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

[Homestar]

Long post here - please forgive that, but there is a lot of info in my head I need to get out.:D

So, been doing a lot of thinking while the transmission is being rebuilt, installed, removed, sent back for work, reinstalled... I don't really want to talk about all that, it is too depressing...

But, after it is all sorted, I figure that sooner or later, I will be doing this exersize again at some stage. I have no condfidence that the GM box, no matter how well it is rebuilt, or with what parts, will last as long as I currently plan to keep the vehicle.

With that in mind, I am pondering my options for when that time comes. I recon I have a few options, but some appeal more than others.

1 - Get the GM box built again. I think it is a no brainer that I don't want to go down this path again. Also, these boxes have a finite amount of times they can be worked on, as the pump housing is cast into the main housing, and requires machining once it is stuffed, you can only rebuild then 2 or 3 times before they are completly U/S. Remanufacturers of these boxes are already running out of suitable core to do this.

2 - Work out if the ZF box could be fitted - there is a bit of chatter around on this, and while I have no definate answer, it seems like the hardest bit could be intergrating the electronics, but still may be an option.

3 - Convert it to a manal transmission... Now, I know some will think this is impossible, or at least cost prohibitive, but I've done a bit of research, and I think it may be possible, and at a similar price to getting an auto done - assuming I do all the work myself...:p

I have gone through what I think I would need to do this, and I have a few blanks which I am hoping someone may be able to help with, or at least add to the discussion - remember, this is just a feasibility study at the moment. Starting from the engine, I have had these thoughts...

For a start, the BMW X5 E53 (2002) 3.0 TD6 model was available as a 5 speed manual out of the factory. I can't find a lot of info on these boxes, but it does beg the question - would it bolt up... Is the block the same on the manual and auto, and is this the same as the RR variant?

If going down that road is a bust, then converting to an entirely different box may be an option. 1st and formost in my mind would be - which box? This is a question I have yet to answer, but I have thought through a few other things.

Bellhousing - can get custom units made easily enough if the correct data can be obtained for the engine and gearbox. Cost would be in the order of $1,500 to $2,000..:eek:. Another option would be to convert a bellhousing that fits the engine already, but this gets us back to the BMW box, and if one of those isn't available, then I doubt a bellhousing would be...

Spigot bearing - I don't know if the crank will have a recess for a spigot bearing, but as there was a manual gearbox option - maybe. Even if it doesn't, I can soon whip the crank out of the engine and get this machined.

Flywheel/ring gear - fairly straight forward if the bellhousing issue is overcome. You could get a custom one made, or modify an existing unit.

Starter motor - see bellhousing - that's all part af getting around that problem...:p

Clutch pedal - again, I don't think this would be a huge issue. There are plenty of aftermarket pedal boxes available, but I haven't checked out how much room there is to put this where it needs to go.

Transfer case - gearbox would need a custom output shaft and adaptor made to bolt up to the transfer case - while not a DIY job, there are engineering mobs that will do this. I wouldn't be the first person to modify a box to bolt up to a 4WD transfer case.

After all that, there would be the jobs of making an appropriate hole in the floor, and cosmetics of having a gear stick poking up through the console, but that is minor stuff compared to everything else.

The biggest hurdle, as with the ZF conversion, could be the electronics... Not sure how the car would react to not having an automatic transmission anymore... When the trannie crapped itself, the engine continued to run fine, and rev no problems - seeming oblivious to the fact the trannie was in a thousand bits, so not sure if just leaving the loom off, or pulling out the trannie ECU would work or not....:confused:

Anyway, that's about enough for one post. Feel free to add ideas, suggestions or any other comments - both good and bad - I'm a big boy, and I can take it.:D

This is not the first time I have gone and done something like this, so apart from the custom bits I might need making or modifying - if there is something that will work, and will fit between where the engine and transfer case is, I'll probably have a crack at it one day - this is a longer term plan, and someone else may have done this, or are planning this - who knows?:)

Cheers - Gav.

