Engine/Transmission (1998.5 - 2002) MAD ECM and Comp Box???

[RJPotts]

Anyone have a MAD ECM flashed to get along with a Comp? Just wondering what its manners are without the Comp and how much difference there is with the comp.

Thanks in advance,

-R. J.

 

[ThrottleJockey]

It's called the 'Special'.



It consist of a MAD ECM that Marco backs the timing off of, allowing the Edge product, an EZ or a Comp to handle the timing advance.



Marco thought that when the cylinder pressures rises with boost and air charge temps are at their peak, a truck with a comp and big injectors has too much advanced fuel ignition, compounded by the timing advance from the comp created a condition very similar to too much timing.



As usual, he was right.



He also stated that at high boost (high cylinder pressure) timing retard would be best. He noticed this from information he obtained from owners of trucks sporting twin chargers, and subsequently these guys also had big injectors.



He was right again. And the Special was born.



It drives great, it doesn't hit as hard down low but the fuel is there. It will light off a set of twins better than any 24 valve product on the market and if you ain't gonna tow, turn on that Edge Comp or even an EZ and enjoy the MAD Special ECM with original MAD style timing. Too much fun.



Brian

 

[fox]

I took a comp box off ( will sell it ) And put the MAD on it.

It is hard to believe this truck still has 24 valves!!

The driveablity is Fantastic!!

Note: I drive mostly under 2200 rpm.

Note: This mod WILL overpower any auto trans NOT set-up for it, with correct line pressure.

 

[R-N-R]

The combo seems to be working for me. It did take some effort to find the best comp settings for different situations, and re-learning the go pedal.

 

[RacinDuallie]

So I take it the MAD and Comp now work together hand in hand? What happens if the Comp is off? Does the Mad still perform the same as special or does it go into reg. MAD mode?

I might just have to jump on the wagon with this Special MAD ECM... ... ... ... ...

Bob? Can you PM me some pricing info? Do you need my ECM first or what's the deal? My truck is out of commision right now and the ECM is off of the engine... .....

 

[ThrottleJockey]

Jeff Strothkamp, a puller in the Super Street class at IRP this past Sunday, laid down a 369 foot pull with a 37000 pound sled... .



... in A 24 VALVE!



A P-Pump conversion? Nope!



Try a CaTCHER ECM 'Special'. That truck took off like a friggin' Pro Mod pushin 800cc of fuel! I was all like :--) I thought it was a P-7100 conversion.



Way to go Jeff!



And Marco, once again, nice job.



Brian

 

[RacinDuallie]

BOB !? HELLO BOB??? Still waiting... ... ...

 

[JR2]

Did you try PMing Bob?? He does not read every thread on the TDR... .



I can tell you its around $500 if you send him your ECM and its that plus the cost of an ecm if you don't.

 

[R-N-R]

Calling works as well: 1-888-225-7637

 

[RacinDuallie]

I recieved a PM from Bob. He is saying that the Blue Chip Redline Box works the best with the special version.....

I thought the Edge Pro Comp Drag Box was the better box-which is why I have it already.

Buddy of mine has the Blue Chip box and I wasn't too impressed... ... .....

What makes the Blue Chip better? From what I've seen it only allows 63% more fueling... ...

Maybe I need to change my fueling box as well? Can the Edge and Blue Chip be stacked? And here's another question- Can the Edge/Blue Chip stack work with a Special MAD ECM- if they can be stacked like that?

 

[R-N-R]

I think the best combination is a fueling only box with the standard catcher programing. TST or Blue Chip will probably be better than a comp box which seems to loose a bit off the top end when mated up with a catcher. The bottom end drivability gain is worth the top end loss for me, for now



The only stacking I am aware of was using the Edge EZ for timing and a fueling box like the BC or TST. I don't think you can stack two fueling boxes with or without a catcher, special or not. The special MAD ECM basically leaves the timing near stock to accommodate the Comp box. Turning off the comp box results in near stock timing levels, I am not aware of any on-the-fly adjusting within the ECM in coordination with the Comp box. I do believe that there is a whole lot more to the catcher than just timing though.



This is my understanding of things, hopefully Bob or somebody will jump in and straighten this out if I am off the mark.

 

[darkhorse]

I recieved a PM from Bob. He is saying that the Blue Chip Redline Box works the best with the special version.....



I thought the Edge Pro Comp Drag Box was the better box-which is why I have it already.



Buddy of mine has the Blue Chip box and I wasn't too impressed... ... .....



What makes the Blue Chip better? From what I've seen it only allows 63% more fueling... ...



