Setting base timing in a '99 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 03-21-2012, 11:30 AM   #1
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Default Setting base timing in a '99

Can someone explain the steps on how base timing is set on a '99 when installing MS?
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Old 03-21-2012, 11:38 AM   #2
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If you bought a Reverant MS, then you most likely don't need to mess with it. Start the car and when it's idling, shoot the balancer with a timing light and compare it to the idle cells in your spark table.
The timing on a '99 is different than on a 97-older, simply because you can't physically move anything. The CAS on a 97-older is adjustable, where as the '99 crank trigger is in a fixed position.
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Old 03-21-2012, 11:52 AM   #3
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Quote:
Originally Posted by thirdgen View Post
If you bought a Reverant MS, then you most likely don't need to mess with it. Start the car and when it's idling, shoot the balancer with a timing light and compare it to the idle cells in your spark table.
The timing on a '99 is different than on a 97-older, simply because you can't physically move anything. The CAS on a 97-older is adjustable, where as the '99 crank trigger is in a fixed position.
You still need to set up the trigger angle correctly on the NB's. Rough instructions are below.

1. Install the MS in the car.
2. Start the car.
3. Go to spark settings and set it to fixed 10 degrees.
4. Hook up timing light and check timing.
5. Adjust "trigger angle" until it makes the timing show up as 10 degrees on the engine timing marks.
6. Turn of static timing.
7. Profit!
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Old 03-21-2012, 11:56 AM   #4
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Perfect, just what I needed to know.
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Old 03-21-2012, 12:32 PM   #5
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Quote:
Originally Posted by shuiend View Post
You still need to set up the trigger angle correctly on the NB's. Rough instructions are below.
Betcha if he bought a reverant unit he doesnt have to.
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Old 03-21-2012, 12:42 PM   #6
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Originally Posted by Braineack View Post
Betcha if he bought a reverant unit he doesnt have to.
Is the trigger angle the same on all nb's?
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Old 03-21-2012, 12:42 PM   #7
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It should already be within 1-2*, however it is always important to verify it, especially in boosted applications.
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Old 03-21-2012, 12:43 PM   #8
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Quote:
Originally Posted by shuiend View Post
Is the trigger angle the same on all nb's?
Yes, within 1-2* as noted above.
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Old 03-21-2012, 12:43 PM   #9
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It is a Reverant unit. Can you explain what you mean Brain?
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Old 03-21-2012, 12:44 PM   #10
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NM, you all posted while I typed
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Old 03-21-2012, 12:50 PM   #11
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Quote:
Originally Posted by shuiend View Post
Is the trigger angle the same on all nb's?

because of the design it's pretty damn close like reverant noted.
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Old 03-21-2012, 01:00 PM   #12
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Quote:
Originally Posted by Reverant View Post
Yes, within 1-2* as noted above.
What have you found is the "correct" angle? I know on my car with MS3X I have my trigger angle set as +8.
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Old 03-21-2012, 01:04 PM   #13
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5* +/- 1*.
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Old 03-21-2012, 01:12 PM   #14
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Quote:
Originally Posted by Reverant View Post
5* +/- 1*.
Interesting I will check my timing again when I get my car back up and running this weekend.
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Old 03-21-2012, 01:13 PM   #15
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Quote:
Originally Posted by shuiend View Post
What have you found is the "correct" angle? I know on my car with MS3X I have my trigger angle set as +8.

this may be different due to your input method which isn't the same as the diypnp.
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Old 03-21-2012, 01:22 PM   #16
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This. If you are triggering off the falling edge rather than the high, you may be 1-2* off the number I quoted.
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