[frantic]

Maybe for the cost and time and custom stuff add ons you might be better off with either a tdv6 3.0/2.7(chipped for more fun) or for the dollars your going to spend even a tdv8:D from one of the pommy modifiers/suppliers which they get to hook up in D2's or defenders not sure if their manuals though I think simetek or bells maybe and a few others seen mentioned here on this forum.They used a bog standard disco auto from a D1 V8 for the tdv6 2.7!
Range Rover P38 to TDV6 Conversion Project (http://www.bodylogicuk.com/90265/info.php?p=10)
Bell Auto Services Project TDV8 Defender running for the first time - YouTube
Simtek UK 2.7 TD V6 Discovery I Diesel Conversion Project (http://www.bodylogicuk.com/90265/info.php?p=11)

[Homestar]

I can see your point, but when you start going down the whole engine swap thing, you add in all the other problems, and it's much more difficult & expensive to buy and get engineered. The TD6 is a great engine, and I'm not after any more power, just a gearbox that will go the distance.

If I could pick the right box up for about $2K, add a bellhousing, flywheel and gearbox mods, I'm hoping it could be done for under $8K - not much more than getting the ****box GM auto rebuilt... Could be way off with that, but it would be a heap cheaper than the whole engine and gearbox I think.

You have bought up an interesting point up though - would an older style auto work...

That's a nice conversion in the P38 mind you...

[101RRS]

If you say that BMW made a manual gearbox (it will most likely be a Getrag 29? that was in the 5,6 series) that was on the back of the TD6 - then I would be looking at that option. The odds are the transfer case will be similar too (obviously without low range), if not the main issue will be matching the RR transfer case to the gearbox.

Most doable (I matched a Holden V8 5 speed gearbox (similar to the mid 90s BMW 5 series box) to a Jag V12 - mateing the gearbox was the easy bit - the hard bit was mounts, gear lever position, drive shafts, clutch pedal, electrics etc

Not hard, just requires detailed planning and research.

Garry

[Homestar]

If you say that BMW made a manual gearbox (it will most likely be a Getrag 29? that was in the 5,6 series) that was on the back of the TD6 - then I would be looking at that option. The odds are the transfer case will be similar too (obviously without low range), if not the main issue will be matching the RR transfer case to the gearbox.

Most doable (I matched a Holden V8 5 speed gearbox (similar to the mid 90s BMW 5 series box) to a Jag V12 - mateing the gearbox was the easy bit - the hard bit was mounts, gear lever position, drive shafts, clutch pedal, electrics etc

Not hard, just requires detailed planning and research.

Garry

Thanks Garry - the factory box - if it exists and is available is my first option, but I'm having trouble finding out any details on this, and on any differences in the blocks between the X5 and the RR. I am going to sign up to a few BMW forums and see what I can find out...

By the way - how did you mate the Holden box to the Jag V12? Did you use an adaptor plate or modify/make/have made a new bellhousing?

Cheers - Gav

[101RRS]

I used a 10mm steel adaptor plate. I could have used aluminium but it was a backyard job so not able to work out stresses etc so went the thick plate. Heavy but works.

Garry

[Foxspell]

Hi Gav,
I'm sure someone told me that the 3 litre petrol block is the same as the 3 litre diesel, so you should find availability of boxes much larger than you thought, as in petrol version this motor has been around for years.
Regards,
Lee

[salty1960]

I'd look at making the Toyota Supra (getrag) version 6 speed fit in. Even if it needed some custom housing and shaft reworking.

See
Turbosupras Technical - Getrag V160 Transmission (http://www.turbosupras.com/pages/pages/technical/jza80/V160.htm)

Good luck - I will be watching

[Homestar]

I'd look at making the Toyota Supra (getrag) version 6 speed fit in. Even if it needed some custom housing and shaft reworking.

