CTC 67 / SP67 / PTE 67 etc.

A lot of Supra owners are getting very good results from this turbo whether it's drag racing or road racing, they seem to love it. Anyone know of RB26detts running this turbo? Would this be a good choice for a GTR (not a DD), something that would see the street maybe twice a week. Here are a few dynosheets from the Supras, I know more lag would be a given...

http://moreboost.org/graphics/turbos/CTC67_VG3.jpg

http://moreboost.org/graphics/turbos/CTC67H_AB2.jpg

http://moreboost.org/graphics/turbos/CTC67H_AB3.jpg

you would get better out of a T78 for sure, but like that turbo you will have heaps of lag and a huge burst of power. The RB26 loves twin setups. Twin GT3037's will give you the same if not more and come on a bit earlier with a much more progressive power curve instead of a huge burst. This makes the car more drivable also.

The twin GT-RS kit is attractive, but nobody seems to have any solid numbers on it yet. I'd love a set of GT3037's, but they are way out of my price range, one 3037 is the price of 2 CTC67's.

From what I've seen the 67 spools faster on Supras than a T78 does, which would lead me to believe the 67 would also spool faster then a T78 on a Rb26. They are about the same price too, depending on who you buy it from and if it's P trim or GTQ trim it's between $1,085 & $1,300 for the turbo, a full kit would be about $3,700.

They are interesting turbos, yet I can't seem to find much on them. Do you have any links to information on them and who makes them? I'm not really keen for a single turbo conversion as i am looking at GT2530's for my application. 600hp is more than enough for a daily street car.

I'll throw my :2cents:

I cannot stand the dynos that use mph as a standard. The other two dyno charts are very typical of what dyno queens are all about. Unuseful power, that third dyno run it absolutely horrific.

What it comes down to, is what are your intentions for the car?

A T78 is too laggy.

If you want very streetable power, you cannot go wrong with a set of 2530. If you want more power go with the 2540s, but you will also have to a lot of engine work to get the whole benifit of the turbos.

2530 will put out, like Razor mentioned 600hp to the ground, that is more than enough to take most any car out there.

What do you want of your car?

The car wont be a daily driver, it'll see the street maybe 2 or 3 times a week, lag wouldnt bother me that much, boost is just a downshift away.

I'd really consider the GT-RS kit over the 2530s, but I cant find any dynosheets on them or anyone that has actually used them.

Im shooting for atleast 600 at the rear wheels.



Razor, here's a pretty good site with a bunch of info on just about every single turbo you can think of, with dynosheets too. http://moreboost.org/turbo_detail.htm

Cool site,

Now what you need to do is figure out what your engines main purpose in life will be. Then look at the power bands of the dynos that are there, and try to mirror what you want with the dyno sheets that look the best to you.

Just because you say you want 600hp, really does not mean much, because there are a number of way to achieve those power numbers.

What car do have, by the way? And where are you located?

Cool site,



Just because you say you want 600hp, really does not mean much, because there are a number of way to achieve those power numbers.


That's true, however I dont think the 2530s or 2540s can reach 600rwhp without nitrous, or can they? I've heard a lot of negative things about the 2540s too.


I dont have the car yet, but I'm buying/waiting for the 1990 R32 @ Rbmotoring.com. I have the chance to get a CTC 67 for pretty cheap though, which sparked this question.


Im in NY.

The car wont be a daily driver, it'll see the street maybe 2 or 3 times a week, lag wouldnt bother me that much, boost is just a downshift away.

I'd really consider the GT-RS kit over the 2530s, but I cant find any dynosheets on them or anyone that has actually used them.

Im shooting for atleast 600 at the rear wheels.



Razor, here's a pretty good site with a bunch of info on just about every single turbo you can think of, with dynosheets too. http://moreboost.org/turbo_detail.htm

If it's seeing the street a couple times a week, like my momma always said go big or go home. RB26's like to spin as they have a fairly small dispalcement for being a 6-banger, so I say throw some big momma like a PT76 Q-trim on there, and make heaps of power. Give it some more compression and you could get a 76 rolling by 5000 RPM's.

boosted331,

PT76-Q, don't you think its better suited for a V8 :grinyes: I just bought one, but I am installing it on my 393. I would not consider installing it on a RB26, that is just crazy talk. Or should I say 1/4 strictly talk. The power band would not be that good either.

Plus you can achieve 600hp with 2540s, you just have to know what you are doin.

GT-RS would be the way to, since it is the newer design. For all around performance, but you will still have to a lot of other engine work to get the whole benefit of the turbos.

GT-RS would be the way to, since it is the newer design. For all around performance, but you will still have to a lot of other engine work to get the whole benefit of the turbos.

I asked about those on the UK board, but they all seem to say the GT-RS kit isnt suited for anything other then 2.8L. I did get some info from one member there that used them, apparently they spool about 300-500rpm later then 2530's did on his engine, but this is on a OS giken 3.0L. They are rated at 400hp a piece, and HKS seems to underrate their turbos, so I'd assume 600rwhp wouldnt be out of the question with the right supporting mods & tuning.

not sure what 2530's will actually flow if properly tuned with the right gear supporting them. I do know of one GTR here in New Zealand making 388kw at all four wheels or 516hp with them. I really don't know much about the car or what has been done to it. There is another who just binned his GroupA N1 turbos in favour of a T78 with the goal of close to 750hp overall for drags. With the smaller twin setup he was making just on 510hp at the wheels and he is the mechanic, and it was properly tuned.

I see this big band wagon to jump on the 67 train, but why? These turbos are just a T04R compressor with an Q-trim or P-trim turbine. The standard T04R compressor wheel is extrmely efficient. One of the reasons why it does work well is it doesn't surge at all. It also has a reasonably sized turbine wheel. The only problem is that the T04R comes with a huge .96 A/R housing. If you check any of the dynos or running the .81 A/R housing, the T04R actually spools as fast as these hybrid 67s with even smaller A/Rs due to its more efficient turbine wheel.

What's worse, is that this turbo is so old news that it is practically obsolete. A new turbo is taking over: the GT74BB. This uses a much larger compressor wheel from a new GT42 GT-series turbo with a Q-series turbine wheel. The lowest efficiency point on the entire compressor map is 72%. The result is a turbo that spools just as fast as the 66 and 67 turbos, but leaves them in the dust above 600 rwhp. This turbo can put out over 900 rwhp with a small set of cams. If it had a more efficient turbine wheel, it would be even better.