The ct26 is off a supra 7m. A good running supra, just guy was doing a 2jz swap. Got the turbo for nothing bc he's a nice friend. Toyota made the flanges weird, technically it's a T3 but would need to be rotated the wrong direction to fit some +T 12a headers. So I'm going the custom route.... Have a oem fmic from my 09volvo that is more than big enough. I plan to do my build in this thread as I have not turbo'd a carbureted engine before. All I'm worried about is the Nikki, do I need to turbo prep it? If so can someone point me in the right direction? I'll get a manual boost controller, boost gauge, and I have an extra air/fuel ratio gauge at the house. Custom piping probably as well and I'm looking to push 5lbs at most. Engine has 105k on it, runs Great! Occasionally stalls when not in gear but likes to idle around 6-800. Plan to attempt to fix that today and this weekend get a header quote.
Any help/suggestions appreciated!

 

Not a good idea at all.................12a turbos came factory with a bigger turbo than that.
The carb has 2 get turbo prepped.
Use a S5 turbo and a custom 12a manifold if you want 2 go the turbo route.
Get a real wideband.
3 inch exhaust
Upgraded ignition system.........
and a lot more.........do some research.

 

That's a little harsh. Clearly he's trying to make something work with hand-me-down parts and spares on the cheap. While there's nothing wrong with that, your results won't be as good as you'd probably like. Yes, you can always go the tried and true S5 turbo, maybe BNR Stage 1 or something and do all the **** that every other entry level turbo swapped FB has but I'd say do your own thing. You'll have a unique build, just not something you can reference in google like the Hitachi 12AT. Also, just because the turbo isn't as big as an S5 unit doesn't mean that it's a paperweight. Even if you net 50whp, in a FB that's a very noticeable upgrade.

As for the carb, it has to be jetted from what I've been told so it can flow more fuel.

 

from the research I have done the 7M CT-26 has a larger diameter compressor and turbine wheel, and flows more thans any of the FC Hitachi's, so Im not sure its really that bad of a idea. not to mention that most all CT-26's dont have cracked turbine housings...


I looked into using a Ct-26, as I have access to several, but decided its more economical for me to go for an aftermarket turbo, and only have to build the system once

 

Don't worry I know I need to prep the carb, sorry I didn't mention that... The air fuel ratio gauge would have told me anyway if I didn't :p
I'm just trying to do something different thats cheap. Once turbo'd, exhaust or dp I suppose is just going straight out of the hood. Only thing I really need help with is where to get the jets for my Nikki. Although I'm new to rotaries, I'm damn familiar with carbs and turbos. I like building things that are different... This ct26 (besides cheap) is in great shape and will get me to where I want until I swap the engine. Got a lsd, coils, new wheel, spare hood (to cut the hole in) and a few other goodies going on in the next week. Money isn't really the issue, don't want to be another s5 1st gen,, no offense to anyone. For anyone curious ive got a 5.9 cummins going in a 1930 ford model a rat rod that's on the back burner till I sell my 62 merc meteor. Again any help appreciated

 

That turbo is gonna choke the engine down..............single inlet hotside and way 2 small to begin with!Compressor wheel a little larger than a stock 12a turbo but again whatever you gain from that wont make up for the tiny exhaust side,i wasnt been a dick is just the facts but whatever......i dont know what i am talking about.

 

Nikkis are easy 2 turbo prep and they do a good job if done correctly.
I wasnt been a ******* 2 you i was just been honest.Do things correctly and do it just one time.
That turbo is not good for you......trust me i am no newbie 2 turbo cars no like others on this forum that give you advise and have never drive or own a turbo car.
In the end is your car and you do what you want with it i just dont like the idea of seen another rotary head headed down the wrong path and maybe blow his engine................
Good luck with the build.

 

turbine inlet looks like a fair comparison to me... how is the CT on the left gonna be a choke, when compared to a S4 HT18-S on the right? Stock vs stock, ide rock a CT over a HT-18 all day long. but I agree with stated above. Look at the ultimate goal and build for that. re-doing a setup several times over will cost more in the end than biting the bullet and spending a little more 1 time

 

I'm not sure if that was directed at me but I drive a turbo 2 with you guessed it.. A series 5 turbo setup! So yes, I know a bit about it. nobody was arguing that your method was wrong, just clearly he's doing something different. No need to get worked up

 

Yeah my bad for getting defensive,, I do appreciate the advise. I understand s5 is the safe and fun way to go but I'm looking for different off the wall things. I'm sure I'll have more stupid questions down the road like where can I pick up a Nikki turbo prep kit or do I have to buy it all separately?

 

I believe there is a lot more to it than inlet size on exhaust side of the turbo... What the actual stats like the ar of the exhaust housings. That can make a huge difference on where the engine gets choked out.. Not saying I know one turbo flows more than the other but There's more to it than just how big the hole looks

 

You are correct!I s the ar,hot side desing and turbine wheel!remember this hitachis were picked or built 2 deal with the rotary engines exhaust pulses that are different form a piston engine.Look at the horsepower rating,compressor maps,power band ect ect of on any aftermarket turbo and compare them 2 how they will do on a piston engine and on a rotary............is all different!

 

Not all bud!I am a small friendly guy!

 

Just picked up a lsd, coils, hood, and grant steering wheel for a great price. Forgot ill need oil cooler too and I guess T intake mani? Still working on researching how ima do this but in no way is it going on the back burner. Anyone have a link to turbo prepping a Nikki carb for me to read?

 

Don't worry Sh00bs, I'm planning a similar build and doing a lot of research before I even lift my hood. There's tons of guys here on the forum that have done blow thru turbo setups and would share info gladly.