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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #21  
Old 05-04-2011, 04:01 PM
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Quote:
Originally Posted by Crash View Post
So you run superchips and it allows you to lower torque management?
Yes, IF you purchase the Advanced Trans Options for $40.
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  #22  
Old 05-04-2011, 08:40 PM
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Thanks for the info Dustin, I have been doing some reading on S/C web site. So what do you run your TM set at?
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  #23  
Old 05-05-2011, 11:27 PM
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I started with 8% and now I'm at 6%. Shifts good, don't think I'd go any lower than 6%.
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  #24  
Old 05-13-2012, 08:41 AM
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Originally Posted by dustin72 View Post
I tried 6000rpm WOT shift points today. Dropped 2 tenths from the 5500rpm setting and also picked up 1-2 MPH. Runs were more consistent as well. 6200rpm setting is next.
What were the OEM shift points?

Just so I understand this......when you adjusted from OEM to 5500 rpm, your time was slower by a tenth?

When you switched from 5500 rpm to 6000....you went faster by 2 tenths....is that correct?
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Old 05-15-2012, 06:12 PM
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Bueler? Bueler? Bueler?
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Old 05-15-2012, 10:03 PM
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My 1-2 2-3 shifts are set at 6200 with my trinity and I couldnt be happier.
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Old 05-16-2012, 06:41 PM
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My 1-2 2-3 shifts are set at 6200 with my trinity and I couldnt be happier.
Stock valve springs?
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Old 05-20-2012, 09:45 PM
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What is the highest we should rev with a stock valvetrain?
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Old 05-21-2012, 07:32 PM
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I've heard the first limit on the Hemis isn't the valvetrain but instead the harmonic balancer on the crank. It's been known to fail as low as 6400 rpm I've heard. That's why my rev limit will be set at 6300 when (if) they ever release a tuner.

Also, as far as setting shift points, to make a fairly accurate guess, some math would have to be done for each gear change, as well as knowing your peak horsepower. Each gear change may need to be made at different points in order to keep you nearest the peaks for the longest amount of time. Also, forget torque peak when drag racing. Hp peak is where you want to stay. And before anyone yells foul, remember HP is just torque relative to rpm.

In my case, my power peaked around 55-5600. This means the perfect shift from first to second would be around 62-6300. But wait, that's only assuming that the power drops off after peak at the same rate it rises to peak. That's probably not the case and if I had to guess, these trucks would probably do great shifting at 6500. I won't do it, but you guys feel free.
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  #30  
Old 05-21-2012, 08:51 PM
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Quote:
Originally Posted by RTBenny View Post
In my case, my power peaked around 55-5600. This means the perfect shift from first to second would be around 62-6300. But wait, that's only assuming that the power drops off after peak at the same rate it rises to peak. That's probably not the case and if I had to guess, these trucks would probably do great shifting at 6500. I won't do it, but you guys feel free.
Thank you for the info on the harmonic balancer. This is the first I've heard of that issue.

Above you mentioned your power peaked at 5500-5600, making your perfect shift point 6200-6300. How did you come to this conclusion?

I'm not disputing you, just trying to understand how you figured that was the optimal shift point.
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