Vais01

Also the US standard for cetane values within diesel fuel is 40. With 20% blend cetane jumps up to a whopping 41.

I sent the chart to. Now the values are are for no biodiesel, 2%, 5% and 20%.

Maybe it won't work because I'm using my cell phone.

I have pulled the carpet back and removed the seats for my deadening material. It was a major improvement. Also the TC-W3 2 stroke works I can attest to that. As for me I have a muffler on the truck and a HO VP44 on an SO truck with DFI 7X.009 SAC injectors. Plus a Borg Warner 62/68/.80 wastegated turbo with the FMW compressor wheel. She whistles a bit but I can't hear it much anymore due to the deadening in the truck.

Mike apparently 2%-20% only adds between .2 to 1.2 points in cetane values. That I don't have the chart for but I do remember the values. As far as BTU heat valve in 2%-5% biodiesel blends the BTU of heat only drops about about 2% if I remember correctly. It's a very small change.

Mike how do I post a picture. I'm having a bad tech day lol.

When I get home I will try to make a write up. I don't have photos but I will give it a shot with some good instructions.

I honestly don't remember how I found the PDF either. It was from a government page.

It's from a huge PDF.

Sorry if this is not the place to post this but I have found a chart with the latest fuel HFRR values with the addition of bio fuel. Since most fuel stations will have between 2% and 5% biodiesel I thought this would be great info for us VP44 powered trucks. I am having difficulty posting the chart if someone can help I will get it up asap.

Before I forget the other key area to help with sound is the cowl area. I'm going to see the temperature of the cowl area to ensure that the material will not become hot and delaminate.

AGPturbo that's unfortunate. I had a similar issue that I remedied using butyl rubber sound dampener mats from Noico(can be ordered from Amazon) and Second Skin Damplifier Pro in the door panels. According to many the common issue is structure borne sound the butyl rubber mats helped tremendously with this issue. For a 2nd gen quad cab or extended cab 34 Sq Ft of material is required for the task. The back wall is the key cause of the drone and the transmission tunnel and driver/passenger floor pans are also key areas. I wish I knew more people had this issue because I could very well write a thread about it.

Mike's breather mod is great. I myself have an oil/air separator hooked up that is a breather/catch can. The breather filter gets cleaned once every month with the K&N filter solvent and the catch can drained every time I fill up. The most expensive way is to buy the Fleetguard breather that utilizes an oil drain back to the crankcase. Like I said it's effective and expensive. I myself plan on using the Fleetguard setup in the future but for now my catch can/oil separator breather works well.

Well I'm amazed that the VGT did not clear up the smoke but at the same rate I did run a HE351VE for some time. What I quickly realized was in my trucks configuration at the time was the VGT could not flow enough air unless I choked down the vanes quite a bit. The negative was when I let off the throttle with the vanes choked down I would receive a notable and multiple bark. I was running a Fleece VGT controller and I had created several maps and found anything over 33 PSI of boost I would receive this bark when I let off the throttle. On modern trucks like the 6.7 Cummins the boost tables, fuel maps and several other parameters are used to set vane position to achieve the best possible turbo response, boost and keep the turbo efficient. If your running a Fleece VGT controller I still have the maps I may be able to send you so you may program the turbo for better results. Now as far as smoke levels with your DFI 7x.009 injectors what nozzle style did you use? I myself am running his SAC injectors and see about the same smoke level but I also am currently running a Borg Warner 62/68/.80 turbo with the FMW compressor wheel. At wide open throttle I do produce a haze and my EGT's are manageable.

Well this is my first post on this site, so here goes. First off 20 MPG is great fuel economy for a 5.9. Could it be better sure but as it has been mentioned earlier in this thread 20 MPG is nothing to be worried about. Your tuner may yield additional fuel economy on a lower or greater setting. Playing with the settings may help you net an additional 1-2 MPG. Also if your running factory injectors having them POP tested and set at the Cummins spec of 310 BAR plus or minus 5 BAR can help too. Using quality oils can also help with fuel economy but you may only gain 2%-5% at most. Propper tire inflation will of course help your fuel economy. Secondly your EGT values are in the normal range. Myself personally I have larger injectors and a different nozzle type not used in the original ISB 235 engines and I usually sit around 650 or so at around 65 MPH. At 75 MPH I'm usually in the 725 area. So just judging by what data you have shared I'd say your doing great.