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> subaru ecu/ems, subaru engine electronics
ModPR3
post Feb 23 2006, 06:34 PM
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subie guys need your help again. after finding out that a 911 engine rebuild cost over 8k the subie or v8 path is looking good again. if i ran the 2002-2004 wrx 2.0 turbo motor what do i do about the engine control unit or engine management. can the engine be run with the stock subaru ecu or does it have to be switched out to a standalone unit. if the stock ecu can be used, how hard is it to wire into the 914. thanks.
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Mueller
post Feb 26 2006, 11:07 AM
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QUOTE
thanks for the info, im gaining knowledge left and right. if im running a turbo on a subaru or a type 4 engine with FI, and im running at 8 pounds of boost at 4k rpm but then i turn down the wastegate and now im at 12 pounds of boost a 4k rpm will the ecu adjust for this difference and at that time is it in closed loop so thats why it adjusted



on my turbo Volvo, if I took off slow enough and slowly gained speed to a cruising speed of 70mph, the motor would not produce even half of it's max allowable boost...now if hammered the gas, it would.....normal non-variable vane turbochargers will not produce max boost until you are at or very near WOT

4000 rpms would be close to running 70mph or more I think...

driving wise, what you as a driver would need to do is just modulate the throttle easier with the boost turned up higher....


I'll see if I can find some fuel injection MAPs with throttle positions so you can see the relationship between throttle position/manifold pressure(or vac. during normal cruise) and RPM, then it'll click...

whether you are doing a suby or a type IV turbo, I recommend Corky Bells Turbocharger book, amazon.com has it as well as a supercharger book from him (i have both, my Turbobook is autographed by him (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) )
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ModPR3   subaru ecu/ems   Feb 23 2006, 06:34 PM
lapuwali   The stock ECU can be used. There's at least o...   Feb 23 2006, 06:40 PM
Mueller   Here you go: Possum Link ...new board that replac...   Feb 23 2006, 06:50 PM
bondo   <...   Feb 23 2006, 06:57 PM
lapuwali     Feb 23 2006, 07:02 PM
Mueller     Feb 23 2006, 07:06 PM
TonyAKAVW   Type IV cheap? yeah right! At least most S...   Feb 23 2006, 07:21 PM
TonyAKAVW   The wiring harness 'conversion' isn't ...   Feb 23 2006, 08:02 PM
cbenitah   Tony, you are on the other hand the master of elec...   Feb 23 2006, 08:13 PM
TonyAKAVW   Well, there are a number of electrical engineers o...   Feb 23 2006, 08:29 PM
Hydra   i chose to go with Megasquirt, my thinking behind ...   Feb 24 2006, 03:32 AM
Paul Illick   Two biggest problems I see with MS are that I...   Feb 24 2006, 07:07 AM
d914   outback offers Link, stinger and then on to the bi...   Feb 24 2006, 08:20 AM
lapuwali     Feb 25 2006, 04:49 PM
Crazyhippy   http://www.914world.com/bbs2/h...   Feb 25 2006, 05:02 PM
ModPR3   <...   Feb 26 2006, 04:17 AM
Twystd1   Hey Mod, I live in OC also... Me thinks ya need ...   Feb 26 2006, 05:13 AM
Mueller     Feb 26 2006, 11:07 AMplymouth37   first off, the 2002-2004 wrx engine is a great cho...   Feb 26 2006, 12:27 PM
ModPR3   <...   Feb 26 2006, 06:33 PM
guiltless   This has to do with wiring as well, but on a sligh...   Feb 26 2006, 09:20 PM
jd74914   theoretically that just means that their is a sens...   Feb 26 2006, 09:40 PM
Mueller   <...   Feb 26 2006, 09:48 PM
jd74914   Ok, thanks for the clarification Mike. That makes ...   Feb 26 2006, 09:54 PM
Mueller   <...   Feb 26 2006, 10:01 PM
jd74914   What would the advantage of a variable opening be,...   Feb 26 2006, 10:04 PM


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