Me78569

The pulse width limitation is a communication limitation, not a vp44 limitation. The data stream is formatted as 2^12 so once you hit that limit you can't command more without wiretap. Minimum duration is no fuel. So the limit for a fueling command is 0 to 4095. Then wiretap takes it from there. The quadzilla is on the fly adjustable sin e it is a piggy back tuner. Udc pro requires that you move your tunes from the PC to the device via micro SD card. Lvl changes I think are on the fly if you have the command mod device along with the smarty touch /mm3.. still not sure if that works for a 2nd gen.

The Quadzilla ADR gives you the ablity to control duration and timing related to sensor inputs / conditions. Smarty UDC pro is a more in depth tuning platform that lets you alter the tables in the ECM directly. Due to the nature of how the VP44 system works you are limited to ~%12 duration over stock with UDC Pro. The Quadzilla is a wiretap box so you get similar tuning ablity, but you also get wiretap fueling so you get a lot more duration on command. I prefer the Quadzilla as it is MUCH easier to get started with, and it is MUCH MUCH cheaper when you consider $$ per HP. UDC pro does have it's place, but I have yet to see a UDC pro tuned run better than the quadzilla tuned trucks. I know it is possible, but the time it takes to tune to that point is reducing returns. The quadzilla lets you do things the oem system wont allow, which is nice as well.

A healthly VP44 is going to be more dynamic in use than a VE. the VE has variable timing, but it is advance as rpms increase. IE at 1200 rpm you get ~15* of timing but at 2500 rpm you get 22* of timing or whatever the ramp up rate is. with the VP44 we can go " well throttle is light and we are at 1400 rpm so timing should be say 20*, then as soon as you put your foot into it timing can drop to 12* at the same 1400 rpm to help get the turbo going and keep cylinder pressure in check, then as rpms increase you can ramp up fueling as fast or slow as you like. the VE timing allows you to meet 1 requirement, towing or racing or whatever. the vp timing allows you to have various timing curves in various situtations. same goes for duration. You can code in an antitheft mode on the fly, valet mode, emissions mode, tow mode etc etc etc. The VE pump is cool, but I don't believe reliablity is a reason to make the jump alone. the VP world has come along ways.

Those are 2 different examples. Example 1 Example 2 the graph is comparing 2.5* of timing reduct at %100 scaling to 5* reduct at %50 scaling. See how they both end up at 2.5* pulled max, but the 5* with %50 scaling hits that 2.5* of pull faster?

Here's a gearing calc we built to figure out tires vs rear end

Yea 37's on 3.55 gives you an effective gear ratio of 3.00:1 out back. You have to be doing 80 before you have enough RPMS in OD to get the 64mm turbo spinning at any real speed. Regear or drop the tires to stockish and your issue should get much better. I would still prefer to see much bigger injectors with the 64 so you aren't forced to use a ton of duration to get the fuel you need.

Completely missed that. How about 5 speed or auto? an auto paired with 3.55's and 37 would be a nightmare setup

You are underfueled for the turbo so you are having to use duration to make up for it. what are the full specs of the turbo? I would stepup to some bigger injectors, 7 x .012's or similar +-.001 get V2 on your quadzilla and go from there.

No go here, the CEL has to come on then turn off like normal. otherwise automatic failure. I could easily use something to control the light to fool them, but that's me. @LegendaryKing cost of vp44 Cost of VP is ~$950 expected life is well over 100,000 these days, provided it was rebuilt correctly and it is feed good fuel. One year warranty will catch %95 of bad rebuilds. For me, if a part can make it to 100,000 then it is not unreliable. some cars dont make it to 100,000 miles. $1000 Cost of VE Cost of VE is pretty much the same if you go new, if used we will say %50? that is not smart if you go through all the work. Lines made up? no clue honestly ppump lines are ~$400, again cut that in half $200 for used. Injector rework, $20 per injector $120 total timing cover case ~$250 again %50 for used $125 overflow $25 ( who knows really) cam gear ~$100 So for a used pump and used parts you are at $1070 For new stuff you are ~ double that. Point is for the cost of doing it with all new parts you could buy 2 vp44's. that's not to say you shouldn't do it if you want to, but in terms of $$ it doesn't make sense if your only goal is reliablity. Nothings more reliable than a spare part.

I never changed power levels, I just left it where I liked it. The big thing is the cost for the conversion. Like I said above, for the money you are going to spend to do this, you can just buy a spare vp and leave it in the truck for the day when the one under the hood dies. Betting it will be cheaper to just buy a spare vp honestly. Time = money. and it doesn't take much time to eat up a lot of money. you never really answered if you have to deal with yearly emissions, but here the CEL would be an auto fail.

What tune did you specify on the order form.

It depends on what you ordered it with. you can order the box with legacy tuning or V2 tuning. If you did not specify you prob got the old trusty 1000 series flash. how you update. or you can send it to quadzilla and they will update it.

Data log menu item in the app. connect to the truck, then go look at the data log, what does the build date show?

What does the build date sensor read when connected?

scaling sets a max amount based on the timing reduct So 5* timing reduct and %50 scaling gives you 2.5* max timing pull. So 5* timing reduct and %30 sclaing givees you 1.5* max timing pull. So 5* timing reduct and %70 sclaing givees you 3.5* max timing pull. The key is how fast timing hits that point. in this example we have 2.5* timing reduct %100 scaling vs 5* timing reduct %50 scaling. same total pull in timing, but the 5* %50 scaling hits peak timing pull at %50 tps input

https://mopar1973man.com/forum/185-standard-quadzilla-adrenaline-tunes/

Yep you will still get a max of 2.5* of pulled timing, but it will happen at %50 throttle rather than %100 throttle

I like ot set Timing reduction to 5* then timing reduction scaling to %50. That way you get a very fast pull in timing when you try to pull in a lugged state.

ios works over WIFI, I dont know how you would get that to work. I also dont know of any IOS head units. I dont know anything about your truck. Mods etc etc. Have you looked in the tune download section? I built 20 or so various tunes

please remember you need to jump through hoops to get the iquad app on the radio and you often have issues with data logging import / export.

My old tune was for high altitude, I doubt it will work. I would go with a few of the mid injector tunes. There are all posted in the downloads.

Is suppose that would fix it. The ecm doesn't go into idle routine until mph is near zero, like you noticed. Is it causing a big enough issue to want to fix?

Sold it to DAP / Quadzilla / Jacob lol it was more than I was hoping to get, but I had pretty bad things to say about my truck.

yep It is gone.

bucking is nearly always too much timing. Backing off the rpm timing settings normally solves the issue