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  1. 5.9

    S300 and S400 Rebuild kits

    Hey guys, so this last weekend with my new tuning from UDC Pro I toasted my s475. Who should I go with to get some good quality rebuild kits?? Also do I need to upgrade the thrust bearing in the s400 to a 360 or just stay with the 270?? I already plan on doing a 360 on the s300 so that is not an...
  2. 5.9

    Rail Pressure to High

    Hey guys tuning question again. I have my rail pressure set to max out at WOT at 23,000 psi. I am having trouble with it going to 26k and 27k at only 65% throttle, and I don't know why it would do that. Does the rail pressure change due to ambient temp. or to elevation?? I live in Colorado and...
  3. 5.9

    Cummins Timing

    Hey guys I am tuning my truck with the Smarty UDC and wondering what is the safest MAX timing that I could use for a hot street tune. I will be driving this tune most every day but I don't wont to lift the head either. Any suggestions??
  4. 5.9

    NV5600 to 48re Swap

    Hey guys, just wanting to know what is all involved with a manual to auto swap and if it would be worth the money. Truck is a 2005 Dodge, I think I am pushing my luck with my NV5600 at 800hp. The end goal is 1000 hp and I want to get one from Firepunk but I don't think I could afford to have...
  5. 5.9

    New from Colorado

    Hey there everyone, new to the whole forum world and been in the truck world for about 4 years. Truck is a 2005 Dodge Cummins 2500 with a little over 200,000 miles. Current setup is pretty straight forward with 62/65 over a 75/96 compounds, magnaflow 5 inch straight pipe exhaust with a FTE...
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