Daily Drivers running no OMP
WingmaN
Joined: Aug 2002
Posts: 4,324
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From: Fort Worth Texas
Originally Posted by Dan H
Do you accept Paypal? I am thinking of ordering a set in the near future when I'm done with my rebuild. I don't want to pay for the pricey and easy to snap OEM Mazda lines.
but advertising was never my strong point. I have a couple more new things to add to that site I think.... We are starting on a semi dry sump setup with remote oil filters, and some emmission block-off kits. So check back or email for updates on new stuff.
Windsor, Ont
Joined: Sep 2002
Posts: 1,175
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From: Windsor, Ont
would it do any harm in keeping the OMP and premixing as well.. Just for some extra lube and as a backup.. I'm suprised no one sellls aftermarket kits that would just be like a small injector that taps into your gas line and injects a small amount of oil for every set number of litres that passes through, keeping the mixture even, then no premix.. just another resivior you have to fill every few fill ups.
WingmaN
Joined: Aug 2002
Posts: 4,324
Likes: 0
From: Fort Worth Texas
Originally Posted by Dan H
Cool. If you want, I'll send pics of the lines installed on my engine once I order them. And it'll look pretty with powdercoated chrome housings and black irons. 
Cool, that would work
Lava Surfer
Joined: Mar 2002
Posts: 2,354
Likes: 0
From: Kailua, HI
Originally Posted by Tofuball
The ECU in an S4 wont know if the OMP goes bad.
The units that the oil drips out of tends to clog in my experience.
IF you have a premix that is made for 100:1 mix ratios, you cant mix it 128:1 and have it still work like it was made to. I personally mix 100:1.
How do you tell if you OMP is busted? Simple, just check to make sure your car is using the correct amount of oil based on your driving. I've HEARD a quart per an oil change, but i"d look it up if I were you.
The units that the oil drips out of tends to clog in my experience.
IF you have a premix that is made for 100:1 mix ratios, you cant mix it 128:1 and have it still work like it was made to. I personally mix 100:1.
How do you tell if you OMP is busted? Simple, just check to make sure your car is using the correct amount of oil based on your driving. I've HEARD a quart per an oil change, but i"d look it up if I were you.
if you changed you're oil every 1500 miles, this is correct.
Rotary Enthusiast
Joined: Jan 2003
Posts: 1,255
Likes: 0
From: fl
Originally Posted by BlaCkPlaGUE
I don't think I'll ever go premix, it is an AWESOME idea, and a far superior/reliable way to lubricate the engine, in no way am I saying its a bad idea... However it may not be a good idea on the account of 'one' thing
resale.
When you guys want to sell you car, and you get a buyer who's never had a seven but a shitload of cash, telling them that you HAVE to add 2 stroke oil at every fillup is gonna turn em off from buying.. most people buying cars don't want to have to do anything more than fill her up, and drive her.
But yea, I'll stick with my OMP, unless I plan to keep this car forever...
The next seven I get will be *mint*, I don't want any body damage or a shitty ineterior, I'll pay more, but it will be worth it. This will be my final seven that I'll have forever, then I'll be doin pre-mix
resale.
When you guys want to sell you car, and you get a buyer who's never had a seven but a shitload of cash, telling them that you HAVE to add 2 stroke oil at every fillup is gonna turn em off from buying.. most people buying cars don't want to have to do anything more than fill her up, and drive her.
But yea, I'll stick with my OMP, unless I plan to keep this car forever...
The next seven I get will be *mint*, I don't want any body damage or a shitty ineterior, I'll pay more, but it will be worth it. This will be my final seven that I'll have forever, then I'll be doin pre-mix
this is why you keep the OMP and stick it back on if the new owner doesnt want to bother with premixing.
compared to the s5 electric OMP, premixing will be a little more expensive, but when compared to the s4 that dumps a lot more oil, its probobly not much more expensive at all considering the amount of crank oil getting used.
just buy in bulk. a gallon can be had for $5-6. thats 8 pints of oil, 8 tanks, about 350 miles to a tank makes 2800 miles. in that much time an OMP will use 1-2 quarts of crank oil at about $2 or so a quart, so the extra cost is realy negligable, especialy when compared to the benefits of premixing.
Rotary Enthusiast
Joined: Jan 2003
Posts: 1,255
Likes: 0
From: fl
Originally Posted by CompuBob
would it do any harm in keeping the OMP and premixing as well.. Just for some extra lube and as a backup.. I'm suprised no one sellls aftermarket kits that would just be like a small injector that taps into your gas line and injects a small amount of oil for every set number of litres that passes through, keeping the mixture even, then no premix.. just another resivior you have to fill every few fill ups.
i think rotary aviation makes a kit to convert the omp from crank oil to pickup froma seperate resevoir of of 2-stroke oil. squirts it in throught the lines and nozels just like stock, only cleaner and better for the engine.
I live in an igloo
Joined: Jul 2004
Posts: 2,546
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From: calgary alberta
Originally Posted by Tofuball
I dont think that would work unless it mixed it with gas first :/
It does mix in with the gas, the first set of OMP injectors are right before the primary fuel injectors.
