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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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  #1  
Old 06-10-2013, 09:11 AM
NickGalloway NickGalloway is offline
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Default Pressure line Booster

So apparently, the $50 sonnax line pressure booster is just a 2.2 k Ohm resistor. I researched it for a while and found a DIY to make your own, but as i was making it i realised that all I needed to do was add the resistor to the factory wiring. Boom, $5 pressure line booster. 10 min install.
If you are not aware of the DIY, locate the plug on the transmission (45, or 545 rfe) and use the two wires located towards the front of the truck. There is a solid colored wire, and a white one with a stripe on it. If you're looking for a cheap easy MOD i would recommend doing this.
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Old 06-10-2013, 10:16 AM
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BlackRamHemi BlackRamHemi is offline
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I've had the Sonnax for a few years now,
The effect only lasts a couple weeks until the PCM adapts and goes back to normal.

You have to remove it and drive for a week or so without it,
then re-install it to get the kick-in-pant shift firmness again.
Kind of a pita after a while so only did it when a track day was coming up.

My new MGH L&M Customs tranny will get a "Real" pressure boost soon to run with my RIPP supercharger.
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Old 06-11-2013, 01:10 PM
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RamTex RamTex is offline
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Nice dude you decided to go with MGH congrats and smart move BTW!!!!
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