See
Turbosupras Technical - Getrag V160 Transmission (http://www.turbosupras.com/pages/pages/technical/jza80/V160.htm)

Good luck - I will be watching

Thanks for that - they seem to be known as a fairly unbreakable gearbox, but I couldn't find any specs relating to how many HP they are good for, and more importantly how much torque they can handle being that it would end up behind a diesel - which could end up being chipped if things all work out... The other thing that looks a bit complicated is that the bellhousing supports the input shaft bearing, and one end of the shifter mechinism or something - that would mean I would have to modify the existing housing, which may work, but would need to be looked at. This would lend itself more to an adaptor style conversion, rather than a completly different bellhousing, but that could work...

Keep the ideas coming. :)

Cheers - Gav

[33chinacars]

Some interesting ideas here Gavin. But what happened to your super duper rebuild 5L40E. From what you said they were the experts & I was going to use them when & if I ever needed to

Gary

[Homestar]

Some interesting ideas here Gavin. But what happened to your super duper rebuild 5L40E. From what you said they were the experts & I was going to use them when & if I ever needed to

Gary

Hi Gary, interseting story that... The trannie has now covered many more miles than the car. When the trannie came back, it was installed, and tested, only to find that it didn't go very far or very fast. It would go, but needed a fair few revs to get it going. The guy that rebuilt it asked for some pressures to be measured, to see if he could work out what is wrong. At idle, basically no pressure, reved to 2,500 rpm, and then there was some...

Trannie guy was very perplexed, but true to his word on backing his work, he had the box pulled out and shipped back to Sydney at his expense.

Got a phone call yesterday from him saying he had found the problem. When he had the pump housing machined, which is part of the main trannie housing, the machineist pulls a plug out in the pump gallery that is basically there to fill a hole after casting - it's made of steel, and they don't want it in the way when they do the machining. This plug blocks the galleries between the inlet and outlet of the pump... see where this is going?:p

Machinist had left the plug out, so fluid was just circulating around the pump, until there was enough revs to get enough fluid to not only go back to the inlet, but enough to make the car roll forward...

He has apologised profusley for this stuff up, and the box is now heading back this way as we speak. Should have the car back next week I would imagine...

Despite this botch up, I would still recommend this guy, his customer service and commitment to fixing the problem have been outstanding, and not once was he unavailable or tried to shirk his responsibilities. He even had my number in his phone, so he always answered 'Hi Gav'. He left his phone at home one day, and when I rang it, his wife answered it. We had a good chat about what was going on, and she said that he was even loosing sleep over this problem - you don't come across this kind of person very often, he certainly seems to be the real deal.

Will keep you posted on the eventual outcome, but with all these problems, I think I will keep exploring the manual gearbox option in case I ever have to do this again. Hopefully won't be for a few years...:D

Cheers mate - Gav

[33chinacars]

Thanks Gavin.

Good to see you still recomend them. Great service by the sound of it. Hope all your problems are fixed soon. & touch wood I dont have to use their services.

Would be interested in what parts went into you auto & how much more torque it can now handle.

Some of the problems with going to a manual are .
1 Adapting gearbox to motor
2 Adapting transfer case to gearbox
3 Getting all to computors to talk to one another.
But then you know all this already.

Gary

[Homestar]

3 Getting all to computors to talk to one another.

Gary

This is the bit I'm most worried about. Adapting the gearbox at each end can be done, even if there is engineering hurdles to overcome. What worries me is what the electronics are going to think about not having a transmission computer to talk to any more...

That's one of the reasons I'm starting on this now, and not when I might need it again.:p

As for what's been done to the box - quite a bit, but most of the mods he does are designed to give the box a longer life - that may translate into being capable of more power, but not sure. The valve body now has new style valves that will seal inside worn bores for longer. One set of frictions in it have come out of a Commodore box - they are stronger, but need machining to fit. I believe the torque converter is rebuilt better and stronger - this is one of the weak areas, something in there rips itself apart and ends up trashing the whole box.

Will see how it goes for a while before I think about chipping the engine, maybe after the first fluid and filter change to see how it looks inside...

