Wanting to turbo a 5L Hilux (2 Viewers)

[maxdaaxe]

I have a 1999 2wd Hilux and I'm wanting to turbo it. I've been looking through previous threads on here about putting a turbo on a 5L though I'm not that experienced with diesels, and feeling that the answers aren't as specific as my knowledge requires. I currently have extractors, so I'm assuming they will have to be removed and replaced with a cast log manifold as my current budget most likely wouldn't allow me to buy a tubular manifold. I've seen that the TD04-13T is suitable for this application. I'm not sure how much boost I want just yet, not looking to go too silly, how much would be safe to put through an engine with 315 000 kms? I hear that @gerg and @Dougal are quite knowledgeable on the subject.

Thanks in advance for any help anyone can provide!

 

[Dougal]

Pretty much. Keep it to single digits of boost and don't wind the fuel past an EGT of 650 or AFR of 20 and you'll be fine.

How the air filters have been maintained is a better indicator of engine health than mileage. If it's still starting well your compression is still good.

 

[maxdaaxe]

Pretty much. Keep it to single digits of boost and don't wind the fuel past an EGT of 650 or AFR of 20 and you'll be fine.

How the air filters have been maintained is a better indicator of engine health than mileage. If it's still starting well your compression is still good.

Thanks for your help!
I have a K&N filter so there's no real indication coming from that. But she has been struggling to start recently, likely because its so cold in Aus at the moment. I have an old Mazda B2500 with a WL84 turbo on it, and I'm thinking about possibly using that, and the intercooler from it too. It seems like it makes about 13-15 psi stock on the WL-T engine, am I able to keep that within those single digits, or do I just need to go with a different turbo anyway?

 

[Dougal]

Thanks for your help!
I have a K&N filter so there's no real indication coming from that. But she has been struggling to start recently, likely because its so cold in Aus at the moment. I have an old Mazda B2500 with a WL84 turbo on it, and I'm thinking about possibly using that, and the intercooler from it too. It seems like it makes about 13-15 psi stock on the WL-T engine, am I able to keep that within those single digits, or do I just need to go with a different turbo anyway?

A K&N filter will have let in dust and caused wear. Get a compression test.

 

[maxdaaxe]

A K&N filter will have let in dust and caused wear. Get a compression test.

I did recently oil the filter and there was no sign of dust anywhere on the clean side of the filter and air hoses

 

[Dougal]

I did recently oil the filter and there was no sign of dust anywhere on the clean side of the filter and air hoses

The particles they let through are too small to see. They're absolutely terrible things for engines. You will need a compression test.

 

[maxdaaxe]

The particles they let through are too small to see. They're absolutely terrible things for engines. You will need a compression test.

Right. I'll try to do it this weekend

 

[maxdaaxe]

The particles they let through are too small to see. They're absolutely terrible things for engines. You will need a compression test.

Ok I've just done the compression test.
All 4 cylinders are at exactly 400psi after 8 cycles (the gauge ticks up 8 times).
I've had no luck so far finding a TD04 near me that isn't priced ridiculously or needs a rebuild. The only working one is a Maxpeedingrods copy and they don't seem to review well.
Is the WL84 turbo suitable because I do have one already with intercooler too.

 

[Dougal]

Ok I've just done the compression test.
All 4 cylinders are at exactly 400psi after 8 cycles (the gauge ticks up 8 times).
I've had no luck so far finding a TD04 near me that isn't priced ridiculously or needs a rebuild. The only working one is a Maxpeedingrods copy and they don't seem to review well.
Is the WL84 turbo suitable because I do have one already with intercooler too.

That's weird. No-one gets exactly the same result on all cylinders. But oh well.

TD04 you'll be looking at aftermarket copies. The Mazda turbo will work but I don't know anything else about them.

 

[maxdaaxe]

That's weird. No-one gets exactly the same result on all cylinders. But oh well.

TD04 you'll be looking at aftermarket copies. The Mazda turbo will work but I don't know anything else about them.

Yes the gauge goes up to 1000 psi which is insane but that means it is harder to tell exactly where it is.
I think I'll pull apart the Mazda this week and just have a look. I might end up just modifying all the parts from it to fit to my ute, plus I remembered yesterday that it actually has a boost controller so I won't have to muck around with wastegates.