PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Shift points?

Old Jun 5, 2009 | 03:45 PM
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Default Shift points?

Hey guys,
I've got my shift points set @ 6600, yet by my scans the car shows to be shifting @ 6300 + or - a few rpms. At the track with the shift points bumped to 6800, it still seems to be shifting around the same rpm. Is this a lag in the scanner or am I overlooking something? Here is the file and a quick log. Thanks for any help!
Attached Files
File Type: hpt
5-28-09 my z.hpt (461.8 KB, 87 views)
File Type: hpl
3-31-09 z.hpl (254.3 KB, 67 views)

Last edited by RZRSEDGE; Jun 5, 2009 at 07:51 PM.
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Old Jun 5, 2009 | 06:07 PM
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Probably shifting at MPH before it hits the RPM? Set the MPH higher. Just curious, are you running a cam... a stock cam runs out of power about 6000 rpm so you'll see no benefit from raising the settings?
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Old Jun 5, 2009 | 07:53 PM
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Yeah, custom cam with heads, ported FAST and all supporting mods. Thanks for the reply.
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Old Jun 5, 2009 | 08:11 PM
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set your MPH down to a single digit... It takes out one less variable, and now it will always be above that and simpley look for RPM to shift. Thats what I do and have no problems. Just make sure the REV limiter is a few hundred RPMs above that.
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Old Jun 6, 2009 | 06:53 AM
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I'll try that. Thanks!
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Old Jun 6, 2009 | 10:52 AM
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i am having the same issue. i have been told it could be an error with the TPS as well.
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Old Jun 6, 2009 | 12:05 PM
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Originally Posted by cals400ex
i am having the same issue. i have been told it could be an error with the TPS as well.
you can hook a volt meter up to your TPS and watch the voltage.
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