Anyone here that knows the owners or has excellent reliable contacts with someone in Cobb, will you PM me? Basically we were told that Cobb has hired some new developers and they they were working on speed density for 16 bit (2002-2005 2.0L WRX) ECU's. I need to know the validity of this and what kind of time frame before at least a beta test is out. I'm maxing out the MAF's on my setup. Draw thru won't help as I'll max it out just as fast. The 16 bit ECU's only understand 300 g/s of flow and you can only do so much tuning before you start to lose resolution with idle trims and such so speed density would solve all my issues. I could increase my MAF 6 more mm and get some more but we'll be on the edge and I don't like that. Was thinking of doubling up a UTEC for SD but dunno how well that would work and if Cobb is working on SD for my ECU, I'd rather wait and have to buy nothing but a better MAP sensor.
Cobb has not even come out with SD for the 2004-2007 STi so I seriously doubt they will have 16bit stuff out anytime soon if ever. They are moving forward with bigger fish, and doubt they will focus much on the 16bit stuff. Plus the way the SD works with the factory ECU is very primitive compared to say an AEM.
I just talked with Tim Bailey and since I know he works closer with Cobb than anyone else. They still haven't finished the 32 bit ECU SD stuff so no development for the 16 bit in store. However I've got my solution so I'll be ready to turn up the timing, boost, and all come spring time. Even thinking of bumping up the meth spray from a M10 nozzle to a M15 :dirty:
Yeah you beat me to it....thanks. Thanks to Tim and Robbie I've got my solution. Tim practically confirmed what Robbie already told me.
i was gonna say, by the time you paid all that $$ for a beta version (which i doubt they will stand behind as well as a production version, which could result in more problems/more money), you could have just bought an AEM and had it tuned. as my understanding is, you don't need a MAF. then again, maybe that is just on '05+ ecus. either way, by the time you spent all that money on the cobb, you could have done stand alone/another MAF solution, right?
probably wont work.. but you might try calling them and seeing if they will talk to you about availability.. i have had a least one conversation with someone out there on a technical issue and they will at least talk to you.. having a 2003 myself.. IF i get past the 16 bit ECU i am seriously considering AEM since it supposedly is plug and play plus MAP (I assume). which would allow me (I hope) to use a detuned APV2 map for emissions and perhaps road tripping and the AEM would allow me to 'play'. i would run the OEM ECU sometimes and the AEM sometimes. having to swap out ECUs to do this, as long it works, is OK for me.. but my car is a second project-mobile..
AEM is MAP/SD based...but its really open and you can use a MAF if you want. Only reason to leave it in is for the IAT. Otherwise, just dump it and put an IAT at the throttle body. tolnep: The AEM is PnP, the map provided from AEM will start and run a stock car w/out issues...enough to really get started on tuning. One already with mods (serious ones, not just bolt ons like a stage 2 car) will need tweaks to get it started and idling. The AEM is an awesome piece of equipment, worth every penny. I take it you live in an area with emissions inspections?
I wouldnt say "suck", more so that it lacks features that the AEM has standard. Not to mention the last time I tried to use a hydra, 1/2 the tables and options I needed to change were locked. Thus it got dumped and the AEM went in.
i live in marietta, cobb county requires yearly emissions. i must pass the standard obdb II scan.. as to the two grand price .. yep. i've said this before.. before the economy went down the tube, i was looking at buying a new z06 and even considering the nissan GTR when the price was supposedly around 69 to 70k. i had two jobs, info systems (database tuning, support and design) and i had a second small company building single family homes. that second biz is long since gone dormant.. now i like to work on cars and have done projects in the past and bought the wrx in 2002 after selling an M3, so instead of buying a new car i figured i'd start a new mod project using the wrx since there is a huge info base now out for the car and it makes a good platform for mods. i dont like spending money if i can avoid it, and i like working on the car myself. but i will spend it to meet a goal. and i've ending up doing most of the work on this car myself. so i've saved a bit there. long answer is i can afford the two management systems and dont mind switching back and forth.. a lot depends on what motor i end up with. the 16 bit ecu seems to be limited above a certain hp rate. you can hack it in some ways but it looks like the AEM plug and play will allow me to do that with greater ease, and leave the stock sensors in place, allowing me to put the stock ECU in place when needed. and it gives me another 'toy' to play with.. but we'll see. i have both engine and transmission decisions to make in 2010 and on the tranny front... i really really dont want to add 80 to 100 lbs to the car with the 6 speed.. so im sorta stuck there on a decision too.. about the hydra... when i first heard about it i figured if i bought a standalone, the hydra would be it.. really liked its functionality.. but i've talked to several tuners in several local shops and they all hate the thing. apparently it is really buggy and prone to failure..
