well I kow this is a swap, but i thought I would share the single turbo set up
its a 13bt with a street port/ small bridge....1680 sec, 720 prim
Halteck ek6
rx7 na box
garret to4e
hardened apex seals
high comp s5 na rotors...so low boost...
home made rails
home made subframe
home made turbo mani
so much more





hope it works as i want it to....looking for at least 300hp to 375hp that would be great...plan on just 15 psi if i can tune it to avoid detonation

 

Are you controlling boost of the front rotor only on a twin scroll manifold?

 

What year of Miata? And pics of the rest of the vehicle? Thanks, CJ

 

it is a 1992 miata....
i know the mani doesnt show it, The wastegate issue is my worst point in the build.....I couldnt get room to mount it anywhere else....what I had to revert to was open up both runners at the T4 flange so they share that area....so even though the outlet is only from the number one header pipe the exaust flow will be from both 1 and 2....kind of like a log style mani is...I am not sure of boost control accuracy yet..bubt hopefully it willl be in the right place to get rid of both 1 and 2 gasses when the wastegate opens......

this was my biggest hurdle and only can hope it works...
believe me when i say ...I had no space...lol right now the wastegate sits about 1/16 off the crossmember / subframe

 

great project...any pics of the subframe?

 

yea i can get pics, but i have to warn you they are graphic...lol
low budget means horrible welding ,, Since i cant weld very good,, its sttrong just mig welded and with a small welder too...will try to get some....

if you look at first picture you can see the side of it a bit...

 

I'd love to do this a 99+ Miata.

 

that was my first choice, but money was issue...lol got this one cheap, and it was from cali so nno rust...thats good here in ohio

I cant wait to get it running I just need a little more cash to finish it....

 

I would love to see some pics of the subframe.

 

will try to get pics of subframe, if you look at first pic you can some of it with turbo off

 

very nice build, soon you will be helping me with gt45r fc? ha

 

yep...then i can kick your butt..in my gay miata....lol

 

1800lb with 400 hp

wow factor from driving will be incredible

 

hey kwerks is that a skip barber car un your post? I it looks like one from the school
I use to work in the pro series they ran a long time ago