I'm having a problem with starting my car. I have a E8 and a buddy of mine had given me a map, but under the ignition settings the tooth setting is at 10 and with a timing light it's zeroed at 65degrees trigger angle. Like I said I'm having a hell of a time starting it and I'm concerned that this might be the problem. The 13bre, S4, S5 cas has 11 teeth from what I now and see, and I've told that for some reason varying firmwares should use 10, WHY? I've tried searching, but I haven't been lucky finding anything. I was thinking about calling Haltech but I'm having a hard time waking up at around 4am...

 

If the timing synchs, the numbers aren't that important. As long as the trigger angle falls between about 50 and 90, and the timing synchs, that's all you need. You can actually drop the CAS in anyway you want and eventually get a working combination of values that may be completely different that what anyone else has ever used. What matters is that the timing is synched when locked and doesn't drift with RPM.

 

count again,, its 24/2 for FC and 12/1 for FD ,, and as above the actaul numbers from one cas drop to another will be different .. and all is OK if the timing light check zeros out

as for the starting,, much relies on your mixture and timing in the sub 500 rpm maps .. but sometimes it also pays to drop the cranking threshold lower.. this is the rpm at which the ecu reverts to fully sequential ignition and injection.. when under the rpm threshold during cranking it is only leading sparks working .. and thus dropping it to 200 - 250 rpm can make the engine catch faster