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Shift light & rev limiter settings with Dyno Numbers

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Old Nov 3, 2022 | 12:09 PM
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Default Shift light & rev limiter settings with Dyno Numbers

Hey guys,

6.0, T56 Magnum, 93 pump, 78/75 gen 2.5.

With these dyno numbers here, where would you set your shift light and rev limiter? The motor is "good" for 8400 RPMs per Tick Performance when buying the rods and pistons. The car made 780 at 6800 rpm. The rev limiter is set at 7k right now, but I've read some people saying to set the shift light 500rpm above peak power. I can up the limiter to 7500 and set the shift light at 7300 but was curious what your feedback is.





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Old Nov 9, 2022 | 07:33 PM
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Depends on if it carries power out past peak or not. If it carries it out, the later you can shift and will drop you back in a meatier part of the torque curve.

If it falls off a cliff I'd probably shift a little bit after peak.
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Old Nov 9, 2022 | 08:01 PM
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You'd have to look at the whole torque curve to know, not just peak numbers.

Torque applied at rear tire is what moves your car. Each gear shift is about 30% loss of torque just due to gear ratio changes. Unless you can gain +30% engine torque at a lower rpm.... there's no point shifting yet. Things are really simple with a manual trans ---> Rev the crap out of it.
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Old Nov 10, 2022 | 07:36 AM
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This is the dyno curve he sent me. It just confused me that both are in red lol


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Old Nov 10, 2022 | 09:00 AM
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That dyno graph is in MPH. It would be alot easier if it were in RPM.
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Old Nov 10, 2022 | 10:08 AM
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Agreed, thats why I posted the first picture, because it's all I had with RPM in it.
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Old Nov 10, 2022 | 10:32 AM
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Originally Posted by 70DusterDev
Agreed, thats why I posted the first picture, because it's all I had with RPM in it.
The pic showed power and torque at a given rpm. We need the whole rpm curve.
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Old Nov 10, 2022 | 10:33 AM
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I know lol but those are the only two pics I got from the dyno. So best guess and SOL on more actual data lol.
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Old Nov 10, 2022 | 10:37 AM
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Originally Posted by 70DusterDev
I know lol but those are the only two pics I got from the dyno. So best guess and SOL on more actual data lol.
The tuner sent you a pic of the dyno run in mph and there's literally a button that says graph in RPM. Tell him to click the button and take a pic. lol.
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Old Nov 10, 2022 | 10:40 AM
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I'll ask. But he's not super responsive with emails. Does a great job tuning but is super busy so the response side if things is pretty rough.
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