Hey all, I have seen a bunch of ppl talking about using premix and ditching the OMP. But I was wondering if you could use the OMP to pump 2 stroke oil from a remote resivour(sp) so that you could always just keep the little premix oil tank full, and not have to worry about getting the right premix ratio.

 

The way its set up, I dont see that being possible on a s4. Why not just premix from the gas tank?

 

It was kind of a curiosity thing, cuz I would think that doing premix in a daily driver, would be a pain in the *** and this way it would be fairly simple.

 

One of the problems with the OMP/MOP injectiopn is that the oil dribble only lubes ONE area of the rotor.

THe FI spray takes care of this... so premix inTHE TANK is better

 

Such a hook-up/device is discussed in this thread:

https://www.rx7club.com/forum/showth...threadid=64310

 

If you don't premix your engine could get sick and die. The OMP is evil!

 

beh! they sell a device for avation for around $100 that mounts under the OMP that has a hook up for a seprate reservoir.

i also heard that the standered OMP does a fine job of oil coverage and the only problem is if the omp stops working. So its best the 'downgrade' to the mechanical style pumps if u have an s5.

your right, trying to drive your car daily and premixing sux! Makes topping off rather hard to do....

check this!

http://www.gdsys.net/WWWmembers/unic...KEL/wankel.htm

 

interesting.
is there a HOWTO anywhere on here for blocking-off the OMP?
i'd love to premix all the time.

 

Its as simple as taking off the omp making a block off plate removing the omp lines and then block off the oil injectors. Add premix to gas tank your done.
-Gabe

 

oh... damn i just got owned.

 

CARBON IS EVIL!! Ok, I've read about ONLY using fuel injected approved 2-stroke oil. Anybody have experience with this stuff...I've read about people pre-mixing and fuel filters cloggin and injectors getting clogged. I plan on running pre-mix on my rebuild.

 

Just get something that was designed to be run through two strokes with reed valve induction. A reed valve will clog easier than an injector or filter.

OC I considered the aviation mod for a header tank supplied OMP instead of the stock setup. Really, the problem with the OMP is the oil it injects, not it per se. But the evidence of this device merely "dripping" oil into the center of the housing has me tilting toward the hardcore lifestyle.

You know what I am going to do? Oregon sucks in a few ways. You can't pump your own gas, someone working at the station has to. I don't want to have to explain why I need to put a half quart of premix into my car at every fill-up so I devised a plan. I will mount a six ounce R/C model engine fuel tank in my spare tire well with a 12 volt electric fuel pump also made for model use. When I stop for gas, I'll hit a switch and have it squirt the two stroke oil into the main tank as it is being filled. There would be lots of liquids sloshing around and mixing in the process . . . just my crazy idea. I will let y'all know how it works out when I get some $ to fix my messed up engine and get it running again.

I still have to come up with a way to remotely fill the 6oz tank between fill-ups without opening up the tire well. I think I will get a half gallon reserve container and hook up a fill valve to the 6oz tank, using a manual valve and gravity feed.

Sound like a plan?

 

oh yeah...forgot about that..good ol' Oregon..I used to live in Stevenson in the Columbie Gor. and I remember having to have them pump when we went over the river. Im going to make some little tiny stick deal to put somewhere so I'll always remember to add oil to my gas....forgetting could be a bit costy! Do most people just try to run the car as close to empty as possible, then add the oil, then gas when you fill up to get a good mix?

 

Well first off I won't have to worry having ppl pump my gas because that is what I am doing for a job right now But something else I though about was jsut having a small pump that would mix the premix as it is pumped into the Intake, kinda like older 2 stroke street bikes. Ohwell thought I had a good idea going but I guess not.

 

Yup.

 

What do you mean you guess not? That is the perfect idea. It is like taking an OMP and rigging it to feed the fuel injectors rather than drip oil into the housings. Using that with a reserve tank for two stroke oil is the ideal solution. If something like that is still not available for RX-7s when I become an engineer, I will start a company and produce them.

 

The thing that gets me is that the injectors from the OMP have such lousy coverage.

This is why I'll continue putting the premix in the tank.

In Ontario we can choose between self and full serve. I prefer self, mainly cuz I don't see the point in paying a few extra bucks when those lazy ***** still won't clean my windows...

 

I pump my own gas (some girl put a huge scrape in the paint on my dads truck when filling it up). Plus it is a little cheaper.

 

In Ontario we can choose between self and full serve. I prefer self, mainly cuz I don't see the point in paying a few extra bucks when those lazy ***** still won't clean my windows... [/B][/QUOTE]

Yeah I tend to never wash ppls windows, but I definatly would, but the only seven that ever comes into work has a 350 chevy small block.

Back on the subject. From what I am hearing the oil injectors don't really "inject" oil they just drip the oil on the rptors? That seems stupid, I will definatly look into my idea, it shouldn't be that hard. They have been doing that on motorcycles for a LONG time.