WYO_LGT05 Posted May 11, 2010 Share Posted May 11, 2010 Wanting to get an E-85 tune done. The dude that's going to tune my car says i only need a bigger fuel pump and I'm set for the tune. I'm confused because I'm thinking i need bigger injectors, new fuel lines. anyone done this before? Link to comment Share on other sites More sharing options...
Balrock Posted May 11, 2010 Share Posted May 11, 2010 You need a larger pump AND injectors....generally 850's at a minimum people say. 740's will work, but you will not get the full out of it. For me that is good since I just want a little extra kick, not the full effect I guess you could say. Link to comment Share on other sites More sharing options...
WYO_LGT05 Posted May 11, 2010 Author Share Posted May 11, 2010 have you done this tune? Link to comment Share on other sites More sharing options...
Infamous1 Posted May 11, 2010 Share Posted May 11, 2010 You may need rethink who your having tune your car. Even running WG spring pressure up top you will likely max out the stock injectors. You do not need new lines but injectors are definately needed. I have tuned many E85 powered LGT's, stock turboed and big turbo setups. Link to comment Share on other sites More sharing options...
WYO_LGT05 Posted May 11, 2010 Author Share Posted May 11, 2010 ok ill go with the bigger injectors. 850cc. being that im upgrading turbo next summer after tranny build, thanks infamous Link to comment Share on other sites More sharing options...
WYO_LGT05 Posted May 11, 2010 Author Share Posted May 11, 2010 this is the place i dyno's my car car at and was told that all i needed was the pump http://theboostcreepltd.com/ Link to comment Share on other sites More sharing options...
Infamous1 Posted May 11, 2010 Share Posted May 11, 2010 Well I see they're in CO, but what is your elevation? Link to comment Share on other sites More sharing options...
WYO_LGT05 Posted May 11, 2010 Author Share Posted May 11, 2010 Cheyenne, WY, 6,062 Ft Link to comment Share on other sites More sharing options...
Legend Posted May 11, 2010 Share Posted May 11, 2010 this is the place i dyno's my car car at and was told that all i needed was the pump http://theboostcreepltd.com/ That is an excellent shop! Great choice. Harvey will take good care of you. I don't think you'll be able to get away with the stock injectors, but maybe he knows something I don't. I just did a quick calculation and think a stock turbo at 5200-6000ft needs 600-630cc/min and the stockers are 550, I believe. You should change the injectors NOW instead of later if you have plans to go any bigger at all. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
Infamous1 Posted May 11, 2010 Share Posted May 11, 2010 Cheyenne, WY, 6,062 Ft Well I take my comments back. At that elevation you could actually make the stock injectors work but you wouldn't be getting the full potential for sure. Link to comment Share on other sites More sharing options...
WYO_LGT05 Posted May 11, 2010 Author Share Posted May 11, 2010 yes Harvey is the guy i talked to. says hes tuned over like 3000 subi's that's crazy! im going to upgrade to 850 before i get the tune just to be safe it cant hurt. were u from legend? Link to comment Share on other sites More sharing options...
m sprank Posted May 11, 2010 Share Posted May 11, 2010 For the price the 1000's are the hot ticket. They are only a few bucks more and give you the headroom for all kinds of turbos. Mine are on the way now. Don't buy injectors 3 times like me. Just get the BIG ones right away, lol. Link to comment Share on other sites More sharing options...
Infamous1 Posted May 12, 2010 Share Posted May 12, 2010 For the price the 1000's are the hot ticket. They are only a few bucks more and give you the headroom for all kinds of turbos. Mine are on the way now. Don't buy injectors 3 times like me. Just get the BIG ones right away, lol. Thats for topfeeds, 1000cc sidefeeds are ALOT more. Link to comment Share on other sites More sharing options...
dr_sharp Posted May 12, 2010 Share Posted May 12, 2010 Do injectors, pump, and lines all need to be rated for E85? Or does everyone just take that 'chance' and hope that the seals/gaskets/etc. can withstand the more corrosive fuel? lol Link to comment Share on other sites More sharing options...
