fuel oil ratios
#1
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fuel oil ratios
I recently brought a mazda rx7 with a 12a bridgeport
The previous owner removed the oil injection system on it and said to premix the oil with the petrol in the tank, does anyone know what the petrol-oil ratio it should be?
The previous owner removed the oil injection system on it and said to premix the oil with the petrol in the tank, does anyone know what the petrol-oil ratio it should be?
#3
Got Boost?
Between 100:1 and 150:1 should be fine for a street car. You can add more oil if you race, but it will probably smoke. I typically use 128:1 because its easy to remember - one oz for every gal of gas.
#4
Old [Sch|F]ool
One time I dumped a quart of motor oil in with 10 gallons (that is 40:1!) because I forgot to buy two stroke oil. Didn't smoke. Then again, who's to say the oil actually dissolved in the fuel... Ehh. I drove for 2000mi with no OMP or premix with no ill effects. Then I realized the problem and started premixing. (Who knows how long the previous owner drove it like that!)
When I would remember, I'd just add one 8oz bottle for every 10 gallon tank. Add it first so the fuel going in gives a mixing action. If you have an '81-85 car then you have a larger tank and you might want to dump in say one 16 ounce bottle.
Aw crap, just realized... Metric. The 100-150:1 range is just peachy. For reference, the stock OMP injects anywhere from 400:1 to 150:1 depending on load, although it is recommended to increase the rate as you bring power (revs) up.
When I would remember, I'd just add one 8oz bottle for every 10 gallon tank. Add it first so the fuel going in gives a mixing action. If you have an '81-85 car then you have a larger tank and you might want to dump in say one 16 ounce bottle.
Aw crap, just realized... Metric. The 100-150:1 range is just peachy. For reference, the stock OMP injects anywhere from 400:1 to 150:1 depending on load, although it is recommended to increase the rate as you bring power (revs) up.
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