E36 328i + M3 exhaust manifolds.What gains? - Page 3

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    #21
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    Quote Originally Posted by Artur Costa View Post
    Wow! 30hp with a remap? Or is that after all mods?
    Mine dynoed 218hp with m50 manifold and m50b25 BBTB stock ecu.
    Will dyno after exhaust fit and remap but dont expect the +30hp or that will bring me to the 250hp range.
    With the m50 manifold mod on a 328j we always see around 208-210 bhp with standard software
    After our remap we see 234-240 bhp but it's the torque that makes all the difference
    These have be dynoed on a dyno dynamics tooling road
    This is t1000's dyno we remapped years ago which was the base car for all the 328i mods done today
    With us cams it made 263bhpImageUploadedByTapatalk1351588622.771474.jpg
    After this he fitted m3 exhaust manifolds and lost the power

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    #22
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    I made 231 bhp with 292nm of torque around a year ago on my 328i. It had a remap and m50 manifold fitted. At the time the botched together manifold had a bad air leak and the car would hardly hold idle tbh im surprised they let it on. Now i have alpinas manifold fitted all sensors and vanos seal have been replaced and its running a treat im hoping to hit the rollers in a couple of weeks btw its a nikasil engine on 190,000 miles :O
     
     

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    #23
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    So whatever init... I made good power with a local remap by somebody I know.

    It doesn't matter who does the remap, its not exactly rocket science on these old ECU is it!
     
     

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    #24
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    Quote Originally Posted by djsteviec01 View Post
    So whatever init... I made good power with a local remap by somebody I know.

    It doesn't matter who does the remap, its not exactly rocket science on these old ECU is it!
    It is surprisingly complicated this ecus due to the lack of information that was available on its time. But still there is a lot to gain in remaping specially in the low end.
    I felt a huge difference from 1500 to 4000rpm with the remap.

    Back to topic , here are my parts ready to fit:
    403440_202357673232024_667486128_n.jpg

    Does anyone know if the 28i lambdas fit M3 3.2 manifolds holes?
    Artur Costa
     
     

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    #25
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    Quote Originally Posted by Artur Costa View Post
    It is surprisingly complicated this ecus due to the lack of information that was available on its time. But still there is a lot to gain in remaping specially in the low end.
    I felt a huge difference from 1500 to 4000rpm with the remap.

    Back to topic , here are my parts ready to fit:
    Attachment 42659

    Does anyone know if the 28i lambdas fit M3 3.2 manifolds holes?
    Yeh good gains can be made sorry for going off topic. The 2.8 lambdas will fit the 3.2 manifold
     
     

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    #26
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    Quote Originally Posted by Artur Costa View Post
    It is surprisingly complicated this ecus due to the lack of information that was available on its time. But still there is a lot to gain in remaping specially in the low end.
    I felt a huge difference from 1500 to 4000rpm with the remap.
    Correct me if im wrong im not a file tuner but what is difficult to understand about 12 x 16 map? people change these in % and get same power as people who understand whatever it says in the maps. have you ever opened a 328i file?'
     
     

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    Quote Originally Posted by djsteviec01 View Post
    Correct me if im wrong im not a file tuner but what is difficult to understand about 12 x 16 map? people change these in % and get same power as people who understand whatever it says in the maps. have you ever opened a 328i file?'
    My concept of tuning is not adding % to values I dont understand. The simple or normal maps are there and more less easy to tune but when you want to do something worth calling tune you dont even have the RPM axis to do it.
    Compared to the info available for Bosch ECUs you cant do half on this MS41s.

    Yes I have opened 28i files , I work on chiptuning for nearly 10 years now
    Artur Costa
     
     

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    #28
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    Quote Originally Posted by djsteviec01 View Post
    So whatever init... I made good power with a local remap by somebody I know.

    It doesn't matter who does the remap, its not exactly rocket science on these old ECU is it!
    It depends what's been done to the remap and what maps have been adjusted
    It's not about adjusting in %
    If someone has just copied a map for one car to another there will be a 16 to 1 chance it will be correct for the car
    I've seen this so many times and fix many cars

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    #29
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    Quote Originally Posted by bwchiptune View Post
    It depends what's been done to the remap and what maps have been adjusted
    It's not about adjusting in %
    If someone has just copied a map for one car to another there will be a 16 to 1 chance it will be correct for the car
    I've seen this so many times and fix many cars
    The map has not been copied from another car i watched my file being adjusted in Winols. I know its not about adjusting in % im just stating i know people who do this and still get the same gains as higher respected file tuners on this ecu. I guess all i was trying to say is the siemens ms41 is very basic compare to ecus of today and yes good gains can still be made
     
     

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    #30
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    Ok, so exhaust fitted and car feels faster.

    Did a dyno test and result was 239hp ... stock map and stock exhaust was 218hp. But it was not in the same dyno so will wail later for it.

    My question here is , has anyone had problems with bad idle and missfire after this exhaust change? Car runs fine and smooth when hot , but when cold it runs bad sometimes.
    I have the stupid problem of using the 25i IAT in the 28i wires ... anyone did the swap to the correct sensor and can tell what happen?
    Artur Costa
     
     

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