The Landrover Cummins (12v 6BT) Conversion

[darrenjlobb]

Several people have asked about this, so thought id make a thread showing bit of what is going on!

Not taking huge amount of photos as its being done asap as got pile of other projects to get on with!

Basically a stock 300tdi, dropping a five nine cummins in it (if you dont know what that motor is, you don't need to be reading this thread ) , dropping truck cab on it and cab stacks etc.

So step one was pull the tdi motor out (tired motor but still running fine, trans is pretty shot though:





The more observant of you will notice my bonnet stacked Hilux in the background hehe.


The motors side by side, 2.5 vs 5.9, you know it makes sence...



Mounted landy transfer box to leyland box with some other changed parts to lengthen up the final drive. Also gave engine quick overhaul (water pump / fuel pump / belts / tensioners etcetc) but nothing to serious as motor is mint quite honestly.

Initial drop in (to get idea for what needs chopping, moving, blah etc






Stock cross member was an issue:



Out again to commence the cutting







Cut of stock engine mounts / cross member mounts off the chassis:



Welded on some older 200tdi style mounts, 2 inchs foward from stock, and on passenger side 2 inchs higher with plate behind (motor mounts are un even on cummins)







Engine up on the front mounts:



Now a bit of improvisation to make new rear cross member, needs to move back, down, and more of a "hoop" to clear the bigger tranny:





Mocking up, ex engine mounts being used for tranny mounts:




Will make up cross member later once over the pit.

Now that engine is "in on mount" took the roof off (putting truck cab on anyway) and pushed it in over the pit.







Still alot of work to do, but at least the motor is in!

Next steps will be custom length props, mounting air tanks, air lines, air clutch cylinder, throttle linkages, custom transfer box linkages / diff lock engage. 4/5inch pipe / stack behind the cab, fab up some intake ducts, cooling, boost, and everything else required to hook the thing up!

I know its not 306 related, but might interest some of you!

[Piggy]

"might" interest....
Soooo epiccccs!
Man I'm all ready to go get me some dimensions and start measuring up the 306 bay!! Haha!!

[Niall]

This is bloody epic. Looking at the engines next to each other, i didnt think that cummins would fit in without a serious bit of shoe horning!

[Dum-Dum]

O-M-F-G-!!!!!!!!


I want one of these more than I want my next breath.




Also repped for

if you dont know what that motor is, you don't need to be reading this thread

[madwelshman]

DEFINITELY of interest to me and something I'd LOVE to do one day, especially as I'm after a 110 to tow my disco based trialer with.
I've seen a few Defenders with this conversion done on Utube. Such a sweet sounding engine and the torque appears to be immense, which is what I need really.

What did you do to alter the final drive gearing then?

[darrenjlobb]

"might" interest....
Soooo epiccccs!
Man I'm all ready to go get me some dimensions and start measuring up the 306 bay!! Haha!!

This is bloody epic. Looking at the engines next to each other, i didnt think that cummins would fit in without a serious bit of shoe horning!

Haha trust me, there is simply NO WAY its going in a 306, these are BIG motors, we have had to chop out alot more than what you can see in the photos! the center console / bulkhead is going to have to be all plated in once we have finished for a much bigger trans tunnel etc, the box is much large, and everything is further back...

[welshpug]

450 odd Kilo's for a 6BT I believe, over roughly 130 for an XUD...

I think the old TDI landrover is around 200 kilos.

[madwelshman]

http://www.youtube.com/watch?v=mwqGaVU8Vug

http://www.youtube.com/watch?v=jLxM8Xfbp0Q

[Piggy]

Something like 200bhp arent these?
And 400ft lbs at 1500rpm?!

[madwelshman]

Mmm, lazy power. PERFECT for towing

[welshpug]

"only" 160 bhp for the early ones i think, 400 lbft indeed.

[Piggy]

Yeah but very early ones...and im sure it will get a quick tune up by DJLobb!

[Dum-Dum]

Yeah standard they have a 12mm Bosch VE and a Holset turbo. There is alot of potential for just winding it up a little.

