Thor Posted May 4, 2003 Share Posted May 4, 2003 They are doing it in house. Link to comment Share on other sites More sharing options...
Wez Posted May 4, 2003 Share Posted May 4, 2003 The AEM supports both automapping and open / closed loop operation. Closed loop uses feedback from the oxygen sensor to make temporary but immediate corrections to the injection to maintain a target AFR. The type of an O2 sensor will determine how O2 feedback can be controlled. Due to the nature of standard narrow band O2 sensors, 14.7:1 is the only air fuel ratio that can be accurately maintained in closed loop. Auto mapping is a function that allows maps to be changed automatically. This is not to be confused with closed loop O2 feedback, which only makes fuel output corrections. Auto mapping makes changes to the actual map simplifying the tuning process. Link to comment Share on other sites More sharing options...
Thor Posted May 4, 2003 Share Posted May 4, 2003 Originally posted by Wez The AEM supports both automapping and open / closed loop operation. Closed loop uses feedback from the oxygen sensor to make temporary but immediate corrections to the injection to maintain a target AFR. The type of an O2 sensor will determine how O2 feedback can be controlled. Due to the nature of standard narrow band O2 sensors, 14.7:1 is the only air fuel ratio that can be accurately maintained in closed loop. Auto mapping is a function that allows maps to be changed automatically. This is not to be confused with closed loop O2 feedback, which only makes fuel output corrections. Auto mapping makes changes to the actual map simplifying the tuning process. Did you swallow some AEM sales literature:p I know how aoto mapping works I have done it. CLC is great but not always necessary. Link to comment Share on other sites More sharing options...
Wez Posted May 4, 2003 Share Posted May 4, 2003 Damn it busted Here are the full articles :- http://www.aempower.com/bbs/viewtopic.php?t=1360 http://www.aempower.com/bbs/viewtopic.php?t=2183 Link to comment Share on other sites More sharing options...
dude Posted May 4, 2003 Share Posted May 4, 2003 Wez How does the AEM effect the transition of the turbos , i thought this was all done via the pressure tank and vsv's , i understand the AEM can act as a boost control but how does the ECU control the point where the 2nd turbo comes in , see my post here about late turbo and youll see why i ask . John:flame Dev Link to comment Share on other sites More sharing options...
Wez Posted May 4, 2003 Share Posted May 4, 2003 The AEM controls all the VSV`s and you can setup when you want to open and close these based on RPM if I remember correctly. Everything is user configurable Link to comment Share on other sites More sharing options...
Thor Posted May 4, 2003 Share Posted May 4, 2003 Originally posted by Wez Everything is user configurable How's the ALS & traction control on the AEM;) John, I thought you had sussed that when we spoke? Link to comment Share on other sites More sharing options...
dude Posted May 4, 2003 Share Posted May 4, 2003 Thor i thought it was cured too , i think it comes and goes but yesterday i had a pretty good go with a Kwak ZX9R and at first i pulled a bit on him , then we had to slow for traffic when we had space i changed it down and it really held back he was all over me then No2 came on and we were off and running again , he complemented me on the car with the words 'thats shit off a shovel mate , i cant believe how it goes', today with no traffic i kicked it down from 3rd to 2nd , 5000rpm and boost falling away then 6000 and 1.4 bar , then a bit later i felt no2 come in about 4500 , its really pissing me off , im sure its the actuator on the inside of n01 turbo , just need someone to confirm it could be this and i'll buy a new one , as i said the 3 vsv's on the exhaust side and pressure tank seem fine , the nly other thing out of the ordinary is my Mines ECU. John:( Link to comment Share on other sites More sharing options...
Adam W Posted May 4, 2003 Share Posted May 4, 2003 Thor; the new version 1.0 AEM software has user configurable TC on it apparently (not quite out yet), acceleration based though rather than ABS based so no idea how well that will work . . . Link to comment Share on other sites More sharing options...
fisherjohn Posted May 5, 2003 Author Share Posted May 5, 2003 Just installed my block at weekend. Overbored with 87mm HKS Pistons Head skimmed 8k and 1.6mm MHG Twin Hybrids from Turbo Technics capable to run up to 26 psi. Have the HKS S Type intercooler. Set of 720cc injectors with fuel rail going in. Have the AEM Latest management system in a box. Fuel pressure regulator to fit Walbro fuel pump to fit Existing fuel damper to remove. Need to get car then fine tuned on the rollers. Question is do i need anything else like 3/5 bar map / boost solenoid, or/and this wideband analyser as my car has only been driven approx 7 weeks in 18 months of ownership and cost and lack of userability now pissing me off with only one month left at home. Also have HKS EVC 5 Boost Contoller fitted. By wednesday / Thursday would look to be wanting someone to set up the fuelling but need to know if i need more parts now also who best to set the car up or any recommendations. Parts from the States / even for car have been a nightmare as well, imagine car will be approx 500/540 BHP. Any good advice here guys - money now becoming a problem as spent approx 26k to date in total buying car and extras, some not intended until car blew up. Link to comment Share on other sites More sharing options...
GavinL Posted May 5, 2003 Share Posted May 5, 2003 Leon has a man that can do the setup & mapping etc on an AEM, you could give him a ring. I'm not sure that he could work within your timetable and I'm afraid to say if you are running out of money then I suspect this guy may well clean you out. Why the 720 injectors BTW? Link to comment Share on other sites More sharing options...
Guest Martin F Posted May 5, 2003 Share Posted May 5, 2003 You will need the MAP sensor AFAIK and maybe the ignition amplifier (HKS DLI seems to be the prefferred one). A wideband is not strictly necessary as someody else can use their's to set things up for you. As Gavin said best to speak to Leon about mapping as his experience with the unit may be able to save you some time. Link to comment Share on other sites More sharing options...
Wez Posted May 5, 2003 Share Posted May 5, 2003 You will deff need a new MAP sensor if you plan on running anything above 18PSI. Leon and Paul are your best bet. Link to comment Share on other sites More sharing options...
Ian C Posted May 5, 2003 Share Posted May 5, 2003 Originally posted by Thor Ian the AEM is wasted spark. Why is this a problem with NOS? Depends on the cam profile, but if, during the exhaust cycle, your intake valve is opening and bringing in nitrous and fuel from a wet system that's on song, and then the wasted spark goes off, you may see your intake manifold exit through the bonnet -Ian Link to comment Share on other sites More sharing options...
Thor Posted May 5, 2003 Share Posted May 5, 2003 OK...........so a wet shot would be OK? I am surprised though as the AEM has specific nos software. Also the Titan car runs direct port & a Motec ECU which is also wasted spark. I'll see if I can do some digging. Link to comment Share on other sites More sharing options...
Alex Posted May 5, 2003 Share Posted May 5, 2003 The Crane Cams web site seems to say that their digital progrssive controller takes wasted spark into account.....but it's mainly talking about dry systems.... Not sure if that's helpful or not.... Maybe other digital (progressive) controllers can take advantage of it....its just a case of timing the NOS shot right isn't it?? Link to comment Share on other sites More sharing options...
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