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      01-26-2012, 12:05 AM   #1
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SUCCESS!!! 3.0I to 3.0SI ECU upgrade has finally been achieved!!!

UPDATE : 04/25/12


Well after going back and forth for months we finally cracked it!

car is a demon! accelerated like my I has never done before.

car has driven now for almost a month now with the new software and the drivability is great and no lights or error codes, my engine is as of right now driving like a stock SI Z4.

NOTE: this is not a tune of the I software, this is SI engine tuning spliced into the stock I software so it makes the engine think its a tru SI not a tuned I.
theirfore more HP can be made over any tuned I map.

pretty cool stuff!

what’s coming next is tuned software for this conversion to squeeze out the remaining HP left.

I am planning to get the dyno done here soon and will be able to post numbers and the difference between the stock and new custom SI MAP.

the one thing the SI has over the standard I is the torque converter in the trans, it’s a slightly larger stall.

but the I has a tad higher rear end so it makes up a little bit so it’s probably barely noticeable, if you’re crazy you can always stick in the SI torque converter to finish the deal. also if you’re a stick shift then this won’t bother you.

once I have the new maps with the tuned software I will dyno all 3 so you guys can see the difference in action.

otherwise this should be the biggest gain in HP us N52 "I" guys can get for the money.

looking at going from 212HP to 275HP is the goal.


we will see. just wanted to keep you all updated.

Last edited by -c-; 04-25-2012 at 04:55 PM.
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      01-26-2012, 12:54 AM   #2
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      01-26-2012, 01:04 AM   #3
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Quote:
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      01-26-2012, 01:05 AM   #4
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be careful, power is addictive...
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      01-26-2012, 01:34 PM   #5
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Quote:
Originally Posted by -c- View Post
Stay tuned, I will post more soon, few more tests are needed.

have to make sure this is 100% safe, it should be but need to be sure!

i will post data and dyno here when completed.
Hello neighbor. I live in Naperville too. I am very interested to hear more about your ecu upgrade. I was getting ready to go get a generic boxed tune but now I am going to wait to see what you come up with.
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      01-26-2012, 02:37 PM   #6
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Quote:
Originally Posted by partlowr View Post
Hello neighbor. I live in Naperville too. I am very interested to hear more about your ecu upgrade. I was getting ready to go get a generic boxed tune but now I am going to wait to see what you come up with.
Awesome! we should meet up sometime always a pleasure to meet a fellow enthusiast!

Iím near Naperville rd and 75th street.

anyway, i may have been overexcited and to say success right at the moment is only a half truth, but to have the car start and drive meant we are on the right track, their are just a few more codes that we have to work around, they dont hamper the drive but throw a code and the light and we dont want that.

again this is not a tune but a reprogram of the ECU using bmw SI engine programming with SI tuning on top of that, so you will need the 3 stage manifold before you get the reprogram + tune.

im kind of the guini pig at the moment and taking a risk using my engine as the lab rat as it where.

once i have a completed ECU i will take it to the dyno and swap between stock and reworked ECU to show gains.
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      01-26-2012, 02:46 PM   #7
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and then BAM! kits for sale =)
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      01-26-2012, 02:58 PM   #8
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Quote:
Originally Posted by partlowr View Post
Hello neighbor. I live in Naperville too. I am very interested to hear more about your ecu upgrade. I was getting ready to go get a generic boxed tune but now I am going to wait to see what you come up with.
-c- has an N52.

your M54 won't take this upgrade.
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      01-26-2012, 03:14 PM   #9
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-c- has an N52.

your M54 won't take this upgrade.
Oh ya, I just noticed his is a 2006 ...oh well.
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      01-26-2012, 03:22 PM   #10
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Quote:
Originally Posted by -c- View Post
Awesome! we should meet up sometime always a pleasure to meet a fellow enthusiast!