Maybe I need to change my fueling box as well? Can the Edge and Blue Chip be stacked? And here's another question- Can the Edge/Blue Chip stack work with a Special MAD ECM- if they can be stacked like that?

The Blue Chip doesn't affect timing. It's a fueling only bow but it fuels to, I think, 4k. I don't believe it's a good idea to stack two fueling boxes, they will both be trying to do the same thing with the bypass solenoids.

 

[Bob Wagner]

R-N-R is correct. The best of both worlds is a standard version catcher stacked with either blue chip or tst fueling only box.



The ship sails again this Friday :-laf

 

[RacinDuallie]

How does the Special MAD ECM and the Edge Drag box fuel after 2700? Does it continue or drop off?

Will an EZ stacked with the Redline and a Special MAD ECM perform better on the bottom end as well as the top end than a solo Edge Comp Drag- version?

 

[KSmid]

I dynoed 3 mad ecms

With comp box and without. Stock makes more hp until after 2800+ rpms the mad makes 10-12 hp more top end. Worth $500 for 10 hp at the rpm? Theres some more info on this. Look at "lost power going to Mach 5s" I posted a couple of weeks ago.

 

[Chrisw]

R-N-R is correct. The best of both worlds is a standard version catcher stacked with either blue chip or tst fueling only box.



The ship sails again this Friday :-laf

Don't forget about the JVD box. I love mine



I even rehooked the bule tracer wire to cut the fueling back on the box What was I thinking

 

[Bob Wagner]

Don't forget about the JVD box. I love mine



I even rehooked the bule tracer wire to cut the fueling back on the box What was I thinking

Chris you are right, I forgot about the jvd box. sorry bvout that

 

[ThrottleJockey]

KSmid,



The Mad ECM is not famous for it's additional horsepower, it is a program designed to increase the responsiveness of the 24 valve VP-44 equipped trucks. EPA guidelines have decreased the emissions standards for ALL diesel engines, and the electronic fuel pump on Dodge 98. 5 to 02 along with it's ECM program was designed to address this issue.



Our friend Marco thought (correctly) that this was all crap and has reprogrammed our ECMs for more sport like performance, NOT an increase in HP. The MAD ECM reflash is MUCH more than just timing.



It is THE 24 valve owner's BOMB.



RacinDuallie,



The MAD Special has no timing, or very little, this is proprietary information and Marco will take it to his grave with a grin on his face.

Since it has no timing, it will NOT 'feel' like an Edge product down in the lower rpm band. Edge products are famous for their TIMING and the fuel they add down low. Edge products offer a very satisfying 'seat of the pants' feeling when first driven.



They are a joke compared to the CaTCHER. I don't know why, only Marco does.



Advanced timing in a diesel is 'felt' more in the low gears, so think Edge products, the EZ, the Comp and the Drag, etc...

A pure fueling box only adds the famous double tap to the VP-44 fuel pulse.

NO timing. Now the ONLY box I'm sure has NO timing is the Blue Chip line.

I'm not sure about the Bank's Ottomind or the TST line, which are virtually the same thing.

The Edge Comp is famous because it has BOTH timing and full rpm spectrum fuel. IF one were to say CaTCHER AND Edge in the SAME sentence, make sure you finish the sentence with 'Special'



Edge Comp and the standard CaTCHER HATE each other, they bump the timing to high.



The standard CaTCHER would rather play with the Blue Chip FMS. Why? the Blue Chip has no timing! The standard CaTCHER does! They get along great!



The 'Special' CaTCHER LOVES the Edge Comp. Why? the Special has no timing! The Edge Comp, or EZ, does! One box brings the timing and one brings the fuel, see?



An Edge, Blue Chip and CaTCHER Stack? Sure, if it's a 'Special'.



The CaTCHER 'Special fuels to 3500 rpm, (I don't know about the Standard)



Is a CaTCHER Special, an Edge, and a Redline box (a Blue Chip product) better than an Edge Drag Comp?



Ask DHRA Super Street Puller Jeff Strothkamp!

 

[DWest]

DD Ultimate

I've got the DD ultimate power module in my truck with a catcher and have a few issues. When I lock the cruise in it surges or jerks then settles down but seems to surge constantly while holding speed. Also when towing it shifts into od to soon and locks up the tourqe converter to soon. Gives great low end power and throttle response with better mileage emty, less towing. The DDbox is made by Edge so figured it's similar to the comp. DW

 

[ThrottleJockey]

The DD box has advanced timing, (like an Edge) and your CaTCHER has advanced timing...



You may have a bit too much timing?



Brian