Burnin_streets

Ok, so found this website. They are offering a product that I think is good looking, but I wanted additional input. http://www.rotaryaviation.com/oil_in...p_adaptors.htm
Any thoughts?

Gringo Grande

iTrader: (97)

This is not new...search is your friend.

Rob XX 7

iTrader: (8)

thats not a bolt on and go thing unless you use thier stepper motor, if you use thier stepper motor it will always be a little rich burning.

You have to adapt your stock OMP to thier adaptor, then run it off some kind of linkage- easier to do on a S4 throttle body then a s5 because of the mechanical OMP linkage.

I have it on my car, but its not quite up and running because I have to swap out my throtle body, I just cant be bothered right now.
Because he also does not sell another adaptor he used to make anymore you will need someone to machine a small piece so you can bolt the RA adaptor up to your motor.

alexdimen

iTrader: (13)

Actually, it is a bolt on and go thing. They make an adapter for every type of OMP. Also, they do not offer a stepper motor, they offer a device that fixes the injection rate on a electric OMP for the REW engine's OMP for use in aircraft.

Burnin_streets

So I searched a hell of a lot last night and came to my own conclusion that running premix is superior to using the stock OMP. If I do buy this part, what more will I need to hook everything up in the motor. I want to run the whole tank in the engine bay thing. I was also wondering how it is injected? It isn't going into the holes where the old oil dribblers used to be. Any clarification on this would be greatly appreciated.

totpkg

I used one of these on my '88 vert. I worked well, but it does not eliminate your OMP ... What is does is block off you OMP from using motor oil, then you have to supply this adaptor with 2 cycle oil ... via the nipple (see pics) then you have to route a hose/tank ... etc. The 2 cycle oil is then routed into your engine via omp/lines ... If you have a bad OMP or leaking/clogged lines this will not work.
I liked it, because I only had to keep my tank filled and not pre-mix in my gas tank, on fill ups and did not have to worry about over/under mixing ...

I bought another one a long time ago to work on my S5 ... but when I went to install it I could not get it to fit properly ... so I never used ... eventually sold on Ebay.

Burnin_streets

Ok, so now I understand a little better. I F***ed up my OMP lines on removal, anyone got a nice set they wanna hook me up with for cheap or trade some parts? At what ratio does the adapter mix at?

Rob XX 7

iTrader: (8)

thank you- you know its not a bolt on and go thing, there is something that prevents it, what exactly I dont remember, but we spent HOURS on this, including phone calls with the guy who makes it- and even he said you cant use it for the purpose I needed it for. Im not talking out my butt, I just went through the whole thing.

If you want it to run off LINKAGE, it is not a bolt on and go thing, if you want it to always inject the same amount of oil in then you might as well pre-mix.
It works well on airplanes because they are always running the pretty much the same RPM.

Im telling- trust me that for a S4 or S5 motor you cant just bolt this thing on and go- it does not work.
If you dont believe me send the guy makes the darn thing a email.

And again- Im running it on my car, S5 TII motor, S4 OMP, S4 throttle body, but the aviation adaptor had to be modified to work.
Its currently not being used because my OMP is leaking, but once thats rebuilt it will be back in action.

And dont think of it as working the same as the old OMP system- the key to this, and what few people seems to grasp - is that you are now injecting 2 stroke oil
which is MEANT to be burned, unlike motor oil. So you get the best of everything.

Burnin_streets

So wait....buy the adapter, a tank....way to hook the two up and it'll run fine? just using the dribblers from the original OMP? Sorry, sorta lost!

Rob XX 7

iTrader: (8)

at one time he made a "adaptor" for the adaptor.
So guys like us could use them in our cars.
He literally made a handfull of them and stopped.

SpeedNYC has one of those on his car, his car is a FD so he uses a cable as linkage for his set up.

We just about begged him to make them again, even offered to buy a dozen or so of them but he said he was having problems finding machine shops to make them for him.

