Alpha N Map

Discussion in 'E36 M3 (1991-1999) and E30 M3 (1986-1990)' started by Mikescx, Jan 9, 2016.

  1. 9 Jan 2016 at 9:20 PM #1
    Mikescx

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    Guys,

    Im going down the carbon airbox route with MAF delete.

    Should I just buy the Alpha N chip with EWS delete off ebay and put it in my DME or should I get it rolling roaded and mapped?

    Obviously the second option would be better and more tailored to my car but it will be more expensive and dont really fancy having my engine have the nuts revved out of it.

    The Alpah N chip will obviously have a standard map written so can you see any problems with buying and fitting it? Has anyone used one and what are your views?

    Thanks
     
  2. 10 Jan 2016 at 1:26 PM #2
    evoGrant

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    I would never buy a chip for alpha N.
    It will run **** and you'll only end up getting a custom map.

    Reved the tits out of it? The engine was designed to rev mate. It's not going to damage it!
     
  3. 10 Jan 2016 at 3:14 PM #3
    Cuttah

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    Alpha N is the fallback map, the "get you home" one, so won't perform well at all. You can read all about the shortcomings running that in the E46.
     
  4. 10 Jan 2016 at 6:17 PM #4
    thvdevel

    thvdevel Rocking a new hat

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    Won't perform well ? :D

    If you want to have good horsepower gain, that's the only way to go and stay NA.
    Me and my mate makes around 310hp on the dyno (almost stock, no map).
    On the same dyno, alpha-n car with a good carbon airbox gives ~350hp
    (all 3.2 engine)

    So let me tell you, in terms of performance, it's a significant difference ...
    But I think it's more intended for a track use in my opinion. Since for a daily driver, the cold start idle is not good at all, and it will consume more fuel.

    Don't buy a chip, go make a proper tune by a pro buddy :thumbsup:
     
  5. 10 Jan 2016 at 6:30 PM #5
    Mikescx

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    Thanks guys, thats what I'll do then. As they say, "buy cheap, pay twice".

    Next question, who would you recommend to rolling road and map it?
    Im in London, so wondering who you guys have used.
     
  6. 10 Jan 2016 at 6:44 PM #6
    jaggafeen

    jaggafeen Banned

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    e46 m3 csl runs Alpha N map as the primary map.
     
  7. 10 Jan 2016 at 6:52 PM #7
    thvdevel

    thvdevel Rocking a new hat

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    E46 CSL has a MAP sensor IIRC, that normal M3 does not have.
    That's why it does not have alpha-n drawbacks .. :)

    Funny that nobody tried to add a MAP sensor to the E36, so you can map the car more precisely than alpha n version.
    Maybe too much work :rolleyes:
     
  8. 10 Jan 2016 at 7:03 PM #8
    jaggafeen

    jaggafeen Banned

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    this is what one of the best mappers in the UK says

    wayne also known as chipwizard
     
  9. 10 Jan 2016 at 7:42 PM #9
    Cuttah

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    Lol...well all I am saying is in the case of the E46 M3 there is a terrific amount of evidence from those who went with the CSL style airbox running the MAF and an Alpha N map, that it didn't run very well - especially low down. All of those owners who have subsequently run CSL software, a MAP sensor not an MAF, have found it to be much better.

    I have been told by a number of tuners that Alpha N is the base that the E46 uses (so assume same for the E36 Evo) and with a faulty MAF is the get you home map. Alpha N isn't some magical map to release power on its own.
     
  10. 10 Jan 2016 at 7:49 PM #10
    Stu78

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    Totally different setup though to std alpha N. The software the CSL runs combined with the MAP sensor and an IAT is far better than a std M3 running std ecu software and an Alpha N map.

    There's plenty of threads on Alpha N on the Cutters forum and how lots of people have experienced the stutter low down and when they had their ECU converted to run the CSL software and Map and IAT it's transformed how the car drives and no more low down stutter.
     
  11. 10 Jan 2016 at 7:58 PM #11
    Mikescx

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    So if and when I fit my airbox could I drive it to get it mapped on the standard ecu?bearing in mind there wont be a MAF meter present.

    Also, could I install another evo dme whilst at the rolling road to be mapped? Basically I want to keep my original dme as it is and the spare dme would have ews deleted so in theory this should be possible right? One dme for original setup and one when using the carbon box.Thats my plan anyway.....
     
  12. 10 Jan 2016 at 8:08 PM #12
    jaggafeen

    jaggafeen Banned

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    the map sensor is there for a back up in case a sensor goes down the engine does not use the map sensor when running properly, the csl software uses a larger resolution alpha n map for better drive ability.
     
  13. 10 Jan 2016 at 8:12 PM #13
    Stu78

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    It still uses a map sensor so we are splitting hairs here really.
     
  14. 10 Jan 2016 at 9:20 PM #14
    thvdevel

    thvdevel Rocking a new hat

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    Yes, that's a good way of doing it. :thumbsup:
    Which airbox are you going to use ?
     
  15. 10 Jan 2016 at 9:35 PM #15
    Mikescx

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    Mac Motoren. iv done my research and they come highly rated and fit and finish is near perfect.
     
  16. 11 Jan 2016 at 2:02 PM #16
    thvdevel

    thvdevel Rocking a new hat

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    I heard a few airbox, and from the inside no one sounds like the E46 CSL one. I guess trumpets ect are different on the E46, that's why the sound is completely different.
     
  17. 11 Jan 2016 at 3:36 PM #17
    evoGrant

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    They have a slash cut so are a lot more open at the end.
    Wonder how difficult it would be to fit e46 trumpets and box on a e36. I'm guessing the bodies have larger diameter too.
     
  18. 11 Jan 2016 at 9:22 PM #18
    Iain

    Iain Staff Member Moderator

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    I have done this, see my build thread.

    Also a lot of sh1t being talked about alpha n.

    1 I run alpha n chips, they run lovely, cold start in all temps is perfect, far better in fact than it was on a maf

    2 there is no map sensor or provision for one on the e36, period

    3 you can't chip an evo, so your going to have to map it or flash it anyway
     
  19. 12 Jan 2016 at 10:32 AM #19
    thvdevel

    thvdevel Rocking a new hat

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    Could you post a link to your thread ?

    The chip on the 3.2 DME is just soldered .. so in fact yes you can place a new chip if you want, it just need resoldering.


    Edit : http://forums.m3cutters.co.uk/showthread.php?t=21145&page=4

    Interessting :thumbsup:
    Did you finish your airbox ?
     
    Last edited: Jan 12, 2016
  20. 12 Jan 2016 at 10:58 AM #20
    evoGrant

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    Oh I remember now :thumbsup:
     
    Last edited: Jan 12, 2016

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