Kakashi07

iTrader: (3)

So after some inspection on th FD I noticed that my OMP voltage is staying at a steady .93 volts and flashing which leads me to believe it is going bad. Luckily for me I have been premixing just in case. I am glad that I was because there is no telling how much damage it would have caused had it failed before I started premixing. So here is my dilemma, do I just eliminate it all together and premix from now on or do I get a new OMP and the rotary aviation adapter plate and pull from a seperate reservoir. I have been searching the other threads and there is one thing I have been wondering as well. When premixing does it effect the fuel filter or injectors at all being as you are mixing oil with the fuel? Are the particles small enough to prevent clogging? I appreciate any input.

oyvindjs

iTrader: (4)

After weighing back and forth carefully... I came to he conclusion that going RA-adapter and OMP was the way to go.

Pros:
easier imo. with an oiltank with a leaver in it, when low oil, lights up an oil light and lets me know i need to refill
OMP was constructed to deliver enough oil under any load
Unknown stock ecu, but on aftermarket ecus like for ex apexi, the injector duty cycle drops to 0% on full decel( zero throttle, engine brake) until you drop so low in the rev range that you fall inside idle area. When premixing, the housings/combustion chamber/seals/apexes would get zero lubrication on long decents, and that we have PLENTY of in Norway. With my RA superseals(hard seals), im not taking that risk having my housings being eaten from lack of lubrication, and im not negotiating that by mapping up a few points on decel map as it would increase consumption and shoot flames all day long... Theese cars attract enough attention over here as it is from the cops and vehicle department....

cons:
OMP could fail, but im getting a brand spanking new one.





I went RA-adapter, standalone tank. In my mind, it was the safest for MY driving environment.

Tem120

iTrader: (5)

Continue to do both..

I eliminated mine and I dont regret it . as for decents where are you engine braking .

I dont know .. I didnt engine brake tomuch when I was in hilly areas

BUT another con of the OMP is that it only lubricates in a certain area . so if you have ever looked at a used housings you will see the areas directly under the omp injectors are shiny and less worn then the rest it does not lubricate evenly . BUT like he stated in long decel situation where car is not injecting fuel you have to either

A give it gas periodically to lubricate .

B let the car idle and use your brakes for deceleration so the car still gets lubricated


Both seems to be the best of both worlds . get lubrication regardless of situation , and if you premix you have the wider spread

Mitchocalypse

iTrader: (2)

If you're going down a hill or rev to high rpm and let off, just clutch in and use the brakes if needed. I don't see any reason for engine braking

Tem120

iTrader: (5)

I'm pretty sure for them its not about the braking , but the fact that they will have to rev match into the correct gear when you want to go . <-- if you dont mind doing the above . then premix is just fine ... just gotta remember to do that in order to lubricate the motor during descents

oyvindjs

iTrader: (4)

Here`s the thing....

In norway, we are tought from a very young age(passed from parents to kids) that engine braking is a life and death matter on the roads coming down from mountain passes, wich there is ALOT of over here...

THIS, is a normal and close to every week sight for alot of norwegians:






You cannot begin to comprehend how many accidents we see each year on these kinds of roads because people dont engine brake but uses the footbreakes all the time, overheating them and loosing brakes, causing accidents and deaths... ESPECIALLY by tourists. Hell, ive had to get out of the car and drive tourists car down theese passages myself noumerous times while a friend drives my car, cause they park their car in panic and blocks everyone...

As i said in my first post, ive chosen the oil delivery setup based on the the geography of witch our roads lie in.


And yes... they are an absolute BLAST to go fast in :P Bah, who needs stelvio pass :P

Kakashi07

iTrader: (3)

Lol I didn't expect the giant picture of Norway! I already premix and don't really have that much of a problem with adding in the oil whenever I fuel up. If I did decide to premix only is there anyway I can just leave the failing pump there and just electrically disconnect it and premix until I dig in to remove all the lines that is.

Evadrepus

iTrader: (3)

The Rotary Aviation adapter doesn't fit well with the stock twins. The oil return from the primary turbo hits the electrical connector for the OMP. Also, the heat shield on the OMP needs to be trimmed.

ondabirdhouse

iTrader: (26)

Having driven down some really fun hills/mountains I can say that engine braking is needed. I personally overheated my brakes (on my mustang) going down a mountain in a state park here in the US. Braking down hills really takes its toll on your pads/rotors and before you realize it you have no brakes. I would DO what Tem120 suggested and keep both for peace of mind.

Kakashi07

iTrader: (3)

I'm not running twins so that is not an issue. I have street ported motor with 3mm apex seals, 850cc primary/1600secondary injectors, running power FC. The big thing I want to know is if you premix is there a concern with clogging the fuel filter or injectors. I have an aftermarket filter so I don't want to have to constantly clean it. I live in southern GA so there is not much need for me to engine break much. My current pump is crapping itself so I would need to replace it but I don't really want to run both. Don't you think that is a bit over kill?