t-td5 twin turbo td5

'Lara' from Belgium on lr4x4 has a stroked, VNT Td5 in a 90 with obscene amounts of torque.
Wander over there and do some reading. He also kept snapping Maxi axles like pretzels apparently, so ended up getting the axle supplier to Williams GP Engineering to turn some up out of some unobtanium, heat treated by Q in between jobs for 007.

Apparently they hold up now.

Mere mortals would just use D60 side gears in a Sals, bore out the stub axles and use some quality US made 35 spline D60 axles and save a few thousand $.

<edit> http://forums.lr4x4.com/index.php&#39;sh...k&fromsearch=1
258bhp @ 4000 and 430lb/ft torque @ 1750
Steel 4340 crank 100mm Stroke
Steel EN24 Connecting rods, 5.5mm shorter than standard,
Modified standard size pistons,
Raised compression from 19.5 to 20.5:1
Modified oil spray jets,
Ported head with 1mm larger inlet valves,
Ported and matched inlet manifold,
EGR removed,
Tubular exhaust manifold made to match
Garret GT25/59V Variable vane turbo
1.8 Bar boost (26psi)
(Originally done at 1.5 bar and very black)
JJF tuned ECU
Free flowing exhaust system, (still a little restrictive probably)
High tensile head studs,
High tensile main bearing bolts,
Large intercooler from JE Eng, (soldered core, not bonded)
Fabricated stainless boost pipes with heavy lips to stop from blowing off under boost.
ZF HP24e Auto box with race internals and 12 inch torque converter.
Self made halfshafts in Maraging 300 as everything else snapped within 10 minutes of use.

And Dobbo, gives us some bloody warning next time, unlike Jerry's warm yoghurt moment, I nearly spat 'erbal tea all over the bloody monitor......

As Rick says, I would think Lara's is the most modified, powerful, TD5 ever made. Its a 2.8l from memory. Truly awesome car in every way.

Quote:

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Originally Posted by rick130

And Dobbo, gives us some bloody warning next time, unlike Jerry's warm yoghurt moment, I nearly spat 'erbal tea all over the bloody monitor......

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Not the 'erbal


try Chai, it doesn't stick to monitors

jaguar used two in its version of the tdv6 , you dont use two in the disco tdv6 2.7 because you want to be able to achieve low down torque for rock crawling or towing a three and a half tonne trailer.
however the new version of this engine the 3.0 tdv6 which is the bored and stroked version of the former, does use two turbochargers though not in a way that has ever been feautured on an engine like this before.
the engine is fitted with a single vgt that is much smaller than normal as it is really suited to an engine of only half the the size but it works well at low revs and gives superb performance and quick response. this is joined by a FGT -fixed geometry turbo at engine speeds over 400 rpm and together they go on to produce the boost needed for higher engine speeds.
Whilst twin turbos are common enough especially on bigger engines this is the first use of the unique parralel sequential turbo system.
Land Rover claim the system is the first of it's type to be fitted to a V-engine anywhere in the world.......so when you selling your defender should i start saving now?

Quote:

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Originally Posted by lardy

jaguar used two in its version of the tdv6 , you dont use two in the disco tdv6 2.7 because you want to be able to achieve low down torque for rock crawling or towing a three and a half tonne trailer.
however the new version of this engine the 3.0 tdv6 which is the bored and stroked version of the former, does use two turbochargers though not in a way that has ever been feautured on an engine like this before.
the engine is fitted with a single vgt that is much smaller than normal as it is really suited to an engine of only half the the size but it works well at low revs and gives superb performance and quick response. this is joined by a FGT -fixed geometry turbo at engine speeds over 400 rpm and together they go on to produce the boost needed for higher engine speeds.
Whilst twin turbos are common enough especially on bigger engines this is the first use of the unique parralel sequential turbo system.
Land Rover claim the system is the first of it's type to be fitted to a V-engine anywhere in the world.......so when you selling your defender should i start saving now?

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I think Land Rovers Marketing/Advertising people are using the truth carelessly if they are making those claims.

Quote:

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Originally Posted by Bush65

I think Land Rovers Marketing/Advertising people are using the truth carelessly if they are making those claims.

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Indeed...

Quote:

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One of the most technically advanced diesel engines in the world, the new LR-TDV6 Advanced Sequential Turbo Diesel engine features unique parallel sequential turbochargers. Used for the first time in a V-engine, these optimise responsiveness by delivering increased Torque at very low revolutions.

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However I note they are careful with their wording. They could just be saying they are the only engine using these specific turbochargers in sequential configuration.

http://www.landrover.co.uk/gb/en/veh...ion.htm?page=1

G'Day, Stig0000.
As the others have already stated, your goal sounds very time consuming and expensive. Even doing the fab yourself, you are going to have upgrade the entire intake and exhaust systems and reprogramme the computer to suit. Yet, by doing this with the standard Turbo, you will see some great gains anyway!
If you are looking for 600nm+ of torque, you may as well go for a Barra Ford XR6T package, for the same price as your custom crank. They put out 550nm at 2000rpm standard, way exceeding the TD5s 340? at 1750ish. So, you won't be missing any low end pull. I've seen complete (incl. comp and all sensors) packages for ~$6k.

If you still want to go TTD5 (T2D5?), give the CT12 snails off a Toyota 1JZ motor a go. You should be able to pick 'em up for a pittance as the street machiners ditch them for steel compressor wheel replacements(big rev reliability).
The 1JZ is a 2.5lt petrol, with sequential turbos, made for vehicles in the 1800kg range, hence designed for torque. It'll mean a fidlly bit of fab for you, but we all need a hobby, I guess ; ))
I hope this helps.
Dave.

I think you could order a duramax and try to wedge it under the bonnet (it might stick out a bit) then problem solved, 300+hp, VGT, common rail with solenoid/piezo injectors straight out of the box. Some jokers in the US are getting 1000hp out of them, though I don't know why someone needs to do this, I just change gears to get up hills :).

We have developed a VNT turbo for the TD5 that is a bolt on fitment to the existing manifold and exhaust, wth only a slight modification to the oil return pipe.

It will deliver 19psi from arround 1400rpm all the way throught the rev range

http://www.bellautoservices.co.uk/VNT1.jpg


Pete