, they are a USD $2k box in the states but you have to remember you need the other bits and pieces as well as freight.

For memory it also has 3 shifter locations that can be used so you can fit most applications.

OED666 · 13-12-2006, 01:29 PM

just one thing with a T5Z, it has a tall first gear, so unless you have 3.9's or 4.11's it will be a little slow off the line.

a standard T5 with 3.9's can mathematically take off faster than a T5Z with 4.11's...