Premix Advice
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Premix Advice
Hey Guys Howsit?
Just wanted of your opinions on whether i should run premix, not in the general sense like when people removed their oil injection but more as a safety thing i guess. A couple of weeks ago a mate of mine bent and toasted some seals in his FD by not running the right amount of premix over many thousands of kms whether or not that was the actual cause it got me thinking as im just about to go have my FC tuned in the next few weeks and its running the factory oil injection with 15w50 performance mineral weight oil in the sump but because im expecting to put around 300kw at the wheels im wondering if the factory oil injection was ever designed to keep up with this power level which is why i was considering running a lite premix to help or encase **** happens, if it is a good idea what ratio of premix should i run i plan to use the band Motul.
Thanks
Just wanted of your opinions on whether i should run premix, not in the general sense like when people removed their oil injection but more as a safety thing i guess. A couple of weeks ago a mate of mine bent and toasted some seals in his FD by not running the right amount of premix over many thousands of kms whether or not that was the actual cause it got me thinking as im just about to go have my FC tuned in the next few weeks and its running the factory oil injection with 15w50 performance mineral weight oil in the sump but because im expecting to put around 300kw at the wheels im wondering if the factory oil injection was ever designed to keep up with this power level which is why i was considering running a lite premix to help or encase **** happens, if it is a good idea what ratio of premix should i run i plan to use the band Motul.
Thanks
#2
Rotary Freak
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A bit of 2-stroke oil in the fuel doesn't hurt, especially if you are at that power level. But I believe that when you add oil to the fuel the octane rating is reduced. So a "bit" might be a few ounces per tankful. Good idea to do the final tuning with the fuel/premix ratio that you expect to run on a daily basis.
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#9
mmm doritos
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and you most deff do not have to pull the motor to remove the OMP just search the forum and buy a block off plate. its very easy to do..
#10
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I run 1 oz per gal. I don't think thats too much. Get rid of the omp. If you have a s5 get a rtek chip and get rid of the omp. I just don't trust them as our cars are getting older.
Last edited by George84; 02-16-09 at 09:57 PM.
#11
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Pre-mix, lol. I pre-mixed my old s4, one day I was at the gas station adding my two stroke before putting gas in and got rolled on by a chp. He was convinced I was adding "jet fuel"! No joke. Took me 40 minuted and a haynes manual to keep my car from getting towed.
But I agree with those above, while it may be a pain in winter when you can't feel your finger tips, pre-mix all the way.
But I agree with those above, while it may be a pain in winter when you can't feel your finger tips, pre-mix all the way.
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I have used 1 quart TCW-3 every time I fill my gas tank up, and I use my OMP...I run low 14s all day long on street tires and my engine doesn't smoke, unless I am running over 7500 rpms. and then it stops smoking within 2 seconds.,.I also have over 150,000 on same engine. I also run N.O.S. change oil every 1000 miles and still starts right up. runs perfect like brand new.
#16
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I still have a working OMP, I think. (No idea if all 4 lines are good) Aside from it maybe being a waste of money, is there any harm in using a half a bottle per full tank? That's about 1.2 oz per gallon or 107:1. (I use a lot more in my 2-stroke engines without any problem, but they don't have apex seals) I also don't mind using premium if the oil affects the octane rating. My engine has 117k (still healthy) and I'd like it to last as long as possible. Thanks!
#17
wouldnt 5 oz to a full tank pretty much be 1 oz per gallon?? or really close for the working omp??
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#23
The Silent but Deadly Mod
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128 fluid ounces in 1 gallon right? (8 fl oz. in a cup, 2 cups in a pint, 2 pints in a quart, 4 quarts in a gallon, 8 x 2 x 2 x 4 = 128)
When your friend says he's running a ratio of 100:1, he's most likely running a ratio or 128:1, unless he's putting in exactly 1.28 oz of premix for every gallon, that 1.28 oz of premix per gallon being a 100:1 ratio. 100 parts fuel, 1 part premix.
I doubt it, he's probably putting in 1 oz. per gallon, like the rest of the normal folk, which is a ratio of 128:1.
so for 3 - 5 oz per tank, just figure out what a tank is. For simplicity's sake, use S5 fuel tank, since that's what I'm running. 128 * 18.5 / 3 ~ 789, 128 * 18.5 / 5 ~ 474.
The ratio I'm suggesting (and have run in the past) is 474:1 to 789:1, which is about 1 oz of premix per 4 to 6 gallons of fuel (Or for simplicity's sake, 400:1 to 600:1), if you have a working OMP.
300:1 is still too rich of premix, though it's probably not going to hurt you.
BTW, dividing by 128 is a bitch.
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hi guys,
what hapens if i fit a kit instead the omp and disconnevt the harness? will the ecu return an error code ? i run the stock ecu and i am afraid that if i remove the omp the ecu will return an error and go to safe mode with loss of power. is that correct?
thanks!
what hapens if i fit a kit instead the omp and disconnevt the harness? will the ecu return an error code ? i run the stock ecu and i am afraid that if i remove the omp the ecu will return an error and go to safe mode with loss of power. is that correct?
thanks!