Fastest N54 XI? Post it up!

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Corporal
Free Vendor
Nov 3, 2016
121
IL
Crazy to think this was over 2 years ago.

I ran 11.3 on cast blade, standard 15t rbs. This was before inlets, MHD, and such, This car was a blast to drive, a truly simple setup, made about 440-50 awhp on e50, and was a turn key 11.3-4 second car at the track whenever, whererver.

Shortly after, I went hunting for more power, installed the first set of TFT inlets, the car made incredible power (600+ awhp), but ran into several driveline issues among other things. Sadly the car that ran 11.3, was totaled out when I smashed a deer :(

I have another xi, it's basically a clone- I'll be back at the track with it shortly!

IMG_2807.JPG
 
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Sw4y1313

Private
Nov 7, 2016
31
Lacey, WA
Im an e92 XI 6MT running GC Turbos(just installed over the weekend) with AD Engineering IC, and Twisted Tuning meth plate with 1400cc/min worth of nozzles(7). She'd be running right now but I needed a longer elbow from the IC. That comes in today then I can start tuning. My goal is 700awhp.
 

zmon1300

Corporal
Nov 3, 2016
164
Chicagoland
I am on Pure stg2 HiFlow turbos, ADE fmic, PR inlets etc..
On E40 currently on Ken's tune. PI is being installed over the weekend. Should be mid 5s to the wheel. Kind of scared to launch it at the track after listening to all of @Dave @ Fuel-It! 's horror stories. I may just go to the track to see what it does. Goal is 600awhp for the summer, then turn it back down for fall/winter
 

[email protected]

Lieutenant
Free Vendor
Nov 14, 2016
655
North Wilkesboro
Really nice posts guys!

So, as far as that power split goes... That would be incredible to switch back and forth from.

20 - 80 would be great for races, while stock is great for never getting stuck :p
 

Cheezy

Lieutenant
Nov 7, 2016
588
Toledo Ohio
Alright guys, it's time to mount tires on my new wheels. I've been searching all over and ended up just confusing myself more with each new option I've looked at. I'm not going for huge power, but I have had traction issues at the track with Cooper rs3 all seasons. I'm trying to get at least a 30,000mile, performance tire, for around or under $140. I've found MT street comps and that has my interest at the moment, but bfg GForce comps, and sumitomo hrz are also being considered. Are their any recommendations as to what you run on your xi for good launches?
 

08_335i

Sergeant
Nov 3, 2016
371
Alright guys, it's time to mount tires on my new wheels. I've been searching all over and ended up just confusing myself more with each new option I've looked at. I'm not going for huge power, but I have had traction issues at the track with Cooper rs3 all seasons. I'm trying to get at least a 30,000mile, performance tire, for around or under $140. I've found MT street comps and that has my interest at the moment, but bfg GForce comps, and sumitomo hrz are also being considered. Are their any recommendations as to what you run on your xi for good launches?
Had the Continental DW on my car and had nothing but garbage to say about them. Firestone just came out with the Firehawk Indy 500's not that long ago, and for the price, can't be touched by much IMO. I've beat the crap out of them for about 8k miles and they still look brand new. not sure what sizes you're running, but if stock, here they are (I run 235 front and 275 rear). https://www.tirerack.com/tires/TireSearchResults.jsp?tireIndex=1&autoMake=BMW&autoYear=2008&autoModel=335xi+Sedan&autoModClar=Sport+Package&frontWidth=225/&frontRatio=40&frontDiameter=18&frontSortCode=53650&rearWidth=255/&rearRatio=35&rearDiameter=18&rearSortCode=54100
 

Jsherry20

Sergeant
Dec 21, 2016
313
Not sure what power they were making but we are somewhere in the mid to high 600s before an injector failed. Havent gotten to the dyno yet, but with no traction issues and etc. Pure Turbo 6266 doc race kit Tune by me, MHD/JB4 stack for PI control.

Vdyno (Pre injector failure)....

View attachment 2496

Video....(embedding not working, link below the embed box) this was on 23psi

View: https://www.facebook.com/twistedtuned/videos/1788785624694201/


I think i have some more videos on my Facebook, need to go look.

EDIT: re-uploaded to my Youtube channel for embedding.....

This is pretty sick, can't believe this car is holding the power, I wish someone would take the XI drivetrain and build it up! Hopefully you have more info in time!
 

TwinTurboWAWD

Private
May 16, 2017
28
I have MMP stage 3's on my xDrive.
It's a slow build due to my wife being in school. The good news is xhp stage 3 went in this weekend. Trying to get time setup to visit a dyno, closest one is bout 6 hrs away. I'll have to plan a mini vacation with the wife. Also going to have to schedule time with Justin too
 
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TwinTurboWAWD

Private
May 16, 2017
28
What do you think of the stage 3?
I love them for DD I've got over 13k miles on them. I'm only running 8.5 psi on pump 10psi on e30. Being xDrive and still pulling away from FBO v8s HAHA IT does the job... I'm bout to turn the boost up though... I keep telling everybody that... I've just been worried bout the front dif and since its my DD I havent turned it up.
There's an e92 that's pure s2 my first target after then a FBO CTSV just to get an idea what she'll do
 

doublespaces

Administrator
Oct 18, 2016
7,206
AZ
I love them for DD I've got over 13k miles on them. I'm only running 8.5 psi on pump 10psi on e30. Being xDrive and still pulling away from FBO v8s HAHA IT does the job... I'm bout to turn the boost up though... I keep telling everybody that... I've just been worried bout the front dif and since its my DD I havent turned it up.
There's an e92 that's pure s2 my first target after then a FBO CTSV just to get an idea what she'll do
Nice, also I should have specified, the xHP stage 3 :)
 

doublespaces

Administrator
Oct 18, 2016
7,206
AZ
For cruising around in "normal" it shifts way smooth compared to before.
In "sport" it smoothed out shifts as well as speed up the shift rate.

Let's just say I fell in love with the car all over again haha....
Sweet. I have all three maps but need to try them still.

Have you swapped in the M3 rack? It's one of my favorite mods.
 

Twisted Tuning

Lieutenant
Platinum Vendor
Oct 25, 2016
846
New York
I have MMP stage 3's on my xDrive.
It's a slow build due to my wife being in school. The good news is xhp stage 3 went in this weekend. Trying to get time setup to visit a dyno, closest one is bout 6 hrs away. I'll have to plan a mini vacation with the wife. Also going to have to schedule time with Justin too

Just let me know. I'm always around. Where are you located?
 
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