Gav

[33chinacars]

Thanks Gav

Looking forward to more updates

Gary:)

[frantic]

If it helps any I remember an old article comparing manual trannies for blown v8/turbo sixes (in either wheels or street machine) and the supra manual was a clear winner over the gm/ford options with far larger bearings/stronger gears and able to handle far more power. I cant remember what clutch etc they used but look at what they are doing in the jap turbo scene as there is a huge amount of development there with ,massive power outputs.

[Homestar]

Thanks Frantic, I hadn't thought of the Supra box - they are a highly regarded box. I'll do a bit of research on them :)

Cheers - Gav

[Homestar]

Well, after Frantic posted about the Supra box, I started doing a bit more research, and went slightly off tangent, but I may have found a box that would work.

Rather than modify a 2wd box, I got to thinking what other manufacturers use in thier 4wd's. Dare I say it, but Toyota have a 4wd box that may work...

I was looking at the R151F box that was used in the 100 series Land Crusiers. 5 speed box, with ratios that would work.

1st - 4.313:1 (very low compared to the auto)
2nd - 2.330:1
3rd - 1.436:1
4th - 1.000:1
5th - 0.836:1

Strength wise won't be an issue. Although originally used behind the 1HZ diesel, which is a bit down on Hp and Torque than the RR TD6, it looks like it was also used behind the 1HD-FTE which was good for 201Hp and 317 ft-lb of torque, so I don't see any issues here, even if I end up chipping the engine ;)

It looks like this...
http://i1086.photobucket.com/albums/j443/Bacicat2000/R151F-3.jpg

http://i1086.photobucket.com/albums/j443/Bacicat2000/R151F-2.jpg

http://i1086.photobucket.com/albums/j443/Bacicat2000/R151F-1.jpg

I haven't been able to find dimensions for the box yet - still looking, but it looks to be in the ballpark. I am hoping it is a bit shorter thn the auto combination, to allow for an adaptor plate at each end, but that is still to be seen.

Price wise they seem to go for between $800 (for a medium milage second hand unit) to $2,900 for a brand new unit with Toyota factory warranty - not bad really, and I think I should be able to get a good second hand unit, or a reco for around the $1,500 to $2,000 mark, so right on the money there. Availability is very good, as there are tonnes of these in the country, and plently of companies that offer both the boxes and parts.

If anyone knows of, or can find specs/drawings for this box, it would be greatly appreciated. If it dimensionally ok, that may be the first part of the puzzle in place.

Cheers - Gav

[rovercare]

h150 you would use, definately not an r151

h150 is what is behind the 1HD FTE

[101RRS]

Have I missed something - why not a BMW box and bell housing that bolts straight up to your engine as was discussed originally.

If you are going to use a toyota box box then why not a landie box - the manual six speed out of a D3 or even an R380 - if the toyota box can handle the torque of your engine then so will an R380.

Garry

[rovercare]

- if the toyota box can handle the torque of your engine then so will an R380.

Garry

Pffft

[Homestar]

Have I missed something - why not a BMW box and bell housing that bolts straight up to your engine as was discussed originally.

Garry

Availability mostly. The manual version of the X5 was a very rare beast in Aus. I have called and emailed quite a few places, and I have only managed to find one box - condition unknown for nearly $3K. It was out of a petrol version which will bolt straight up I think, but I can't find any technical specs on them, so I don't know if it is the same box they used on the diesel, and if it is strong enough.

Still got a couple of irons in the fire on these, so we will see.

6 speed out of a D3 is too expensive, and I'm not convinced the R380 would be the best solution. There are probably many here that have had no problems with these, but I have friends that have had personal experience with them... If I end up doing all this work, I want a bullet proof solution.

[Homestar]

h150 you would use, definately not an r151

h150 is what is behind the 1HD FTE

Thanks for that - are there known issues with the r151? The h150 looks a lot beefier - I am assuming this is a stronger box?

Cheers - Gav

[rovercare]

Thanks for that - are there known issues with the r151? The h150 looks a lot beefier - I am assuming this is a stronger box?

