My 88 TC has an ignition break up problem above 11 pounds of boost. I have a boost control valve so I have set the boost at 10 psi and everything is normal. Timing is set at 12 degrees, plugs and wires are new. Dist cap looks good. Here's the kicker, if I shrink the plug gap below .030 and advance the timing, it runs good up to 15 psi or where ever it starts to detonate depending on air temp. I'm thinking a coil. Any suggestions would be appreiciated.
Use only motorcraft ignition parts on the 2.3T Sounds like youve narrowed it down, coil,plug wires. What brand of wires?
I had a set of Taylor wires on it originally, but then put a brand new set of Motorcraft wires on it and it didn't change.
sounds like the boost is blowing out the spark. id say gap em down a bit and see how she runs.
where were you trying to set the gaps? generally, there is no reason to be wider than .030" on these motors.
Plug gap spec is .032-.036. That would be my reason.