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Old 03-08-2013, 05:16 PM   #1
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Default RPM drop between upshifts

I have a Reverant enhanced MSII running a BRP intercooled MP62 supercharger. Recently I installed a FM Happy Meal with their 13.45 pound flywheel. When the car is warm the revs don't drop when the clutch is pushed in to upshift (foot completely off the accelerator). Before I make any changes, can anyone tell me if this is controlled by the settings in the Over Run Fuel Cut menu? I'm still getting up to speed with the nomenclature in TunerStudio. Thanks.
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Old 03-08-2013, 05:33 PM   #2
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post a log of it happening. could be some of the idle settings.
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Old 03-08-2013, 05:39 PM   #3
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That's our newest feature: automatic rev match.

J/K. Sound like improper idle valve tuning. Post your tune file and a short datalog showing the problem please.
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Old 03-08-2013, 06:21 PM   #4
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You need to adjust the Leave Valve Closed Above and The close delay values in your idle valve setup.

Rev has them set to stay open which causes the behaviour you describe above.
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Old 03-08-2013, 09:08 PM   #5
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Did this start immediately after the clutch change? You sure this isn't a physical problem with the clutch not disengaging properly?
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Old 03-08-2013, 10:16 PM   #6
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Thanks for the input, I'll take a log and post it tomorrow.

It did start happening after the clutch change but I suspect it is more to do with my settings being done for stock components. Clutch is disengaging, when I'm stopped with it in gear the car doesn't move. However I'm not ruling anything out at present.
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Old 03-14-2013, 06:47 PM   #7
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I have to apologize for not getting back to this as I said I would. I took a log but it was about 30 minutes worth and I knew that would be a pain to ask anyone to look through. Weather and family conspired against me until today, so here's my 10-15 minute log attached.
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File Type: msl 2013-03-14_16.50.41.msl (1.19 MB, 86 views)
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