Thread: V8 diesel conversion on Perentie

I just had the stock td4 that was grafted onto SWMBOS disco internally redone and rejigged and made to push 40PSI....

cost me $950.

go buy a cheap wrecked turbo in the flavor you like and rebuild it.

it often works out cheaper and you usually score a manifold to abuse.


with the right wheels on it the td4 should work nicely as the push turbo for something like a t40.

Originally Posted by DirtyDog

Where are you guys getting your turbos from??
A decent brand name turbo by itself will cost me more than that...
The small high pressure turbo you might be able to find one for $1000-1500
But the big atmosphere turbo I couldn't pick up a decent mid-range Garrett for under $2500
A half decent front mount cooler will cost $1500
These are just the main components there are lots of other bits and pieces that end up adding up to a good chunk of money...

TD04HL 19t and Chinese gt3582 will do it.
I've already sized these for compressor and turbine match in a compound set.

Good points, this is sounding like a little bit of fun...
Has anyone got a compound turbo setup on the Isuzu??
What sort of numbers are people getting out of their modified Isuzu single turbo set-ups and how hard is controlling temps while running 30- 40 psi,
Are you guys using FMIC, SMIC or V-mount coolers??
How does the running gear hold up? And is reliability compromised?

Originally Posted by Blknight.aus

well thats a totally different kettle of fish.

If you want real power might I suggest the turbod version of the detroit (or GM) 8V92

I can also reccomend something in the range of jet turbine engines.

Dave, I am sure you had tongue firmly in cheek when you wrote that. An 8V92TA weighs over 1 ton and would need the likes of a 1200 series Roadranger or a 1420 Spicer to stand up to one.

The Detroit 8.2 litre was not a very good engine. Had lots of problems. Good concept and clever design features but the end result was not a happy one.

Originally Posted by DirtyDog

Good points, this is sounding like a little bit of fun...
Has anyone got a compound turbo setup on the Isuzu??
What sort of numbers are people getting out of their modified Isuzu single turbo set-ups and how hard is controlling temps while running 30- 40 psi,
Are you guys using FMIC, SMIC or V-mount coolers??
How does the running gear hold up? And is reliability compromised?

I'm not aware of any currently running compound isuzus. Carcrafter did his one accidentally up to triple figures of boost. Custom injection pump, big front mount it, will over 500hp but personal problems led to the vehicles demise.
One of the guys here fitted a compound set but had issues with gearbox rattle and removed it. You need to double the flywheel inertia when you double low end torque.
One guy in the US currently finishing an 80 series cruiser with compound 4BD1T.

I want to one day. But life keeps getting in the way. Bush 65 has a 4BD1T and compound turbos off an international diesel but not sure on current plans or progress. Stock 4BD1T injection pump has over 200kw worth of fuel delivery.

Landrover do not make a gearbox that will survive. The lt230 transfer is good. I have an isuzu 5 speed gearbox.

Originally Posted by Brian Hjelm

Dave, I am sure you had tongue firmly in cheek when you wrote that. An 8V92TA weighs over 1 ton and would need the likes of a 1200 series Roadranger or a 1420 Spicer to stand up to one.

The Detroit 8.2 litre was not a very good engine. Had lots of problems. Good concept and clever design features but the end result was not a happy one.

maybe.....

but they do make nice power......

I happen to know for certain a tale involving a drunk trooper and a drunk mechanic and an ASM with a sense of misadventure back in about 2001 who might have had a 6v53 out of an m113 for repair works while there was a 6x6 there with the engine out and phrases like "wouldnt it be cool?" are you drunk? "yeah" welll you know...... and huh, looks like it will squeeze in there, I wonder if "NO" and "you drunken idiots put the engines back in the right vehicles and go back to the boozer"

Could have been down in sydney, say holsworthy-ish

Originally Posted by DirtyDog

Not doubting that for a second but it is a very old truck engine in essence, I'd also like to be able to tow a half decent load... Another reason is simply because I enjoy having a project and building up my own vehicles and I think the Perentie has lots of room for modification, and because a nice big v8 will be a lot more fun.

While all that money is being spent on powering it, put more aside for engineering it to legally tow more than 1200 kg if that is your desire.


Bruce

The Perentie will be living up north in WA, don't have to worry about engineering as long as its safe...