Well I have a spare turbo from an 87 t2 which will work on my 87 t2(go figure). Anyways I have started taking my car apart as I am porting the tb removing the a/c and air pump(custom exhaust no need), adding the dual alt pulley and removing turbo to port the exhaust manifold and remove twin scrool. The other turbo Im going to install after building. Now my question is who has built a hybrid turbo and what components did they use. Im looking to make as much power as possible and I dont care too much if it adds a little lag. Is there a compressor housing and wheel combo we can use with our exhaust housing to make it more like a t04, 60-1 or T series turbo?? I want to make the wheels and compressor as big as possible(within reason) mostly like a 60-1 if possible. I have a company near me TEC who are known for rebuiding and building hybrids and they would be doing the machine work and such. Also a couple other quick questions. I am removing the entire a/c system and air pump setup is there anything i will need to block off?? I noticed the air pump pumps into something bolted to the LIM should I block that off or what?? I noticed the a/c lines head inside the car, can I remove everything under the dash too?? Will I have to block off something there(coolant line, vac line)??? thanks everyone

 

Geez does nobody know..

 

try in the single turbo forum. They'll be really helpful in there.

 

Is this for a street car or race car? On the street, high average power is far more useful than high peak power. Something to keep in mind.

That thing on the LIM is the air control valve, and it's useless without the air pump so you might as well remove it. Make or buy a block off plate to bolt in its place, and cap the disconnected vac lines. You'll need to tee the MAP sensor line into the BOV line, as it's fed from the ACV.

I certainly wouldn't remove "everything" under the dash... You can remove the evaporator core if you want to save a couple of pounds and get a little more ventilation airflow. You can remove the core from it's box and reinstall the box, or make a duct to reconnect the fan and heater sections. There's even an OEM duct and pipe blanking plugs you can get cheap from Mazda. Download the HVAC chapter of the S5 FSM if you need pics (S4 FSM has none).

 

ok thanks man. Thats what I was looking for. I wouldnt mind removing the core out of its box and then just putting that back in for the ducts to still work. I just want to move as much of this stuff out *** possible. And sounds like a plan for eliminating the air pump. Ill get a block off plate and run a new line to the bov. On last thing where is the map line???

 

hey man, you interested in getting rid of your turbo airpump, bracket and hose to the ACV?
Private Message me if you are

 

heres some stuff from a txt file i put together on hybrids

http://www.teamfc3s.org/forum/showth...5&pagenumber=1
hybrid turbo thread

Turbonetics Compressor Wheel & Housing Site
http://64.225.76.178/catalog/comp_wheels.html


Wastegate Porting
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/s5-turbo-wastegate-porting-various-pictures-308384/

Machining Backplate for flapper clearance
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/turbo-porting-stage-2-a-361528/

"S5 T04B V trim hybrid turbo
turbine wheel clipped at 13 degrees
made 277whp at 9psi with stock intercooler
turbo showed little to no effect on spool time
with the turbine wheel clipped, and to my understanding
there is less back pressure now." - Cornfed (TeamFC3S)


"Up to an H-trim, the stock compressor and backplate can just be milled
If going with a 60-1, the backplate and comp housing has to be replaced
Milling the stock HT-18 comp housing to fit the 60-1 wheel will cause holes."
RETed



BNR Stage 1
T04B Compressor Wheel
Machined Stock Housing
300-310rwhp at or below 15psi
Peak Boost 3800rpm

BNR Stage 2
T04B Compressor Wheel
T04B Housing
332 RWHP at 14 psi of boost
12.3@114
Peak Boost 3800rpm

BNR Stage 3
60-1 Compressor
To4b Housing
Peak Boost 4000rpm
340-350rwhp

BNR Stage 4
60-1 Compressor Wheel
T04b Housing
69 trim or P trim T04 Turbine wheel
350-370rwhp
Peak Boost 4500rpm

 

I think you misunderstood me. The BOV is fed from a nipple on the UIM. The MAP sensor is fed from a line on the ACV. When you remove the ACV you must feed the MAP sensor from somewhere else (it's an important sensor). The easiest way to do this is to tee its line into the BOV line. Also, you must make sure you retain the small restrictor pill inside the end of the MAP sensor line.

The MAP sensor is located on the front of the strut tower behind the airbox. Follow it's vac line to the manifold.

 

Ok I got cha. I know that the map is a very important sensor. its the one I hooked my fcd up too. I just did not get what your saying but I see now. So I just keep the restrictor in the map like and tee into the vacuum line coming off the bov. Got it. As for that turbo info thanks node and I did pm you. Ill be getting rid of the whole setup. I have no problem replacing the compressor housing with a to4 one if it will fit. I think I will try and duplicate the stage 3 setup as the stage four is too much lag. 4k isnt too bad though especially with a light weight flywheel it will hit 4 k pretty quick. Im going to talk to my turbo shop and see what they say. A hybrid for less than 500 is what Im shooting for since i already have a good HT-18 with minimal shaft play.