e90 ECU tunning

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e90 ECU tunning

Postby Potato » Wed Nov 24, 2010 5:22 pm

did anyone try the ecu tunning before? It is heard that there is a shop at Tokwawan can offer ECU tunning for E90 which can increase both horse power and torque by 10%. Any comments? how about the oil consumption....

Details:
1.) only ECU re-flash
2.) no extra modification on other parts
3.) 10% horse power and torque improvement
4.) can re-flash back the original ECU image in case needed
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Re: e90 ECU tunning

Postby ellislau » Wed Nov 24, 2010 8:40 pm

~10% more fuel consumption
Slightly change in engine sound
A bit more torque

Above observations were confirmed when changed back to stock ecu.
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Re: e90 ECU tunning

Postby Potato » Thu Nov 25, 2010 12:06 am

May i confirm your car is e90 or other else? are u using 330i also? which shop did u try before? It is heard that e46 ecu tunning is exactly the same as what u mentioned.
So, i just want to confirm whether the new ECU flashing software really improve performance or not..?
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Re: e90 ECU tunning

Postby E36328 » Thu Nov 25, 2010 12:36 am

on a NA car, the difference won't be discernible. It's not worth your money
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Re: e90 ECU tunning

Postby Potato » Thu Nov 25, 2010 11:00 am

how about XXX pxxxxbox ar..did anyone try this before ? I've tried Spxxxx Boxxxx already. My 330i really becomes responsive especially in the first 30km, but as i know this item only improve the reponsiveness without actually power improvement.

But from the adv of pxxxxbox, it mentioned that it helps to increase 10+hr power and 10+ torque...it seems quite interesting..and the price is just simular to Spxxxx Boxxxx.

To me, the torque of E90 330iA is not good enough such that after the power loss on the A/T transmission, the resultant torque is quite weak and the power is not released as sharp as a manual 130i (same year) although both cars are having same engine.

I even tried the 0-100 measurement, the best time is only 8.1s whereas my friend's 130i (manual) is 5.9s. Really really disappointed. :cry: :cry: :cry: I've compared the acceleration graph of both cars, the acceleration of 330i is a bit mild whereas 130i is very very sharp. This explained the result clearly.
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Re: e90 ECU tunning

Postby hkz4 » Thu Nov 25, 2010 12:15 pm

Honestly, if sub-6-second 0-100 is a must, then you'd be better off saving up for / spending the money on a 335.

Messing with an NA engine is not cost-efficient, unless it's a Honda vtec or something like that...
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Re: e90 ECU tunning

Postby ellislau » Thu Nov 25, 2010 12:48 pm

Potato wrote:May i confirm your car is e90 or other else? are u using 330i also? which shop did u try before? It is heard that e46 ecu tunning is exactly the same as what u mentioned.
So, i just want to confirm whether the new ECU flashing software really improve performance or not..?


It is a stoneage S50B32. I supercheaped it trying to solve some funny tech problems. It has been returned to stock now.
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Re: e90 ECU tunning

Postby hahayan » Thu Nov 25, 2010 3:07 pm

Potato wrote:how about XXX pxxxxbox ar..did anyone try this before ? I've tried Spxxxx Boxxxx already. My 330i really becomes responsive especially in the first 30km, but as i know this item only improve the reponsiveness without actually power improvement.

But from the adv of pxxxxbox, it mentioned that it helps to increase 10+hr power and 10+ torque...it seems quite interesting..and the price is just simular to Spxxxx Boxxxx.

To me, the torque of E90 330iA is not good enough such that after the power loss on the A/T transmission, the resultant torque is quite weak and the power is not released as sharp as a manual 130i (same year) although both cars are having same engine.

I even tried the 0-100 measurement, the best time is only 8.1s whereas my friend's 130i (manual) is 5.9s. Really really disappointed. :cry: :cry: :cry: I've compared the acceleration graph of both cars, the acceleration of 330i is a bit mild whereas 130i is very very sharp. This explained the result clearly.


bigger car and less respondive shifting..8.1 Vs 5.9 ...not too bad, both data was done by you ?
torgue...seem never lacking for me..(Z4 3.0si coupe.) when the rev staying at above 3500 rpm.. and always stayed between 3rd to 5th gear..

HKZ4: u ever tested the 0 to 100?
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Re: e90 ECU tunning

Postby hkz4 » Thu Nov 25, 2010 3:29 pm

hahayan wrote:HKZ4: u ever tested the 0 to 100?

No.

I've never found myself needing to go from 0-100 under any circumstance except on a track.

I don't see the point testing something that I never have to use.

In any event, I've never felt I need more power on the Z4. And mine is pre-facelift quoted at 231PS only.

Which is why I haven't even chipped the S3... yet :twisted:
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Re: e90 ECU tunning

Postby E36328 » Thu Nov 25, 2010 4:13 pm

just buy a cheapie WRX STI for $330,000 and you can get more than enough power
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Re: e90 ECU tunning

Postby digi » Thu Nov 25, 2010 5:49 pm

chip alone won't do it. Unless u are planning it to be a project car as mentioned by hkz4 you are better served in changing your car to say a 335i, else as Danny says get yourself a WRX/EVO or any of the past hero's for pure fun.

Remapping can be attractive, but its not going to get u anywhere close to 5.9 secs. You may also want to consider whether the 130i's gearing is more aggressive so that you can change the "mei nar", but overall I would still recommend u to change vehicle if you are after performance in the 5sec's region for 0-100.
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Re: e90 ECU tunning

Postby turtle » Thu Nov 25, 2010 9:12 pm

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A new diehard fan of Bayerische Motoren Werke here. (請多多指教)
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Re: e90 ECU tunning

Postby lci88 » Sat Nov 27, 2010 7:43 am

slightly related to the OP subject, my brothers e92 M3 ran out of standard warranty in UK the other day and he added new rear silencers. While he was at it he got an ECU remap. Shockingly, they dyno'd his car with V-power at 403 bhp. They've dyno'd 50 e9X M3's before and seen figures of 404-410. Out of interest, the top gear M3 had 424 standard so BMW gave TG the real deal!

I know cars lose hp as they age, but i wonder what the cars come with from the factory. What's the tolerance?

If anything, getting an ECU remap will bring it to the correct power levels!! :D
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