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Old 06-03-2021, 04:51 PM   #15
jflogerzi
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I suggest you get Flex Fuel with ecutek. Well worth the investment.
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Old 06-03-2021, 05:52 PM   #16
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Originally Posted by FR-S2GT86 View Post
One other requirement for fuel starvation during hard cornering is a tank that is low on fuel. I think it's supposed to be less than 1/4 tank to give you that problem.

Was your tank low every time you took that high g corner?
I don't recall, but that would make sense as it seemed to only happen every few 100 miles
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Old 06-03-2021, 05:54 PM   #17
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Originally Posted by Brz866 View Post
No extra noise at all you just pull off the driver side rear seat to get to the access patch and ftspeed has a very detailed video about pulling the pump basket out. I took my time and did a pump at the same time but I'd guess no longer than 2 hours and that's really taking your time from start to finish.
Thank you for the info. I want to do this regardless of fuel choice.
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Old 06-03-2021, 05:57 PM   #18
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I suggest you get Flex Fuel with ecutek. Well worth the investment.
I'd love to go that route, especially because winters here can make E85 tricky, but 2017+ models don't have a flex fuel kit for whatever reason. However I haven't looked around since summer 2020, so someone might've developed a kit since then.
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Old 06-03-2021, 07:54 PM   #19
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Quote:
Originally Posted by Celica00 View Post
I'd love to go that route, especially because winters here can make E85 tricky, but 2017+ models don't have a flex fuel kit for whatever reason. However I haven't looked around since summer 2020, so someone might've developed a kit since then.
Are you sure... That does not make sense

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Old 06-03-2021, 11:02 PM   #20
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Quote:
Originally Posted by Celica00 View Post
I'd love to go that route, especially because winters here can make E85 tricky, but 2017+ models don't have a flex fuel kit for whatever reason. However I haven't looked around since summer 2020, so someone might've developed a kit since then.
Delicious Tuning kits supports 2017 at up
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RCE T2's, SPC LCAs -4/2.6 camber
JDL 4-2-1 EL, FP and OP, Tuned by Zach@CSG on e85
RR Wilwood Front/Rear Sport BBK, Motul 600 Fluid
ARC-8 17x9 SX2 GTs 245s/Koing 17x8 v730's 225's
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Old 06-04-2021, 11:45 AM   #21
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Are you sure... That does not make sense

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That's what I thought as well. Thanks for pointing me to Delicious
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Old 06-10-2021, 12:36 PM   #22
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Originally Posted by Celica00 View Post
Ok.

My new theory is I fried the fuel pump from poor decision making. As every time the car failed and died were on two freeway entrances where there's a fairly sharp and sustained left turn. And apparently, this car (and WRXs) suffer from a factory flaw of fuel starvation when WOT on a hard left turn. I starved it one too many times and ruined the fuel pump.

Going back to E85 for the summer and will avoid having fun on left turns. Worst case, have to replace fuel pump again and it actually is the fuel source. Best case, racecar.
Adding onto what FR-S2GT86 said, as far as I've read on this forum and heard of from folks, this is not an issue for DD's. To my understanding, you have to REALLY be pushing the car (as one would on the track) and take a HARD corner at WOT to produce this result. I don't believe I've ever read any DD having this problem. Being lower on gas would definitely be a culprit as well.
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Old 09-09-2021, 01:41 PM   #23
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For the sake of "closing" this case.

I installed an aftermarket fuel pump (thanks for the suggestion @Brz866) as well as the fuel starvation door. I've had a couple thousand miles on it without a single issue, even when giving it the beans on hard left freeway entrances that historically caused the engine to starve.

Next step is flex fuel so I don't have to reflash when I have to switch back to 91 in the winter. Thanks for your help all.
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