Best Turbo for 3B Diesel...

[tlcruiserman]

Hello group,

Well you can take this post as my personal preference but I have a few 3B engines and several different turbos and I have even swapped a few to make sure to be fare to all the turbos. Here are the Turbos and my rating of them:

Toyota CT-26 (13B-T setup)
AXT Garret Turbo
Turboglide Garret Turbo (M24)

I can now say with all confidence that I like the Turboglide best of all. The AXT comes in second and the Toyota comes in last place (really close to the AXT though).


The Turboglide one wins mainly because of simple design, low cost, and great performance. The m24 looks pretty small compared to it's competition however it is rated up to a 3.9L so on the 3.4L you get almost zero turbo lag, and it has plenty of power at the top end as well. I like the fact that this is a simple setup and comes with everything you need for the low price of around $2600 AUS. The Turbo does not use the water jackets just the oil lines and that does help keep the engine temp down.

The AXT is the one I started using years ago and although it works pretty well I do not like the exhaust port with the compression flange setup, it is a real hasle if you want to do pipes bigger than 2". I also do not like that it is using the water ports as well as the oil ports. Just about everyone I talked too says the diesels do not need to use the water ports and my experience on the 3B is that it helps more raising the temp then cooling it off. Also the intake hose is a slightly reenforced hose that will not last more than 6 months.

The Toyota setup is very clean and if you can scavenge the parts from an old 13B-T you will have just about everything you need. But lets be real for a minute they still use this CT-26 to power the 1HD-FT the CT-26 was designed to work with engines up to 4.5L Pretty big for a little old 3.4L and why they put it on the 13B-T is a mistery unless it was the only one they had at the time. Even when it is mapped to the 3.4 it still leaves some turbo lag, and if you offroad a lot you will find it rarly get a chance to spin up. the factory one also uses water ports in addtion to the oil ports.

I will try to include pictures later of all three setups.

Cheers,

Michael

[crushers]

real life experience...nice post...

[Dougal]

The turboglide turbo with M24 cast into the compressor cover is a Garrett T25, ain't it great?

Can you identify the AXT turbo?

[cruiser_guy]

Micheal, is your CT26 from the 13B-T or Supra or MR2? I have CT26's from both the Supra and the MR2 and the wheels and housings ARE different. I was going to try to mix and match and you cannot even assemble the parts unless you have the right wheel with the right housing. I suspect that the CT-26 has different trims for different engines but the same basic design is used on many engines.

[tlcruiserman]

Originally Posted by Dougal

The turboglide turbo with M24 cast into the compressor cover is a Garrett T25, ain't it great?

Can you identify the AXT turbo?

It is a garret but bigger than a t25 almost the size of the CT-26 I will look again but I did not remember seeing any marks on them.

[tlcruiserman]

Originally Posted by cruiser_guy

Micheal, is your CT26 from the 13B-T or Supra or MR2? I have CT26's from both the Supra and the MR2 and the wheels and housings ARE different. I was going to try to mix and match and you cannot even assemble the parts unless you have the right wheel with the right housing. I suspect that the CT-26 has different trims for different engines but the same basic design is used on many engines.

That is good to know, I thought a CT-26 is a CT-26 no matter what. I just ordered a seal kit for a CT-26 and I am sure from where I got it, it is for a Supra CT-26 and mine is from a 13B-T. I hope it is just the housing and the guts are the same.

In answer to your original question the CT-26 is from a 13B-T. I have compared the 13B-T turbo to a 1HD-FT and they look pretty much the same housing is just turned differently for under verse over manifold application.

[tlcruiserman]

Here is a picture of a Toyota 13B-T turbo (CT-26) that was put on my 3BII (Thanks Wayne ). This is a pretty good setup and to the non-cruiser enthusist it looks stock. We have the stock thermostat housing, intake runner, heat sheilds, and intake hose all from the original 13B-T. plus the fabricated adapter plate (3BII has different exhaust manifold). This worked very well and with the turbo mapped to the 3BII turbo lag was not that noticable, however when wheeling at Moab and places with a lot of technical obsticles the turbo is really not used much, with 35" tires 4.11 gear in low range with the H55F the engine is using a lot of low end torque, and the turbo does not even spin up at those low RPMS. Awesome on the top end and hiways

[tlcruiserman]

Here is a picture of an AXT turbo (first one I did back in 99') on a 3B in a BJ42. I took an overhead shot if it because the turbo gets hidden by the plumbing and intake hosing. The second picture is a clear shot on what I hate most about this turbo and that is the compression flange setup to route the exhaust they give you a mandral bent pipe however you will need to modify it especially on a 40 series (I am pretty sure this kit was originally for a 70 series). The price on the AXT is also one of the highest, I bought it from a dealer in the us and it was around 4k USD. the price has come down abit but it is still over 3k for the kit, that is a lot compared to Turbo-glide at 2600 AUS. You can also tell from the pictures that this using the water as well as the oil so additional plumbing. I would say this turbo is better suited for the 3B overall than the Toyota CT-26.

