В Джорджия нещата са по-нормални:
https://e85prices.com/georgia.htmlЕ85 е около 2.10$, Е10 е около 2.70$.
94 стотинки за литър вече е приятно. Но там и бензина е евтин. При 1.21 лева за литър Е10, разликата е точно колкото е разликата в разхода.
Torque takes the lambda measurement and then applies stoich calculations based off of settings in the profile of your vehicle. You can choose your gas type. I wish I could just see lambda, I'd rather see that due to fuel mixing but since they're calculating off of lambda as long as you know the numbers you're expecting you're good.
Another explanation:
The best ratio for gas mixture is 14.7 parts air to 1 part fuel.
The best ratio for e85 mixture is 9.8 parts air to 1 part fuel.
The O2 sensor does not know how much air or fuel you started with. It only knows oxygen levels left in the spent charge. The O2 sensor reports in terms of lambda. If the lambda value is 1.0, the fuel is burned optimally, and started with the right mix. Whether you start with gas at 14.7:1 or e85 at 9.8:1, the lambda will be the same at the O2 sensor.
When you see a value reported from a wideband, the value is typically converted to a gas equivalent AFR. Some widebands (like the PLX) will let you change the display and show lambda, or show ethanol-equivalent AFR's. So, let's say your wideband is set to show gas equivalent AFR, but you are running e85. Cruising around, the display will show 14.7:1. This means the lambda is 1.0, and in reality your e85 mix is 9.8:1. When you go WOT, the wideband display shows 11.76:1. This means your lambda is .80, and if you are running e85, the actual mix was 7.84:1.
More info:
http://www.hotrod.com/techarticles/engine/1307_wideband_oxygen_sensor/This table is what is important notice the Lambda of max power rich and lean of the various fuels. It varies but I personally tune for around .80 Lambda and then add fuel if we see knock. Around here it's very easy to knock on 91 octane so richer is better to an extent. With E85 or E85 mixing the ethanol heat removing properties helps immensely to stop knock. This is why both my Flex and V are running around at approximately 26-28 degrees of timing at WOT, can't even consider that on gas and meth injection.
Air/Fuel (A/F) Ratios of Common Fuels
Малко данни:
Fuel A/F Lambda (λ)
Pure Gasoline Stoichiometric 14.7 1.000
Pure Gasoline Max Power Rich 12.5 0.8503
Pure Gasoline Max Power Lean 13.23 0.900
E10 Stoichiometric 14.08 1.000
E10 Max Power Rich 12.0 0.8523
E10 Max Power Lean 12.7008 0.9020
E15 Stoichiometric 13.79 1.000
E15 Max Power Rich 11.75 0.8521
E15 Max Power Lean 12.4362 0.9018
E85 Stoichiometric 9.765 1.000
E85 Max Power Rich 6.975 0.7143
E85 Max Power Lean 8.469 0.8673
Ethanol Stoichiometric 9.0078 1.000
Ethanol Max Power Rich 6.429 0.7137
Ethanol Max Power Lean 7.8 0.8659
Methanol Stoichiometric 6.45 1.000
Methanol Max Power Rich 4.0 0.620
Propane Stoichiometric 15.7 1.000
Propane Max Power Rich 13.18 0.8395
Източник:
https://www.ecoboostperformanceforum.com/index.php?topic=354.90SHO съща е flex fuel...
Освен това, с този двигател вече се усеща разликата, 0.4 секунди по-добро време на драг без специален софтуер...
Гост