Got back from dyno made 389rwhp and some problems.

[1986.5supra_kid]

first dyno tune on my NA-T mk3 supra. and im having some sort of breakdown of ignition around 3.5k to 4.5k rpm. tuner recommended i start with signal wires from dizzy to ecm(maybe noise from spark plug wires etc) or maybe bad pick up in dizzy?

Then i was wondering about whats the 2jzge distributer type system upgrades? stronger coil? heavier plug wires?

i have the 5mm stock plug cables and the 4runner cap. looking to use the older 4runner cap(heavier that 5mm cables) but idk where to get wires to custom fit my application?

 

[IndigoMKII]

first dyno tune on my NA-T mk3 supra. and im having some sort of breakdown of ignition around 3.5k to 4.5k rpm. tuner recommended i start with signal wires from dizzy to ecm(maybe noise from spark plug wires etc) or maybe bad pick up in dizzy?

Then i was wondering about whats the 2jzge distributer type system upgrades? stronger coil? heavier plug wires?

i have the 5mm stock plug cables and the 4runner cap. looking to use the older 4runner cap(heavier that 5mm cables) but idk where to get wires to custom fit my application?

I think MSD sells plug wires for custom lengths.

 

[1986.5supra_kid]

When it breaks down the tach bounces around. Is this signal or the sparks?