Cheers - Gav

Yes, 151 not a great box at all, H150 are the goods

Garry is a purist, he is always swayed to stay "brand loyal", R380, even late, are stretched behind a chipped TD5

I think the dramas with your conversion will be attaining the factory look, centre console, gear boots etc

[Homestar]

Thanks. The interior finish is a bit further down my list, but I agree, this will be hard to get looking right, and getting the shifter in the right position will be difficult. I'll figure that bit out once I know I can make a box fit.:p

[Homestar]

Found a good online parts resource for BMW parts. It only lists one crankshaft part number for both the auto and manual versions so there should be a recess for the spigot bearing.:)

Can get a brand new flywheel if needed for less than $700 if I can't get a secondhand unit. I was thinking of using this regardless of what box I use. If I use a non standard box, then I only need to modify the flywheel to suit a different clutch. Starter issues are then also sorted.

Edit - just found I can get a remanufactured gearbox out of Europe for about €2000. Wonder what that would be landed on my door step... I can't seem to find one over here...

[Homestar]

Went around to where the car is at and poked my head under the car while the trannie is still out. The crankshaft does have have provision for a spigot bearing, so I can put that one to bed.

Measured the trannie so I can make sure the manual gearbox will be the same length. Auto is 665mm long, so I just need to find out what length the manual box is.

As these boxes are readily available out of Europe, I think I will go with that. Just trying to get an exact cost on what I can land a flywheel and box here for.

The only other anomily I have found is that BMW list the transfer box as a NV125, not the NV225 that is listed for the RR. I need to find out if the NV225 box bolts up the same, and has the same input spline.

Once I have that info, I would be almost ready to proceed, apart from finding out what the electronics will think of all this, and waiting for my bank balance to recover...:p

[101RRS]

As these boxes are readily available out of Europe, I think I will go with that. Just trying to get an exact cost on what I can land a flywheel and box here for.


Box and flywheel - $3000 2000euros + estimate for flywheel.
Shipping for 60kg - $450 (TNT) - adjust for actual weight.
Customs import duties - $150 (5% of goods)
GST $360 (10% of Customs Duty + Shipping + Cost of Goods)
Customs processing fee $60

So approx all up cost - $4020

Adjust components for actual know costs.

Just an idea of all up costs based on your estimated cost of the box and my recent experience importing 60kg of goods valued over $1000.

Garry

[slug_burner]

RRPhil on this (http://www.rangerovers.net/forum/6-range-rover-l322-mark-iii/33319-nv225-transfer-box.html)thread appears to know a bit about your NV transfer

[Homestar]

Found the answer to the difference between the NV125 and the NV225 transfer cases. The BMW is just an AWD vehicle with no low range. So the 1 in 125 is for one speed, and the 2 in 225 is for two speed... Simple if you think about it....

Still trying to find out if the bolt pattern and spline is the same.

[slug_burner]

found this (http://www.fullfatrr.com/gallery/albums/userpics/10584/FFRR-NewVenture_TransferBox.pdf), don't know if you already have it.

[Homestar]

Thought I'd resurrect this thread as there has been a bit of discussion recently about it and any new info found can be added in here. :)

[Laurie]

Gav
Maybe a variant of this setup might be the answer ?

Electronic Clutch (http://www.pmeautoconversions.com.au/solutions/driving-controls/electronic-controls/electronic-clutch)

Laurie

[Disco Muppet]

Interesting read!
I had a bunch if tabs about clutches for the bmw 5 and 6sp box and then safari crashed!
I'll dig it up and post it here :)
I think I'd rather a standard pedal clutch, but that's just me.

Sent from my HTC One using AULRO mobile app

[33chinacars]

Worried about clutch throw out lever . Use hydraulic throw out instead.

[chaybra]

stumbled across this....

BMW M57 Diesel Engine Adapter Plate to Nissan Patrol GR Y61 Gearbox | eBay (http://www.ebay.com/itm/BMW-M57-DIESEL-ENGINE-ADAPTER-PLATE-TO-NISSAN-PATROL-GR-Y61-GEARBOX-/171849152835?pt=LH_DefaultDomain_3&hash=item280301f943)

didnt know this was a thing?

