Landcruiser 100 series conversion to 5.7 litre

If your budget can stand it why not go for a modern diesel.

I have just done a comparison on the petrol versus diesel running costs as follows.

Fuel costs. 17/9/2008

Toyota 200 Series - available in the following motor options.
Diesel 4.5Litre V8 – 195kw – 650Nm Torque at 1600 rpm - 10.3 litres / 100ks
Petrol 4.7Litre V8 - 202kw – 410Nm Torque at 3400rpm - 14.5 litres / 100ks

Toyota 200 series - cost per 100km (average fuel prices Perth 17/9/2008)
Petrol 14.5 x $1.43 = $20.74
Diesel 10.3 x $1.65 = $17.00

NOTE; THIS IS NOT A PLUG FOR TOYOTA – it just that their website made it convenient for the comparison of the 2 technologies on similar size motors of the same vintage.

These figures relate to no-load highway driving, the difference in fuel consumption increases even more when under heavy load – such as towing or off road work.

Last year whilst I was researching the performance of a vehicle I was buying - I read a prominent 4WD Magazine’s test on 3 different makes of 4WD,s – 1 had a diesel and the other 2 had petrol motors, the 3 were all of similar max power output.

Over the same off road course the diesel used approx 50% more fuel than its highway consumption whilst the 2 petrol motors were up approx 100%. One of the key factors being that the petrol motors had to drop down through their gears more often to maintain their torque

My van weighs in at 2.5 tonne tandem axle Jayco Heritage.

I tow it with a 4.2 TD and use about 3-5 k's per litre and I only tow in 4th gear as my first gearbox died and I have a new one now ( don't tow in 5th with an R151F g/box).

While up near 80 mile beach was talking to a few travellers who were also towing and they were all roughly the same....two I will mention were 1x4.2D electronic injection with auto gearbox and 1x new V8 DID and both towing similar size vans both said 3-5 kpl like me...I did not feel so bad.

Towing these big vans against the wind does take it's toll.
The V8 did have the grunt to pass but in saying that I did not consider that was a issue as I travel at 80 to 95 KPH only anyway everything passes me!!!

Plus I am out to enjoy the trip with all the experiences that go with it and not bust my gut trying to break the land speed record.

Hi Silv,

Why not go the Toyota 100 ser. petrol V8 and convert it to gas.

Would have to be cheaper and more convenient in the long run.

And overall, diesel can't compete with gas as it is not the kilometres per litre that counts but kilometres per dollar.

Regards,
Gazal.

One thing to remember with the Gen 3 LS1 engine is that they have a poxy plastic intake manifold that is not suitable for gas, according to Holden and the gas installers I have talked to. But there are a few options such as 1. fitting an aftermarket alloy manifold, like the one Weiand make, or 2. using Direct Injection gas. Option 1 is about $800 + your gas installation. Option 2 is about $4500. Apparently the plastic intakes can blow apart if you get a backfire.

I was thinking about getting my Adventra done but I can buy a lot of petrol for $4500.

i went thru the process of fitting v8 2008 toyo diesel to my 80 series . bering in mind i deal with toyota fitting out their emergancy vehicles . the total cost would be just for motor , gearbox, wiring harness , computors ,without my labour! 28000

Silv, I have a mate with a 4500 80 series, and his son has a V8 100 series, and i have spent much time in and driving both, and even though the 100 is nicer on the road and smooth and quiet, give us the 80 anyday for towing.
The 4500 would pull it backwards, and fuel consumption is better in the 80, both on gas and petrol.
If you must change, it will be a lot cheaper and a lot less headaches to strip the 100 of all your gear if it has any, sell it and go buy a 100 V8 and refit the gear. Convertions have so many pitfalls on modern vehicles, and never work out as cheap as you budget.

Cheers pesty

Shame there's so much waffle about diesels, its all been done.
I was interested in some on topic conversation, and Pesty's friend / brother/ mate of a mate must have the only 4.5 that beats a 4.7 for fuel economy. Spare me!
Let us know how you go Silv I for one am interested in a LS1/2/3 conversion.
Regards

Where are you Silv, if in Brissy I can give you a few contacts that have done the 100 series to 6lt donks. On Trak 4wd is one, Bullet Cars is another. I have not had work done by either these places but both have a fair following from customers I have talked with.
There is another mob, I spoke with up at Brendale but cannot remember the name at the moment. If you are in this region, let me know and I will do some more "rememberring".

Hope it helps a bit.
Regards, Trevor.

PS for towing a 6.6 duramax should fit if that is any interest, for probably similar money to the 6lt LS3 or 4 conversion, no match price wise for the earlier LS1 though. Ask heaps about the 5.7 piston slap if you haven't heard about it.