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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Help. installin flex fuel wires.



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      07-22-2012, 04:05 PM   #23
Everfly
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Just finished installed last night, this morning I filled up with 6 gallons of E98 ( I don't have E85 ) and I able to peek at 20.5psi and steady at 15.5 psi all the time. It Was fun but wish It can hold at 20 psi terry is the man. He even replied to my question at midnight last night. Could not be any happier. JB4 and terry thumbs up
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      07-22-2012, 10:27 PM   #24
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Yea ur prob right. Sounds like movie scene from the transporter. Maybe I should invest in a 25 dollar fire extinguisher in that case . Lol
lol, you are fine. Now get meth!
Lol I was being sarcastic .
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      03-28-2014, 11:38 PM   #25
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I figured it out last night . Filled a 60/40 mix- switched to map5 - changed the open loop settings to
60 and after a few wot's the car became a beast. I was peaking at 18psi and consistent at 16-17 . Between shifts are smooth as butter w/ no lag and consistent power . Loving this new mod. If it makes my neck snap back in every gear im happy. Best 25 dollars I've ever spent. Thanks terry for looking out w/ the quick responses
Hey I just installed the wires on my 2012 335xi, but not sure how to set up the mapping. any input would be great, Im still new to this
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      03-30-2014, 06:32 PM   #26
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I figured it out last night . Filled a 60/40 mix- switched to map5 - changed the open loop settings to
60 and after a few wot's the car became a beast. I was peaking at 18psi and consistent at 16-17 . Between shifts are smooth as butter w/ no lag and consistent power . Loving this new mod. If it makes my neck snap back in every gear im happy. Best 25 dollars I've ever spent. Thanks terry for looking out w/ the quick responses
Hey I just installed the wires on my 2012 335xi, but not sure how to set up the mapping. any input would be great, Im still new to this
Make sure you have the newest firmware; then just switch to map 5 through your steering wheel controls and do some 3rd -4th gear pulls. And enjoy. map 5 auto tunes itself to your mods. Simple as that.
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      05-20-2014, 07:55 PM   #27
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Make sure you have the newest firmware; then just switch to map 5 through your steering wheel controls and do some 3rd -4th gear pulls. And enjoy. map 5 auto tunes itself to your mods. Simple as that.
How hard is it to instal the FF wires? Longer and harder than the s2 jb4?
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      05-20-2014, 08:04 PM   #28
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How hard is it to instal the FF wires? Longer and harder than the s2 jb4?
Not difficult. Use a flathead screwdriver to release the fuel rail sensor clip. Makes it so much easier, and will save your thumb from some pain.
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      05-20-2014, 09:17 PM   #29
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Actually, I found the best way is to realize that the actual button on the clip can be locked by pushing it in (towards the front of the car). Therefore, make sure it is unlocked by pulling it out (towards the back of the car) first. There shouldn't be much resistance to this. The button is pretty easily pushed down once it's unlocked but IMPOSSIBLE to remove and a serious thumb pain if it's still locked.
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      05-21-2014, 12:05 AM   #30
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Ok thanks for the quick replies. Is it cool to run the ISO ff setup on map 5 if I'm still pretty stock? How much boost will I hold? Right now it holds 13-14 psi on map 2 with 93 octane and runs fucking great.
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      05-21-2014, 10:27 AM   #31
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Ok thanks for the quick replies. Is it cool to run the ISO ff setup on map 5 if I'm still pretty stock? How much boost will I hold? Right now it holds 13-14 psi on map 2 with 93 octane and runs fucking great.
That's fine. It's what I use and I have basically a stock + tune setup like you. I get about 18 psi on map 5 when I'm using E40. I have had to limit the boost in 1st and 2nd though, otherwise it roasts the tires.
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      05-21-2014, 11:31 AM   #32
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Awesome thanks jdub. Is the install of the FF wires a PITA? Compared to the jb4?
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      05-21-2014, 11:43 AM   #33
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Awesome thanks jdub. Is the install of the FF wires a PITA? Compared to the jb4?
No, it goes faster, imo. But you definitely need to take your time, double check the instructions before doing anything. Getting the fuel sensor plug out is the hardest part, especially if you choose to leave the engine cover on like I did. Just remember it doesn't need a whole lot of muscle, if you're pushing down on the plug button and it's not sliding out, then it's likely that the button is still in the locked position.
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