Sohn Adapter
07-06-2016, 06:02 PM
#1
Registered
Thread Starter
Sohn Adapter
Hey I just bought a Sohn Adapter for my 8 and had a couple questions about what oil to use. I did a crap load of googling and forum searching and never came up with a concrete conclusion as to what to use.
From what i understand, people use either some sort of 2 stroke oil in the reservoir or put in Idemitsu Premix.
I'm thinking about going down the Idemitsu Premix route but am not sure about my decision. Do i put the undiluted premix into the reservoir or do I mix it with something for the sohn adapter?
What do you guys use/recommend? Thanks in advance!
From what i understand, people use either some sort of 2 stroke oil in the reservoir or put in Idemitsu Premix.
I'm thinking about going down the Idemitsu Premix route but am not sure about my decision. Do i put the undiluted premix into the reservoir or do I mix it with something for the sohn adapter?
What do you guys use/recommend? Thanks in advance!
The following users liked this post:
Qonjin (11-24-2022)
07-06-2016, 06:15 PM
#2
You gonna eat that?
iTrader: (1)
Don't dilute it.
Use any JASO certified low ash 2 stroke oil.
Use any JASO certified low ash 2 stroke oil.
07-06-2016, 06:31 PM
#3
Registered
Thread Starter
07-06-2016, 06:42 PM
#4
You gonna eat that?
iTrader: (1)
There are different types, but it's called a rotary premix by Idemitsu.
You can usually find cheaper alternatives if you don't want to special order it.
You can usually find cheaper alternatives if you don't want to special order it.
07-06-2016, 06:45 PM
#5
Registered
Thread Starter
07-12-2016, 04:15 PM
#6
Registered
Thread Starter
So i have it installed and added Idemitsu Rotary Premix to the reservoir. Is there anyways to test that it is working? I primed the tube so there are no air bubbles and added some premix to my gas just incase.
I have no CEL and the car drives exactly like normal with no oil leaks.
I have no CEL and the car drives exactly like normal with no oil leaks.
07-12-2016, 08:26 PM
#7
Are we having fun yet?
Join Date: May 2016
Location: Plenty Curvy Southern Oregon
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
So i have it installed and added Idemitsu Rotary Premix to the reservoir. Is there anyways to test that it is working? I primed the tube so there are no air bubbles and added some premix to my gas just incase.
I have no CEL and the car drives exactly like normal with no oil leaks.
I have no CEL and the car drives exactly like normal with no oil leaks.
How's the SOHN adaptor holding up for you?
About how much 2-cycle are you going through?
A question for you or anyone else:
How is the oil pressurized for injection? It is my understanding that the OMP has a stepper motor to open a valve allowing more oil to pass through and there is also an adjustable potentiometer I assume is designed to feedback the valve position.
Further it is my understanding that the SOHN adapter simply blocks the feed of crankcase oil and instead provides a barbed fitting as an alternative feed source for cleaner, higher quality and more desirable oil. Functionality of the PCM driven metering is unchanged , only the source of oil that is metered to the combustion chambers.
Not knowing more about the operation of this system I am assuming two things:
1)In a stock system the oil feeding the metering pump is pressurized from the oil pump that is also supplying other parts of the motor.
2)An SOHN is essentially gravity feed 2stroke to the metering pump.
IDK. What am I failing to understand here?
07-12-2016, 08:36 PM
#8
Registered
Thread Starter
Hi Aorkennykiller
How's the SOHN adaptor holding up for you?
About how much 2-cycle are you going through?
A question for you or anyone else:
How is the oil pressurized for injection? It is my understanding that the OMP has a stepper motor to open a valve allowing more oil to pass through and there is also an adjustable potentiometer I assume is designed to feedback the valve position.
Further it is my understanding that the SOHN adapter simply blocks the feed of crankcase oil and instead provides a barbed fitting as an alternative feed source for cleaner, higher quality and more desirable oil. Functionality of the PCM driven metering is unchanged , only the source of oil that is metered to the combustion chambers.