[wesintl]

Just do away with the wastegate completely

FWIW I looked at an axt in moab and you'd be hard pressed to be able to tell that apart from a volvo t3.

[tlcruiserman]

Originally Posted by wesintl

Just do away with the wastegate completely

FWIW I looked at an axt in moab and you'd be hard pressed to be able to tell that apart from a volvo t3.

It could be a T3 Garret that they are using, It would not surprise me.

[tlcruiserman]

Here are a few shots of an AXT turbo on a 70 series (I did this one in 2002. You will notice how the inlet hose will rip after a while (and it is a very weird metric size) and you must also relocate the PS resevoir to make room for that damn exhaust pipe again .

[tlcruiserman]

Here are some shots of the Turbo-Glide on my 3BII, yep they even had an exhaust manifold for a 3BII and new all about them. Looks smaller but spins up great, power from start to top end with no problem. Ok, the one problem is I can't hear the turbo whine nearly as much on this one but everything else is awesome. You can also tell from the pictures that this Garret turbo only uses the oil feed no water to hook up, I personally think this helps keep the engine temp down under load.

I also included a picture of how I solved the exhaust issue in the wheel well. Normally I just run the exhaust on the inside of the frame of a 70 series, but in this case I have the cables from the cable lockers in the way, they are big and I would hate to have to replace them, doubt I could find then and if I did I am sure the price would be crazy. So in this case I started on the inside and moved to the outside just behind the wheel well.

Cheers,

Michael

[Greg_B]

Originally Posted by tlcruiserman

That is good to know, I thought a CT-26 is a CT-26 no matter what. I just ordered a seal kit for a CT-26 and I am sure from where I got it, it is for a Supra CT-26 and mine is from a 13B-T. I hope it is just the housing and the guts are the same.

In answer to your original question the CT-26 is from a 13B-T. I have compared the 13B-T turbo to a 1HD-FT and they look pretty much the same housing is just turned differently for under verse over manifold application.

The vane ratios are different iirc. CT-26 is in a host of applications so makes sense it is the housing that simply uses the term CT-26. Also, look at the boss's for the waste gate. While the housings are the same, different bosses are tapped, depending on application and turbo orientation.

gb

[crushers]

nice clean install... i like it...

Originally Posted by tlcruiserman

Here are some shots of the Turbo-Glide on my 3BII, yep they even had an exhaust manifold for a 3BII and new all about them. Looks smaller but spins up great, power from start to top end with no problem. Ok, the one problem is I can't hear the turbo whine nearly as much on this one but everything else is awesome. You can also tell from the pictures that this Garret turbo only uses the oil feed no water to hook up, I personally think this helps keep the engine temp down under load.

I also included a picture of how I solved the exhaust issue in the wheel well. Normally I just run the exhaust on the inside of the frame of a 70 series, but in this case I have the cables from the cable lockers in the way, they are big and I would hate to have to replace them, doubt I could find then and if I did I am sure the price would be crazy. So in this case I started on the inside and moved to the outside just behind the wheel well.

Cheers,

Michael

[Tapage]

from several ATX and turbo Glide kits that I'v seen here ( one and one personal instalation ) the Turbo Glide it's pretty much more basic .. but do the job ..

The AXT ( maybe the reason for the price ) come with more fancy stuff like the cross over pipe .. and in the Turbo Glide it's only a tube ..

[Dougal]

Originally Posted by tlcruiserman

It could be a T3 Garret that they are using, It would not surprise me.

It looks like a T3. The bolt on compressor cover, the bolt on oil feed and the bolt on wastegate are the big clues.

The turboglide setup is the cleanest by a long shot. BTW you can simply unhook the water lines on the AXT. I block one port and leave the other blocked but unsealed so the air can expand and contract a little.

