CT26 out of a 1HDT into a NA 13B (1 Viewer)

[MauricioR]

Hi guys, I've been thinking on adding a turbo onto my NA 13B.

I got an OEM turbo from my 1HDT (CT26). The idea is to fabricate the turbo manifold from zero but I am uncertain if this turbo is a good fit.
What do you guys think?
Another option is a turbo out of a ZD30 (which I have to purchase) that I think will spool faster???

 

[Eurasiaoverland]

The 13B-T came with a CT26, as did the 14B-T and 15B-T (but not 15B-FT). So yes, they are matched.

 

[lacalvette]

Hi guys, I've been thinking on adding a turbo onto my NA 13B.
View attachment 3762493

I got an OEM turbo from my 1HDT (CT26). The idea is to fabricate the turbo manifold from zero but I am uncertain if this turbo is a good fit.
What do you guys think?
Another option is a turbo out of a ZD30 (which I have to purchase) that I think will spool faster???

Nice engine bay! What is the insulation on the fitewall?

 

[MauricioR]

The 13B-T came with a CT26, as did the 14B-T and 15B-T (but not 15B-FT). So yes, they are matched.

Alright. I think there are several versions of the CT26 so I was uncertain if using one out of a 1HDT would work.

Nice engine bay! What is the insulation on the fitewall?

It it just insulation used for interior roofs on houses. Works pretty well to be honest, keeps the firewall cold and isolate the sound of the motor a little bit

 

[FJBen]

Alright. I think there are several versions of the CT26 so I was uncertain if using one out of a 1HDT would work.


It it just insulation used for interior roofs on houses. Works pretty well to be honest, keeps the firewall cold and isolate the sound of the motor a little bit

The ct26 will work, but it’s too big and will be laggy for a 3b. Toyota used the same ct26 on the 12ht as the 13bt…it’s too big for the 13bt…and 3b. There are better options but I suppose it’s all about budget.

 

[Dougal]

Better turbos are the Holset HE221 and MHI TD04HL-19T. The CT26 is old and slow.

 

[GTSSportCoupe]

Note that CT26s are different for various OEM applications. Like different turbine housings with different A/R. 1HDT one is probably NOT what you want for a smaller displacement engine. Find one from a 13BT if that is what you're putting it on.

But as said, you'll be much happier with a modern and proper sized turbo anyhow. I hear TD04L-13T is nice on 3B/13B. You can get them off Subaru WRX engines (those guys upgrade).

 

[FJBen]

Note that CT26s are different for various OEM applications. Like different turbine housings with different A/R. 1HDT one is probably NOT what you want for a smaller displacement engine. Find one from a 13BT if that is what you're putting it on.

But as said, you'll be much happier with a modern and proper sized turbo anyhow. I hear TD04L-13T is nice on 3B/13B. You can get them off Subaru WRX engines (those guys upgrade).

The 13bt ct26 is the same as the 12ht one, too big and slow/laggy.

The he221 on mine made a huge difference on mine.

 

[GTSSportCoupe]

The 13bt ct26 is the same as the 12ht one, too big and slow/laggy.

The he221 on mine made a huge difference on mine.

Ah, okay. So maybe the turbine housing is the same for 12ht/13bt. I'm pretty certain 1hdt turbine housing is larger though....

 

[Eurasiaoverland]

The turbine housing on a 1HD-T, (and I think 1HD-FT), 14B-T and 15B-T have '58020' cast in (interestingly, 58xxx denotes a B Engine component) which makes sense as the 14B-T was launched a year before the 1HD. The 13B-T would be -58010 and was the same, it seems as the 12H-T. I was not aware that there was a difference in the performance of the two turbochargers, but it makes sense.

 

[Dougal]

Ah, okay. So maybe the turbine housing is the same for 12ht/13bt. I'm pretty certain 1hdt turbine housing is larger though....

There are about 3 different CT26 (single entry) turbine housing sizes. But they're still housing a paddle wheel so it's only a minor difference.

 

[mudgudgeon]

There are about 3 different CT26 (single entry) turbine housing sizes. But they're still housing a paddle wheel so it's only a minor difference.

There is a twin scroll turbine housing I believe from a smaller petrol engine.

MR2??

Not sure if it is interchangeable with the 1hd-t CHRA.
Way too long since I was looking at this stuff.

The twin scroll housing was not suitable for anything I was interested in, so I didn't store the details in my brain.

Search up the Mellett turbo catalogue for detailed information.

I've linked it many times in old threads, a search should find it