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General non-information about factory ALS

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Old Oct 22, 2011 | 12:34 PM
  #76  
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Evors, I would really like to see your method be refined. I am considering plumbing my bpv directly into the exhaust... Fuel cut delay needs to be overrun. Possibly use alt map as ign retard map ? If it can be used as meth failsafe I'm sure it could be here as well .. I'm running 3dsd now so hopefully that doesn't complicate it, but if I need to I can re maf.

When tps = 0 use alt maps ?

I downloaded autronuc sm4 so ftware a while back to see what they did.

Last edited by 211Ratsbud; Oct 22, 2011 at 12:41 PM.
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Old Oct 23, 2011 | 06:44 PM
  #77  
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SD shouldn't effect it at all, so really I guess alt maps could be used but it would be nice to have dedicated maps just for the functions period so if u have an aggresive map vs a mild one antilag could be different for both maps.
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Old Oct 23, 2011 | 08:25 PM
  #78  
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I hear ya, the options are wide though. We can do this.
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Old Oct 24, 2011 | 09:04 AM
  #79  
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I peeked at my old favorite nasioc, they have a 16 bit Rom gr n that gives spark cut, als, and SD in one shot. Lucky!
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Old Oct 24, 2011 | 10:05 AM
  #80  
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http://forums.nasioc.com/forums/show....php?t=1865156

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Old Oct 24, 2011 | 02:19 PM
  #81  
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Thanks 211ratsbud
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Old Oct 24, 2011 | 04:56 PM
  #82  
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For the linky? Welcome, there's even gr n roms for dbw cars which rocks...
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Old Oct 24, 2011 | 07:23 PM
  #83  
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I've got the OEM SAS working on the last three cars I've played with now, 5RS, 7GSR, 8MR. All have factory SAS/ALS hardware, all are injecting fuel after lift off.
I had to blank off the EGR valve on the 7 though.

Good for some nice noises only though...

Last edited by Benja; Oct 25, 2011 at 04:35 AM.
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Old Oct 25, 2011 | 12:41 AM
  #84  
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actually SD it is afected(not per se) by diverted air to the manifold- but rally sti and evo with proper ecu's use corection map from MAF on top of SD just like diesels when air is diverted (sas/egr) (because you don't want to overspin turbo+if you know how much air you diverted if you plan burning it in the turbo it helps in a class like gr.n where you're not allowed to ad sensors like turbo speed, egt.....)...... you can get away without correction when on overrun , but when you reaccelerate you neeed correction if you don't want a on off engine....eve simple gr.N ecu's use diffrent fuel and ignition and mivec maps when on als , but a lot simpler than factory cars with the help jacked up throttle not sas and corrections have lot less impact than with air injection; if proper als/antilag would have beeen achivable with stock ecu, pectel, zytec, gems,Mclaren.. would not be seeling 5000-10000usd ecu's...Motec M800 comecial version are semi toys ...(it is one thing to develop stategies in ecu and another to just emulate them after they are beeing already implemented...)
if you people are patient next weekend i 'll put up some video's of evo's runing propper als with standalone ecu's -by this i mean i will show what you can do with ecu in real time and how diffrent settings affect the procces...
until you have REAL TIME mapping and logging capabilities(live map tracing-let's see new evoscan 2.9....) at prooper logging speed (at least 200hz -per chanell not total) you wont get to much out of oem , ecu because there are so many variabless which need to be linked together that you can't even imagine, if you want to do it like in WRC gr.n cars(PWRC) for which Evo's were intendet to be used in first place.
also please don't confuse als with launch controll- als will only help you after overrun-eg.rally hairpin ,tight corner, autocross... will not do anything to top end power....most of people here are trying to impove 0-400m times and for that you need launch and traction control not als, als is for reducing spool time until engine reache peak volumetric efficency...
..but than again maybe not everyone wants to drive a evo with almost 600NM-450lbFt at around 2800-3000rpm, and 1.2-1,5 bar boost on overrun(that is up to 22psi on your gauge-36psi absolute-on a series 80 turbo) every day in traffic..
ps. i atach a image so people can get an idea of what is needed to run als through sas on a gr.n car with propper ecu

and video oem ecu sas als - sound nice but does almost nothing
http://www.youtube.com/watch?v=yB7uVtzusKQ
Attached Thumbnails General non-information about factory ALS-283915_248879698465701_100000310197235_880697_906030_n.jpg  

Last edited by claudiumxg; Oct 26, 2011 at 09:35 AM.
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Old Oct 25, 2011 | 05:59 AM
  #85  
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No maf input on subie .. they use gm iat just like us .
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Old Oct 25, 2011 | 06:34 AM
  #86  
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From: Cluj
yes,let's not forget this is a ecu intended for gr.n not gr.A as evo's...and they have no maf input because they use a adaptation of the sti gr.N rom on subies just for sd part, but that is not the complete rom which will only run on jdm 5 plug ecu's(i have a 2003 edm sti which is last here with 5 plug and 2.0 engine, on which i played with the 04gr.n rom...) if you have time to take a look at the maps in the rom you can actually see there are few tables that are related to maf(g/sec) but as i mentioned before they don't affect sd part as sti's don't have sas as they are gr.n.... only gr.a cars and early s6- s9 wrc cars......afterwards they went to rocket system + pressure accumulator...
so you have to ask what are you after? sound- easy on oem ecu at present time, launch?- realtively easy with tephra roms althrough is quite primitive- no cut , no timers , no slip control....als with air injection? -that one is very hard to make to be useful ;ie with some control not just dumping air in exhaust- you will only benefit from this on a autox track no effect on launch startegy unless you have a dbw and a complex tarction controll stategy which regulates itself the opening of throttle during launch independent to you torque request-aka tgas pedal position

Last edited by claudiumxg; Oct 26, 2011 at 09:37 AM.
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Old Oct 25, 2011 | 06:48 AM
  #87  
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Boost on overrun is what on after. Benja, did you achieving boost on overrun with factory hardware, or did you not check pressure in ic piping ?
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Old Oct 25, 2011 | 07:02 AM
  #88  
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K, than boost on overun it is, factory sas is to small for that unles run in conjunction with a throttle bypass or jacked up throttle, and also NO BOV!!!!!!!!!!!!
this is something people here try endlesly - it does not work with bov- no mater how you use it sas, jaked throttle,. You cn only get positive pressure before throttle with sas, this is why you need acumulator, so your manifol expiriennces vacum, you only get boost in manifold if you let it open... Then you basically are a diesel but instead of varing torque by fuel you vary it by ignition.....a bit hard to grAsp, other wise when you come of the overrun you get a low spot as pipes discharge of pressure just like with STOOPID vent bov...so if you want fast turbo-you go no bov just a pressure discharger if your turbo control sistem malfunctions- as a safety measure but set to open 10-15% higher than your max boost....thys is primitive way, other way is active control of discharge......

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Last edited by claudiumxg; Oct 26, 2011 at 09:38 AM.
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Old Oct 25, 2011 | 08:32 AM
  #89  
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Sas= rocket. Hks sells pipes and hardware larger than stock . Or did at one time. It's doable on stock. ecu my friend .. people have positive confirmationon this. Were trying to engineer more control
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Old Oct 25, 2011 | 09:04 AM
  #90  
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Subaru wrc spares shoes that setup pretty well . I'm not afraid to hurt my car in the name of science haha
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