Jess:

On the defueling issue, the 2003 to 2005 Dodge CTD CR trucks seem to do the
same thing that the Second Generation 24 valve trucks like mine do. Specifically,
under WOT acceleration with higher boost numbers (and this seems to vary by
truck) the engine PCM/ECM defuels the engine during the 1-2 shift and you will
feel the truck "nose over",.......slow down some and then take off again when
the boost drops back down. The BD R.A.D. Device stops this action. However,
when Tom ran on the dyno last night his truck was defueling on the high end
(at about 3000 RPM). It is my understanding that this is a function of the
torque management system and I don't think the BD R.A.D Device will prevent
this at high speeds. However, I believe that Tom's TST PM 3 CR can be
"reprogrammed" as my older TST PM 3 was to increase the RPM at where
the "defueling" occurs.

Hope this helps some...................

----------
John_P

 

thanks thats the way i understood the rad to work and understand about the upper rpm fueling,doesnt the tst fuel to like 3300 rpms?

 

I can't feel this defueling thing in my truck at all, but I run the tst so the ecm never sees actual boost. Or is it happening and I just can't feel it, what's your thoughts on this.

 

There are a three issues with the defuel.

1) The one in and around 2200 rpm

2) The one that gives no fuel without a MAP signal ( this makes it hard to build boost on the starting line when racing)

3) The defuel for governed top speed

We licked the first two. I think BD power has the module for a top speed defuel as well, but I thought it only worked on the 03 and 04 trucks, but not the 04.5.
The BD power module might have the defuel number 2 fixed as well, but I dont know for certain.

Don~

 

Don...can you explain how the first two have been "licked"?

 

Thanks John,
I will give TST a call to see what my box is set at on then RPM side to defuel.

Thom

 

Copy that, Cause my 2100 rpm "defueling" is still alive and well

And I would be all if I could get rid of it !!

 

I think I have all three...

 

how can i tell if it has one around 2200 rpm ,does it happen all all or just some trucks?and does it only occur in the first 2 gears.about buildng boost at the line does this mean like no boost at all or say not more than 20 psi

 

Well I dont want to let the cat out of the bag. We have it licked though.

King, the trucks seems to do it all gears. I have not tested any 05's yet though.


Don~

 

As long as it stacks with the TST - I will give you my credit card number ASAP!!!

 

LOL!

 

Don,

All I was asking was if your "fueling box" has the ability to fix these defuelings or another product from you is needed?

I am assuming yes it is in the fueling box's ability.

 

You can't expect me to give up the "big Pubba" of boxes, right??
(I hate the defueling, but I can't figure out if the TST causes it, OR just makes it more pronounced)

hm,hm,hm (waiting patiently for a PM/email/call from DON to take my money)