MSD Timing Twister for LS1
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Also, I wanted to get everyone's opinions on how much timing I should pull to start. I'll be taking the car to a dyno just to verify timing and a/f. I will not be buying another custom tune as of right now, since it already has one for the HCI setup. I'm looking at a 100 shot for now. Even though I probably have advanced timing due to the heads, cam, and increased compression should I still start out with the 4 degrees reduction and go from there?
As far as pulling timing, for a 100 shot, pulling 5 degrees would be really safe. I've read of guys pulling 5 degrees with a 150 shot.
Also, do you or anyone know where I can purchase the MSD Timing Twister? MSD no longer makes it, and i've called a few places that used to carry it, but they no longer have it.
Last edited by HCI2000SS; Mar 20, 2013 at 10:59 AM.
The total amount of timing taken out is set on the LNC-2000 via the Max Retard setting.
When using time based retard control, you can adjust how fast the timing retard ramps in after it has been activated. The amount of timing it takes for the timing retard to ramp in is adjustable from 0 to 3 seconds (retard build time). With a 0 second build time it takes all of the timing out the moment the retard activation wire is triggered. You can also select if you want it to ramp the timing in each time the activation is removed (ie on each shift) or if you want it to only ramp up on the first activation and then each time you trigger the retard activation after that it goes to the full timing retard setting with no ramp rate (until you power down the unit and start again).
When using MAP sensor based timing control, you can adjust the amount of timing taken out versus boost but the maximum amount is still controlled by the main timing retard setting.
The launch control part of the description refers to the 2-step operation. The 2-step operation and the timing retard are not related (you can trigger one or the other or both).
Hope this helps clarify.
Also, do you or anyone know where I can purchase the MSD Timing Twister? MSD no longer makes it, and i've called a few places that used to carry it, but they no longer have it.
The total amount of timing taken out is set on the LNC-2000 via the Max Retard setting.
When using time based retard control, you can adjust how fast the timing retard ramps in after it has been activated. The amount of timing it takes for the timing retard to ramp in is adjustable from 0 to 3 seconds (retard build time). With a 0 second build time it takes all of the timing out the moment the retard activation wire is triggered. You can also select if you want it to ramp the timing in each time the activation is removed (ie on each shift) or if you want it to only ramp up on the first activation and then each time you trigger the retard activation after that it goes to the full timing retard setting with no ramp rate (until you power down the unit and start again).
When using MAP sensor based timing control, you can adjust the amount of timing taken out versus boost but the maximum amount is still controlled by the main timing retard setting.
The launch control part of the description refers to the 2-step operation. The 2-step operation and the timing retard are not related (you can trigger one or the other or both).
Hope this helps clarify.


