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Tuning / Diagnostics -- engine and transmission Tune and diagnostics for engines and auto transmission.

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Old 06-21-2013, 04:49 PM   #26
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Command the RPM to 6200rpm
Yup. And see what happens. If you don't get your 6200shift, then your car might use mph AND rpm on the 2-3 and 3-4.

I will tell you that you might want to keep bumping your mph up even if you get the shift at the correct rpm. To me, it looks like the TCM is still using the mph to start the pressure adapts for the oncoming and offgoing clutches.
If you log Trans Slip and each of the PCS pressures, you'll see what I mean.
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Old 06-21-2013, 05:09 PM   #27
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So Dan you would not increase the RPM and MPH both right off the bat?

Also anyone know how to calculate what rpm I'd be with stock tires when I'm going 60mph, and also what gear I'd be in at at 100mph (I'm thinking 4th on this right).
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Old 06-21-2013, 08:58 PM   #28
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Do you mean at WOT John or just cruising?
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Old 06-21-2013, 09:02 PM   #29
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LOL I only care about WOT.
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Old 06-21-2013, 09:02 PM   #30
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I know mine,so far,we just raised the RPM shift,and it shift where I want it.I'm at 6600RPM now.
But I think I'm gonna raise the MPH abit also.Maybe 1 or 2 mph at a time I use my logs at the track,it gives me an idea where the MPH is at each shift.
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Old 06-21-2013, 09:05 PM   #31
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If I use one of my track logs last year with the stock converter and 3.27 gears.
At 60mph, I'm in second gear at 5800RPM
At 100mph,I'm in third gear at 6100RPM.
My shift point were set at 6200RPM at the time.
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Old 06-21-2013, 09:08 PM   #32
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Now if I check one of my logs a couple of weeks ago with a Protorque 2600 and 3.45 gears.
60mph= second gear at 6078RPM
100mph=third gear at 6416RPM
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Old 06-22-2013, 08:20 AM   #33
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Quote:
Originally Posted by Pro Stock John View Post
So Dan you would not increase the RPM and MPH both right off the bat?

Also anyone know how to calculate what rpm I'd be with stock tires when I'm going 60mph, and also what gear I'd be in at at 100mph (I'm thinking 4th on this right).
I think I'd try just the rpm first, although I was moving both MPH and RPM when I was getting mine set to 6400rpm.
Again, watch trans slip and PCS pressures and you'll see what I mean about the mph initiating clutches.

John, I'm going to shoot you an e-mail with a spreadsheet that one of the well known tuners on the HPT forums put together for rpm vs mph on the 6L.
See if that helps with your last question?
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Old 06-22-2013, 09:12 AM   #34
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Thanks john@motorsports-media.com
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Old 06-24-2013, 09:22 AM   #35
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Thanks guys especially Dan, Ron, Tim, I wrote my changes into the PCM yesterday and am ready for battle.
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Old 06-24-2013, 09:27 AM   #36
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I could never get RPM changes to affect the shift, I had to use the MPH. I have 1-2 set at 22mph, Rpm 5800 and it shifts at 6400.
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Old 06-24-2013, 09:34 AM   #37
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Yeah from what I have read, can't get there with just the RPM values, but I put the RPM values to where I want it to shift and that should only help it hit the targets.
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12.06@110 1.70 | Bolt-Ons
Mods: GPI Tune | Bo White PTP | Kooks Headers | Circle D 3200 | New Era OTR | RCR Ported Intake | 305/45R18 NT05R | Powerbond UDP

LSX Record List: http://motorhed.com/xf/threads/lsx-r...the-list.6022/
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