I've been running some Castrol 2-Cycle motorcyle oil in my FB ever since I noticed one of the lines wasn't feeding oil to my primary. I plan on fixing this once the weather turns warm again, but in the meantime I've been running about 1/3 quart per 16 gallon fillup, don't have my calculator but I think its in the ballpark of 120:1 ratio.
Of course, the front oil line is working (FB has 2 not 4 oil lines) but the back one must be clogged, so I'm getting more oil in the front rotor which I guess is no big deal.
Since I need to get the car smog checked, I'm a little worried about how all the extra oil is going to effect my readings, alot of you are saying that the car will actually burn a little cleaner, well I don't know how esp. as rich as I must be running right now.

 

I do. It's :http://www.rotaryaviation.com/oil_in...p_adaptors.htm

I think premix is obviously much better, and with this setup, is easier. For about $100 U.S., this is what I would do instead of premix. It's on my list of *Things to do*, project #2843a. I'm on #1854c...
-John.

 

I have a question for all the people who are currently running premix. Do you find that yoru injectors get dirty much quicker? I get a hesitation right before redline every few months, and a bottle of fuel injector cleaner fixes it every time. I would assume the premix is making the injectors get dirty quicker, which would also mean that fuel filters would need to be repalaced more often.

Lets make the conversion factor simple. There are 128 oz to a gallon. So, if you dont have an OMP, run 1 oz of oil to 1 gallon of gas for a 128:1 ratio. This is slightly richer than the OMP ratio of 150:1, but will not affect anything in a bad way. if you still have an OMP that is working, half that for a 256:1 ratio of remix. That is ebnough to keep the engine alive if the OMP fails, but isnt enough to make it smoke, etc when the OMP is working correctly.

 

i dunno. but hopefully ted will be on to give his insight

 

that adapter plate looks like the way to go. that way you don't have to worry about other people driving your car or forgetting to put it in the gas. what ratio does the OMP deliver, i just 150:1 but it looks like their site say 100:1

 

i think im gonna go with that adapter.

 

I've been told...

150:1 for street use exclusive pre-mix.
400:1 for use with stock OMP.

150:1 is a pretty hard ratio to nail, so 128:1 (1 oz per gallon of gas) is easier to remember.



-Ted

 

where can i get an oil tank to use for the omp adapter ? i looked at jegs and summit and i didnt find anything . i have a few catch cans and wiper fluid tanks , can i use one of them ? the only problem with that is that they are a little big . i was thinking about something that hold 16-32 oz

 

How 'bout using the sub-zero start reservoir?

 

man that adaptors pretty cool I guess you could use any plactic container and find a place in the engine compartment. Now if only I could get my OMP to stop leaking from the back plate!

 

Well, i guess you realy wouldn't call it premixing anymore hu?

At what ratio is that plate going to flow the premix into the system?

 

You mentioned it in a previous post, 100:1 according to the site. I have heard 150:1 as the stock number also, but I don't see why they would alter the flow rate. And no, it's not premix anymore. You would fill your reservoir with two-stroke oil and the metering pump does the "mixing".
As Shamrock1054 mentioned, the sub-zero start reservoir would work nicely.

-John.

 

yea, i know i already asked and answered my own question. I just figured that oil is a different weight/thickness than premix, so i wasn't sure that it would be injected at the same ratio

 

Does the engine end up cleaner even with the OMP still active? Seems to me, that without doing as RTed does the engine still gets carbon buildup from burning the regular oil. Using premix would have any other effect except maybe making the seals last longer.

 

I took the oil injectors out on my "spare" car.. The ones in the lower manifold come out fine...got them blocked off..

However, the ones actually in the block.. There appears to be some little metal....thingy...down in the hole.. what's this? Some kind of diffuser? Should I try to get it out, or just block it off above?

-Tesla

 

Dont mess with that. Thats actually part of the rotor housing. The small hole in the middle is all that goes through the rotor housing. Just use a short bolt to block that one off.

 

Still running the OMP kinda defeats the purpose. It means you are still injecting in oil that wont burn well and causes buildup. Also, when you disable the OMP you can use synthetic oil!

Hooking up a resoivoir to feed 2 stroke in the OMP does not address the issue of the oil dripping in and not coating the whole seal/ chamber evenly.

Don't be lazy. Just premix.

~J

 

where can i buy a block off plate for the omp and i have non turbo 86

 

Guys, i'm putting a s5 engine in to my 87 chassis for a quick fix since I blew up my s4 engine. Can I just leave the eletronic OMP on and use premix? I dont 'have time to swap out my front cover and other stuff right now. I just need to get my car on the road again.

C

 

question:
for the custom block-off plate, is it made so that the original bolts from the oil metering pump can screw back in? or do you just get it permanently welded or stuck to the pump hole??

 

http://www.k2rd.com/Online_Catalog/BlockOffPlates.htm

 

I would love to come up with system that works like a fuel injection sytem. I guess i would have to fifure out a way to control it with my Haltech. Build a reservoir to a custom made fuel type rail and run only two stroke. Well it's gonna have to wait cuz i'm not that bored.

 

Since this has been revived...
http://fc3s-pro.com/TECH/FAQ/premix.htm

This should answer most questions on the subject.


-Ted

 

it says 10mm x 1.0 bolts in plave of oil injectors, but the ones i used were 10mm x 1.25... i actually went through searching for those 10mm x 1.0 bolt with no luck, and when i finally found them they don't fit in the holes... 10mm x 1.25 fits perfectly though

i made a custom block-off plate but now i have a broken bolt in one of the holes while putting the bolt back on...