Premixing
02-18-2004, 01:21 AM
#1
Member
Thread Starter
Join Date: Feb 2004
Location: Tulsa, Ok
Posts: 51
ok I read two full pages about premixing over at rx7club.com and I am lead to believe that premixing is prolly better for me cause I dont really know a lot about this car yet and if the OMP goes out I am screwed. what I was wondering is how to I block off the OMP *DISABLE* and what is the best two cycle oil IYHO. some people are saying that TC-w3 I think is what its called is the best stuff to use. and other are saying that a synthic 2 stoke is better, but I thought a syn. is bad cause it doesnt burn clean. I have an 85 and they said I should use 16oz ever time I fill up. somebody also said something about 50:1 two stroke and 100:1 two stroke... what is the better to use
02-18-2004, 03:30 AM
#3
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Join Date: Dec 2002
Location: Perth, Western Australia
Posts: 1,788
Heres some info I pulled from another thread
News Update:
If your car only sees normal road type RPM then 150:1 to 180:1 is very sufficient, much richer and you'll keep fouling plugs after any prolonged 2-3K rpm usage, ie: an hour's constant driving.
Use 100:1 if the motor is going to be seeing prolonged 8000rpm+ usage, ie: PP race motor. if you see a bit of both, go somewhere in the middle
If your car only sees normal road type RPM then 150:1 to 180:1 is very sufficient, much richer and you'll keep fouling plugs after any prolonged 2-3K rpm usage, ie: an hour's constant driving.
Use 100:1 if the motor is going to be seeing prolonged 8000rpm+ usage, ie: PP race motor. if you see a bit of both, go somewhere in the middle
02-18-2004, 06:58 AM
#4
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Join Date: Apr 2002
Location: Bay Area, California
Posts: 250
the old IMSA guys does 120:1, its all depends on the owners. If you rebuild your own engines, you can figure out how much to use after a few tear down. I drive my car on the street, and weekend track events. 120:1 is about right for my FD, with the OMP removed.
02-18-2004, 10:57 AM
#5
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Join Date: Sep 2002
Location: Lynnhood, WA
Posts: 40
i talked to donnie at hayes one day about premix and omp action. he said that it's real rare that an engine dies 'cause of a failed OMP; they're very reliable parts. he also mention that there's nothing really wrong with premix, but (at least as respects my old 83 gsl) not only can it foul spark plugs, it can also cause problems with your fuel filter.
02-18-2004, 07:44 PM
#6
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Thread Starter
Join Date: Feb 2004
Location: Tulsa, Ok
Posts: 51
Originally Posted by drifter' date='Feb 18 2004, 01:30 AM
Heres some info I pulled from another thread
02-19-2004, 01:55 AM
#7
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Join Date: Dec 2002
Location: Perth, Western Australia
Posts: 1,788
Originally Posted by Static' date='Feb 19 2004, 09:44 AM
when you say all of these 180:1 and 100:1 stuff is that like when you go buy two stroke I should look for 120:1 or something like that or is it how much you put in.. I drive pretty hard on the streets not quite the drag hard but not far off from it. you guys think I should use more then 120:1
120:1
means 120 parts fuel to 1 part oil
