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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > BrenTuning



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      04-26-2013, 08:23 AM   #1
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BrenTuning

Anyone had any experience with these guys? They look pretty good from what I have researched so far. It sounds like I can get a tune that will add 21hp/26tq with 93 octane - tune only. No bolt on.

Any experiences?
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      04-26-2013, 09:42 AM   #2
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where are they located
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      04-26-2013, 09:49 AM   #3
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where are they located
Massachusetts.

http://www.brentuning.com/
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      04-26-2013, 10:22 AM   #4
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For 395 you should volunteer yourself on behalf of the e90 community
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      04-26-2013, 10:31 AM   #5
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They do alot of the 335 folks in boston area (also alot of suby).
Their NA tune is most likely AA tune or eurocharge.
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      04-26-2013, 10:42 AM   #6
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Originally Posted by benzo23 View Post
For 395 you should volunteer yourself on behalf of the e90 community
To do what? Try it? The problem is that since I'm not local, I have to buy their tool (similar to AA's simon tool). They don't do any bench loading, so that's my only option. The cost of the tool is the same as the tune. The nice thing is that it comes with four different maps: stock/valet/pump91+ tune/race fuel 100

I'm planning on doing it, just waiting on some funds.
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      04-26-2013, 11:08 AM   #7
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Quote:
Originally Posted by WOT Bimmer View Post
To do what? Try it? The problem is that since I'm not local, I have to buy their tool (similar to AA's simon tool). They don't do any bench loading, so that's my only option. The cost of the tool is the same as the tune. The nice thing is that it comes with four different maps: stock/valet/pump91+ tune/race fuel 100

I'm planning on doing it, just waiting on some funds.
Sounds good, let us know how it is.
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      04-29-2013, 09:28 AM   #8
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Quote:
Originally Posted by ska325xi View Post
They do alot of the 335 folks in boston area (also alot of suby).
Their NA tune is most likely AA tune or eurocharge.
It's not AA or eurocharge. I've been talking with Brandon for a while now and I'm still trying to figure out a time I can drive down there to get my 09 e90 328ix tuned.

The tune is his own, and best gains I've seen around so far, according to the numbers he told me.

This is what he said in his email:
"We have flash tunes we have created for your motor, they make 18-20whp on 93 octane"
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      04-29-2013, 09:36 AM   #9
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Quote:
Originally Posted by baris View Post
It's not AA or eurocharge. I've been talking with Brandon for a while now and I'm still trying to figure out a time I can drive down there to get my 09 e90 328ix tuned.

The tune is his own, and best gains I've seen around so far, according to the numbers he told me.

This is what he said in his email:
"We have flash tunes we have created for your motor, they make 18-20whp on 93 octane"
+1

I think the tq is around 26 (to the wheels). He said to add 15% for crank numbers.

He also said that he didn't notice a big difference between the 3 stage IM and tune vs. the tune only. He said that the pulls through the rpm band are much smoother with the tune only.
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      04-29-2013, 11:12 AM   #10
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Quote:
Originally Posted by WOT Bimmer View Post
Anyone had any experience with these guys? They look pretty good from what I have researched so far. It sounds like I can get a tune that will add 21hp/26tq with 93 octane - tune only. No bolt on.

Any experiences?
DO IT!

If you do definitely weigh in on how it is, Im intrigued.
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      04-29-2013, 11:31 AM   #11
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If you can, wait a week or two. I'm planning on getting the tune, I'll let you know
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      04-29-2013, 11:52 AM   #12
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Quote:
Originally Posted by baris View Post
If you can, wait a week or two. I'm planning on getting the tune, I'll let you know
Great! I'm waiting on funds anyhow, so it's probably going to be a bit.
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      04-29-2013, 11:53 AM   #13
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I've been waiting on funds since January! Finally it's time!
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      04-29-2013, 12:30 PM   #14
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Quote:
Originally Posted by baris View Post
If you can, wait a week or two. I'm planning on getting the tune, I'll let you know
COOL! Yeah let us know!
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      04-29-2013, 12:46 PM   #15
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Quote:
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I've been waiting on funds since January! Finally it's time!
Are you getting the 91 or 93 octane tune? There is a 6hp/6tq difference I think.
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      04-29-2013, 12:52 PM   #16
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I'm going to get the 93 tune. Closest 93 is around 30 miles to me, but I drive down there once a week to fill up

I wonder if I can use 91 after a 93 tune, though. Not regularly but let's say I'm traveling and I can't find 93
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      04-29-2013, 12:58 PM   #17
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Quote:
Originally Posted by baris View Post
I'm going to get the 93 tune. Closest 93 is around 30 miles to me, but I drive down there once a week to fill up

I wonder if I can use 91 after a 93 tune, though. Not regularly but let's say I'm traveling and I can't find 93
Not sure. I was wondering the same thing
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      04-29-2013, 01:54 PM   #18
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Ooh, sounds interesting. If I can get the tool with the flash I can do a dyno tune when the time comes.
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      04-29-2013, 02:38 PM   #19
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what are the dangers if you were to switch back and forth between 100 octane and 91? is that bad for the engine
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      04-29-2013, 02:39 PM   #20
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If your car is tuned for a certain octane, using a lower octane may cause a knock
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      04-29-2013, 02:45 PM   #21
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Quote:
Originally Posted by gregistkrieg View Post
what are the dangers if you were to switch back and forth between 100 octane and 91? is that bad for the engine
The nice thing is that when you buy Bren's tool it included maps for both 100 and 93 (or 91 depending on what you tell them). You can use the 93 map most of the time, but if you want to use race fuel, switch the map to 100 octane.
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      04-29-2013, 10:23 PM   #22
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i just cant get over the fact that their site/link for the E90 NA tune has a picture of a F30 and list the I6 a 2.5 liter when its 3.0

http://www.brentuning.com/tunes/2006...8i-15whp195wtq
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