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Originally Posted by Arthur Dalton
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To what?? Resistor wires ???
Benz wires have NO resistance.. they are solid core wires ..the resistors are on the ends of the wires in thew plug connectors..so, you are putting resistor plug connectors on top of resistor plugs..doubling the resistance.
If you eliminate the plug connector/resistor end, and leave the solid core Benz wires , you may come close to stock with a resistor plug. But changing wires gets you nothing b/c you can not get wires with LESS resistance than the stock wires..
The reason Benz uses solid core wires is b/c resistor wires have resistance by the foot of each wire , so every wire , being different lengths, has a different resistance. benz find that unacceptable..and solid copper core wires are far superior ...........every plug gets the same resistance [ and thus, the same voltage], regardless of the differing lengths of plug wires. The triggering ECU likes that resistance consistancy for each and every cylinder.
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We have been discussing this in the SL forum.
What I found, was that the original wires on our '72 SL had resistors built into the end that plugs into the distributor cap. These are not removable ends, so I cut one apart and found a 1.6 kohm resistor inside. The total resistance of the wire from end to end was 8 kohm.
I bought a set of Bosch Premium Wires (Opti-Layer Mag wires). These have brass or copper metal ends connected directly to the wire and no apparent built in resistors. I measure these at 1.6 kohms end to end.
It would seem that using resistor plugs with the new wires would probably not increase the overall resistance of the wire/plug combination. (But, I don't know the resistance of a Bosch 7500 WR7DC+ plug. Maybe someone could measure one? - Mine are installed!