I've been searching for days now.... anyone know how to make the sequential turbos on a 13b-re run non-sequentially??? I can't find any info....also if anyone has completed this swap into a s5 vert please post pics and tips if you can...it seems that not too many attempted this swap...I just received a 13b-re from jhot boy is it clean...looks brand new ...anyone have a detailed writeup on the wiring of the s5 TII harness and ecu for this engine??? i'm saving for a haltech...

 

same way as is done on a FD,just look for FD parallel turbo conversion.To make it easy just use your S5 harness get a s5 t2 flow meter,map sensor and ecu and some kind of fuel controller for the cosmo secondaries injectors and it should run.
But you should get a EMS in order to get it to run nicer and get more power.

 

Convert it the same way as you would the FD twins. Very easy actaully. FWIW though you might get better performance out of an S5 turbo though.

Why you would need a fuel controller for the secondaries is beyond me.

What exhaust ports are in there?

 

I did that, just like TitaniumTT said.

Cut the main TC control gait, and the pre control gait out, and plug the whole thats left by welding in a bolt or other means.

The cosmo twins run NS COULD NOT hold more than 9PSI to redline, with the wastgate line REMOVED!!!

They made about 260 WHP and 250 WTQ at 6K rpm at 4500 ft above sea level on a 90+ deg day with no correction factor on a dynojet.

 

yes cosmo twins are smaller than FD twins. HT10 on Cosmo vs HT12 on the FD, vs HT 18 for the stock FC turbo (but there's only 1 turbo on the FC). FD twins can do about 350 to the wheels, sometimes more and sometimes less