[Disco Muppet]

YouTube M57 diesel patrol. Fair few conversions. Spinning all 4 on 35s is quite a sight :D

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[loanrangie]

P38 was available as TD6 manual if any parts can be used ?

Sent from my GT-I9300 using AULRO mobile app

[Disco Muppet]

There's this thread...

M57 into 110 CSW - Modified Vehicle Builds & Special Projects - LR4x4 - The Land Rover Forum (http://forums.lr4x4.com/index.php'showtopic=85735&page=1)

He used an R380 from a P38a manual diesel.

[loanrangie]

There's this thread...

M57 into 110 CSW - Modified Vehicle Builds & Special Projects - LR4x4 - The Land Rover Forum (http://forums.lr4x4.com/index.php'showtopic=85735&page=1)

He used an R380 from a P38a manual diesel.

Yeah but thats not an L322 although a great option for a Deefer.

[Disco Muppet]

Nope.
Wonder if you can mate an R380 to the RR transfer.
I know the Dakar trucks running them killed them pretty quick but big difference between Dakar and daily driving

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[chaybra]

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

BMW 5L40E Performance Transmission (http://www.importperformancetrans.com/catalog/bmw-complete-performance-transmission/bmw-5l40e-performance-transmission-5413.html)

Anyone come across or heard of?

[Disco Muppet]

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]

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

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 :p

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]

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

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 :p

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 :) :wasntme:

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 (http://www.rodshop.com.au/)

seeya,
Shane L.

[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.

[DoubleChevron]

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]

I'd almost want the engine too for that price :D

[Homestar]

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

[Disco Muppet]

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

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[Disco Muppet]

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!

[chaybra]

Cruse speed is about 2100 i think.
bigger tyres pulled mine down to 2k.
the peak torque after a tune on mine is about 1800 from memory?

Though, if a gear box was sorted, I cant imagine that many people would keep the power as standard. Its the only thing holding back using these engines to there potential.

[Disco Muppet]

Rakeway aren't responding to my emails, so I guess they don't want to try and sell me a $9k adapter.
So for an L322 the ZF box is probably your best bet. I'm trying to find info on the ratios of the petrol variant of the box I posted up before.
I'm most likely going to use a patrol box, with 3.75 Diff gears and a 1.003 LT230 as that gives good low 1st but also just under 2200 cruising rpm.
Can someone tell me the stock L322 diff ratios? :)

[Pedro_The_Swift]

arent they the same as the D2/1's?
3.54

[Disco Muppet]

Td6 runs 4.10
V8 3.73
From locker in rear diff (http://www.rangerovers.net/forum/6-range-rover-mark-iii-l322/26819-locker-rear-diff.html)

[chaybra]

BMW X5 Trans Gearbox Manual Diesel 3 0 6SPD E53 10 03 12 06 03 04 05 06 in NSW | eBay (http://www.ebay.com.au/itm/BMW-X5-TRANS-GEARBOX-MANUAL-DIESEL-3-0-6SPD-E53-10-03-12-06-03-04-05-06-/201178543381?hash=item2ed72cf515:g:7E0AAOSwVFlUI3E U)

Soooooo, this just became tempting!

[Homestar]

Ooooo....

If I still had mine I'd be on that like a fat kid on chocolate...

[chaybra]

Ooooo....

If I still had mine I'd be on that like a fat kid on chocolate...


Haha, thought you might. the only reason I havent yet is that I go 4x4ing too much and enjoy the auto

[Disco Muppet]

ZFHP26 ftw!
I'm looking to kick my project off soon, lets collaborate :p

Sent from my HTC One using AULRO mobile app

[chaybra]

ZFHP26 ftw!
I'm looking to kick my project off soon, lets collaborate :p

Sent from my HTC One using AULRO mobile app

Likewise, just looking for a suitable wreck to pick up and a disco xfer case/computer!