[bagh33ra]

If I could pose a bit of a rudimentary question, what is all this about 3BII? Are there slightly different 3Bs running around?

(We now return to the educational discussion already in progress).

[79fj40moneypit]

Great write up! Thanks

[cruiser_guy]

Originally Posted by bagh33ra

If I could pose a bit of a rudimentary question, what is all this about 3BII? Are there slightly different 3Bs running around?

(We now return to the educational discussion already in progress).

Yes there are. In Canada they only imported the 3B but in '88 Toyota came out with a slightly modified 3B, what we call the 3BII. I believe it is not sleeved either.

[tlcruiserman]

Originally Posted by Tapage

from several ATX and turbo Glide kits that I'v seen here ( one and one personal instalation ) the Turbo Glide it's pretty much more basic .. but do the job ..

The AXT ( maybe the reason for the price ) come with more fancy stuff like the cross over pipe .. and in the Turbo Glide it's only a tube ..

I would say you are correct about the cross over pipe from turbo to intake but turbo-glide also gives you a steel tube and fittings from the aircleaner to the turbo, AXT just gives you hose. We some of the other Turbo-glide kits the crossover pipe are cast and get a lot more ellaborate, yet price is usually around the same. I would like to think their is a good reason for the price difference but I am still trying to find it

[tlcruiserman]

Originally Posted by Dougal

It looks like a T3. The bolt on compressor cover, the bolt on oil feed and the bolt on wastegate are the big clues.

The turboglide setup is the cleanest by a long shot. BTW you can simply unhook the water lines on the AXT. I block one port and leave the other blocked but unsealed so the air can expand and contract a little.

I originally contacted AXT about blocking off the Water ports and they told me it would ruin the turbo and certainly void the warrantee. They really did not want me to do that and because it was designed to use the water they were really concern about it, so I left them the way they are. Obviously I have not purchased an AXT is the last 5 years.

I will have to say that one of the quickest 70 series I have ever driven (stock with just a turbo added) is my 86' BJ70 and it has an AXT on it. I think Wayne and Brett would agree for some reason that BJ70 has some power behind it.

Cheers,

Michael

[tlcruiserman]

Originally Posted by bagh33ra

If I could pose a bit of a rudimentary question, what is all this about 3BII? Are there slightly different 3Bs running around?

(We now return to the educational discussion already in progress).

Yes, I have a very rare 1989 BJ70 Ragtop from Japan (JDM) and it happens to have this 3BII engine, first you notice it has a rotory pump, which changes up the thottle linkage, even though it still has a butterfly in the intake (very weird), and it also has a different bolt pattern on the exhaust manifold so if you want to bolt up a 13B-T manifold or 3B you can forget about it. Unless you make an adapter plate which Wayne Smith build, and I must say Wayne that is one elaborate hunk of steel. I was a little worried about taking it off, but it came off without to much hassle. Then as I found out earlier this week the 3BII also has a roller cam which explains why I have no access pannel to the lifter (which was also baffling me when I put the new turbo on it.

Think of the 3BII as typical Toyota upgrades, the best and last of the 3B (I only say best because Toyota usually only changes stuff on the engine to fix or improve on it). After the 3BII I am sure most of those changes were in the 14B and 15B engines.

The only odd engine in that line is the 13B-T, Ok most of you know by now I am not a fan because of my own issues I have had with one

Cheers,

Michael

[cruiser_guy]

Originally Posted by tlcruiserman

Yes, I have a very rare 1989 BJ70 Ragtop from Japan (JDM) and it happens to have this 3BII engine, first you notice it has a rotory pump, which changes up the thottle linkage, even though it still has a butterfly in the intake (very weird), and it also has a different bolt pattern on the exhaust manifold so if you want to bolt up a 13B-T manifold or 3B you can forget about it.

The presence of a rotary injection pump doesn't automatically mean it's a 3BII though. I have a 3B with the rotary pump that's going into the FJ45LV and it took a 13B-T manifold just fine. My engine is a Japanese takeout from a Dyna I think.

You wouldn't have a spare throttle linkage for the rotary pump though would you?

[crushers]

it is a 3B II, there is a lot of differences between the 3B and the next generation besides the rotory pump...

[lynchmob]

Originally Posted by tlcruiserman

and it also has a different bolt pattern on the exhaust manifold so if you want to bolt up a 13B-T manifold or 3B you can forget about it. Unless you make an adapter plate which Wayne Smith build, and I must say Wayne that is one ela