Me78569

if the issue is there on stock level, even a little I start to think it is fueling related.

it does it on every connection, but that only matters if something has changed. The quad box under the hood will keep the tune it had prior.

Plenty of tunes in the tune download section https://mopar1973man.com/files/category/22-quadzilla-standard-tunes/ You can download the tune builder and look at any of the tunes

sounds fuel related to me.

lol I haven't touched the code in awhile now. still needs to be json driven on a per profile setup. There are 180 some different tuning variables when you look at the complete list of all vehicles.

Not possible since the app is used for a ton of different trucks. There has to be some sort of link somewhere to say this truck with this profile gets this aid which gets this memo field

thats a huge change to the way to data / app work together. Keep in mind in order to make this work across multiple platforms the Entire .json structure has to changed to hold a memo field that references a url per variable. That is a HUGE undertaking.

Low PSI Timing Reduct is what the Timing Reduct Scaling variable uses. So low psi timing reduct is 0-5* of overall timing pull possible when you go WOT.

Timing scaling sets the max timing pull possible. %100 being you get %100 of the timing reduction called for. %50 means you get %50 of that 3* HOWEVER it ramps up as if it was going to 3* So you will hit 1.5* max timing pull at %50 throttle input rather than 1.5* at %100 tps input if you were to do %100 scaling with 1.5* reduction. so in the example below. 5* at %50 scaling vs 2.5* at %100 scaling. Both can pull a max of 2.5*, but the 5* with %50 scaling pulls timing faster related to TPS input. It will pull timing 2x as fast but the peak pull is still 2.5*. the scaling is nothing more than a limiter. The perk of using a limiter is it will pull timing more aggressive, as if it was going to pull 5*.

I agree with jacob, regardless of if they do anything for spool etc they are worth it to keep heat in the exhaust. I wanted to run them, but never got around to it.

no, the quadzilla doesn't connect to the sci bus in a 2nd gen.

Or just buy the truck?

A pair of these. Best plyers made. The jaws are always parelle.

That's for cr trucks not VP trucks.

The Quadzilla doesn't do anything to the OEM tables. It alters the fueling command of the ecm based on user input for eash psi of boost. So you get hte resolution of the oem map, with a multiplier to add or pull fuel. for timing it takes calculations based on current conditions/ sensors vs what the user wants at given points then outputs on a sort of linear on the fly "map" no real maps, all calculations. So fueling resolution is the same as oem, timing resolution is greater than oem. Power difference is not really of concern, the quad has wiretap so that just throws the hp compare out the window. I am curious about being able to control smoke with big injectors in various situtations without loosing power. I want to see a big injector truck being used for daily duty / towing. I think stock injectors are 7 x .0075 or similar. to hit 500 hp on canbus fueling you will need 7 x .012's I was a big fan of the vgt. Sub 450 hp it is hard to beat the vgt.

I look forward to your results. PLEASE PLEASE PLEASE document your progress with it. Videos etc I am very curious to see the gains that could be had by using UDC vs the quadzilla. Snap throttle in lugged situtations, WOT take off etc. If it were me I would do some 7 x .012 injectors and a 62sxe

Sure lol mine just hung there

I would test the wires at the ABS computer. truck off, Use a paper clip to "jump" the connector at the pumpkin, then use a multimeter to ohm out the circuit at the abs computer. It should be VERY close to 0.00 I would expect your mph gauge to read before 15-20 mph. that and the abs codes make me thing you have a wiring issue. There is a junction above the drivers front tire that gets nasty and corroided.

yes you just wont have a speedo

After you deal with your gearing yes i think you would be much happier overall. Again don't do anything until you regear or get smaller tires. Without that change no turbo change in the world is going to help

single turbo vp44 truck that tows should be limited to a ~500 hp in my mind. Beyond that and they start to become no fun to tow with. A 500 hp vp truck is still a lot of fun to drive. That means a 62 mm inducer ish sized turbo, and some 7 x .010 or .011's I would choose the later.

Busy people are busy.

It depends on what you want your truck to do. My definition of a "great setup" may not be what your definition is. No issue with that, but goals need to be defined.

Gears first, no amount of other mods are going to solve your issues. the engine simply has to work too hard to move down the road. Once that is done you shoudl define a power goal. with the 64mm turbo you have ~550hp worth of air ( i dont know exact flow on the turbo), which means you need 7 x .011's or similar to match that. Under using a turbo is just as bad as over using. you want to be in the fat part of the turbos map. To low in the map and you get high egts and poor performance too high in the map and you get high egts and poor preformance.

that is the basic idea. that 500hp+ area is where wiretap seems to shine. that and extending rpms. idle state is not really any issue, the ecm does a pretty good job of managing idle without worry, even with big injectors. you dont have access to those tables anyways, just setting idle speed. As for what maps, download the software and play with it you can see the oem tune in demo mode. keep in mind our trucks are alittle "old". The base timing map is also missing, but I dont know that you really need to alter that. Also things like "timing max" setting doen't really make sense. It is referencing something, but there is no documentation to say what. If you are up for the learning curve then it might be a good fit for you. I know the tuners that sell vp44 tunes don't really have a great grasp on it yet so I can't recommend anyone to build them tunes. That and the cost is nutso by the time you are done for most. keep in mind that the quadzilla is well proven as to what it can do and it is significantly cheaper. I have yet to see a clean running vp44 truck with bigger than 7 x .010 injectors using udc pro. Doesn't mean it can't be done, just that you would be the first to share what you came up with. @Mopar1973Man is datalogging actually on vp trucks? the verbage they use is not clear. Here are the PID's they list for the vp trucks. I would guess, if the datalogging works, that you get these? again our trucks are old.