[darrenjlobb]

Lol they will do 1200hp all day long with a p pump and 55's, but we don't have a drive line for that, its not a big power build this time :p

[WiNgNuTz]

This is all kinds of epic, can't believe you only thought SOME of us MIGHT be interested in this! Love the noise these engines make, will be watching this project with eager eyes!

[Norledge]

*Cough* Bagsey the 300 lump please *Cough*

[Matt-Rallye]

Cummins lump is epic, Landrover is epic... Yep i like this.

Also that 300tdi.. for sale?

[procta]

wait till I show my dad this! He loves his landy to bits!
known you Darren you will push for more power, we just have to wait

[vtec power gt]

Do you think the transfer box will be able to put up with the power they don't last long even with a 300 TDI in front of them do you need a camplate for the Audi pump we have a mountain of pumps at work I could check for you if you want to see if there is one any good for you a pump number that the camplate came from would be handy good luck with the build

[darrenjlobb]

Do you think the transfer box will be able to put up with the power they don't last long even with a 300 TDI in front of them do you need a camplate for the Audi pump we have a mountain of pumps at work I could check for you if you want to see if there is one any good for you a pump number that the camplate came from would be handy good luck with the build

Other people seem to have good success with the stock transfer box, the diffs seem to give more issues tbh...

And yes, if you have ANY 6 cylinder VE's lying around, could you fire me a photo of them / the pump number on them? Cash waiting for even bits of pumps..

[madwelshman]

What did you do to alter the final drive gearing then?

[darrenjlobb]

What did you do to alter the final drive gearing then?

Well the plan is to stick custom gears in the transfer box / possibly change the diffs, we have currently put the longest " off the shelf (Cheap option) gears in there, idea is to get it together, see how it drives, if its no good, then need to start looking into other options, axles semi need upgrading anyway, so might be an all in one kinda thing, but main thing is just get it together / running, and then we have something to base decisions on...

[madwelshman]

I'm guessing you've got a disco transfer box then to obtain the higher gearing in high box.
Diffs are the same Defender & disco, unless Salisbury aren't they, so nothing to gain there.

[darrenjlobb]

Needed to flip the sump around to clear front diff, so extended / re routed the oil pickup to accommodate:











Cleaned sump up:



And re fitted:





Just started work on the gear lever, There is a ZF 5 speed stick shifter , but cant find one in the uk, and going to cost around 150+ to import one, so going to try and make the landrover one work..Can make it work ok, but falcrum point is a bit high really, may try chopping in half, but dont have spare welder to run spool gun to weld ally at the moment, so posing a bit of an issue!

[tenwierdufos]

Never seen anyone use silicone pipe inside a sump before!

Nice work on the conversion, looks ace

[Danny Wideboy]

Takes balls to even start a project like this.......

[Piggy]

No problems there.

Darren has huge iron ones

[darrenjlobb]

Never seen anyone use silicone pipe inside a sump before!

Nice work on the conversion, looks ace

To be fair, its not ideal, and its not acaully what I intend on leaving there...but dont have any steel tube of the correct length at the moment.

The hose is VERY heavy duty / steel wrapped and oil / diesel rated, but the "outside" of the hose in theory isn't, so although would last years I wouldn't recommend it.

We have an oil pressure gauge to mount to keep eye on it, and will weld up a proper suction tube at some point once its up and running!

Bit more work today, gear stick was needed, using original ZF box from the DAF, so used to have cable setup / no use at all i a landrover where you need a stick right out the box.

Top of the ZF:



So made up an adapter plate to sit between the two halves: (Yup, last two bolt holes torched out with plasma cutter due to epic fail in the pillar drill department!!!!




Stripped down the OEM tower / lever:



Welded the ZF ball on the end and extended the lever:



Then mounted it all up:



OEM+ hehe

[Piggy]

Thats sweet!! Nice work

[306Dan]

God I love this project, makes me think of doing something crazy to my landy.