1hd-ft swap qustions....

[VTCruiser]

Originally Posted by acylon

I am currrently looking into a diesel swap for a fj80 too. I wonder if we could get a group deal from your mechanic, HAHA, JK. I do live in the NW US. What is the differnce between 1HD-T and 1HD-FT? What is the mechanics number?

basically-
1HD-T : 12v
1HD-FT: 24v
1HD-FTE: 24v elec injection

[Mike S]

Originally Posted by harveya

I looked at one from Australia from Air Power Systems. The APS Safari intercooler at 1700 A$ plus shipping. Looks good to me.

The mileage on mine is 140K Miles, gearing is standard (not sure what the ratio is). I will be looking to het the Intercooler later this year or next year money permitting.

The APS intercooler is a front mount unit that goes in front of the A/C condenser behind the grill. All fits up neat so you wouldn't know that it is fitted from the outside. Looks a really well designed system.

I get about 26mpg overall at the moment with the stock engine - it's an auto, manuals can get up to 30mpg.

Thanks, Harvey...

That kind of mileage (along with the additional power) is very attractive. The payback on the cost is easy to calculate...

Cost of engine, 5 speed, extra parts and install - $15k estimated

Cost of driving 2F to 200K miles (14 MPG @ 2.10/US gal.) = $30K

Cost of driving 1HD-T to 200K miles (28 MPG @ 2.10/ US gal.) = $15K

So the payback point is about 200K miles. Something I would expect to do over the next 5 to 8 years, based on my current truck usage. If I ran biodiesel, I could save significantly more - processing some fuel myself. Further, if I deduct the $3K it would take to completely remanufacture the current 2F at, say, 250K miles (currently at 160K), the payback would some sooner.

But the real benefit is the power to travel at good speeds in the mountains, power for pulling a trailer, and to roll on the highway at 80 MPH without stressing the engine.

I wonder what a nicely tuned 2F with a new H55F would bring...?

M

[cruiseruser]

Don't stop Mike, this is all music to my ears! I'm pretty excited about the home brew at 20 cents/gal. too. My running gear (1hd-ft and five speed,) get's on a boat heading this way next week. Take care, Ryan.

[Mike S]

Originally Posted by cruiseruser

Don't stop Mike, this is all music to my ears! I'm pretty excited about the home brew at 20 cents/gal. too. My running gear (1hd-ft and five speed,) get's on a boat heading this way next week. Take care, Ryan.

What transmission will you have? I assume a H15X? It is my understanding that these only work with the full time 4WD transfer case. I would like to hear more on what you're getting...

Sheldon says that there is a way to fit the H55F to the 1HD-T using an Isuzu clutch and different input shaft. I assume the same would apply to the -HD-FT. This would allow the use of the standard split case, and with a little luck, the tranny cross member would not have to be moved or the drive shafts modified. Mudrak seems to think that it is doable. He says that he can do the swap, but "expensive". Still, I believe that in the long run, the economics are better than installing a SBC V8.

I have looked at dropping a Vortec 5.3 crate motor in, and it is cheaper, and a very good motor. But who wants a truck that's just like everybody else's?

M

[beanz2]

Originally Posted by Mike S

What transmission will you have? I assume a H15X? It is my understanding that these only work with the full time 4WD transfer case. I would like to hear more on what you're getting...

Sheldon says that there is a way to fit the H55F to the 1HD-T using an Isuzu clutch and different input shaft. I assume the same would apply to the -HD-FT. This would allow the use of the standard split case, and with a little luck, the tranny cross member would not have to be moved or the drive shafts modified. Mudrak seems to think that it is doable. He says that he can do the swap, but "expensive". Still, I believe that in the long run, the economics are better than installing a SBC V8.

I have looked at dropping a Vortec 5.3 crate motor in, and it is cheaper, and a very good motor. But who wants a truck that's just like everybody else's?

M

The H150f also comes mated to a part time case, I'm not sure about the H151f, I suppose it does as some petrol 80 series come as part time 4WD as well.

Another method to mate the H55 to the 1HDT is to use a 1HZ flywheel or redrill the HDT flywheel for the smaller 1HZ clutch pressure plate.

Dave

[harveya]

Originally Posted by beanz2

BTW, the stock turbo is a CT26, but a CT 26 off a Supra or an MR2 would not fit into the 1HD(F)T.

Dave

That will teach me, thought I kenw more than I actually do, thought the 1HD-T used the CT20 like the 2LT, just bought one on eBay as a spare, guess I'll be selling it then.

DOH!!!!

[Mike S]

Originally Posted by beanz2

...Another method to mate the H55 to the 1HDT is to use a 1HZ flywheel or redrill the HDT flywheel for the smaller 1HZ clutch pressure plate.

Ahhhh. I see. But this assumes an H55F with an input shaft that is set up for a diesel, right? Thanks, Beanz.

M

[beanz2]

Originally Posted by Mike S

Ahhhh. I see. But this assumes an H55F with an input shaft that is set up for a diesel, right? Thanks, Beanz.

M

This assumes only an H55f with a 1HZ input. There other diesel H55f's out there like those mated to the 3B and the 2H that have altogether different input shaft length or spline count.

Dave

[Mike S]

Of course they do! Why should this be simple?

M

[cruiseruser]

Originally Posted by Mike S

What transmission will you have? I assume a H15X? It is my understanding that these only work with the full time 4WD transfer case. I would like to hear more on what you're getting...

Sheldon says that there is a way to fit the H55F to the 1HD-T using an Isuzu clutch and different input shaft. I assume the same would apply to the -HD-FT. This would allow the use of the standard split case, and with a little luck, the tranny cross member would not have to be moved or the drive shafts modified. Mudrak seems to think that it is doable. He says that he can do the swap, but "expensive". Still, I believe that in the long run, the economics are better than installing a SBC V8.

