Ive seen it done to Gen 1&2 small blocks but has anyone done a conversion on a prelude before? What do you all think about it? Link to what it is Compu-Tronix. Electronic Ignition Systems
Old Car had a DIS. More trouble than it was worth. However not having spark plug wires was pretty sweet. Yop the coil connected directly to the spark plugs by using a coiled piece of copper that sat inside a plastic housing.
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No one is even slightly interested in this idea???
It's been discussed before. The problem is that the ECU still only outputs a single ignition trigger signal. You would need an ECU with 4 independent coil drivers to properly do a DIS system.
Keep in mind that DIS is also not the same as coil-on-plug either.
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BOTH applications still use the distributor to an extent, the distributor tells which plug when to fire, though they eliminate the need for the rotor to make superb contact to the cap inorder to get a good spark, the cap/rotor is more of a signal switch instead of also supplying the spark
It's been discussed before. The problem is that the ECU still only outputs a single ignition trigger signal. You would need an ECU with 4 independent coil drivers to properly do a DIS system.
Keep in mind that DIS is also not the same as coil-on-plug either.
Is there a ECU that has 4 independent coil drivers?
BOTH applications still use the distributor to an extent, the distributor tells which plug when to fire, though they eliminate the need for the rotor to make superb contact to the cap inorder to get a good spark, the cap/rotor is more of a signal switch instead of also supplying the spark
Thanks for the link, yeah i figured the distributor will still work as a remote otherwise we'd have a hole in our engine.
Is there a ECU that has 4 independent coil drivers?.
yes a standalone ems unit, like aem series 2. Still not worth the effort in my view. All that extra work for what? A product that is just as reliable as the an upgraded stock distro coil system.
If it were an rb25 or 26 and it was gonna be beefed out then it would be worth considering.
It's been discussed before. The problem is that the ECU still only outputs a single ignition trigger signal. You would need an ECU with 4 independent coil drivers to properly do a DIS system.
Keep in mind that DIS is also not the same as coil-on-plug either.
Sometimes it is.
Old car had 2 Coils with 2 outputs each. No distributer. The Ignition pulses were generated by a CAM sensor, sent to the Ignition module where it was separated into 4 pulses and spread to each coil which were mounted inside a housing on the underside of a cover that sat on top of the Cam towers. The spark traveled about 3 inches straight down into the spark plug. So it WAS a DIS because it didn't have a distributer. and it was Coil to Plug because it didn't have wires. FYI The older v6 z24's that were 2.8 and 3.1 liter engines were also DIS. It isn't as reliable as some people wish it was.
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