TD6 Manual Gearbox Conversion... Is it possible???

**chaybra** · 29th July 2015, 01:38 PM

Not a manual conversion but ok price on a rebuilt trans let alone nearly double strength?

BMW 5L40E Performance Transmission

Anyone come across or heard of?

**Disco Muppet** · 14th October 2015, 06:05 PM

Attention, L322 Td6 owners...
I've been informed Rakeway do an adapter for the MT82 Getrag 6 speed to the BMW M57.
You're welcome

**Disco Muppet** · 15th October 2015, 02:31 PM

Soooo.....that adapter is allegedly $8850 Australian....

Currently looking into:

R380 - not an option. Eats them in 40k.
ZF GS6-53DZ - Should be able to handle the power. 6 speed manual. Good ratios, 1st is 5.08 compared to 5.443 in the MT82 and 4.556 in the Patrol.
Whatever the patrol gearbox is - can handle the power but doesn't have the low 1st gear that's good in the MT82 or ZF. Plus it's from a patrol

the ZF box supposedly is 'only' rated to 530Nm, however it's weaker predecessor with a Nm rating of only 390Nm can supposedly happily take 750Nm so it should be able to handle a bit more. Not sure if it's got any sort of electronic control.

It's a bit murky wading through performance BMW discussions, as it's all "well old mate blew his up doing 4k RPM launches with a 1100WHP vehicle blah blah blah"
And reading patrol forums is doing my head in as it's mainly "that's ****ing **** why would you do gay crap like that the rocker cover is like $4k* stupid ****ing euro ****"

*$100 on ebay. I checked

I'll post back here with more details when I have them...

**DoubleChevron** · 15th October 2015, 03:42 PM

Originally Posted by Disco Muppet

Soooo.....that adapter is allegedly $8850 Australian....

Currently looking into:

R380 - not an option. Eats them in 40k.
ZF GS6-53DZ - Should be able to handle the power. 6 speed manual. Good ratios, 1st is 5.08 compared to 5.443 in the MT82 and 4.556 in the Patrol.
Whatever the patrol gearbox is - can handle the power but doesn't have the low 1st gear that's good in the MT82 or ZF. Plus it's from a patrol

the ZF box supposedly is 'only' rated to 530Nm, however it's weaker predecessor with a Nm rating of only 390Nm can supposedly happily take 750Nm so it should be able to handle a bit more. Not sure if it's got any sort of electronic control.

It's a bit murky wading through performance BMW discussions, as it's all "well old mate blew his up doing 4k RPM launches with a 1100WHP vehicle blah blah blah"
And reading patrol forums is doing my head in as it's mainly "that's ****ing **** why would you do gay crap like that the rocker cover is like $4k* stupid ****ing euro ****"

*$100 on ebay. I checked

I'll post back here with more details when I have them...

Once you have this figured out ....... We'll all buy one of these suckers in a few years time with dead gearboxes ..... for next to nothing and stick proper manuals in them

Can you pay for the 'cad drawing of the conversion kit .... and get it made up in Australia. I'm sure someone like castlemaine rod shop could make up the adapter plate if there was a market.

Castlemaine Rod Shop

seeya,
Shane L.

**Disco Muppet** · 15th October 2015, 03:52 PM

I have no idea what's actually in the Rakeway kit, unless it's got a hell of a lot of stuff in it, I'm having difficulty seeing $9k worth of value in it.
I'd prefer the adapter to be at the end of the transfer case (Lt230 in my case) as it's easier to get to if necessary than a bellhousing adapter but I'll see what happens if Rakeway ever get back to me.

**DoubleChevron** · 15th October 2015, 03:55 PM

Originally Posted by Disco Muppet

I have no idea what's actually in the Rakeway kit, unless it's got a hell of a lot of stuff in it, I'm having difficulty seeing $9k worth of value in it.
I'd prefer the adapter to be at the end of the transfer case (Lt230 in my case) as it's easier to get to if necessary than a bellhousing adapter but I'll see what happens if Rakeway ever get back to me.

Maybe that adapter kit comes with the gearbox and everything needed ....

**Disco Muppet** · 15th October 2015, 04:27 PM

I'd almost want the engine too for that price

**Homestar** · 15th October 2015, 07:14 PM

I'd want it the gearbox, and it fitted for that price...

**Disco Muppet** · 15th October 2015, 07:34 PM

Keep in mind, that's just an allegedly...

Sent from my HTC One using AULRO mobile app

**Disco Muppet** · 16th October 2015, 04:57 PM

So...

The ZF GS6-53DZ supposedly is in the 2010 330D which puts out 520Nm of torque in factory form, so should be strong enough. The D indicates it's out of a diesel.
It's ratio's are as follows:

1st 5.08-1
2nd 2.80-1
3rd 1.78-1
4th 1.26-1
5th 1-1
6th 0.84-1

It supposedly bolts directly up the M57.
Now for my purposes, as I'm interested in using this motor in the D2, I've used D2 info for the following final drive calculations:

ZF box
LT230
265/75R16 tyres
stock 3.54 diff ratios

Gives me 100km/h at 2393, can supply things like 1st etc if you want but limited relevance to L322 as you guys run different tyre sizes, etc, but if you want I'll calculate for stock L322 and post them up

What RPM do you cruise at in the Td6?
If I were to use a 1.003 Tcase I'd get 2160 at 110, which would be great for cruising.
I understand the powerband of the M57 shows peak torque at around 17-1900rpm, but have never driven one!

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