SP20 E10 fuel - Page 2

70NYD · 20-08-2010, 02:06 PM

Oh I c haha I get it now. The way understand it and im gonna start reffring to what fuel im talking about, e10 At best if tuned properly the engine will have the same economy as with rulp. But if you compare e10 in a properly tuned engine vs 95 or 98 in properly tuned engines as well (so not just putting them all in the same car but 5 identical cars each tuned to the fuel 91 95 98 e10, e85) e10 will be at best same economy/power as 91 but less than 95,98 but e85 will have most, but only a little better tha. 98, as it has much less energy so upping the comp only does so much. Boosted I'd say similar

NaughtyGT · 20-08-2010, 02:27 PM

from what I've read everywhere so far, the E85 can only be used on purpose-built modern engines &/or cars with factory specified/replaced fuel lines that will not corrode with it's use. Standard pump fuel lines & other fuel parts will corrode with it. Also. Same economy? I'm reading like 30% worse economy with E85 due to what you've explained. You have to burn heaps more E85 than regular RON fuels. Unless your talking about new cars designed for the fuel? Then I can see it all in comparison

chicaboo · 20-08-2010, 02:39 PM

When you talk about "tuning" a car for E10, do you mean having an aftermarket ECU in the car being tuned on the dyno for the E10 in the fuel tank? If this is the type of tuning you mean, it will take eleventy billion years to recoup your 4c discount at the pump after the initial outlay of the ECU and tuning... Assuming you could even tune a benefit from the E10!

As I said earlier, my Mazda2 had a sticker on the fuel flap saying it was e10 safe/ready/etc. Does this means it was tuned for it? I wouldn't say my Mazda2 was tuned for E10, or at least no more than any other mass production car would be. But maybe more so the loose tolerances manufacturers put in cars to allow the use of different types of fuels...

Which brings me to another point, why would the loose factory tune from Mazda give any preference towards E10 or PULP? Well, if there was no preference in the tune for any type of fuel, why did I get noticeably worse economy with E10? Given in normal everyday life you are more likely to get better fuel economy from PULP in cars designed to run on E10 and PULP, why would you even consider E10?

70NYD · 20-08-2010, 03:18 PM

Yes Gav I was talking about a already high comp engine being dyno tuned. I don't think that the factory ecu would have 2 maps Like they do for factory LPG dual fuel so all the e10 sticker means is marketing IMO. Ofcourse it won't run the same. And this is somewhat of topic. Point is the engine will b fine and if your car has a knck sensor and is running right you will get same out of your pocket in the end, the amount of extra fuel will balance the price of it sort of..

20-08-2010, 02:06 PM	#21
70NYD Veni, vidi, vici Join Date: Mar 2008 Location: Brisbane Car: 1996 BA Hatch & 2005 RX8 Posts: 4,911 View Photos By: 70NYD	Oh I c haha I get it now. The way understand it and im gonna start reffring to what fuel im talking about, e10 At best if tuned properly the engine will have the same economy as with rulp. But if you compare e10 in a properly tuned engine vs 95 or 98 in properly tuned engines as well (so not just putting them all in the same car but 5 identical cars each tuned to the fuel 91 95 98 e10, e85) e10 will be at best same economy/power as 91 but less than 95,98 but e85 will have most, but only a little better tha. 98, as it has much less energy so upping the comp only does so much. Boosted I'd say similar __________________

20-08-2010, 02:27 PM	#22
NaughtyGT Senior Member Join Date: Jun 2009 Location: Baxter, VIC Car: Sooby B4 - Astina SP parting out Posts: 2,447	from what I've read everywhere so far, the E85 can only be used on purpose-built modern engines &/or cars with factory specified/replaced fuel lines that will not corrode with it's use. Standard pump fuel lines & other fuel parts will corrode with it. Also. Same economy? I'm reading like 30% worse economy with E85 due to what you've explained. You have to burn heaps more E85 than regular RON fuels. Unless your talking about new cars designed for the fuel? Then I can see it all in comparison __________________ My Shepherds in the Avatar haha "When the power of love overcomes the love of power, the world will know peace" - Jimi Hendrix

20-08-2010, 03:18 PM	#24
70NYD Veni, vidi, vici Join Date: Mar 2008 Location: Brisbane Car: 1996 BA Hatch & 2005 RX8 Posts: 4,911 View Photos By: 70NYD	Yes Gav I was talking about a already high comp engine being dyno tuned. I don't think that the factory ecu would have 2 maps Like they do for factory LPG dual fuel so all the e10 sticker means is marketing IMO. Ofcourse it won't run the same. And this is somewhat of topic. Point is the engine will b fine and if your car has a knck sensor and is running right you will get same out of your pocket in the end, the amount of extra fuel will balance the price of it sort of.. __________________ Last edited by 70NYD; 20-08-2010 at 03:24 PM.

20-08-2010, 02:39 PM	#23
chicaboo Senior Member Join Date: Sep 2004 Location: Logan prefecture Car: Touge monster Posts: 7,585	When you talk about "tuning" a car for E10, do you mean having an aftermarket ECU in the car being tuned on the dyno for the E10 in the fuel tank? If this is the type of tuning you mean, it will take eleventy billion years to recoup your 4c discount at the pump after the initial outlay of the ECU and tuning... Assuming you could even tune a benefit from the E10! As I said earlier, my Mazda2 had a sticker on the fuel flap saying it was e10 safe/ready/etc. Does this means it was tuned for it? I wouldn't say my Mazda2 was tuned for E10, or at least no more than any other mass production car would be. But maybe more so the loose tolerances manufacturers put in cars to allow the use of different types of fuels... Which brings me to another point, why would the loose factory tune from Mazda give any preference towards E10 or PULP? Well, if there was no preference in the tune for any type of fuel, why did I get noticeably worse economy with E10? Given in normal everyday life you are more likely to get better fuel economy from PULP in cars designed to run on E10 and PULP, why would you even consider E10?