2H Exhaust manifold fliped !

[Henry James the 47th]

Any updates?

I can see that the air cleaner will be re-located to the right side, but what will you do with the battery tray?

[Tapage]

Originally Posted by Henry James the 47th

Any updates?

I can see that the air cleaner will be re-located to the right side, but what will you do with the battery tray?

mmm sorry my bad .. I've been not pass at the garage in a few weeks .. I hope this weekend have time to go and see how it's coming the project ..

[rchalmers3]

Henry,

Are you gonna go turbo? Did you obtain a manifold or are you still strategic planning??

Rick

[Henry James the 47th]

Still strategic planning, though I'm pretty sure turbo is the route i will be taking. I have a Bandeirante power steering gearbox in the stock location, and the power head on it takes up an awful lot of space. So, the idea of putting the turbo up high with a flipped manifold seems to be a good direction. If that means that the air cleaner can't be used in its stock location, then either I will have to go with a Dobinson's mounted out on the fender, or with an aftermarket air cleaner that can be tucked into place somewhere. I'm not sure i would want to relocate the battery and re-configure the wiring, but that is of course another option.

I'd like to get a hold of a dead 12H-T engine for parts. For one thing, it would be nice to bolt the crankcase web stiffener plate from the 12H-T into the 2H. It would be even nicer to retro-fit piston skirt cooling nozzles, though I also understand that there are alternative piston designs that tolerate higher temperatures and make the piston skirt cooling unnecessary.

My engine has just over 300,000 km, so i know it is a borderline candidate and that the turbo will likely shorten the remaining life of the engine somewhat, but the benefits of the turbo seem too great to ignore.

Please excuse the thread hi-jack!

[Jan-78FJ40]

there's a manifold on ebay australia

Landcruiser HJ47 / HJ60 EXHAUST MANIFOLD. - eBay (item 380042289228 end time Jul-08-08 03:37:00 PDT)

j

[Henry James the 47th]

The two piece manifold is probably a better design than the one piece, it seems to me.

[Jan-78FJ40]

Originally Posted by Henry James the 47th

The two piece manifold is probably a better design than the one piece, it seems to me.

Don't know.
the one-piece I had on for a year did not leak.
also, most turbo kits come with a one-piece, and don't seem to leak.

J

[marting]

Originally Posted by Henry James the 47th

Still strategic planning, though I'm pretty sure turbo is the route i will be taking. I have a Bandeirante power steering gearbox in the stock location, and the power head on it takes up an awful lot of space. So, the idea of putting the turbo up high with a flipped manifold seems to be a good direction. If that means that the air cleaner can't be used in its stock location, then either I will have to go with a Dobinson's mounted out on the fender, or with an aftermarket air cleaner that can be tucked into place somewhere. I'm not sure i would want to relocate the battery and re-configure the wiring, but that is of course another option.

I'd like to get a hold of a dead 12H-T engine for parts. For one thing, it would be nice to bolt the crankcase web stiffener plate from the 12H-T into the 2H. It would be even nicer to retro-fit piston skirt cooling nozzles, though I also understand that there are alternative piston designs that tolerate higher temperatures and make the piston skirt cooling unnecessary.

My engine has just over 300,000 km, so i know it is a borderline candidate and that the turbo will likely shorten the remaining life of the engine somewhat, but the benefits of the turbo seem too great to ignore.

Please excuse the thread hi-jack!

The 12HT pistons have a "hole" in them... Like a spoon... This gives the 12HT lower compression..
I know people that have run 2H turboes with way too much boost (no wastegate, min. 17psi) 100 000 km's without any issues..

[crushers]

nice job there tapage...
shoot a vid with that rocking setup when you get a chance...

[Henry James the 47th]

Originally Posted by marting

The 12HT pistons have a "hole" in them... Like a spoon... This gives the 12HT lower compression..
I know people that have run 2H turboes with way too much boost (no wastegate, min. 17psi) 100 000 km's without any issues..

That's good to know- thanks!

[Henry James the 47th]

Originally Posted by Jan-78FJ40

Don't know.
the one-piece I had on for a year did not leak.
also, most turbo kits come with a one-piece, and don't seem to leak.

J

I was looking at it from a design point of view only, not saying that one-piece manifolds were defective, or prone to problems or anything like that.

This is what i was thinking: since the exhaust manifold heats up a lot, and the cast iron expands, it seems better to reduce stress build up over the piece, and this a a 2-piece casting is a good way to do that - moreso than a one piece. Since a two-piece likely cost money to develop, and would involve two molds not one, and thus be more costly to produce, then it is likely, to my way of thinking, that they did so as a design improvement not as a cost-cutting measure. Toyota may also have been seeing a certain unacceptable percentage of failures in the one piece manifolds, over the 5 years or so they were used, to speculate a bit, that may have prompted the move to the more costly 2-piece.

[rchalmers3]

I'm thinking the one piece manifold retains the built up exhaust gas pressure while the 2 piece may leak a little. Anyone see that as an issue?
BTW, I contacted Turbo-Glide in Australia. They are willing to sell their one piece manifold for the 2H for $480AUD. I like this manifold 'cause the turbine can't get any closer!

Here's a pic
Rick

[crushers]

$480 AUD = $470 Canadian is a good price for the manifold...

thanks for posting

[Tapage]

Originally Posted by rchalmers3

BTW, I contacted Turbo-Glide in Australia. They are willing to sell their one piece manifold for the 2H for $480AUD.

Good to know .. I was no luck with TG years ago when ask for the exhaust manifold alone ..

[rchalmers3]

Tapage,

Cuanto puesto for the adaptor you used to mount the turbo on Tencha? That looked very good for saving money.

Rick

[Tapage]

Originally Posted by rchalmers3

Tapage,

Cuanto puesto for the adaptor you used to mount the turbo on Tencha? That looked very good for saving money.

Rick

I spend close to 200 bucks here in Panamá for the adapter .. sure when all stuff related was much more cheap than now.

[Tapage]

Old thread .. but I was in the shop on saturday ..







It's already running and running strong ..

[Henry James the 47th]

Was there no way to keep the air cleaner over on the left side of the engine bay?

[Tapage]

Originally Posted by Henry James the 47th

Was there no way to keep the air cleaner over on the left side of the engine bay?

Drivers side .. ? ( LHD )

[rchalmers3]

Que linda! She looks beautiful with the painted parts.

Rick

[Dieseler]

Just curious are you going to install a heat deflector on the hood,with the turbo sitting so close to the hood is it not going to cook the paint in the area of the turbo.

[Henry James the 47th]

Originally Posted by Tapage

Drivers side .. ? ( LHD )

Yes, driver's side for LHD - that is the normal location for the air cleaner for 2H installs in 47 series - whether LHD or RHD. It seems to me that is would be ideal to keep the air cleaner where it is, since moving it over to the other side means moving the battery as well. Do you think the turbo could be positioned in such a way as to allow the air cleaner to stay where it is?

[rchalmers3]

Originally Posted by Henry James the 47th

Yes, driver's side for LHD - that is the normal location for the air cleaner for 2H installs in 47 series - whether LHD or RHD. It seems to me that is would be ideal to keep the air cleaner where it is, since moving it over to the other side means moving the battery as well. Do you think the turbo could be positioned in such a way as to allow the air cleaner to stay where it is?

Henry James!!

From experience I concur that the air cleaner can is on the drivers side on LHD 47 series trucks.

However, this rig is a 40, as noted by some photos from the earlier part of the posts by Senor Tapage. Would this detail make a difference?

Rick