el-dub801 Member 44 Member For: 12y 8m 7d Gender: Male Location: Wollongong Posted 18/04/14 06:01 AM Share Posted 18/04/14 06:01 AM Hi all,Im pretty sure this has been asked before (sorry to moderators for not being thorough enough), but what sort of kW gains can I expect after getting a tune put in my car while running it on eflex? I'm hearing figures that sound untrue (like 50+kw gains)I have a BF II XR6T with Process West TB relocate, piping, PW front mount, Hi-flowed gt35/40r, PW surge tank and 044 pump, Cold air intake soon to be replaced with a race box - tuned to 350rwkw. ZF is about to be rebuilt and im thinking that converting the engine to e85 full time could be the go to squeeze a few extra kW out of her while its in getting the box done.Feel free to let me know what you guys think.... Link to comment Share on other sites More sharing options...
el-dub801 Member 44 Member For: 12y 8m 7d Gender: Male Location: Wollongong Posted 18/04/14 06:07 AM Author Share Posted 18/04/14 06:07 AM To add to my post, is Caltex E-Flex in the same category as the e85 everyones talking about?Cheers, Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 18d Gender: Male Location: @ my laptop Posted 18/04/14 06:11 AM Share Posted 18/04/14 06:11 AM it has been posted before that Caltex Eflex has remained a constant ethanol content s far but they advertise it as a variable so it is possible at some stage this will vary and this could affect your car badly if tuned for say E85 and then it went to 70%, United E85 is pretty consistent around 82-85% Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 7m 11d Gender: Male Location: Central Coast Posted 18/04/14 06:28 AM Share Posted 18/04/14 06:28 AM United e85 I go from 363rwkw to 413rwkw Nothing wrong with eflex just a lower ethanol content compared to e85 Link to comment Share on other sites More sharing options...
ms700 Moderating Team 10,170 Member For: 21y 10m 14d Gender: Male Location: Sydney Posted 18/04/14 06:36 AM Share Posted 18/04/14 06:36 AM "May" need to add another 044 or beef up your fuel system Link to comment Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,674 Member For: 16y 6m 29d Gender: Male Location: adelaide hills- 'race air' central Posted 18/04/14 08:28 PM Share Posted 18/04/14 08:28 PM I wnt from 341rwkw to 365 with just a change to 50/50 98 ron and e85. couldnt use full e85 cause 60lb dekka's were getting too close to max duty cycle...still a whopping gain from just a fuel change. I use united too. Link to comment Share on other sites More sharing options...
(Locky) Member 85 Member For: 10y 11m 12d Gender: Male Posted 18/04/14 09:29 PM Share Posted 18/04/14 09:29 PM No a xr6 but I just went United e85 on my sr20Went from 215 on 20psi to 220 on 16 psi New 20psi was around 245 before maxing 740cc injectorsReal benefit is you can run a whole lot more timing and boost safely so it feels like the turbo comes on a lot quicker. Generally feels a lot better, car runs a whole lot cooler on the track tooMainly did it for the reliability and cooling, but bonus power is pretty cool. Last traxkday I used low boost all day and felt way better ro drive than old hi boost 98 tune Link to comment Share on other sites More sharing options...
el-dub801 Member 44 Member For: 12y 8m 7d Gender: Male Location: Wollongong Posted 18/04/14 11:05 PM Author Share Posted 18/04/14 11:05 PM Thanks for the info guys - I'm using dekka 660's at the moment. Might have to go to 1000's I think and as suggested another 044 pump at the surge tank. Link to comment Share on other sites More sharing options...
rednose RNS10S Donating Members 2,229 Member For: 18y 3m 29d Gender: Male Posted 19/04/14 05:10 AM Share Posted 19/04/14 05:10 AM Sort your fuel system out first and then tune for e85.I went from 370 on 98 to just over 400 on e-flex and just over 420 on United e85BF Mk2 ZF (standard turbo) Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 1m 18d Gender: Male Location: Perth Posted 19/04/14 05:59 AM Share Posted 19/04/14 05:59 AM Depends on your engine and how much timing can be dialed in.The anti knock properties of E85 are fantastic, so if you built an engine up the compression. I would say with the right package and fuel system, the right car could go from 400 - 500 rwkw with a change to E85. Link to comment Share on other sites More sharing options...
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