Not knowing more about the operation of this system I am assuming two things:
1)In a stock system the oil feeding the metering pump is pressurized from the oil pump that is also supplying other parts of the motor.
2)An SOHN is essentially gravity feed 2stroke to the metering pump.
IDK. What am I failing to understand here?
How's the SOHN adaptor holding up for you?
About how much 2-cycle are you going through?
A question for you or anyone else:
How is the oil pressurized for injection? It is my understanding that the OMP has a stepper motor to open a valve allowing more oil to pass through and there is also an adjustable potentiometer I assume is designed to feedback the valve position.
Further it is my understanding that the SOHN adapter simply blocks the feed of crankcase oil and instead provides a barbed fitting as an alternative feed source for cleaner, higher quality and more desirable oil. Functionality of the PCM driven metering is unchanged , only the source of oil that is metered to the combustion chambers.
Not knowing more about the operation of this system I am assuming two things:
1)In a stock system the oil feeding the metering pump is pressurized from the oil pump that is also supplying other parts of the motor.
2)An SOHN is essentially gravity feed 2stroke to the metering pump.
IDK. What am I failing to understand here?
It just worries me that post installation i dont have any way of knowing that oil is being injected like normal.
Does anyone know if i would get a CEL if the OMP is not injecting oil properly or is not working? Are there any symptoms that it is not working?
07-12-2016, 09:38 PM
#9
The only realy way to know is to see the level going down. Premix until you're satisfied that is happening. A few high rpm runs should flush any air from the system. Optionally, continue premixing.
The oil injectors line is not pressurized, the OMP simply pushes the oil down the line at a set rate, and engine vacuum plays a role in sucking it down. It doesn't actually inject in the same way that fuel is injected, there is no mist. It just dribbles and gets smeared around by the apex seal.
The oil injectors line is not pressurized, the OMP simply pushes the oil down the line at a set rate, and engine vacuum plays a role in sucking it down. It doesn't actually inject in the same way that fuel is injected, there is no mist. It just dribbles and gets smeared around by the apex seal.
The following users liked this post:
Qonjin (11-24-2022)
07-12-2016, 09:49 PM
#10
Registered
Thread Starter
The only realy way to know is to see the level going down. Premix until you're satisfied that is happening. A few high rpm runs should flush any air from the system. Optionally, continue premixing.
The oil injectors line is not pressurized, the OMP simply pushes the oil down the line at a set rate, and engine vacuum plays a role in sucking it down. It doesn't actually inject in the same way that fuel is injected, there is no mist. It just dribbles and gets smeared around by the apex seal.
The oil injectors line is not pressurized, the OMP simply pushes the oil down the line at a set rate, and engine vacuum plays a role in sucking it down. It doesn't actually inject in the same way that fuel is injected, there is no mist. It just dribbles and gets smeared around by the apex seal.
07-13-2016, 04:38 PM
#11
Hi Aorkennykiller
Not knowing more about the operation of this system I am assuming two things:
1)In a stock system the oil feeding the metering pump is pressurized from the oil pump that is also supplying other parts of the motor.
2)An SOHN is essentially gravity feed 2stroke to the metering pump.
IDK. What am I failing to understand here?
Not knowing more about the operation of this system I am assuming two things:
1)In a stock system the oil feeding the metering pump is pressurized from the oil pump that is also supplying other parts of the motor.
2)An SOHN is essentially gravity feed 2stroke to the metering pump.
IDK. What am I failing to understand here?
The stroke of the pump is adjusted by the stepper motor and allows for different amounts to be injected
The ideal scenario to use is an aftermarket tuner like a Cobb Accessport or MazdaEdit to adjust the oil amount injected via the ECU map that controls the pump
Thread
Thread Starter
Forum
Replies
Last Post
King Arthur
Series I Aftermarket Performance Modifications
7
11-10-2016 09:18 AM