spiky1987 wrote:Does anyone know what settings affect the ignition table ???
Mine does not seems to work over 26 ... From 26 to 90 ... the engine react exactly the same. I wanted to know how the software do it's calculation and which settings may affect this variable ?!
I'm using MS3 with MS3X on a 4 cyl fully seq. with toothed wheels ( 12 ) and 1 cam teeth.
Thanks a lot !!
wes kiser wrote:You likely have something fundamentally VERY wrong with spark control. Have you actually made marks, and strobed the engine to verify commanded timing matches actual, and that this is true throughout the rev range?
zappaMan wrote:We had all sorts of trouble with the stock Honda VR sensors on a CBR600 F4i (for Formula SAE) awhile back. Timing would drift all over the place and no amount of swapping pins and noise filtering would help. Finally switched to hall sensors and everything works waaaaaay better. We didn't figure out what was going on until we set the timing to locked 13degrees and confirmed it with a timing light and the stock timing mark across the entire rev range (1500rpm-14000rpm). A timing light is your friend!
PS See you in Michigan... I'm car 33 (University of Victoria)
zappaMan wrote:I ordered the hall sensors from digikey (they are really quite nice honeywell sensors. They are a bit pricey, but not too bad: 480-2811-ND)
spiky1987 wrote:Hi !
Thanks a lot for your tips, with the vr sensor on the crank, we had some problem ( like at 5k rpm ) some .... lag or whatever. Putting 5v zener made us have a nice little square wave, seems to be good.
Can you tell me what it your tooth #1 angle ? So i can compare with ours .... at least it's gonna be 180° offset if you have cut the opposite tooth on the cam.
My main point here is that I can Start the car with 90° ignition advance which is almost Impossible
taylorhoff wrote:Our crank wheel is modified with one tooth removed, making it a 12-1 wheel, which changes the definition of what tooth #1 would be. But in any case, our tooth #1 angle is approximately 0 degrees.
spiky1987 wrote:Oh s*** ! I didn't want to remove a teeth , cause it leaves you with only 11 tooth.... this is working well ?
But the tooth are not exactly in front of the sensot when the engine arrives at TDC no ?
spiky1987 wrote:taylorhoff wrote:Our crank wheel is modified with one tooth removed, making it a 12-1 wheel, which changes the definition of what tooth #1 would be. But in any case, our tooth #1 angle is approximately 0 degrees.
But do you still use the cam sensor ?