lookforjoe Posted September 17, 2012 Author Report Share Posted September 17, 2012 What size injectors are next. 1000cc. I have them ready & waiting. Justus just spent about three hours with me going through the entire base setup parameters for VEMS. Have a few small things to look at (WB02 calibration for one), but then it should be ready to install & test! 1 1 Quote Link to comment Share on other sites More sharing options...
dublin14 Posted September 17, 2012 Report Share Posted September 17, 2012 Im sure it wont take you very long to figure it out and get comfortable with VEMS. Plus having a proper system that can deal with 1000cc injectors and that 6262 at 20+psi. Quote Link to comment Share on other sites More sharing options...
fischmama Posted September 17, 2012 Report Share Posted September 17, 2012 Can VEMS handle LOW Z injectors? I have a few 1000cc injectors then. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted September 17, 2012 Author Report Share Posted September 17, 2012 Can VEMS handle LOW Z injectors? I have a few 1000cc injectors then. Apparently it can, PhatBob's Install Guide details pretty much everything, assuming you understand or have access to the detailed parameter inputs values. If you download the PDF, it's on page 36 Quote Link to comment Share on other sites More sharing options...
fischmama Posted September 17, 2012 Report Share Posted September 17, 2012 Apparently it can, PhatBob's Install Guide details pretty much everything, assuming you understand or have access to the detailed parameter inputs values. If you download the PDF, it's on page 36 Ok, so its similar to MS. Either use Resistors or a Flyback board. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted September 18, 2012 Author Report Share Posted September 18, 2012 VEMS wiring diagrams for ME4.4 ECU Added the Barometric reference MAP connections today. Added wire from A27 (power in to ME4.4ECU from injector circuit) to EC36-23. EDIT: B30 is now wired for the Nerst signal Forgot to note where I terminated the nerst signal wire at the ECU connector harness. It needs to connect to EC18-13. I have the wire attached to the circuit board, just have determine what ECU pin to use for it. 2 Quote Link to comment Share on other sites More sharing options...
mdlimy Posted September 18, 2012 Report Share Posted September 18, 2012 Ok, so its similar to MS. Either use Resistors or a Flyback board. yep, best bet is to just pick up a resistor box off like a 6cyl acura and wire it in, done. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted September 18, 2012 Author Report Share Posted September 18, 2012 More wiring diagrams Modified Engine Harness Current COP, with mods for VEMS COP 4 Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted September 20, 2012 Author Report Share Posted September 20, 2012 Still more work to do on the VEMS. 4th gear part throttle pull. Raised the boost to 21psi. Gets too lean by 5800, only 60% throttle. Inj duty cycle is fine, so it's not a fuel delivery issue - the problem is figuring out were in the fuel map to adjust, since the MAF is tapped out before then. It's awkward to make adjustments in this area, based on the roadspeed I end up at, and I'm still 2K under the limit. Anyway, I'll get it sorted out. Also, the Innovate LMA-3 integrated MAP seems to have taken a dump. Quote Link to comment Share on other sites More sharing options...
dublin14 Posted September 21, 2012 Report Share Posted September 21, 2012 Maybe just leave it at 18-19psi with the TT as you know tune is safe at that until you get the VEMS working. Do you really want to be working around a maxed out MAF for the sake of a few HP. Once you go MAP you wont have this issue anyways. Quote Link to comment Share on other sites More sharing options...
Jardim Posted September 21, 2012 Report Share Posted September 21, 2012 Maybe just leave it at 18-19psi with the TT as you know tune is safe at that until you get the VEMS working. Do you really want to be working around a maxed out MAF for the sake of a few HP. Once you go MAP you wont have this issue anyways. Makes sense, but like all of us he probably gets bored and goes for more lol. 1 Quote Link to comment Share on other sites More sharing options...
Yea-but... Posted September 21, 2012 Report Share Posted September 21, 2012 Makes sense, but like all of us he probably gets bored and goes for more lol. Happens to the best of us. Quote Link to comment Share on other sites More sharing options...
Homer Posted September 21, 2012 Report Share Posted September 21, 2012 Ok, so its similar to MS. Either use Resistors or a Flyback board. Well you really should be using the flyback board WITH resistors. It's not an OR. The new method is the LowZ extension board. True peak hold driving of the injectors. No resistors needed. I'm running it on my VEMS'd whiteblocked 240. Works like a charm. (750cc injectors) http://shop.vems.hu/catalog/lowz-extension-channel-p-161.html Quote Link to comment Share on other sites More sharing options...
NitroX5 Posted September 21, 2012 Report Share Posted September 21, 2012 I don't know what impedance injectors you going to use, but I experienced that with high rez. siemens decas were running better on the "Transient Suppression Diode" setup... With the flyboard they can't open fast enough to maintain smooth IDLE and perfect AFR(couldn't decrease inj open time), it was always richer whatever I did on the setup. Then switched to TS diode and everything goes much better. FYI Quote Link to comment Share on other sites More sharing options...
Captain Bondo Posted September 21, 2012 Report Share Posted September 21, 2012 I don't get why people are so bound and determined to run low z injectors to begin with... I guess maybe they're cheap. Otherwise, form a performance standpoint I see no compelling reason to ever run them instead of a modern set of hi z injectors. The last 2 generations of bosch injectors have been hi z. If low z injectors were really worth bothering with, I think bosch would know... Just MO.. Quote Link to comment Share on other sites More sharing options...
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