GTSBoy Posted August 24, 2014 Share Posted August 24, 2014 No. Not true. Simply because the engine would have to built with stratospheric static compression and lots of boost to have a hope of needing all the knock resistance of normal E85 anyway. Not more than 0.01% of engines running around on E85 would be built even half that hard. Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7372830 Share on other sites More sharing options...
XKLABA Posted August 26, 2014 Share Posted August 26, 2014 Ok so I have 9.53:1 static comp in my 2630 and pumped 28psi in to it so far, would I get any benifit from it Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7374507 Share on other sites More sharing options...
r32-25t Posted August 26, 2014 Share Posted August 26, 2014 Probably not Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7374570 Share on other sites More sharing options...
jjman Posted August 27, 2014 Share Posted August 27, 2014 So this then begs the question, what is the point of all of this octane rating in these fuels? Obviously I get the E85 thing but to be doing a 107 octane version of it- why? Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7374869 Share on other sites More sharing options...
Piggaz Posted August 27, 2014 Share Posted August 27, 2014 Marketing, I'd bet. "I run the fuel the V8 supercars run on"... 2 Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7374876 Share on other sites More sharing options...
GTSBoy Posted August 27, 2014 Share Posted August 27, 2014 Marketing and profit margin. There is so little hydrocarbon in E85 that the marginal cost difference to the supplier is only about 15% of the marginal cost difference between 91 and P98. Yet they can probably charge ALL of the retail price difference between 91 and P98 when applying the marketing spin to E85 and 107octane E85. 6 times the extra profit makes it worth refining a little extra P98 to go into it. 1 Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7374890 Share on other sites More sharing options...
mattie4270 Posted September 7, 2014 Share Posted September 7, 2014 Just run Caltex Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7384206 Share on other sites More sharing options...
jay-rod Posted September 16, 2014 Share Posted September 16, 2014 No caltex in WA my friend 1 Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7390443 Share on other sites More sharing options...
discopotato03 Posted September 17, 2014 Share Posted September 17, 2014 Maybe the theory of "under octane" ULP in the E85 is not a theory and they prefer to use a more highly refined dino like 98ULP . I think ultimately E85 or similar is only ever going to get mainstream acceptance when you can prove to people that it works consumption wise , and to achieve that you need engines with high compression ratios . How you get around NOx emissions I don't know but I have read that direct injection engines gain more from evaporative in cylinder cooling so the higher a fuels octane the better assuming it doesn't get harder to light off like high octane petrol does . A . Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7391235 Share on other sites More sharing options...
camoo Posted September 21, 2014 Author Share Posted September 21, 2014 so just a bit of an up date on using the green 107 octane. tested it and has the same ethanol content, so in the tank it goes. Went for a 10 minute drive and parked up. Started it up and it now runs like crap..... Maybe, probably a coincidence..... but yeh..... my car didnt like it very much.... Also ive eliminated most other possible causes of my car running like crap, dosnt mean it is the fuel though. Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7393848 Share on other sites More sharing options...
scotty nm35 Posted September 22, 2014 Share Posted September 22, 2014 I doubt it's the fuel, I have run 10 odd tanks through mine. What interests me is there may be e85 near Albury? Where do you buy from Cam? Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7394313 Share on other sites More sharing options...
gtr jet Posted September 22, 2014 Share Posted September 22, 2014 Good question. I thought the furthest E85 north bound was around Broady or somewhere. Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7394348 Share on other sites More sharing options...
camoo Posted September 29, 2014 Author Share Posted September 29, 2014 Unfortunately fuel was not purchased near albury. Did a run to Melbourne and filled up a barrel Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7398961 Share on other sites More sharing options...
STATUS Posted September 29, 2014 Share Posted September 29, 2014 It's not an issueswapping between tge two fuels. If the car is tuned right it should be able to go from 70 to 90% ethanol without any damage even at a track on either 105 or 107 . It comes down to knowing what you are running % wise whilst tuning and factoring in possible changes. 1 Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7399098 Share on other sites More sharing options...
discopotato03 Posted October 3, 2014 Share Posted October 3, 2014 My car doesn't seem to like the later E85 either , it acts like its running slightly lean and is more difficult to start - consumption noticeably worse . I'm going back to EFlex for a while to see if it improves things . A . Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7401146 Share on other sites More sharing options...
scotty nm35 Posted October 3, 2014 Share Posted October 3, 2014 You are probably blaming the fuel for another issue. Pressure test your pipes again disco. Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7401506 Share on other sites More sharing options...
k_d Posted October 3, 2014 Share Posted October 3, 2014 I have found 107 needs a different coldstart map to the normal stuff. Aside from that havnt found much difference at all (will do back to back testing on a dyno in afew weeks). Was the same starting problem on 3 different cars when tuned on normal e85 then run on 107 (107 only recently became available at my local). Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7401588 Share on other sites More sharing options...
discopotato03 Posted October 5, 2014 Share Posted October 5, 2014 Yep I was having starting issues and got sick of the increased consumption . My local EFlex servo is getting cheap ATM so that's what I'll stock up on . Starts are much better but need to get finger out and retune the cold and hot starts because they've gotten really rich . $1.16.9/L acceptable , cheers A . Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7402503 Share on other sites More sharing options...
discopotato03 Posted June 1, 2015 Share Posted June 1, 2015 Current brew is a 50/50 mix of E85 Lime and 98ULP . My engine was getting rough on E70 and I was beginning to wonder about the gum gunge some people get on their injector tips when using high eth fuels . I did use that ethanol fuel conditioner for a time but ultimately it didn't change the rough running much . I started blending more ULP into the Eflex to get acceptable consumption and picked up 30L of green E85 for a 50/50 mix - as easy as splash blending gets . Results look pretty good so far with power and general consumption . I suppose the octane would be around 102-103 which isn't far short of the old E85 but 57% of the fuel is now PULP which gives better consumption than 85% ethyl alcohol . The down side is that Uniteds Green gut rot is a bit exy . A . Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7543484 Share on other sites More sharing options...
RBrennan25 Posted June 1, 2015 Share Posted June 1, 2015 Interesting discussion. I find it interesting that people are getting higher consumption from the 107 as well. My car was tuned on the 107 and I get very slightly better economy when I use it vs EFlex, granted I'm talking maybe 20-30ks per tank more, certainly not enough to offset the higher costs of united. The car also feels the tiniest bit more responsive on the extremely low rpm as well with the united, like before around 2000rpm it seems smoother to take off from the lights or whatever. No idea if there is a reason for that or if its in my head. Either way I just fill up with whatever I'm closest to when I need fuel, doesn't make much difference except price Link to comment https://www.sau.com.au/forums/topic/447142-united-regular-e85-and-107-e85/page/2/#findComment-7543595 Share on other sites More sharing options...
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