Mine uses his adaptor which we had to have someone machine a another piece to get it to work- s4 OMP- linkage to the throttle body, and a drive fluid bottle from a marine application, but you can use any container- such as a catch can.

you can make out the container in the pic, its with the red cap on it.
I still have a s5 throttle body on the car in this picture, at this time its running premix. Ill see about trying to get a close up picture of the adaptor and try to explain why it wont work "as-is"

Rob XX 7

iTrader: (8)

never mind the anti-freeze, I just changed that clamp and some trickled out

Gringo Grande

iTrader: (97)

There is a great writeup in the archives about making OMP lines.

totpkg

Rob ... let me ask you this .... You have a S5 motor, which has (or had) a electronic OMP? So the adaptor you got from PCV was the electronic one to fit your S5 engine? You sound like you're having the same problems I was having ... the electronic adaptor PCV sells (or the one I had) ... did not fit correctly ... there was not enought room to mount the S5 OMP to it.
On the mechanical OMP (S4) - to a S4 motor, the mechanical adaptor worked fine.
--the Mechanical - I mounted the adaptor, then my S4 OMP and ran the oil metering lines, had to bend my S4 OMP linkage to fit to my throttle body, then run my 2 cycle line from my tank, which is gravity fed to the PCV adaptor.
--the electronic - I tried the same thing, but there was not enough room for the adaptor then the electronic OMP, due to the lower radiator hose/water pump housing outlet ... there would not have been any linkage, as the OMP would operate as stock.
In my opinion, if I were running S4 water pump housing/mechanical OMP ... I would prefer to run this set-up any day ... the oil/fuel ratio is set as Mazda set from factory, no guessing or pulling premix stuff from my trunk ... just check the 2 cycle tank when you check the oil...

totpkg

I was typing when you posted the last pic ... I cannot see the mechanical linkage ... it must be behind the omp. I don't remember getting anything machined ... but did take a bit of bending and fitting to get the linkage to work smoothly with the throttle body ...

Rob XX 7

iTrader: (8)

im running a s4 front cover, s5 waterpump housing- I THINK, because honestly we swapped them out 3 different times trying to get the adaptor to work.

But yes- there was not enough "meat" to bolt the adaptor up, or only 2 bolts were going to be used, we went through this months ago and honestly the older I get the less I remember about specific steps- but I do know it dont just BOLT ON AND GO.

BTW- the OMP linkage is not in that pic, im still running s5 throttle body for now, but I have the linkage all ready to go- it even matches my UIM/LIM

When the set up is up and running you get the very best you can get- because its injected where it should be, at the rate it should be- but now your
injecting 2 stroke oil thats designed to be burned.

Burnin_streets

Everyone is giving different answers. Lets hear from the people that have acutally done it. What exactly do you need? The adapter from rotary aviation, a tank, and a way to fuse them. Is this it???

Burnin_streets

btw I have a S4 NA

The Griffin

Which adaptor are you using and which one doesn't fit,or more specifially what exactly doesn't fit? He makes one for the 3rd. gen/S5 front cover(elec. OMP bolt pattern) that adapts the S4 mech. OMP.Is this the one you are talking about? Obviously if you try to adapt a mech. OMP to a elec. OMP front cover you need to rig up the linkage. You can use a aftermarket throttle cable. "Lokar" makes a nice one with a generic lever that should adapt without much fuss to the throttle body ,but you need to make the brackets on either end and adjust it correctly, and make/get the OMP lines to fit etc.

Rob XX 7

iTrader: (8)

you cant use a s5 OMP with a standalone and that adaptor, so you need to use a mechanical OMP, he does not make a adaptor that works for this.

I know what he sells, and you read it thinking it will work- but if you speak to him or email him he will tell you it wont work as-is, because it wont- unless you run his whole system which is meant to run on a airplane at one RPM range.
If you run that way might as well pre-mix because it no longer operates off throttle

Again all we did was have a small piece machined to adapt his piece to work, and then we can run the mechanical OMP linkage that came stock on a S4 car.

You can use a bicycle cable for the linkage if you want, thats not the problem, the problem is getting the adaptor to bolt up to the front cover and have the nipple facing the right way- it wont bolt up.