CT26 turbo (1 Viewer)
- Thread starter hdj81v
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
They are rotated differently, but the housings are the same. Comp wheel may be 1mm smaller, or the same, depending on model
Tapage
Club 4X4 Panamá
short answer: not bolt on but yes .. 
You wont be able to use the dump pipe, Im certain of that. You can buy CT26 exhaust flanges of eBay, best to use that.
I dont see too many 13BT CT26's, they are quite rare and if any turbo was not the right spec on a Toyota Diesel it is the CT26 on the 13BT. Of course, it is much better on the 1HDT. On the exhaust housing it probably has 58010 cast into to turbine flange where it bolts to the exh manifold; that is the same as the 11HDT. On the compressor side it will have an inducer between 41.5 and 43mm. 1HDT are 43mm. I *think* the 13BT is 41.5mm like the early (Gen1) 3SGTE motors.
Given you are obviously on a budget and you wont push it past 12psi on a 1HDT (assumption and advice all in one), you wont notice the difference.
You will need to use your 1HDT wastegate actuator in order to actually get the wastegate to worik - after you rotate the 13BT housing, it wont reach the wastegate lever.
Hope that helps. Cheers
I dont see too many 13BT CT26's, they are quite rare and if any turbo was not the right spec on a Toyota Diesel it is the CT26 on the 13BT. Of course, it is much better on the 1HDT. On the exhaust housing it probably has 58010 cast into to turbine flange where it bolts to the exh manifold; that is the same as the 11HDT. On the compressor side it will have an inducer between 41.5 and 43mm. 1HDT are 43mm. I *think* the 13BT is 41.5mm like the early (Gen1) 3SGTE motors.
Given you are obviously on a budget and you wont push it past 12psi on a 1HDT (assumption and advice all in one), you wont notice the difference.
You will need to use your 1HDT wastegate actuator in order to actually get the wastegate to worik - after you rotate the 13BT housing, it wont reach the wastegate lever.
Hope that helps. Cheers
gbentink said:
I have a 13bt with the ct26. What would you recommend as an upgrade?
won of graemes CT26's thats what I have on mine, its far better than stock.
- Thread starter
- #8
gbentink said:
So it is not advisable to use a turbo from 13bt to a 1hdt? Currently i have a t3 to4e turbo on my 80 and it seems to be laggy, 10psi on 2000 rpm but boosts upto 20psi when pushed hard past 2k rpm, im planning to switch back to the stock ct 26 but because of my exhaust housing being honed to accomodate the bigger turbine, i wont be able to use it and replace it with a stock housing.
If you still have the CT26 that came off the 1HDT engine initially, and it is in good working order, you can simply use the exhaust housing from the 13BT version - should be identical in every way. Just check the number on the exhaust flange. Should be 58010. If that is the case, happy days, low cost for you and right back on the road.
Depending on your budget, perhaps your best option is to simply fit a comp wheel from a 7MGTE and machine the comp cover to fit. You will be safe at 18-20psi (with a 360 deg thrust bearing, but even the stock 270 thrust bearing is OK for a reasonable amount of time, maybe as much as 100kkm). You wont get the bottom end that I offer, but for a low cost excercise and near stock bottom end response, it is a worthwhile upgrade in my opinion and far superior to what you have right now. 20psi at 2000rpm wont be a problem once tuned up - I assume you have an intercooler?
AdamB on Mud has used stock, 7MGTE mod and my earliest version of the "Grunter" spec, he is a good person to ask and has posted probably the most detailed response I have seen on back to back comparisons, effects at certain rpms, etc etc. He has also fitted intercooling etc to his and water/meth.
The T3/T4 will never do what you are trying to achieve btw - much too large, unless racing, and even then there are far superior options....
Depending on your budget, perhaps your best option is to simply fit a comp wheel from a 7MGTE and machine the comp cover to fit. You will be safe at 18-20psi (with a 360 deg thrust bearing, but even the stock 270 thrust bearing is OK for a reasonable amount of time, maybe as much as 100kkm). You wont get the bottom end that I offer, but for a low cost excercise and near stock bottom end response, it is a worthwhile upgrade in my opinion and far superior to what you have right now. 20psi at 2000rpm wont be a problem once tuned up - I assume you have an intercooler?
AdamB on Mud has used stock, 7MGTE mod and my earliest version of the "Grunter" spec, he is a good person to ask and has posted probably the most detailed response I have seen on back to back comparisons, effects at certain rpms, etc etc. He has also fitted intercooling etc to his and water/meth.
The T3/T4 will never do what you are trying to achieve btw - much too large, unless racing, and even then there are far superior options....
Last edited:
- Thread starter
- #12
The number on the exhaust flange that came off from the 13bt is 42010
Just a note here about exhaust housings, taken from the parts I used to make the hybrid I ran a couple of years ago. I bought a used CT26 from a 7M-GTE, split it, had it rebuilt with a 360 degree thrust bearing, then popped the exhaust housing off my stock 1HD-T turbo and put it on the rebuilt 7M unit.
1HD-T = 58020
7M-GTE = 42010
There is a HUGE difference in size.
1HD-T = 58020
7M-GTE = 42010
There is a HUGE difference in size.
Tapage
Club 4X4 Panamá
I need to take pics of my supra housing .. but mine isn't that big compared to my 1HD-T housing ( turbine side ) need to check numbers tho ..
Yes. They will go together with no modifications because the turbine wheel is the same. I removed the pins so I could point the compressor up the way I wanted with my intercooler. Make sure the CHRA allows the oil to drain straight down (which is the only way you're going to get the factory oil line hooked up anyway). I'm not sure if it is already set up the way you want it but since I was sending the 7M comp side for a rebuild job I figured what the hell, might as well make it fully clockable....
mudgudgeon
Resident galah
There is more than one ct26 variant for Supras, the 7MGTE version had the largest compressor wheel and housing.
Tapage
Club 4X4 Panamá
yap I Know .. but I was talking about pure hot side ..
If the turbo that "came from a 13bt" has 42010 on the turbine housing, then it originally came from a 7MGTE. Dont waste your time using that exhaust housing (boost at well over 2000rpm). on the other hand, the comp side, if still orignal on that turbo, may have the 45.5mm compressor wheel (inducer). In that case, find yourself a 58020 exhaust housing and you are good to go.
Are you doing this for fun and experimentation or trying to save the $? Reason I ask is that to save $, stay with the toyota stuff, dont go messing around with revised oil line kits, adaptors etc etc which add to expense; not just now but later with potential reliability issues.
Cheers
