Triple Turbo 2H Engine

[chookenz]

Yes, its what the title says, curious to know what your opinions are, its been posted online before so youve probably seen it.

posting on any page regarding a 2h engine

 

[chookenz]

70 psi at 2200rpm only done the head gasket which is copper and a 12mm td42 pump rest is stock

 

[Locked79]

Its also in the diesel section

 

[AndrewHadji]

What mpg are you getting <snicker>

 

[GTSSportCoupe]

Wonder how them piston ring lands are faring?

Needs more yellow paint.

None the less...impressive.

 

[Gun Runner 5]

I almost feel sorry for the ole 2H.

 

[chookenz]

this is from a bloke who tests limits on 2h engines. heres one dyno run pushing at about 30-40 psi i think


more videos to come on the triple setup.

 

[ForealBoreal]

is it bad that i feel slightly aroused.

 

[chookenz]

No not at all

 

[Sweatyforehead]

Very impressive, I would love to see how this turns out.

I guess the cam is stock too?

 

[chookenz]

All stock except the head gasket and the 12mm td42 pump to keep up with the engine. And I think a bigger pulley in the water pump so it can cool and flow through the head a lot quicker

 

[Sweatyforehead]

Interesting that you went with the td42 out of the Patrol, why not swap in the fuel pump from the 12HT?

 

[Dougal]

The 2h will not live long. It's high compression and doesn't have pistons with reinforced ring lands.

But the biggest problem will be heat generation. The 2h doesn't stay cool easily with single digits of boost and idi heads transfer so much heat into the coolant that local boiling is a problem.

But that turbo arrangement has no advantages and several disadvantages over a 2 turbo compound setup.

What are the turbos? The small ones look too big and the big too small.

 

[chookenz]

Plenty of experts on this forum but none the less.. See how he goes

Interesting that you went with the td42 out of the Patrol, why not swap in the fuel pump from the 12HT?

He mentioned that the patrol one was better of the 2 to handle this setup

 

[ozcrusier]

Man that's a weapon hope it holds together for him.

 

[Dougal]

Plenty of experts on this forum

Well if you want someone who can do the maths behind turbine and compressor sizing of compounds. The list is pretty short but I'm on it.

Turbine size has to double (flow wise) from the first to second stage. Because he's running two turbos in parrallel for the first stage then his big turbine needs to be 4x the flow of the small ones or the turbines fight each other for pressure ratio.

This clearly isn't 4x.

The youtube video of the single turbo shows a retarded amount of smoke and a turbo coming on stream in a way that shows it's massively oversized and only spools through overfuel.

If you dial the fuel back to levels of safe EGT then it won't spool at any useful rpm. If you run it at as rich as the video then you'll be cracking heads and melting/swelling pistons in short order.

There was a hot smokey 2H video posted here a few years back which claimed 300hp. The engine didn't last long enough for any more videos.

You also need a smaller water pump pulley for more flow. Not bigger.

 

[chookenz]

Each to their own it's a fun project

 

[Dougal]

Each to their own it's a fun project

With a bit more homework and a better base engine it could be a fun project that would work and last.

 

[roma042987]

any reason you posted this same post in the 40 60 and the 70 section?

 

[ozcrusier]

My guess is all these models run this engine from the factory so old mate is showing us what the mighty 2H can achieve before melt down.