7mgteu 267 hp engine

[El Supracabras]

So, uhhhh, you gonna tell us where the heck you picked up such a rare piece of a supra? You got some inside source or something? I'd love to get my claws on that ecu.

[mk2brooks]

Ebay...lol..

[turbonicsperformance]

ive got an A on my compressor housing also and come to think of it the engine that i took out of the car was a ge block??? i thought some idiot had just put a turbo on their 7mge and thought it would work. i guess i should have done a little more research before scrapping that block... oh well.
I thought the A was normal stamp for a st26 housing but i guess it a little different ...
gotta love finding out stuff you have is better than you thought.
I th

[El Supracabras]

Originally Posted by turbonicsperformance

ive got an A on my compressor housing also and come to think of it the engine that i took out of the car was a ge block??? i thought some idiot had just put a turbo on their 7mge and thought it would work. i guess i should have done a little more research before scrapping that block... oh well.
I thought the A was normal stamp for a st26 housing but i guess it a little different ...
gotta love finding out stuff you have is better than you thought.
I th

Don't get too excited, you probably were right. The A on the housing is normal from what I have seen. My 89 has it on the compressor too. You could measure the wheel to see if it is any bigger than a regular ct26.

[turbonicsperformance]

Originally Posted by El Supracabras

Don't get too excited, you probably were right. The A on the housing is normal from what I have seen. My 89 has it on the compressor too. You could measure the wheel to see if it is any bigger than a regular ct26.

i've been doing alot of reading up on this and the ct-26A was an option in 89 for the regular 7mgte there was 700 of them produced and 500 sold in the u.s it has a better machined compressor housing and a 2mm larger inducer 1mm larger exducer (not sure about this pic but the ct26-A has 6 dual blades and ct26 has 5 dual blades) i think they mioght have labeled the pic wrong i count % dual blades on both wheels here


and yeah i thought that also but when i was taking out the original engine that i believe to be a turbo-A engine i found a map sensor and had no idea why there wasn't a plug for it i kept searching the diagrams for one before deciding someone just used it as an expensive vac plug

[El Supracabras]

Very nice job! Perhaps we can put together a thread with information on ct-26 identification and differences? I wonder what the gain from the ct26A is over a normal ct26.
Do you still have the computer to that engine?

[turbonicsperformance]

Originally Posted by El Supracabras

Very nice job! Perhaps we can put together a thread with information on ct-26 identification and differences? I wonder what the gain from the ct26A is over a normal ct26.
Do you still have the computer to that engine?

the engine i pulled out of the car was running on a regular 7mgte ecm i have come to the conclusion that is probably the reason it blew up. the ct26-A on the 7mgte-u only made an extra 12hp or so at the same boost level but from what i understand the turbo is capable of flowing alot more exhuast than the ct26 allowing around 17-18psi before i becomes completely useless unlike the ct26 which becomes basically useless at around 14-15psi
I havent been able to find any compressor maps but i'm gonna do some dyno pulls soon and ill do a baseline pull with just a fmic and 3 inch turbo back as far as engine mods. then i'll up the boost to around 10-12psi and get some realistic numbers.

off topic question though, if my fuel pump is wired straight to my ignition will the ecm still allow fuel cut through injector signal or will it just go lean?

[MA70-3.0GT]

Oh good hell.... I just learned that i potentially blew a CT26 A then...

Rest is standard GTE fare tho afaik, has afm based system so guess someone just got hold of an A spec turbo... good job I didn't try a rebuild kit then

Anyone got impeller/turbine dimensions to hand?

EDIT-: further to this, having done some trawling the stock CT26 (which does have an A on the comp housing anyway) appears to have fairly even sized turbine/compressor housings externally, anyone confirm? Mine appears to be rather bigger on the compressor side...