Legend Posted May 12, 2010 Share Posted May 12, 2010 WYO_LGT05 - I'm about 20 minutes south of Boost Creep. He did the original tune on my car in his old shop. Very good guy and easily the best in Colorado. I'll head back for another dyno run once I finish my next setup. Harvey loves the ID1000's... he'll probably push for those...AND the topfeed conversion. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted May 12, 2010 Share Posted May 12, 2010 Do injectors, pump, and lines all need to be rated for E85? Or does everyone just take that 'chance' and hope that the seals/gaskets/etc. can withstand the more corrosive fuel? Everything is already designed for ethanol in the fuel. Because there is already ethanol in most US fuel. Take a look at the many years of history of E85 use on NASIOC. There can be issues in specific instances, i.e. don't put water in your fuel tank E85 is arguably safer and better for the engine than gasoline. Where you can get into trouble though is introducing aftermarket components into the fuel system, such as Knock-off fuel filters, brass fittings, and other junk that is 100% due to lack of buyer research. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
dr_sharp Posted May 12, 2010 Share Posted May 12, 2010 But the amount of ethanol in current fuel is on the order of 10-15%. E 85 is... 85% ethanol, a much stronger and more corrosive mixture. While I can believe that components are designed for some ethanol, I don't believe that they are designed for that level of ethanol, unless of course the components are perhaps used in flex-fuel vehicles or are otherwise designed to be used with a variety of fuels, which as far as I know, Subaru does not take part in. The most conclusive argument is the history of use with E85 in these engines, but how many data points are acutally out there is an unknown. Furthermore, of the limited dataset, how many have had some type of problem and attributed it to another component failure, rather than the fuel system? Don't get me wrong, I sway heavily toward believing that these fuel system can tolerate E85, I had just hoped for a more conclusive yes other than "believe it because we did it" lol Link to comment Share on other sites More sharing options...
johnAWD Posted May 12, 2010 Share Posted May 12, 2010 You may need rethink who your having tune your car. Quoted for truth. Consider the fact that a motor burning e85 consumes about 1/3 more fuel per cycle than one burning gasoline. Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted May 12, 2010 Share Posted May 12, 2010 But the amount of ethanol in current fuel is on the order of 10-15%. E 85 is... 85% ethanol, a much stronger and more corrosive mixture. While I can believe that components are designed for some ethanol, I don't believe that they are designed for that level of ethanol, unless of course the components are perhaps used in flex-fuel vehicles or are otherwise designed to be used with a variety of fuels, which as far as I know, Subaru does not take part in. The most conclusive argument is the history of use with E85 in these engines, but how many data points are acutally out there is an unknown. Furthermore, of the limited dataset, how many have had some type of problem and attributed it to another component failure, rather than the fuel system? Don't get me wrong, I sway heavily toward believing that these fuel system can tolerate E85, I had just hoped for a more conclusive yes other than "believe it because we did it" Ethanol does not become more corrosive in larger ratios. It's not like you pass a magic E30 amount and suddenly the system will see corosion. It will happen faster with more ethanol, but that requires there to be something to corrode in the first place. Fact is hotrod has been running ethanol mixtures for half a decade with no issue. I respect that you are looking for theoretical absolutes here, but in most cases people only have theoretical support and no real world testing. Thousands of guinea pigs have tested E85 in gasoline cars, and have shown that the corrosion concern, though valid, is completely overblown. Consider that E10 for 100,000 miles shows zero corrosion... seeing ethanol the whole time... Don't add water into your fuel tank and you will be fine [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
Wang Lung Posted May 13, 2010 Share Posted May 13, 2010 No water?!?!?! Shucks!! Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted May 13, 2010 Share Posted May 13, 2010 No water?!?!?! Shucks!! Redneck water injection FTL [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
WYO_LGT05 Posted May 13, 2010 Author Share Posted May 13, 2010 hmm 1000cc i dont know, once i get closer to doing all of this ill contact harvey and discuss everything with him as far as future mods and what im looking for down the road Link to comment Share on other sites More sharing options...
m sprank Posted May 13, 2010 Share Posted May 13, 2010 750 will get you by for now. 850 will allow you to maximize top end with a larger turbo. 1000 will give you headroom for just about everything. The cost of 1000 is about $50 more than 850. For the $50... I bought 650. Too small sold them Went to 750. Fine on pump gas but limiting boost up top on e85. Rather than get the 850 and then be unhappy at some point, I spent the extra $50 and went for the 1000. I am now on my 3rd set of aftermarket injectors because I keep getting power hungry. You know you want the power, just get the injectors that will hold your wildest dreams. Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted May 13, 2010 Share Posted May 13, 2010 hmm 1000cc i dont know, once i get closer to doing all of this ill contact harvey and discuss everything with him as far as future mods and what im looking for down the road Some say the T1 Bosch 1000cc sidefeed to top feed conversion kit idles better than stock . Just because you don't need them doesn't mean they aren't the best choice if you do decide to upgrade either way. They aren't as simple as swapping sidefeed injectors though... But my mom's cheap 97 camry idles so smoothly she often forgets it's running if she runs into and out of a store real quick. Some like to pay more for that kind of small luxury on their LGT too, though you can only improve it so much... [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
WYO_LGT05 Posted May 13, 2010 Author Share Posted May 13, 2010 well i know for a fact im going to get the 850 before the mod. ill worry about 1000cc later,but you are right sprank im just going to want more power lol Link to comment Share on other sites More sharing options...
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