Hey all,
Slowly getting things together for my turbo FB, kinda an under the wraps project I have a turbo which came with my GSL-SE and have basically had it in a box for the last 4 years. Decided not to turbo the SE, and was wondering if this turbo would work well on my 12A car. its a Turbonetics TO4B H trim with a A/R .81 for the exhaust housing. The specs on the motor are 12A with 1/2 bridgeport will be EFI also. Just wondering if I should go through the trouble of using this turbo or would I be disapointed using it.
Thanks,
Bryan

 

thats the hybrid t3/t4 turbo. the t3 for sure would be to small but since this is a hybrid i would say its ok although the turbine is t3 and t4 compressor section idk it might be still small . now a far as the performance gain is the question although its a hybrid its on the small side specially for a 1/2 bridge . but i guess until you try it we wont know. i say try it and see.

 

If it's a full blown TO4B, or even a TII hybrid, it will work fine If it has a T3 footprint, then it may be questionable. With a 1/2 bp and .81 A/R, it should spool fairly quickly.

 

Well unfortunately all I have is that on the compressor wheel the only number is 20192 which is either the TO4B in the H or super H trim. and the exhaust side only has the A/R .81 P stamped on it, I can't find any other markings on the turbo. I know it has the plumping for water and oil for cooling. How would I find out what the foot print would be? I don't think it's the T3 at all, the housing looks like a T4, the exhaust out is a circle, not the oblong 5 bolt I normally see on a T3?
it looks just like the pic for the TO4B found here:
http://www.turboneticsinc.com/pa_comphous.htm

thanks guys!
Bryan

 

humm has p stamped on it ? but its a h trim. p is usually for the trim so i dont know do you have actual pic of the unit u can post here. if its a full TO4B its fine like trochoid said if its a hybrid t3/t4 like i suspect it is i think its on the small side. but the question is what kind of power gains are you looking for ? now according to the number 20192 that should be a super h which is plenty.

 

Ok, here's the pics of the turbo.
Bryan

 

Anyone Know if this is the full TO4B or if it is a hybrid?
Thanks,
Bryan

 

Definitely not a hybrid, as the hot side is not S4 or S5 TII type.

 

well that one looks like a full blown TO4B so i would say yep thats plenty.