L28ET Distributor and Timing Accuracy

[@gabrielemorrone5477]

I see your running COP. Are those LSx coils? Im trying to do COP with lsx coils and trying to see how I should mod my MS2 V3 board. If you are running the LSx coils are you running wasted spark? Running l28et 280zx w/ Holset HY35, starting to tune boost now with water/meth

[@nathanshobe]

I'm running d585 coils, used in some LS powered trucks/SUVs. I'm also using the diyautotube trigger disk in a 82-83 L28ET dizzy with has an optical pickup. Since there is so much slop I'm going to add a trigger on the crank pulley and leave the dizzy trigger in place for cam sync. As far as ECU I'm running MS3X so I'm not much help there. You'll be burning three outputs to do wasted spark, but that's still worth it over single coil based dizzy setups.

[@ujjwalstar9389]

Hey nathan i want to ask is lugging a diesel is hard on connecting rods can it damage them...?

[@nathanshobe]

I'm not a diesel expert, but from what I know I'd say it's probably best not to drop RPMs too low while under load. Most Diesels have a fairly narrow window of when injection can take place and the injection pump is "timed" to the motor so staying within the range of which that pump is "tuned" is always a good idea. This is also why a lot of diesels run exhaust gas temp sensors, which gives a good indication of load on the engine. All that said, if idle is 500 rpm, I wouldn't be concerned about cruising along at 900 if the engine feels like it's running smooth. An engine is going to start bucking and sounding angry before any connecting rod breaks at low rpm. :-)