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Thread: Gen 5: 2016 -> Gen 5 Ignition timing
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post #8 of Old 01-03-2018, 06:25 PM
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Originally Posted by ZX10RArcher View Post
These two points x 100.

Every bike will respond to timing maps differently. Motors respond differently to AFR, timing, modifications, fuel, etc. Just throwing or pulling points of timing based on what such and such says isn't going to do anything for you. On my personal gen 5, I have timing added and pulled - on others bikes I have no timing added period while I have timing taken out on others. Every bike will respond differently.

Perfect example; Rickey Gadson called me one day when he was working on a gen 5 for someone he was working with. I said, I don't want to give you my timing maps simply because there is such a variation bike to bike based on the several I have worked with. He had tuned the bike to make peak power across the RPM range at a bunch of different throttle positions by AFR. He was on me and on me so I finally gave in and said fine, I will send it to you, but it is on you if the motor pops :D Sent him my timing map from my personal bike and he plugged it in - bike instantly lost power. What that says is the timing is too far advanced and beyond MBT for his setup and actually predetonating (knocking). If you were to look up some of the maps made by the N/A guys that are running 9/10s blasts down in Florida, they are actually running stock timing maps; some even less than stock. More timing =/= More Power

Timing is one of those things that are best set on the dyno (or with a rear wheel torque cell and data logger) so you can see the actual output and observe power output compared to timing adjustments to determine MBT. Just doing it by feel or by what someone says is an express ticket to heart break. This is often why you will see canned flashes vary so much in power output from two bikes using the same canned flash - 1) The AFR is almost certainly off if the fueling was adjusted in the ECU 2) The bike does not like the timing map if adjusted in the ECU. Every bike will respond to tuning parameter changes differently even if those two bikes have identical modifications. This cannot be stated enough.

Additionally, like Bun1t said, the 5th gen is not retarded in the timing department like the 4th gen was (along with STP restrictions). So if you're not making timing adjustments on the dyno for your motor, your mods and your fuel - things will not go well. Best to keep them stock or if you're making pulls on a drag strip, advance them slowly and look at data logs (if equipped with a data logger) and compare your time/speed between runs. If you start to advance it too far and past MBT, you will see your speed and times come down; dollars to doughnuts if you back it off some, you'll see your time/speed come back up.
Hey Anthony, sending you another question

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