CT26 + B16a = ?
 

anyone done this, i hear they are ok for some good numbers what sort of spool up time and rpm would i be looking to get

Re: CT26 + B16a = ?
 

my buddy did a HMT kit on his celica with a CT-26. Nice turbo and spooled good but it eventually died cause it had a lot of miles on it (plus i think he over-boosted it). He was runnin 13 psi daily out of it and the celica is a 2.2L. Although the B16 is only a 1.6, given that it revs to 8k i would think a ct26 would be pretty good. Remember they used to come on old supras so i'm guessing they have some potential. Spool time should be reasonably quick as they're not that big.

Re: CT26 + B16a = ?
 

ct26's are teh pimpness good for alittle over 300

Re: CT26 + B16a = ?
 

is it the one from the celica or supra?

Re: CT26 + B16a = ?
 

ct26 is like saying you have a t3 turbo, theres different types arent there depending if it came off a freakin truck or a supra or a celica or whatever...

Re: CT26 + B16a = ?
 

haha you didnt help at all
just because it did good on one car doesnt mean that it will do good on another.

Re: CT26 + B16a = ?
 

hte twin scroll ones off mr2's are usualy ct20b's the ct26 off of a celica all trac is alittle smaller. i have a 2 supra ct26's sitting here, one ready to go in and one ready to be rebuilt 8) going to run them on a 2.0 toyota 3sge motor with 9.1:1 compression. toyota never relased a map for the ct26 so, thats kinda shitty.

Re: CT26 + B16a = ?
 

[quote=rawr ]
hte twin scroll ones off mr2's are usualy ct20b's the ct26 off of a celica all trac is alittle smaller. i have a 2 supra ct26's sitting here, one ready to go in and one ready to be rebuilt 8) going to run them on a 2.0 toyota 3sge motor with 9.1:1 compression. toyota never relased a map for the ct26 so, thats kinda shitty.
[/quote

The CT20B only came on the "JDM" versions of the Alltrac/MR2. The CT26 twin scroll came on the 90-93 Alltrac and MK2 MR2, while the CT26 Single scroll came on the supra and 87-89 Alltrac.

For the price they go for, I would just sell it and buy a larger turbo.

Re: CT26 + B16a = ?
 

i thought, after looking around, that they only came on the supra and the celica, and, that they were the same. Seeing as there are no available compressor maps its difficult to figure what they are going to be like, so I dont really agree with your post as T3's come in all shapes and sizes and the CT26 comes in 1, unless its hybrid, which this is not. Unless of course you know something that you arent letting on.

Re: CT26 + B16a = ?
 

i got both of mine for about 100 shipped off ebay.. but he is going to have problems finding manifolds with flanges for a ct26. I forgot the ct20b is the one with the ceramic compressor fins and all of that jazz. i have the single entry with the single entry all trac manifold

Re: CT26 + B16a = ?
 

im not comparing the turbo to a T3 im saying you cant just call it a ct26. there are different types just lke there are different types of t3's.

Re: CT26 + B16a = ?
 

im not saying you are comparing it to a t3. I'm asking how many types of CT26 are there, as far as i can find there is only one type, which in my opinion allows me to call it a CT26

Re: CT26 + B16a = ?
 

ct26's are pretty nice. I'm not a fan of the twin scrolls b/c they become so restrictive so much faster than the CT26a's off the 7m-gte supras, but they are still good turbos.


3s-gte MR2 stock dyno (Check the richness)
Attachment 36225

5s-fte MR2 (3s-gte manifold & CT26, stock psi, weaker 5s-fe 5 speed transmission, running quite lean)
Attachment 36226

5s-fte Camry (3s-gte manifold & CT26, 10psi, A140-E 4 speed A/T, running quite lean)
Attachment 36227

You can see the twin-scrolls boost quickly on Toyota engines. But... Keep in mind most stock Toyota i4's make gobs more low end power than the equivilant Honda i4 will. So that probably will not remain as true on a Honda i4. I think it's a good choice if you want to be a bit different. Since they have the weird flange, once youg et one, you're kinda stuck with it.


The good news is it's common to upgrade the compressor to a 40, 50, 57, or 60mm T04E wheel, and clip the exhaust turbine a bit. On the Toyota's this means boost about 4000rpm, and a good power upgrade.


3s-gte MR2 (EMS management E-153 + LSD, full exhaust, intake etc... I forget the turbo, 57, or 60 T04e & some amount of turbine clipping)
Attachment 36228

Re: CT26 + B16a = ?
 

^ is right. I've never seen, or heard of anyone with maps for Toyota hardware.

The msot I can tell you is the CT26a off the 7m-gte:


Designation: Toyota CT-26
Source of Turbo: JDM 7M-GTE
Rated Flow Capacity: 437 cfm (33 lb/min)
Compressor A/R Ratio: 0.70 a/r
Exhaust A/R Ratio: 0.50 a/r
Compressor Trim: 40- trim
Bearing Type: Full-Floating Bearing
Optimum Boost Level: 8-10 psi
Max Recommended Boost: 18 psi
Water Cooled: Yes
Estimated HP (7M-GTE): 300-320 HP @ 12-14 psi

Re: CT26 + B16a = ?
 

wat do u mean guys by single and twin scroll??

Re: CT26 + B16a = ?
 

Sometimes it's called a split tang. When you look at the exhaust housing inlet (where it attached to the manifold), it is divided and basically looks like two holes instead of one large one.

Re: CT26 + B16a = ?
 

i know that the jdm ct26's on the mr2 had the ceramic wheel on it. also the ct26s came in the mr2s just on the gen 2 motors tho (making 225 hp), but the gen 3 had the ct20b (245hp). i think the ct20b came with a ceramic wheel. i have an mr2, from my experience the ct26 starts loosing boost around 6k, but the ct20b boost all the way to redline. hope this helps, i don't know if its different from other cars.