discovered a bad wiring mistake!
 

Well, I think I found the cause of my last motor blowing up. I had to recheck all the wiring on my setup after driving through really bad rain (a story for another post), and I discovered that my leading signal wire (light green) was actually running to the trailing coil. That also means that the trailing wire (white/black) was tied into the leading coil! Ummm. . .bad things to be sure!

My question is this: What exactly was happening inside the motor with the setup like that? I'm just wondering if I'm correct in thinking that the trailing was firing first, just before the compression stroke got there, and then the leading coils were firing just after the stroke had completed. Does this sould about right?

An additional note: The motor is a 13B-RE with a 60-1 (.70/1.15 A/R). At 15psi I put down 361 RWHP. I've been told that that was way low for such a setup. This would account for that, no?

Reese

thats bad! you should have been able to hear it i think

mike

never heard anything. BDC was with me when we were tuning it, and other than an occasional stutter or stumble, we never even knew it.

Wow, that is something you should have cought with the timing light when you were zeroing the timing. What happened? Also what trailing split values were you running? I know BDC likes to run them pretty close so maybe that was saving you a little?

that is very bad!!!

i would say that would def cause you to blowup!

I'm in the process of street tuning my newest map now. BDC sent it to me after we figured out what happened.

Bad things, indeed. . .

atleast you found the problem. that is the first step to a reliable rotary!