From what I understand, it will not work on my LGT nor do they plan on spending the time to get it to work on my LGT
by crappy you mean it can 'flex' making even expensive gears fail. yes. this is them main thing making me hesitate on doing this. there is a new company in maryland doing albins. albins has a great rep. one solution (no way i would buy this) is 12,000$ for something called '6 speed lite'. other solutions, are cheaper.. i would probably go with the 1..4 albins, 5th stock if i go this direction. when i started working on the car, the first thing i did was rebuild the suspension completely. in doing so, i ended up buying some stuff from turn in concepts. i had a conversation with one of the guys out there and was discussing the 5 speed upgrade as opposed to the 6 speed swap. he had spent around 10k doing two rebuilds to a five speed and both had failed and had moved on to the 6 speed in disgust. i think he had ppgs, not sure though. up till that time i was gonna do a rebuilt 5 speed. i like the 5 speed spread.. and i simply do not want to add 100 lbs to the car. i'd like to take weight off (within reason) not add it.
I thought the same until I tried to find simple things like the speed sensor wire. SOmething to do with the LGT being a CANBUS system. Dont know much more than that. I had to tap in the speed sensor cable behind the speedo
I still think it will work. And the 5MT case does not flex. If it did, when it did flex it would start leaking oil everywhere. The problem is the lack of gear and shaft strength. There is simply not enough room inside the case to build a strong enough shaft and gear set to hold up to what the 6MT does.
I just dont have $1800 laying around to gamble on it working Looks like there might be hope on the SD with Cobb. I have a PM in with someone that supposedly has this setup on a LGT.
Oh, I somehow got the impression you may have had access to one...my bad. Maybe you could borrow one to test? All you'll need before you get your hands on it is to check the pin out diagrams carefully to make sure the important items are all in the same spot and anything thats not important that happens to be in a location thats an input/output for the AEM, to disable the location via software on the AEM. But SD on a stock ECU would be better.
Freon was successful in converting a 2d MAF map to a 3d VE map and able to get SD working in opensource for a 16 bit ECU and i think NSFW has it working on an LGT. I have no interest in it and hence no info to share
From what I understand the 16bit SD Opensource is not safe for climate changes. It doesn't adapt like the MAF based systems do so if it gets very very hot or very very cold (climate has been swinging crazy here lately) you can run into issues with the fueling not being right. Correct me if I am wrong as I am still heavily reading and learning.
Sorry i dont have any value to add either to SD because im not heading that direction. The temp sensor for our cars is on the MAF so without it i assume you lose that sensing capability. I would ASSUME that adding a temp sensor in the TB is an option to trigger the intake air map to adjust the factor
Well you could just leave the MAF in and use it's temp sensor but not its MAF values. I'm digging around. My tuner knows more about this so I also have to make a trip and see him to talk out all options and take the most logical route. If I could afford it I would just got AEM and call it a day but I need to do some things around the house so I can't.
just crazy thoughts what if you have a dual tube intake and merge into one before the turbo and both balanced flow and use the maf method but half the value (or double the result)
I'm blow thru setup right now fyi. I don't really have to have an intake now.....could just go open turbo or filter directly on the turbo.
There is no question that an AEM can be made to work on your car. Give Dan a call and talk with him about it. They got a jumper harness for drews car and then repinned it to work.
AEM has 04 specific and 05~06 specific STi units only. edit: ^haha, thats what happens when I walk away for 30 minutes while tying a reply.
yeah, just be warned, if you buy the harness from TopSpeed (only registered vendors for the harness), it's NOT correct. IIRC, there are 6 pins that are messed up, therefore I ended up paying $400 for the harness and another $190 for BG to check every pin...woohoo FYI, the reason I went with the adapter harness is it leaves the stock wiring harness the same. I too live in Cobb and require OBDII emissions. I have my stock ECU scaled for the injectors, so I can just swap the ECU's for emissions purposes. I left the stock engine harness alone, so all I need to do is unplug the MAP and plug in the MAF. Also, I tapped my IAT just past the BOV on the IC piping. Also, drive by wire's a bitch to work w/ the AEM. We had to grind out parts of the throttle to make the AEM happy with the voltages the pedal was giving. In doing this, I've lost about the first 5-10% of my gas pedal. I'm used to it now, but people who haven't driven my car before (rarely ever happens) tend to stall like no other...I'm currently looking into this to see if there's something that can be done.
If you have a 02-03 and you want to run an AEM but have to get emissions why not just get an AEM and wire everything so that you leave the stock plugs in place that way you can switch back to a flashed ecu for emissions. Thats how Dan setup Drews. They left all the stock plugs in place that way its easy to put the Maf etc back on.
I've got the fix for this, Ill get Dan to send you the file. I think I found an extra usb adapter if you didn't get one yet.
thanks, still need that... Oh, btw, if you're thinking of getting an AEM, spend the money and get the newer version with the USB interface. Running a serial interface is a PITA. Only one or two adapters work well, and you have to be on port specific ports.
canbus is a high speed digital data communications system for all of the different control modules and systems to communicate over/with each other. Instead of the analog voltage signals and interpreting different levels of voltages and resistance, it uses 0's and 1's communicated in a very different manner across the system. The CANBUS communication harnesses are a twisted pair. If the pair is untwisted or interrupted somehow, mayhem will ensue. Luckily on a subaru the system is very simple.
Just talked with my tuner......we are gonna research the ups and downs on the OS rom but so far we are leaning on going to OS SD.
Oh and running a 70mm which is what Turboxs has. Thinking of moving up to a 80mm too. I've got to meet Robbie in person and talk out all the options as I hate texting him back of forth when it would take forever to ask all that needs asking.