Recent content by grimreaper

  1. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    Hey guys, Rollus has the code i started with the interrupts and timing calcs in it. Feel free to make use of it as you please. If any one wants a copy, pm me your email address (piratetip). I still have the bench top setup to demo on so I am happy to continue that portion of the project. Car...
  2. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    Hey Reynald, Shoot me a pm if you want to take a look at the code i wrote. No sense in starting from scratch! Please do keep this going. I moved things over to atmel studios 6 too if you are familiar with that. Current limiting of the ignition coil is the only real hurdle I can forsee. I...
  3. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    bit of a redirect. The short coming of the 'one step behind' operation is hard to get around. 3p has a viable solution, actually two. The easiest being to mimic the stock ignitor and provide ample time to charge. Basically redoing the power side and changing the current limit the ignitor will...
  4. grimreaper

    Piggy-back guys, let's talk ignition timing.

    Are you saying that there is a decrease in timing of 4 degrees after you added 15% from the AFM signal? What rpm range is this in? What rpm are you adding or removing 40% from the AFM signal?
  5. grimreaper

    Exceeded stock rev limiter?

    Kenny thinks he's going to have the balls to spin a 7m that high... ;)
  6. grimreaper

    Lexus AFM Help

    The lexus bypass screw is only good for +/-1% of the airflow going through the meter. The screw is most likely used during manufacturing to fine tune the karman vortex sensor to the housing. Which is why you cant get the housing and sensor separate.
  7. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    ^ essentially yes, but with a twist. The coil start to charge, or on signal has to be generated completely. Nothing in the stock ecu will work for that. Thanks for the support. I hope to see it through as well! The BOM is not finalized yet. I started with the well known atmel 328p used in...
  8. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    Waiting on terminals to build a jumper harness. Picked up a 6 channel 'dumb' ignitor from a 1994-1995 camry. Tach and IGF are built in. Tested regulators and so far everything I have on paper or the bread board is working as it should. Adding all of this to my car and ecu to test with stock...
  9. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    not 100% sure. A lot of the costs will be in how the end product is mounted. An internally mounted version keeps cost down by using the ecu peripherals and wiring. An external version requires more PCB space and additional circuitry + some form of case and connector. I can build both styles...
  10. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    Thanks guys, the idea is to produce these in small numbers once any future kinks are worked out. No eta, but sooner rather than later! Goal is to keep this project affordable. Demo board testing is under way. Good results so far. Response to changes in timing is working as expected. Below are...
  11. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    More success. One last timer to add in the code and then on to board layout! So far everything has bench tested perfectly. Hope to have a proto board setup for testing in parallel with the stock ignitor sometime next week.
  12. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    The stock tccs wont work with the DH61 by itself. or any other ignitior that I know of. In order to us the DH61, we need some variation of the code I have been working on. My goal is to convert the tccs signals to a form that allows any 'dumb' ignitor to be used with the stock tccs. Then we can...
  13. grimreaper

    7MGTE Ignitor Operation & Alternative Ignition Coils

    Small success in getting main portion of the code working. About 25% there for a programmable ignitor for the stock TCCS. The biggest hurtle is coming up with a coil ON signal. Nothing out of the stock tccs can be used for this so it has to be calculated based on the previous ignition event...
  14. grimreaper

    morganson's COP S-Type setup

    Grimreaper/ Dean R./ quantity 1/ no undercut/ 75007
  15. grimreaper

    morganson's COP S-Type setup

    The DH61 looks perfect then. IGT/IGA/IGB would all be converted to the 3 signals needed for the DH61 ignitor. I can replicate the tach and IGF signals but no need with that. Hopefully there is no current limiting going on. We need about 8-9 amps for both coils in series from what I can find on...