Iím near Naperville rd and 75th street.

anyway, i may have been overexcited and to say success right at the moment is only a half truth, but to have the car start and drive meant we are on the right track, their are just a few more codes that we have to work around, they dont hamper the drive but throw a code and the light and we dont want that.

again this is not a tune but a reprogram of the ECU using bmw SI engine programming with SI tuning on top of that, so you will need the 3 stage manifold before you get the reprogram + tune.

im kind of the guini pig at the moment and taking a risk using my engine as the lab rat as it where.

once i have a completed ECU i will take it to the dyno and swap between stock and reworked ECU to show gains.
I'm at the opposite end of town out near Rt. 59 and 95th Street. We should for sure meet up some time. A few friends and I are going to try to organize a few Cars & Coffee type events for Sunday mornings this spring/summer probably in the parking lot of Bar Loui/Rosebud, theres a Starbucks there. We actually had an event planned there last fall and had about 40 guys from other boards(mostly MB and Porsche) commited but there were severe thunderstorms that morning. Mine is parked for the winter and currently undergoing some mods(exhaust, front lip spoiler, springs, shocks, intake, wheels and tires) I hope to have it all buttoned up by mid Feb.

Do you tune yourself or are you working with Eurocharged or someone?
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      01-26-2012, 05:15 PM   #11
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Quote:
Originally Posted by partlowr View Post
I'm at the opposite end of town out near Rt. 59 and 95th Street. We should for sure meet up some time. A few friends and I are going to try to organize a few Cars & Coffee type events for Sunday mornings this spring/summer probably in the parking lot of Bar Loui/Rosebud, theres a Starbucks there. We actually had an event planned there last fall and had about 40 guys from other boards(mostly MB and Porsche) commited but there were severe thunderstorms that morning. Mine is parked for the winter and currently undergoing some mods(exhaust, front lip spoiler, springs, shocks, intake, wheels and tires) I hope to have it all buttoned up by mid Feb.

Do you tune yourself or are you working with Eurocharged or someone?
no, working with ESS right now on the ECU, its a long process so its nice when you start seeing positive gains!

just like loosing weight! sounds like my wife! she tells me when i want to spend money on "go faster" parts she tells me to "loose weight and its free"
lol oh well.

that would be great, a freind of mine who moved here with us (Navistar) just got an M3 so we would totally show up. id have to bring the MINI, i fear if i showed up with an auto M lookalike i may get flamed lol...... hey no M badges are on it, well maybe on the steering wheel and wheels but thats no different than most M tuned cars.

anywho talk to you soon man!
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      01-26-2012, 05:47 PM   #12
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Quote:
Originally Posted by -c- View Post
no, working with ESS right now on the ECU, its a long process so its nice when you start seeing positive gains!

just like loosing weight! sounds like my wife! she tells me when i want to spend money on "go faster" parts she tells me to "loose weight and its free"
lol oh well.

that would be great, a freind of mine who moved here with us (Navistar) just got an M3 so we would totally show up. id have to bring the MINI, i fear if i showed up with an auto M lookalike i may get flamed lol...... hey no M badges are on it, well maybe on the steering wheel and wheels but thats no different than most M tuned cars.

anywho talk to you soon man!
Nobody is gonna flame you, I have a non-M myself, I had an M5 but got rid of it becuase my company relocated up to Huntley, IL and I was piling on the miles (100 mile round trip commute) and it sucked in the winter. Traded it for a Jeep Grand Cherokee LOL but then promised myself I would get myself a weekend car and after a test drive I fell in love with the Z4, what it lacks in power it more than makes up for in agility and my winter mods I am working on should wake it up a bit. Most of my friends drive European car M's and non-M's AMGs and non-AMG so nobody is going to flame anyone....unless you Roll up in a Mustang LOL.
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      04-25-2012, 11:41 AM   #13
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Update

C,

Any update to this thread, I am getting ready to make this mod myself.

Thanks!
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      04-25-2012, 04:56 PM   #14
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updated please read OP!


