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Here the relative humidity can change a lot from day to day, and that has more of an effect on mileage and power than you would think. Cool and dry=more pwer and mileage, BUT cool and humid it gets bad. You should see it at 3500' elevation, 101 degrees, and high humidity. Black Smoke!!!

I also just got the award from the local HiPo, luckily I saw him and slowed down to 87 before he clocked me. On these W. Texas back roads if the coast is clear I hold her steady around 95. BUT, I do slow down to the speed limit when other vehicles appear for saftey. I admit I drive way too...

JJohnson, does you truck have an Infinty stereo? I'm interested in the sub(and the sat. radio for that matter) but it seems like I read something about there being a trick to adding extra speakers to an Infinity, I can't remember for sure. Thought you might know.

I borrowed a K&N today and pulled out the snorkel, man that changes the sound of things! It looks like that was good for about 50 degrees less EGT's. It *SEEMS* to have helped the turbo spool up quicker, but I could be being fooled by the new sound. You guys with experience..... how much will a...

Update Well, I rechecked everything, couldn't find anything wrong, moved the pyro to pre-turbo and drove it all day as normal. THEN tonight I ate supper and went BACK out and romped on it again. This time... . 31 psi boost and 1400+ egt(for a short while). Thats more like it. I don't know why...

The guages are Autometer, and it did say post, I asked around and people local said that so you can tell when it is O. K. to shut it down without coking the oil in the turbo. I have a tractor with the 8. 3 Cummins and a factory pyro and it is post-turbo, But I agree with you guys, I'm moving it...

Got the PE Comp and Autometer gauges installed last night/today. Seems great so far. I can get around 25 lbs boost empty, with little smoke unless in 4-5 with the sub-setting high. I have a ?? about EGT though. The instructions that came with the pyro said for turbocharged engines put the...

O. K. , I'm a newbie... ... what is this software and what does it do?

In our trucks??? After reading this disturbing info I did some checking and found out that due to lack of EPA regulations in Mexico the Saltillo plant is permitted to use DHMO in the cooling system of Cummins powered trucks because of the need for increased cooling of the powerful...

First post!! Picked up my 2001 six speed HO just 1500 miles ago. It's getting smoother and easier to shift, it was pretty hard the first few 100 or so. It's taking a little getting used to, but I like it so far.