So i am switching to single turbo.

I have a PowerFC, 450R Fuel Kit from Aspec, GT3574 Turbo Kit from Aspec, Large Street Port Motor, PFS Intercooler, Mazdaspeed Radiator.

I am to the point that i need to clean up my Rats Nest. I am attaching a picture of what i think will need to remain...not much lol.


I am planning to remove the part itself and then plug any vacuum lines they were attached to

This is what i am thinking to remove:

(B) Solenoid Valve (Relief 1)
(C) Solenoid Valve (Switching)
(D) EGR Control Solenoid
(E) Turbo Control Solenoid
(F) Charge Control Solenoid
(G) Double Throttle Control Solenoid
(H) Charge Relief Solenoid
(I) Wastegate Control Solenoid
(J) Turbo Precontrol Solenoid
Vacuum Chamber
EGR Valve

I left these parts in the diagram but without the attached lines. I am planning to physically remove them from the harness and manifolds if i dont need any of them like i think

Can you guys look and tell me if that is all i will be needing. I live in michigan so emissions arent an issue.

 

If you're doing the Aspec fuel kit, you won't need the turquoise line which runs to the factory pressure regulator. You will have a line going to the ASpec kit FPR, but you really don't need to come off the nipple on the inside of the lower intake (where the turquoise one is today). You can also ditch the solenoid associated with that.

On my single, I have:

1 line to the blow off valve
1 line to the MAP sensor and boost gauge
1 line to the FPR
0 lines to oil metering (I use premix and deleted the OMP)
Purge control lines are there like factory
PCV system is intact like factory
0 lines to the Double Throttle system (also deleted)
0 factory solenoids

 

So, without the vacuum lines to the oil metering (the 2 blue ones near the primary rail) am i going to have to premix? Or can i block them off and have it function somehow?

I dont really mind premixing so if its not a horrible ordeal i might just delete the omp too, unless it is easy to keep it functioning


Where does the line to the FPR need to come from?

Where does the line for the MAP sensor/Boost Guage need to come from?

 

FPR, MAP, and Boost Gauge can come off the engine after the throttle. I use the two metal nipples on the passenger side on the upper intake.

The OMP supplies oil under low pressure (a dribble really). I forget what the accepted explanation is for the vent line on the top. I think it's there to keep the engine from sucking the oil in the OMP lines dry or something ... I dunno for sure. I guess I never thought about it.

When I did have the OMP, I simply hooked up the OMP bolts to the intake tract pre-throttle (using a line on my intercooler pipe). This is slightly different than the factory setup where they are hooked pre-turbo. I don't think it makes a huge diff. For a powerful single turbo car you may wish to run 1/2 ounce premix per gallon gasoline PLUS the OMP. If you delete the OMP, you want to go 1 ounce/gallon gas.