I wanna get a list started for turbos that will flow enough for a 12a. Most of us already know the turbo rotary ones will work. What other factory turbos would work well?

My thunderchicken turbo seems to be leaking like crazy so I have decided to hunt down another one. I would just like for a list to be started for a reference.


I think a grand national turbo might be enough but they are pretty expensive even used? Anyone else?

Please feel free to leave your comments on the turbos listed, thanks.

 

as well as flow isnt the a/r ratio quight important?
i use a T3 AI resurch (elford turbo)

Ollie

 

look in the older mitubishis they are swapable with tll mazda sorda stole alot of stuff from mitubishi.

 

Very few, if any, stock turbos will work with a rotary, The 2nd gen guys have been looking for years. The stock 2nd gen and hybridized ones are the most common choices, then the aftermarket, starting with the T04's and up. Most of the oem turbos are so small, it might be better to run twins, one for each rotor, and a butt load of plumbing.

I have read there are a few looking at some of the diesel turbos, but they are usually doing a bit of porting.

 

[QUOTE=saltyslug]I wanna get a list started for turbos that will flow enough for a 12a. Most of us already know the turbo rotary ones will work. What other factory turbos would work well? QUOTE]

I find the stock TO3 is adequate for the 12AT for up to 220rwhp on two injectors.

If I was going for more power, my choice would be a T04 with a H or 60:1 compressor with a P-trim turbine in a 0.88 housing. Then I would go 4 injectors, or in the case of a carb set-up move up to a Weber.

 

cool, but most of us will be runnin carbs.

I was wondering about diesel pickup trucks also. I think they run really high boost on them though so you might have to add a external wastegate=$$$$

alot of us are po folk, that why alot of people running first gen, lol. I am cheaper I am running a bug.

please leave any info ya all.

 

ummm I kinda like the hair dryer approach...works well...and is fairly cheap unless you get into those high flow stainless steel ones...they run like $120...lol

 

CT26 from the MKIII toyota supra would flow great for these cars, i think stock the trim is about 52-1 making it one of the largest stock (single) turbo cars produced. with the exhaust gasses pushed by a rotary it would flow pretty damn well and not be that laggy.

you can pick them up for under $200 too, since most people upgrade and just sell these off.

 

The size of the turbo is not related to the carb/efi set-up. A TO3 level will work with a preped Nikki, but anything bigger such as TO4 then as I said you need a higher performing carb such as a Weber. Way back in 79 my set up was a TO4 to a Weber 45DCOE, while my Brother in 81 had an Elford with a TO4B and SU carb on his RX-7. All the other UK turbo conversions such as Motorspeed and TWR also went Weber. Perhaps in those days we did not have the Nilkki experts like Carl and Sterling around. Thus, if on a tight budget get one that the Nikki can handle.

 

While its 20 years since I worked on an Elford, my memory is that it was a Garrett AiResearch TO4B. While that was an early model, which had problems due to the impact of high exhaust temperatures, I was not aware they latter dropped down to the TO3 when the manifolds were redesigned.

 

you are 100% correct.. the supra single turbo units are the biggest stock turbo you can get, and work decent on a stock rotary.. cheap too
deisel turbos are wayyyyy too big for a stock rotary, and any 4 cyl. turbo is just too small.. its cheese time

 

I had a ford thunderbird super coupe turbo on my first gen.. and i still have the whole set up.. I took it off before I sold the car... Put it this way it was faster than my turbo II... If you have any more question about my set up just PM me....

Darrick

 

is there 2 ct26 turbos? I know one comes on the supra but is there a smaller one on the mr2 that we wouldn't want to use?

what flange does the ct26 use and what does the wastegate open at?

 

im not sure but im sure you need the supra turbo..
i do know the 12A turbo ht-18 is different than the 13B turbo ht-18 units..

i would like to know what a salty slug tastes like though..... maybe with some cheese they would be tasty

 

The mid '80's to early '90's dodge TII Garret turbos should be fine for a modest boost street system. You can plumb manifold pressure direct to the wastegate actuator to limit boost to about 7 lbs or if you intercool run a "Gus" valve and get about 15 lbs. +
It might be possible to adapt the entire ecu/EFI system as well. Hmm, this warrants more investigation.

 

is that in the shelby daytona?

 

MR2s also came with CT26's, however they are different in trim, the supra's ct26 would be your best bet, cheap **** from a wrecker. g'luck with those downpipe bolts though!

 

Any of the intercooled Dodge or Shelby-Dodge cars 1985 up except the TIII and VNT (TIV) The '85-'88 will have a 2.25" outlet while the ''89 will have 2.5" Any of them can be retrofitted with a 3" outlet from Turbos unleashed.