Are you using an oem oil filter?

 

An oil filter is just an oil filter, right?

 

Some decompose faster that others. Meaning they release filter debris more than others. Maybe that has some sort of chemical effect with the pre-mix?

-HeX

 

Not really. Check this thread:

https://www.rx7club.com/forum/showth...threadid=61636

 

doesn't the premix have some adverse affect on performance? There must be some drawbacks...

 

I use the Exxon brand 2 stroke oil. It claims to be ashless and meets all of the SAE specs required of the top quality oils. It is also a fraction of the price of the synthetics.

 

All oil filters are not the same.

See:

http://www.minimopar.net/oilfilterstudy.html

 

no. if anything it would be a performance INCREASE (providing that you blocked off your OMP and oil injectors) well, maybe not performance, but engine longevity.
the oil injectors only cote about 1/3rd of the rotor (the middle third)
when you premix, that oil gets shot through the injector, coating the whole face of the rotor.

 

what do you mean block off your OMP and oil injectors?

 

Perfect bottle for premixing. Can be found at Lappen's where MMO would be.

 

sounds pretty self-explanatory to me.

block off your oil metering pump and block off your oil injectors...
then put MMO or 2 cycle engine oil in your gastank when you fillup with gas.

 

Premixing ALSO lowers octane levels.

 

so dont crank the boost.

i dont think lowering your octane by one point is going to be that big of a problem. (unless you are running alot of boost of course)

 

4oz. of premix in a full tank of gas is not going to lower your octane level. Not to mention the fact oil is harder to burn than gas so if anything, wouldn't we be bumping it up a bit? Pennzoil makes a synth 2 stroke which can be found at Walmart in a big yellow container for under $20. I think it's full gallon in size.
Michel

 

I got some MMO today. I read the directions, 4 oz to every 10 gallons of gas... this was after I put the whole quart in the tank!!!
Will this cause any major problems? I did fill up before I poured it in.

 

Oh ****! I don't know but It's probably drivable. Just keep adding gasoline every day to dilute for safety.

I hope your setup is close to stock

 

Yikes! The whole Quart! It will probably foul up your plugs a run like crap, but I don't think it should hurt anything. You will just have to scrape the exhaust pooh off the back of your car!

 

Syphon it out!

 

marvel oil is thinner than most of the premixing oils that everyone uses. it will not hurt, but it would be wise to dilute the mixture the first opportunity you get.

as far as premixing, i stopped premixing about 6 months ago. i was getting more oil smoke than i liked and began adding the MMO to the oil @ the change interval. since then, everythnig has been fine. however, i still get some smoke on start up/warm up, and i expect to see it as long as i own the fd. i have no cats, and there is residual oil that is not burned in the combustion chamber after shut down, so the small amount of oil in the morning does not bother me..

louis

 

i use premix, but i have no OMP due to e6k.
you can drain some fuel from the 14mm bolt on bottom of gastank to dilute. you could also disconect elictrical conection for the omp for this tank. (pump will still run at about 50% duty from my understanding of it.)

 

I still have my OMP and oil injectors and i use MMO every fill up. I didn't know i'm suppose to block omp and oil injectors in order to premix. Is this true?

 

Well, I started the car today and it smoked a little more and ran a little rougher at start-up than usual, but once it warmed up it ran smooth. One thing did occur, the vacuum improved from 16in to 20in!! Could that be from the MMO? And to make sure it was not a fluke reading, I stopped and restarted the car several times and the vacuum reading still read 20in!!

 

you're not. blocking them off is for those of us running a haltech ecu. the omp is electronic in the 3rd gens. the haltech does not have a provision output to control it. (the new E11 does but not the e6k like most people use) you *can* use a mechanical omp from say an 87 n/a to work and not *have* to premix, but this needs to be retrofited inorder to work. it was not worth the hassle to me, so i just did away w/ mine. i started to try, but gave up very quickly.

 

So for you guys that have actually blocked off your omp how much pre mix are you using for a full tank???

I've been using about 8oz for a full tank of gas. I blocked off my omp so premix is all I have, hence the 8oz instead of usual 4oz. If you use less than 8oz how long have you been doing it that way???

STEPHEN

 

When I first bought my 7, a service manager from a shop that dealt in rotaries said that premix can help with compression.

I acutally have no smoking (at startup), since I've switched to MMO (from Penn premix)