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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 12.096 @ 114 on JB4/flash



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      03-07-2013, 09:43 AM   #1
mdyates
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12.096 @ 114 on JB4/flash

Decided last minute to drop in to Orlando Speedworld last night. 2 child seats in, 3/4 tank of e50 and no adjustments to tire pressure. I did the BMS Flash to my JB4, otherwise my 13 335iS is stock w/2k miles. DCT.
I did two other runs at 12.1/12.2 but my traps were 116. Even though my 60 ft's are 1.9 on RFT, I'm breaking loose mid 2 gear thru third and DTC is kicking in hard hurting my 330.

Here is the time slip.
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      03-07-2013, 09:54 AM   #2
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how do you do the BMS flash?
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      03-07-2013, 09:58 AM   #3
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Using a Cobb, Terry sends you a file to help with fueling
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      03-07-2013, 11:52 AM   #4
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Nice work. If you'd left the child seats in the staging area, you could have broken 115.
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      03-07-2013, 12:16 PM   #5
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Congrats,

What does your boost look like in 4th gear through the RPMs before shifting to 5th or are you running 4th at the end ?
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      03-07-2013, 12:21 PM   #6
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Haha, yes, car seats out next time!

Buraq, I'm shifting around 6k rpm and def into 5th at the end. Although I could hold 4th and may try that. Boost is around 17-18, tapering off to 14-15 at 6k rpm. My timing is around 10 advance, and trims are really low so I might bump up 1 to 2 psi.

Are you shifting to 5th?
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      03-07-2013, 12:50 PM   #7
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Quote:
Originally Posted by mdyates
Haha, yes, car seats out next time!

Buraq, I'm shifting around 6k rpm and def into 5th at the end. Although I could hold 4th and may try that. Boost is around 17-18, tapering off to 14-15 at 6k rpm. My timing is around 10 advance, and trims are really low so I might bump up 1 to 2 psi.

Are you shifting to 5th?
I am long in 5th before the end. I believe your boost is dropping off earlier than your expecting in 4th gear.

you might want to shift out of 4th just before 6k rpms. 5th gear is where the beast comes out and will see relitively more boost compared to 4th.

run couple of logs from 3rd - 5th gear shifting at 6500 rpms and you will see what I am talking about
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      03-07-2013, 12:53 PM   #8
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Haha, I was the guy in the black 335 that ran you. Ended up running 12.8 with a 1.9 short time, testing that 2nd gear launch you mentioned.
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      03-07-2013, 01:12 PM   #9
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Buraq,

Just ran logs and confirmed I'm pulling timing upper end of of rpm range.

Arndtcraft, Good job dude! Solid time and a hell of a 60. nd gear launches worked well for my 330 ft on my e90! Good seeing you and hit me up next time you go out.
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      03-07-2013, 01:39 PM   #10
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how are you guys getting such great times without Downpipes, FMIC, and DCI?
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      03-07-2013, 01:54 PM   #11
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Awesome times tune only!
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      03-07-2013, 02:10 PM   #12
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Nice number for tune + E85 only.
.67 rounds out to the higher number. In my books you ran 115.
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      03-07-2013, 03:28 PM   #13
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Nice, thank you. My last run of 12.1 was at 116 mph
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      03-07-2013, 03:44 PM   #14
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Quote:
Originally Posted by triggz View Post
how are you guys getting such great times without Downpipes, FMIC, and DCI?
Power of the g5 board and bms flash stacked!

Also helps that the 335is has a DCT and more aggressive timing curve. Throw some sticky tires on there and 11s for sure!
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      03-07-2013, 03:55 PM   #15
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Quote:
Originally Posted by Tread135 View Post
Power of the g5 board and bms flash stacked!

Also helps that the 335is has a DCT and more aggressive timing curve. Throw some sticky tires on there and 11s for sure!
Ok but the BMS flash is useless for stock turbos. I guess the DCT and launch control makes a big impact.
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      03-07-2013, 03:56 PM   #16
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Quote:
Originally Posted by Tread135
Quote:
Originally Posted by triggz View Post
how are you guys getting such great times without Downpipes, FMIC, and DCI?
Power of the g5 board and bms flash stacked!

Also helps that the 335is has a DCT and more aggressive timing curve. Throw some sticky tires on there and 11s for sure!
335is actually has a LESS aggressive timing curve. The flash fixes that.
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      03-07-2013, 03:58 PM   #17
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Quote:
Originally Posted by Fully_Bolted View Post
335is actually has a LESS aggressive timing curve. The flash fixes that.
I forgot he's using e50.
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      03-07-2013, 04:11 PM   #18
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Very nice time and trap. Do you mind posting up a log including IAT's? Me and BuraQ would like to see it!
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      03-07-2013, 04:16 PM   #19
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Quote:
Originally Posted by triggz
Quote:
Originally Posted by Tread135 View Post
Power of the g5 board and bms flash stacked!

Also helps that the 335is has a DCT and more aggressive timing curve. Throw some sticky tires on there and 11s for sure!
Ok but the BMS flash is useless for stock turbos. I guess the DCT and launch control makes a big impact.
I saw your other comment noting he was on e50 so I'm not sure if this comment is still applicable, but do you still believe that the flash doesn't benefit the fueling for the stock turbos? If so why do you believe so? I'm just curious
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      03-07-2013, 04:21 PM   #20
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Quote:
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I saw your other comment noting he was on e50 so I'm not sure if this comment is still applicable, but do you still believe that the flash doesn't benefit the fueling for the stock turbos? If so why do you believe so? I'm just curious
I was told that the flash isn't beneficial for stock turbo applications if using Meth and 94 oct.
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      03-07-2013, 04:39 PM   #21
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Quote:
Originally Posted by triggz
Quote:
Originally Posted by Dmacc View Post
I saw your other comment noting he was on e50 so I'm not sure if this comment is still applicable, but do you still believe that the flash doesn't benefit the fueling for the stock turbos? If so why do you believe so? I'm just curious
I was told that the flash isn't beneficial for stock turbo applications if using Meth and 94 oct.
Depending on the amount and concentration of meth used, you might pick up a little bit of power going to a more aggressive timing curve, but it's certainly not worth the price of a Cobb.
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      03-07-2013, 05:09 PM   #22
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Quote:
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I was told that the flash isn't beneficial for stock turbo applications if using Meth and 94 oct.
Its the E85 mix % that you can increase with the COBB/BMS flash & factory turbos. Got that from Terry when he was helping me with a custom map. I don't have one & was advised to stay around 35%.
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