I have looked at dropping a Vortec 5.3 crate motor in, and it is cheaper, and a very good motor. But who wants a truck that's just like everybody else's?

M

Hey Mike. I'm not even sure which tranny it is. Only that it is 5 speed and has 68k on it. Here's a couple photos of the donor vehicle in the U.K. BTW the engine is still available. Don't have a price. Does anyone have any ideas for a cheaper intercooler?

[harveya]

Originally Posted by cruiseruser

Hey Mike. I'm not even sure which tranny it is. Only that it is 5 speed and has 68k on it. Here's a couple photos of the donor vehicle in the U.K. BTW the engine is still available. Don't have a price. Does anyone have any ideas for a cheaper intercooler?

Looks like a Manual (no Auto transmission dip stick visible). If it's an Auto it would be an A442F. Where is it in the UK, I could go and have a look at it and get any info you need if it's close.

[Tapage]

Originally Posted by beanz2

This assumes only an H55f with a 1HZ input. There other diesel H55f's out there like those mated to the 3B and the 2H that have altogether different input shaft length or spline count.

Dave

But the 1HZ egine never came with H55F tranny, always with H150 and H151, in both cases mated to a Split Case HF2H ( 90 and up ) with 2.48 Low.

I'm not sure, but maybe an interesting issue is the input shaft for Diesel engines are diferente than Gas engines..

[HZJ60 Guy]

My 1HZ came with an H55. 1994.

[Tapage]

Originally Posted by HZJ60 Guy

My 1HZ came with an H55. 1994.

:O are you sure .. ? I f you check on internet, HZ or HD are matted with H150 or H151 trannys ..

In my records haven't any other tranny with this motor series.

[VTCruiser]

Originally Posted by HZJ60 Guy

My 1HZ came with an H55. 1994.

mine did too.

[HZJ60 Guy]

Yes it did. They came in the 75 series trucks.

[crushers]

yep, my 1997 HZJ75 has the H55F behind it...

[cruiseruser]

Originally Posted by harveya

Looks like a Manual (no Auto transmission dip stick visible). If it's an Auto it would be an A442F. Where is it in the UK, I could go and have a look at it and get any info you need if it's close.

Thank you Andy. I might need that yet. The wrecker is Douglas Valley Wreckers. Right now things are moving okay, but it's reassuring to have a friend on tap. Do you have any leeds on used diesel intercoolers? -Ryan

[beanz2]

Originally Posted by Tapage

But the 1HZ egine never came with H55F tranny, always with H150 and H151, in both cases mated to a Split Case HF2H ( 90 and up ) with 2.48 Low.

I'm not sure, but maybe an interesting issue is the input shaft for Diesel engines are diferente than Gas engines..

David, as others have pointed out, the 1HZ comes with the H55f in the pre-2000 70 series, with the H150f in the 80 series and with the R151f in the post-2000 70 series and the 100 series.

In the 70 series the transfer behind the 1HZ is always the BF1A (the commonly known as the "split case"), in the 80 and the 100 series the transfer is the HF1A or the HF2A(V). Yes, the later transfer cases are also split cases

Input shafts are so varied, I can think of two cases where the same input shaft is shared between a diesel and a gas engine. One is between the 2F and the 2H in the H41 and the H55, the other is between the 1HDT and the 1FZF(E) in the H151. Maybe there is more in the Hilux/Light Duty Landcruiser line.

Makes one's head spin . . .

Dave

[acylon]

Originally Posted by cruiseruser

Hey Mike. I'm not even sure which tranny it is. Only that it is 5 speed and has 68k on it. Here's a couple photos of the donor vehicle in the U.K. BTW the engine is still available. Don't have a price. Does anyone have any ideas for a cheaper intercooler?

Is that a 1HD-FT?

[corbs]

Originally Posted by VTCruiser

basically-
1HD-T : 12v
1HD-FT: 24v
1HD-FTE: 24v elec injection

What years were the different engines available?

[cruiseruser]

Originally Posted by acylon

Is that a 1HD-FT?

Yup......

[tlcruiserman]

If the engine is a 1HD-FT and has a 5 speed there is a very good chance the transmission is an H151 (could also be the H150, only difference was the gear ratios).

Cheers,

Michael

[harveya]

Originally Posted by cruiseruser

Thank you Andy. I might need that yet. The wrecker is Douglas Valley Wreckers. Right now things are moving okay, but it's reassuring to have a friend on tap. Do you have any leeds on used diesel intercoolers? -Ryan

Ryan.

OK that is a bit north from me in Lancashire however I do get up that way for business reasonably regularly so if you need me to go there I can.

No leads for used intercoolers. You may be able to get one on ebay if you can get the pipes fabbed up. Various ones could be used depending if you want a top mount or a front mount. Top mount gives less lag but less cooling, front mount is better for cooling as you will have more space but the pipe length will add some turbo lag. Standard LC practice is front mount - there is also more space there.

[cruiseruser]

Thanks Andy. I'll let you know how things go. Ryan

[VTCruiser]

Originally Posted by corbs

What years were the different engines available?

not sure exactly, anyone else know?

[harveya]

1HZ available from 1990 I think and still available.
1HDT available from 1990 to 1995
1HD-FT available from 1995 to 1998 I think
1HD-FTE from 1998.

This is relatively guess work based on reasoned knowledge. The FTE was only in the 100 series, FT from 1995 till end of the 80 series.

[corbs]

I'm pretty sure that the 1hd-t started in 1990.
Then the 1hd-ft started either in 1993 or 1994, this I'm not sure of. . .
I think the 1hd-fte stared in 1998 . . .

These are semi-educated guesses, can anyone verify?