MODS sorry for the dual threads, i just wanted to update both.
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      04-25-2012, 05:58 PM   #15
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great job, and thanks for being so persistent! unfortunately I just found out that my 328i has an n51 motor and I don't think your mods could be retrofitted to mine....
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      04-25-2012, 11:01 PM   #16
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I am really interested in this! Can't wait to see how it progresses. Great job!
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      04-26-2012, 05:10 PM   #17
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so the tuning is being performed by ESS or a local tuner?
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      04-27-2012, 10:14 AM   #18
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Any estimate on what this type of conversion costs?

I assume you purchased new/used items and then did the program.

Steve
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      04-27-2012, 11:28 AM   #19
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so the tuning is being performed by ESS or a local tuner?


im having ESS do all the programing im just the test mule lol....
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      04-27-2012, 11:46 AM   #20
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This is really cool! Great work!
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      04-27-2012, 11:52 AM   #21
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Quote:
Originally Posted by ShakyDog View Post
Any estimate on what this type of conversion costs?

I assume you purchased new/used items and then did the program.

Steve



the 3 stage manifold must be done first (this alone has shown to gain 10WHP dyno proven) which i have the DIY on somewhere on the forum. the parts i bought off www.car-part.com from a junk yard off a low milage X3 SI, the part cost was $200 including the acuators
so i see it being under a grand all said and done if parts are bought used.

parts you would need new from the dealer if you choose to not buy used or no parts are available are:

New parts from dealer----

part# 11617559523 manifold $586
part# 11617579114 ajuster unit $186
part# 11617560538 ajuster unit $186
-------------------------------
Total $958
+
ECU = ?

everything else can be swaped from your single stage manifold

so buying the parts new from the dealer would cost a bit more


i could see ESS selling the manifold and the DISA valves with programming as a kit but i dont know how they will go about it, im just speculating.

I have no idea what price ESS will want for the programming but i cant see it being out of line with what else they charge for ECU programming time will tell.
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      04-27-2012, 11:56 AM   #22
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as of right now these are the only available 3 stage manifold assymblies they have listed



2009
Intake Manifold
BMW X5 USED, TESTED ENG-13000 A C9039 $500 Japan Tech Auto Wrecking USA-CA(Chula-Vista) Request_Quote 619-421-6875 Request_Insurance_Quote
1854
2008
Intake Manifold
BMW 328 -GOOD 08328BMW $350 Costa Mesa Auto Dismantlers USA-CA(Costa-Mesa) Request_Quote 1-877-300-1894 / 1-949-548-7013 Request_Insurance_Quote
1867
2007
Intake Manifold
BMW 328 A071009 $250 Apple Auto Dismantling USA-CA(Wilmington) Request_Quote 1-562-436-6424 Request_Insurance_Quote
1880
2009
Intake Manifold
BMW 328 A A021211 $250 Apple Auto Dismantling USA-CA(Wilmington) Request_Quote 1-562-436-6424 Request_Insurance_Quote
1880
2006
Intake Manifold
BMW 530 752036710 NOT SURE OF PROD DATE,752036710 A WAGBMW $245 Nationwide Auto Recycling USA-MA(Lancaster) Request_Quote 1-866-534-0477 Request_Insurance_Quote
693
2010
Intake Manifold
BMW 328 i N51,PLASTIC INTAKE A SA0001 $200 Sambucci Bros. II USA-NY(Flushing) E-mail 718-661-4100
586
2007
Intake Manifold
BMW 328 i 2.8L,EFI A 014532 $175 Brickyard Imported Cars USA-IN(Brooklyn) E-mail 1-800-247-9273 and 1-317-831-2627 131
2007
Intake Manifold
BMW 328 i N51 ENG,2.8L, B 015020 $175 Brickyard Imported Cars USA-IN(Brooklyn) E-mail 1-800-247-9273 and 1-317-831-2627 131
2008
Intake Manifold
N51 eng B $SA931 $165 LKQ - Lakenor Auto Salvage USA-CA(Sante-Fe Springs) E-mail 1-800-525-3667 1866
2007
Intake Manifold
BMW 328 ASSY,ON SHELF A 121 $165 Ralph's Auto Parts USA-IL(Lockport) Request_Quote 815-723-7997 Request_Insurance_Quote
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