Digging up the oil debate again!! - Two Stroke Stuff...

stylus350 · December 19, 2006, 05:14:53 PM

I was told my OMP has been modified. I dont know how but if I ever get hold of JayDee i will ask him! Can I run a premix and OMP?

BlitzBoy · December 19, 2006, 07:47:37 PM

Quote from: stylus350Can I run a premix and OMP?

Yes you can, do a 250 to 1 ratio which is not overkill.

CraigN · December 20, 2006, 08:57:36 AM

how do you tell if you have an OMP silly question i know

my car has all manner of mods, i find new ones everyday :Hammer

memski · December 20, 2006, 09:27:58 AM

The omp is found in front of the primary turbo oil drain on the block (with lines leading up to the injectors beneath the inlet). More than likely you still have it because your engine would\'ve gone kaput from lack of oil (presuming you dont add 2stroke). Best bet is to take a pic from the turbo area and let someone here tell you.

88GT-R · December 20, 2006, 05:22:34 PM

A fully synthetic 2 stroke is the way to go. I also recommend running a 400:1 mix in conjunction with the standard omp. I run some very special stuff in my RE.....

stylus350 · January 02, 2007, 12:08:33 AM

Hi again. Hope everyone had a nice new year.

I have probably decided to run a premix and OMP if there is no negative effects. I just wanted to know if there were any more sudgestions as to what ratio to run, and if it needs remapping for it. Oh and if any one knows JayDee can you ask him if my OMP is modified? (Tys car).

Thanks.

88GT-R · January 02, 2007, 10:38:05 AM

If you are running premix in the fuel, in conjunction with the omp system, 400:1 is spot on. This equates to 40L petrol : 100ml 2 stroke.

Cheers,
John

Prof · January 02, 2007, 11:46:09 AM

Some follow on questions for whoever:

1) Running the premix with OMP - will 400:1 be enough to protect against OMP shortfall / failure ?

2) Is there a way of telling easily (and quickly) if the OMP has failed ? waiting for the engine to die isn\'t really an option

I want to consider, and whilst I know the OMP has a postion sensor that the ECU reads to check the stepper motor moved (failure only shows up if you read the diag codes off), there is no guarantee the oil got injected (blocked injector) or the feed to the OMP was ok in the first instance. Any ideas greatly received...

Red and Single · January 02, 2007, 12:17:34 PM

I am suspicious of my OMP as it leaks quite badly, so I run premix as a safety measure till I can get the thing removed altogether.

I run 150:1

elford_tim · January 02, 2007, 12:20:10 PM

Quote from: Prof2) Is there a way of telling easily (and quickly) if the OMP has failed ? waiting for the engine to die isn\'t really an option I want to consider, and whilst I know the OMP has a postion sensor that the ECU reads to check the stepper motor moved (failure only shows up if you read the diag codes off), there is no guarantee the oil got injected (blocked injector) or the feed to the OMP was ok in the first instance. Any ideas greatly received...

Dunno about the OMP but David @ RoTechniks described to me how they tested my oil injector setup when I complained that my convertible wasn\'t using enough oil. Won\'t post the details here as I only have his explanation and I wouldn\'t want to give out wrong descriptions because I may have misunderstood something. Basically it involves introducing a little bit of air into the oil feed lines - if the OMP is working OK you can see the bubbles moving.

That test seems to have been successful enough to cost me three new oil injectors

. Wish I\'d run a very mild pre-mix in that car.

88GT-R · January 02, 2007, 01:41:27 PM

Quote from: ProfSome follow on questions for whoever:

1) Running the premix with OMP - will 400:1 be enough to protect against OMP shortfall / failure ?

2) Is there a way of telling easily (and quickly) if the OMP has failed ? waiting for the engine to die isn\'t really an option I want to consider, and whilst I know the OMP has a postion sensor that the ECU reads to check the stepper motor moved (failure only shows up if you read the diag codes off), there is no guarantee the oil got injected (blocked injector) or the feed to the OMP was ok in the first instance. Any ideas greatly received...

400:1 won\'t protect the engine from omp failiure, but it will give the engine a barrier should any part of the omp system fail. Might buy the engine time enough for you to realize that oil feed is down.

Prof · January 02, 2007, 01:50:21 PM

Seems like a good move to do this anyway then. I will also be running higher than stock power, so unless I can change the oil pressure (Racing Beat have a higher pressure regulator for the sump), I will need to assist the OMP anyway.

Seems visual inspection of the injectors then.

stylus350 · January 02, 2007, 06:01:39 PM

Thanks for the replies. I shall nip in to halfrauds this week to see what they stock.

On the \'is my OMP working\' question. If any one has a way to test this that could be made into a sticky I am sure it would be a usefull tool for putting minds at rest.

Also - how easy is it to disconnect the OMP? If its easy then a change to premix would take all the guesswork out of the equation. I can see this becoming a more and more popular route to take.

richard cash · January 05, 2007, 04:09:26 PM

also, how do people apply this. Im guessing at the petrol station but before or after the fuels gone in.

oldone · January 05, 2007, 04:46:57 PM

Quote from: richard cashalso, how do people apply this. Im guessing at the petrol station but before or after the fuels gone in.

I use a lil 500ml bottle,which is marked in increments of 100ml.....so its a matter of oil in,fuel in !!!!:yes :guinness

Digging up the oil debate again!! - Two Stroke Stuff...

88GT-R

88GT-R

88GT-R

oldone