bad egts will kill your engine, and means that you're just puking fuel into the cylinders so you won't gain any speed

 

If you have the pedal to the floor and you are losing speed while blowing smoke, your exhaust temps are probably getting pretty high which could cause serious engine damage. I would invest in a pyrometer, could prevent you from turning the truck into a lawn ornament.

I was curious about your tires/gears because if you had been running oversized tires with a tall gear ratio that would really kill you on hills.

The N/A motors aren't going to thrill you on the hills, that is for sure. I don't know how steep your hills are and most of the hills I travel on are really curvy with low speeds so I have never had an issue holding 35-45mph in a turbo or N/A truck.

Does your tachometer work?

 

how do you fix bad EGT readings?

Been driving the truck every day just to get used to it, and see what other kinks may arise, nothing else motor wise, seems to run fantastically, it loves drinking fuel though, and it is blowing some white smoke on startups, and chillier days until it warms up now. almost seems like I am dumping fuel into it, (white smoke means burning rich, correct?)
at the rate it is using fuel, with the white smoke, I am thinking new injectors are in my future..... would this effect the EGT? (I'm thinking if I am burning fuel at a higher rate than engineered for, my exhaust temp is probably running higher than normal as well?
am I thinking right?

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I do have a tach, it mases out at 4300, I never let the truck go over 3100 rpms, it is climbing the dreaded hill better lately with the warmer temperatures, when running this particular hill, I am usually running around 70 at the bottom, in 5th, which is just basically overdrive, at around 2 grand to 22 hundred rpm, I"ll let the truck get down to between 1500 and 1400 before I down shift, (I use this truck for hauling water (approx. 4000 lb per load) and it doesn't make a difference if I have the water tank with me or not, it runs the same with or without the extra 4000 pounds of water, so compression and power doesn't seem to be a concern) I am beginning to think I am overloading with fuel, since I have not changed the injectors, or adjusted them, since installing the new IP.
any other suggestions?

 

If your exhaust temps are getting you high(which a pyrometer will tell you) then the only thing you can really do is back off the throttle. You can turn down the fuel screw in the IP as well and make sure you have a clean air filter and unrestricted air flow.

White smoke on a cold start is normal, you should get a puff or maybe even a few seconds of white smoke on a dead cold start. My truck smokes a lot(15-30 seconds) when it's cold due to some underperforming glow plugs and larger injectors. How old are your injectors? If they have a lot of miles on them, the spray pattern could have deteriorated resulting in your poor mileage.

 

come to the conclusion that I need to replace the injectors...
any suggestions on some good ones? or should I just go to my local parts store and get the ones off the shelf? any particular rate, gap, flow, pattern better than the others? and for what reasons??
Actually planning on turning this thing into a local eyegrabber with future modifications, so I might as well start with the fuel system...

 

If you're going for power down the road, might as well get a set of moose misters now, also, when you pull your old ones out, get them tested to see what they were doing to your engine. I did mine in the shop last week. NOT a single one sprayed, it was a stream

 

Run a gallon of ATF in your tank and run the hell out of it ... i run mine to 3400 then shift ... YOUR NOT running it to 4300 Rpm's .... mine is built and i woul never dream of doin that .. 4K and it wouldnt be good .... you need stiffer Valve springs and pump work to go that far up ...

Runnin mine 5 years now ... ( before i needed HG's ) loves atf and a bit of good filtered waste oil ( filtered to 5 micron) ... I have a build thread on the IDI section .... it was clean as a whistle in side ...

Movin and will be gettin it running before snow fly's again .

 

through it all .. sounds like either a lack of ( either fuel or IP pressure ) , or timing is messed up ...

Have you p[layed with the fuel screw in the IP ??