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Thanks for the advice, I appreciate that. With the price (and issues) of new trucks, I am determined to completely rebuild my 2004!

Hi there, My early 2004 gauge cluster has an RPM needle with a mind of its own. Typically fails when it gets hot out in the summer. I reflowed the solder several years back and that seemed to help but now its really bad. Since my truck is a 6 speed, the RPM gauge is nice to have. Do you guys...

Im thinking so.

What boost pressure does the Smarty throw a code? That must be pretty high. My Smarty Jr hasnt thrown a code at anything below 40psi. Id hate to punish me he351 above 40psi. Hell I keep it below 30psi as it is. Only been to 35psi a few times during tuning. But I agree, keeping rail pressure at...

I wonder how close the coolant gauge is, probably close id say.

Does anybody have any hard data on highway tires vs mud/snow rated tires and the effect on fuel economy? I have been running Goodyear duratracs, mostly because I live in northern Canada. While they arnt the best tire out there, they do have decent traction and are very affordable on sale...

Good information in this thread. Rod/piston balance definitely on my list of future plans.

Huh, so there was more to the story. Sounds like it got real hot.

My truck did the same thing when I first took ownership of it (bought it used). I hooked up a mechanical oil pressure gauge to confirm that it was the pressure switch. Sure enough it was. Bought a new switch from Cummins for less than 30$. No problems ever since.

I work on helicopter turbine engines. Compressor technology varies from manufacturer to manufacturer, but they ALL use some kind of method of controlling the direction of the airflow into, through and out of the compressor module. Before the compressor we have inlet guide vanes, sometimes...

Dang, thats not so good. Lots of metal sent down stream for sure. Any idea what your boost was set to? And peak? Lots of towing with your truck?

Lets stop the ******* match right here fellas. The points have been made, and we arnt increasing MPG by going down this road.

That is disappointing for sure. But even still, something isnt right here. This isnt magic. There is a reason why this keeps happening. So the best thing to do would be to install a set of 6.7 main bearings then.

Reaaaaally. Well, I learned something today then.

Wouldnt all 3rd gen engines already have the 1 piece bearing? Thats an old update.

Another question, whats the likelyhood that HE400WG is a good chinese knockoff? Anyone have access to the holset data base to run the assembly number?

Gotcha. Well I definitely don't have EGT issues either. I have to really work it to get to 1000F. Because I keep it on a low tune most of the time. By restriction I mean more drive pressure than boost. At 20psi it's 1:1, then at 25psi it's 30psi drive pressure, 30psi is 35-40psi. Etc. With the...

Well, its too late for the BBi's. All the research I was able to do turned up some of what your saying, but that the trucks that haze sometimes had the same issues before the injectors got changed. As Martin mentioned, pointing to compression or valvetrain issues. Either way, there is a good...

Good point. And as far as I can tell the intake baffle is useless. The silencer ring, not so much. It actually acts as a nozzle for bypass air to smoothly re enter the impeller.

Totally agree slowmover! A guy can spend lots of money for nothing. How the truck is driven is the biggest influence on MPG AND how quickly parts wear out. At the same time, if youve already mastered the driving part and seen how much you can get out of your machine- then I cant help to start...