CDRAM

Racer57 are running the HTB2 turbo or was that someone else, what kind of drive pressures are you seeing with that? I know with the turbo Piers loaned me, it flows quite a bit more than a 40, and builds more boost than my 40, so if you have excess volume with a higher drive pressure that equals oil mess. I will measure drive pressure whenI get my orings and studs.

Racer57

CDRam, that was someone else. I am running a 35/40Hybrid (DodgeZilla). However, it is my understanding that the DZ flows 630cfm corrected and most 40's will flow only 10% more than that.

With all due respect however, I fail to see how the CaTCHER would have contributed to the demise of your head gasket. Would you mind sharing with me how you came to that conclusion?

CDRAM

It was more of a joke for Marco, but if you want to get a little technical, Marco's programming has to do with timing and fuel delivery, these affect alot of different aspects which we all know on twelve valve motors, timing can kill a head gasket fast, or should I say results of timing say up to 16.5 or higher. Applying these theories could we say that timing could have played a role in this? Most of my headgasket woes come from overfueling a single turbo system w/ no waste-gate of any kind and a lead foot. I'm my own worst enemy, anybody got a spare set of twin turbo's laying around, and possibly extrude honed head oringed ofcourse, and maybe a stud kit.

BigBlue

Sure. I keep that stuff in the closest just in case someone needs to borrow them.

CDRAM

Great I'll be over to pick them up, but I'll remember to duck.

Marco

Hi there,

Before you get too excited about the timing in the CaTCHER ...

After years of testing I've found that the guys @ Cummins aint stupid. In fact the timing in stock form isn't soooo bad. What I did mostly was to get back the timing where it should be if it wasn't for emissions. In order to keep the NOx under controll they have to retard the timing. Average that's about 1.5 to 2.5 degrees. That's average what I've raised the timing.

EPA, yuhuuu... bye bye...

So, no way that the timing in the CaTCHER could kill a head gasket. Too much boost with too much backpressure and a little more timing... That kills 'em

Marco

CDRAM

Marco you are right on the money!!!! O-ring time.

KatDiesel

Well lets see, where to start................

First off, I have to say even though this was a "bumpy" road to getting a working ECM, Marco & Doug were both trying to do their best to get it corrected. Marco handled my ECM three times. It turns out it was partly my fault as I had a bad ECM but was unaware of it. It was advertised as a 2000 model year so I never tried it in my truck. It bench tested for Marco fine....but when it went into my truck no go, flashing "Wait to Start" light. So after sending my ECM directly to Marco, he checked it out and found out the ECM was bad. But he didn't stop there, he pondered on it and poked around until he found a bad 5 volt regulater and some burned traces, and repaired them! And he learned something in the process regarding bench testing the ECM's. After testing my ECM in his truck overnight he then felt comfortable enough to send it back to me with the correct software for my truck. I shipped it Express to him, and he Expressed it back to me, attached was more then enough to cover my part of the shipping to him. What more can I say other then thank you? I'm literally at a loss for words............he could have just left it at a "bad ECM", but he didn't. My hat is off to you Marco.........

Now onto the short test drive.............wow. The truck just "glides" upto speed now, I mean I am at the speed limit and over much faster then before. Smoke so far is manageable but traffic was kinda crowded, it got to 70mph real quick, found myself using alot more brakes. Even idle sounded good, and a few quick revs and it sounded mean. Driving it seemed to sound the same only moved faster. I didn't get to check Cruise, I didn't get to watch EGT's closely........but it makes a difference. Truck just wants to move now. Bear in mind I have Mach 4's, 4.10, Kwikspool B1, 93% DTT TC, 285/75/16 tires.

I can't wait to goto work now

Racer57

Hate to tell ya, but told you so.................Congrats

powerwagon440

how nasty can u make these things? can u make them for just a specific set up? or?

CB_Parker

Finally, DYNO CHARTS!!!