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#1
Tue, April 28th, 2009, 09:17 AM
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Less talking...more driving.
 So, as far as the 'throttle response' goes......... There are a couple of ways to go about it. Just keep in mind that increasing the low-APP sensitivity is REALLY going to wreak havoc on your cruise control. The potential is there to really make cruise control very user-unfriendly. At 70 MPH yesterday, there were a few instances where I wanted to turn the cruise off because it was surging. But then again, between the "low boost fueling" being lower than stock at low boost levels and my TN turbocharger that runs 2 PSI of boost at 70 MPH, I may have problems that you won't. The cruise had to adjust fuel rate a lot just to maintain speed and once there was a little boost, THEN the fuel would start coming on. If you're wondering about the "dead throttle" for a while (until oil temperature comes up), look a little bit at fueling maps that base fueling on oil temperature. I don't know if I'd do any adjustments to those however as the SOI is pretty radical in this tune (although not as high as some high-HP tunes) and it's fairly important to be up to operating temperature before getting too excited with the skinny pedal at that point.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. 
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#2
Tue, April 28th, 2009, 10:45 AM
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funny you mentioned the dead throttle... It is pretty significant when I first start up in cool weather.. Actually had to flip over to another tune to get out of the driveway a couple days ago.. didn't want to wait for the truck to warm up a bit. I did buy 5w40 Rotella synthentic oil for my next oil change... I want to see what difference that makes too... currently on Delo 15w40 dino oil....
Also considering going to the Flex a Lite 278 electric fan setup.... just seems there would be some good advantages to it...
going to try a couple tweaks to the Cruise control parameters too... just got to squeeze in computer time between watching my kids.. If my understanding is correct the early SOI improves fuel economy right? too early and you get the DP 80E effect  
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DJ Phoenix (my modded) Hi-1200/240Tow/75FS/80DD/100/140SS +Minotaur ASE Master Auto Technician  2001 Ford Excursion 7.3 4x4 Projects. 1970's Hustler and Max II Amphibious ATV's
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