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This is due to the torque converter allowing more slippage during launching. Still in all the low band (1,500) should be slightly retarded for launching. You should never be cruising near 1,500 realm really being it well below the torque curve of the engine. Like myself I design to get most of my travel time around 2,000 RPMs @ 66 MPH in 5th gear. One of the few factors of why I was able to break the old high mark of 27.2 MPG (Edge Comp and +50HP Injectors) now with 28.04 MPG is my high mark. (Quadzilla and +150 HP Injectors).When you get the timing dialed in you find the EGT drop like a rock. My 55 MPH is super low at 500*F even 65 MPH float about 550*F to 600*F. Two things I'll say timing is the MOST important setting. Then the fuel map should NOT just ramp up from low fuel to max fuel. Again timing your going to have to work with it till its figure out and provides the LOWEST EGTs. Fuel map you'll need a defuel realm to control smoke. Then I would create a STOCK fuel zone where most of the normal driving occurs. Then a POWER mode where when boost rises past your cruise mode it kicks in extra power. Since I live in the mountains and climb hills and grades (7 to 16%) I needed a wide cruise realm between 5 to 15 PSI which is all set for 100% fuel. Now above 15 PSI the fuel ramps up to 150% by the time it hits +30 PSI. Again this design is capable of 24 to 28 MPG. Just look 425 Miles on the trip and just slightly above 1/2 tank. Just quick rough math 1/2 tank is 17.5 gallons. 425 / 17.5 = 24.28 MPG !!! Quadzilla Adrenaline (My custom tune), 150 HP injectors (popped at 320 bar), HX35/40 Hybrid Turbo (60/60/12), 245/75 R16 tires (final ratio to the ground 3.69:1) Another trip... After all my running around I was down to a 3/4 mark and netted 28.04 MPG.

Lol.. 60 to 70k a year here. Back with dialysis runs. Heck I'm putting almost 1k every couple weeks on Thor.

I finally return from up north getting my transmission back. Yup I wore out the gears for the input and counter shaft. Look closely the input shaft had worn through the hard facing and then weaken the teeth and broke off. Again when this failure occurred I had the Quadzilla on level 2. Remember all these gears now had 435k miles and just plain wore out. Jason told me my previous rebuilder (Weller Truck, Boise)did a good job of rebuilding last time and he seen all the updated stuff in the transmission. There isn't much left to upgrade... As for Jason Hammer I talked to him and he's more than wiling to join the forum and help other manual transmission owners. He's very knowledgeable and can work on ANY manual transmission. He is self taught as well. Now here in the future I'm planning on going back up to Spokane, WA and learning from him. He gave me a stellar price on the rebuild and 1 year warranty from this point on. Next step to re-install the transmission. Input shaft and damage... Here you can see the wear that weakened the gear teeth after the hard facing was lost. As for the NV4500 transmission the counter shaft is one piece. Nothing to do but change the entire shaft. Then the gear itself...

Thanks for the valuable info Threadzy! I still have a nice set of EGT and BOOST gauges in a 2 pod pillar mount, but will want to get a matching fuel pressure gauge and a triple gauge a pillar pod mount. They are ISSPRO gauges.