Hi Gang,
I was swamped yesterday. That's going to be that way for about the next six months! :{
You know that feeling when you wake up in the morning and you already know that you've got to do more than what you could, yet you HAVE to eat through all the stuff... Something got lost during the day, my answers to Bob and here... Sorry!
Quote:
"Nope-- then we wouldn't have ECMs (illegal to do in US, as Cummins sued). TST used to mod ECMs, and so did others, and Cummins sued to stop it. "
Nope, TST got sued because they used Cummins proprietary tools to do their thing. Proprietary is the key word here! I'm not using any proprietary tool ( Read hardware ) or software to do my thing...
Oh, Yeah, BTW, I'm in Verona not Bologna.
I think the main question of the day is the CaTCHER + Comp. Again!
First of all, let me say that the request for the "Special" CaTCHER version is maybe 10% of all the ECM's I do. Probably not even that. Bob can confirm. Just to get things into their correct persepective...
What's really confusing is that several customers say that their special CaTCHER works fine with the Comp others instead have "problems".
I think it's not just a single "problem" that can or does cause performance problems with the CaTCHER/Comp combo. Sometimes the cause sounds like something "simple" like too much fuel, other times it seems like too much timing, yet others again look like the combination of both.
Too much fuel can be corrected easily. The Go pedal.
I've said that earlier in this thread ( I can't find it, thread is getting way too long. . ) In my mind, the ultimate reason for an power enhancer to exist, is to provide as much power as soon as possible. That translates into the fact that you can't drive the truck like with an original ECM. The original software limits the fuel to a given level in order to limit smoke and emissions.
The CaTCHER has all those limits REMOVED! Well almost... .
If you stomp on the throttle in neutral the CaTCHER will smoke like crazy...
Simply stomping onto the throttle does NOT work with the CaTCHER. That will simply translate into too much fuel and Depending on the mods done to the truck in even more fuel. Too much fuel hurts the performance and or turbo spool up!! EVERY single time you produce thick black smoke you HURT THE PERFORMANCE of your engine. So, please don't use the throttle like it was an on off switch. That does not work!
You HAVE to "baby" the throttle in the off boost conditions. That way you can drive with NO smoke AND good performance. Listen to the sound, ops music of your engine, you can HEAR when you're giving her too much fuel!
Yes, it takes a while to get used to the CaTCHER but it is not too difficult.
I believe this is more often than not the problem with the CaTCHER/Comp combination. More fuel from the CaTCHER and then even more fuel from the Comp can easily be too much. I've heard a few times, with less throttle I get better performance... Think!
The timing question. Believe me I just don't get it! The "Special" CaTCHER has an almost stock timing. All I did to the "Special" timing is to fill out the "holes" in the timing. That means, I've raised the timing where it's lower than it should be due to emissions reasons. The average timing is like the stock one. That should not cause any problem. Yet...
Another reason that comes to mind could be the SW in the comp. Maybe them guys that are happy with the Comp and the CaTCHER have a different SW in their Comp? That, I don't know. Furthermore, what if the guys @ edge change their software's often. Do you want me to write a new CaTCHER every time? Nah, c'mon. .
To come to an end. I'm under the impression that the "problems" we're having with the Comp are most likely the combination of several factors like mods done to the truck ( sticks, turbo(s) etc ) driving style and even maybe the software in the comp. That would mean that every problem has a different solution.
Marco