Andrew, lol, I never thought of that
keep the omp... sometimes im just not thinkin 
I live in an igloo
Joined: Jul 2004
Posts: 2,546
Likes: 0
From: calgary alberta
speedmonkey, you will need a block off plate for the omp. As for anything else, im not to sure...
I plan to take apart my OMP and see what makes it tick, if possible. From there I'll make any repairs that I can.
I plan to take apart my OMP and see what makes it tick, if possible. From there I'll make any repairs that I can.
Full Member
Joined: Dec 2003
Posts: 88
Likes: 0
From: Easley, sc
as soon as i get the chance i'll be blocking off my MOP and running premix, but i have one question. I think my MOP is going bad slowly as my car randomly went into limp mode once for a couple minutes last month and has driven normally ever since. Is there any way to use some resistors across certain pins to make the ECU 'think' that the MOP is still connected and working fine?
Patrick
Patrick
Lives on the Forum
Joined: Feb 2004
Posts: 5,721
Likes: 3
From: Coldspring TX
That question is the Holy Grail for you S5 guys, lol...If I had an S5, I would have already tackled the project, but there's nothing in it for me
For everyone else that's posting wanting to know how to remove all of this OMP stuff, search a little, we go over this about once a month
For everyone else that's posting wanting to know how to remove all of this OMP stuff, search a little, we go over this about once a month
Lava Surfer
Joined: Mar 2002
Posts: 2,354
Likes: 0
From: Kailua, HI
Originally Posted by speed_monkey
I feel dumb asking this, do you just pull off the omp or is it more complicated than that? 
I have a 88 rx7 if that helps.
I have a 88 rx7 if that helps.you will need a blockoff plate to cover the hole it leaves.
as for S5's, well my buddy broke some of his lines off when he was working on the car....so rather than buying a new set, we got bolts that would fit and stuck them in the OMP to plug the holes up and did the same at the oil injector spots. the OMP is a stepping motor, it doesn't actually pump oil so you're not gonna destroy it doing this. i believe it just routs oil pressure to the injectors differently based on rpm (anyone feel free to correct me if im wrong) so plugging it up means it won't harm it/kill it and throw you in limp if you have an S5.
casio isn't here.
Joined: Sep 2002
Posts: 3,332
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From: Greenpoint, Brooklyn
a funnel is $0.97. i almost broke down and bought a bottle that i could use as a funnel, but never reached that point. finally found the funnel i'd been looking for.
nonameo, whats a techron bottle ?
nonameo, whats a techron bottle ?
I live in an igloo
Joined: Jul 2004
Posts: 2,546
Likes: 0
From: calgary alberta
Heres a question for you guys. How fast should the oil come to the injectors when they have been replaced and are empty? im thinking that it should be immediate, and shouldn't take longer than a minute or so.
Full Member
Joined: Oct 2004
Posts: 140
Likes: 0
From: jo kansas
ok im new i just bought my second rx7 its an 87 none turbo street port its got like 3500 on motor and trany it has no omp (premix only) right now im doing 1oz per gal.
when i give it gas it starts to die out before it revs up and trys to die and usaly dose when it revs down i changed the plugs whitch were fauld to hell and nothing happend...
so now for the question........
iv herd to mix 4oz to 10 gal is this right??? cus i think runing 1oz to the gal is to much oil and it is cosing the rev/staying runing problem .............or at least hopfully
when i give it gas it starts to die out before it revs up and trys to die and usaly dose when it revs down i changed the plugs whitch were fauld to hell and nothing happend...
so now for the question........
iv herd to mix 4oz to 10 gal is this right??? cus i think runing 1oz to the gal is to much oil and it is cosing the rev/staying runing problem .............or at least hopfully
Full Member
Joined: Oct 2004
Posts: 140
Likes: 0
From: jo kansas
i posted this on the wrong thread...........
ok im new i just bought my second rx7 its an 87 none turbo street port its got like 3500 on motor and trany it has no omp (premix only) right now im doing 1oz per gal.
when i give it gas it starts to die out before it revs up and trys to die and usaly dose when it revs down i changed the plugs whitch were fauld to hell and nothing happend...
so now for the question........
iv herd to mix 4oz to 10 gal is this right??? cus i think runing 1oz to the gal is to much oil and it is cosing the rev/staying runing problem .............or at least hopfully
ok im new i just bought my second rx7 its an 87 none turbo street port its got like 3500 on motor and trany it has no omp (premix only) right now im doing 1oz per gal.
when i give it gas it starts to die out before it revs up and trys to die and usaly dose when it revs down i changed the plugs whitch were fauld to hell and nothing happend...
so now for the question........
iv herd to mix 4oz to 10 gal is this right??? cus i think runing 1oz to the gal is to much oil and it is cosing the rev/staying runing problem .............or at least hopfully
Rotary Enthusiast
Joined: Jan 2003
Posts: 1,255
Likes: 0
From: fl
use wal-mart brand (supertech) 2-stroke oil bottles. they are 16 oz. and have an ofset neck which lets you pour with out spilling, without a funnel. techron bottles are a good idea, but the caps dont seal reliably, while the wal-mart bottles seal just fine.