New IP = New kind of truck!

[Timthetoolman]

This weekend was my first long pull of my 14k fiver. 400 miles with my new IP. Man this is like having a new truck, power out the butt.

Running down the interstate at 70 miles an hour at 2400 rpm in overdrive and 900 degrees egt, the truck loved it and so did I, big hill comming up, no big deal she just kept on rolling, I did have to blow by two Dodge trucks that were holding me back pulling RV's.

There is one hill in Chattanooga that has always kicked my trucks butt, after running for two hours I hit the hill as always, running shot at 75 mph. Never have I got over this hill any better than 35 mph, and in 3rd or 2nd gear at the top, I rolled over the top this time at 50mph in 4th gear, at half throddle, (egt's at 11,000) I screamed out loud, scared the dog and the old lady, what the heck is wrong, nothing I yelled as I patted the dash board, the old girl is smokin. :Sly

Now all I need is an intercooler so I can use the rest of the go peddle.

So cool.

 

[Exekiel69]

I know that feeling, it is . Also, egt's 1,100 is what I saw on PA last weekend pulling a trailler full of steel, and the best part is it didn't cost Me much since I burned veggy all the way.

 

[Camarogenius]

(egt's at 11,000) I screamed out loud,

So, did it turnyour engine to plasma?

 

[Agnem]

Yea. Drop a zero there. That's the thing about IP's. They just deliver less and less fuel as they age, so slowly you never realize the power that you've lost. That's why I say throw a new one on every 100K. Sure you can keep it if it's running good, but I guess you won't miss what you don't know you have. Sort of like a lot of that junk in the attic that you've been saving and forget you have.

 

[Timthetoolman]

I never let the EGT's stay at 1100 for more than 10 seconds at a time, then let them cool at 1000.

EGT's is something I have never figured out on these trucks, on the Rotax ultralight 2 stroke engines we fly on our airplanes we set the needle valves so the egt is at 11,500 degrees at WOT (manufacture rec). have flown these engines for hundreds and hundreds of hours, torn them down every 150 hours to de-carb them and I have never even seen a blimish on a piston.

Most guys I know run over 1200 degrees (Rotax engines) all the time, never seen a problem.

Why is it that our big bad diesel engines are suppost to melt down at 1100, who set this benchmark? Does the piston really see this temperture or is it the gases burning after it leaves the chamber that makes up a lot of degrees, most EGT's gauges are off by at least 150 degrees, anyway just wondering???

I have a big white mark at the 1100 degree and never let it go above for a few seconds at a time, if I hold it to the floor she will go over 1200 pretty easy (while towing). I'm working on a home made intercooler and ram air system, maybe when it gets cold outside here in the south I can open her up a little more.