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You could, from what I hear from others, install the OMP from the '86-'88 on all of the series including the series 6, 3rd gen.
gmonsen has the TII OMP in his list of mods for his 3rd gen. I think that means that he has installed the early model TII OMP so that he won't have to do the premix thing.
Forgive me but what is OMP and what does it do. I thoght the reason of Going Haltech was so you had control over everything. Now it seems that Going Haltech only present more demons
Oil Metering Pump = OMP, it supplies oil to the oil injectors to lube the apex seals. The 88 and older OMP's are mechanically operated so they don't need any electronics to run them vs. the 89 and newer ones that have the computer control their function.
i use the purely mechnical OMP from a normally aspirated 87 rx7. it is fitted to the front cover and uses three of the existing mounting hols. we made a custom bracket and drilled a 4th hole to mount it. uit is driven and fits into the gear perfectly. i had this done by kd rotary and saw it being installed, but can't tell you a whole lot more than this. it completely handles my oiling requirement and i have not used premix for the last year. it is rpm based and not load and works fine.
-gordon
[This message has been edited by gmonsen (edited June 13, 2001).]
Gordon - I still think you should be using pre-mix with your car. Why would you possibly choose to burn dirty 4 cycle engine oil when you can instead burn clean 2 cycle engine oil designed to burn cleanly? After looking inside a few motors I've seen a pattern where the points that show the most wear are the points farthest away from the oil injectors. This leads me to believe that the stock OMP, even on stock motors, is insufficient. I run premix even on my bone stock '90 Convertible.
I reccomend to everyone to use premix. And on a modded engine where the lubrication requirements are even greater, I think it's suicide not to run premix.
You don't need to run premix... I'm not. I have a mechanical Oil Metering Pump (Thats what OMP stands for... it insjects oil into the combustion chamber for lubrication) and I have an external resevoir filled up with Yamalube. Running premix (if you do it wrong) can ruin your engine if you don't get the ratios right... lots of people just dump a pack of 2 cycle in at fill up... I don't consider that doing it right. Your gas should be mixed before putting it in there to ensure consistency... Oil is an impurity in the gas... too much and its detonation time.
I would like to know how much oil is needed per gallon of gas when you do away with the omp. It seems like somone told me one time but I forgot. Thanks.
bootsd7: first, whatever works for anyone over time is good for them. i know several people with stock or modded engines that run premix. i ran premix when i first got my haltech installed and before dave and i worked out that a mechanical pump could be made to work. second, as far as the dirty oil thing, i use redline synthetic and don't feel this is a problem. (ie, it works well for me so far in a fairly high output motor.) third, like everything else in my motor it seems, my injectors are modified and flow a good bit more than stock.
overall, i've worked really hard to build a bullet-proof, high output motor (450-ish hp) that won't grenade on me. however, one of my design requirements was that it not require a lot of non-stock steps and premix was a pain. i am now about to add the aquamist 2c to my car and have some concerns over having to fill the water reservoir when i fill up with gas. i think this is something i'll be willing to do though, since there are so many gains from the water that i can't get any other way.
Well it looks like I will be running Motul 600 with premium. I like the idea of knowing without a doubt the rotors are getting oil. Also I can adjust for how much oil I want to get the rotors. I have been told that you should use more for track use than everyday driving. I am just wondering if the pump and injectors are supposed to be pumping oil in with the gas. would the fuel filter clog faster?
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