I don't know much about electronics, can someone explain stacking? How it works and what components work together? Thanks, interested minds would like to know.

 

It is using two or more devices to control different aspects of the injection of fuel to make more power. There are basically 3 ways to make power when it comes to the fuel injection event. 1:timing or when the injection happens; 2: duration or how long the injector is open; 3ressure or how much pressure is applied to the injection. Changing any one of the 3 can give more power. Stacking comes in when you want to control all three aspects. For example the edge juice changes duration and timing and the edge ez changes pressure. "Stack" the two together and you change all three. This is only one example there are just about as many ways to stack as there are programmers and chips on the market. The only thing to keep in mind is you typically do not want to stack two devices that do the same thing because too much timing or pressure or even duration can cause damage. This is a simplified explanation and there is a lot of better info out there. I hope this helps a little.

 

can someone tell me then what aspects the Smarty Jr adjusts eg.timing etc. and what would compliment it such as Dr.P or TST? which is the easiest to use and what are the cons of running a pressure box.
Thanks Dave.P

 

Smarty is timing and duration. Dr.P is pressure, while the TST can do pressure and timing also (it is adjustable for no additional timing for use as a stack). MP-8 is a pressure only box that works great with a Smarty. And Quadzilla has the X2 which you would need pressure only files downloaded to it.

 

Smarty Jr. adjusts timing and duration. Dr. P, Mp-8, power puck, Edge EZ, Banks six-gun all are pressure boxes. Quadzilla X2 can be had with a "stacking only" pressure feature too and all the above would complement the smarty jr. You have to be somewhat careful though as the Dr. P, Banks and puck all add a little timing too.

Running pressure all the time will shorten injector life. Running too much pressure at one time can blow the pressure relief valve or even crack an injector body.

TST is primarily a duration box that can run timing too (and it is adjustable from 0 on up) and if you get the "AP" version it will adjust pressure as well. However, it, the pressure adjust, doesn't seem to work very well with modded cp3's.

 

Thanks for clearing that up for me. I gather the mp8 would be the simplest to use as it only adds pressure, my question now is how much pressure will it put out, and is it controllable by a switch like the Dr.P.
Thanks again Dave.P

 

The MP-8 is capable of putting ALOT of pressure in, like 27,500psi+ but when used wisely can help spoolup times and mileage considerably. The MP-8 uses a **** for control 0-100%.

 

Thanks rip 112, is there a particular model of the mp-8 that i should get? with my Jr. the only other mods i am considering is 40-50 hp injectors down the road and a slight turbo upgrade.
Thanks again.

 

I'd like to hear a few more opinions on this?
I'd like to add an MP8 as well but know once I get the extra power it'll always be cranked up all the time (same as how I run CL all the time except when towing). Doing so will harm my stock injectors then?

Jet, if you're adding a turbo and injectors, why not get rid of the "junior" and get the full blown Smarty (or BDTD)?

 

No particular model, juts a TS Performance MP-8 for your year model 03-04. You will definitely need a turbo upgrade, I'd suggest a Super B, any 62/65/12 sized turbo, but my choice would be a HTT 62/65-13ss. And you will be needing a good fuel system like a FASS, Airdog, BD, or GDP, or at least a good fuel pump like a Raptor. And I agree you might want more programming thatn the Jr, a SR would do fine.

I agree about the Smarty, but I know the Bullydog isn't as phenomenal on 03-04 trucks. Jet if you had a 04.5 or newer 5.9 the bullydog would be fine, but the 03-04s like the Smarty and the Diablosport Predator better.

For you Fisher, I'd be hesitant to run that kind of pressure all day, CL with 100% of MP-8 is gonna kill injectors on the 04.5-07 if you keep it set like that all the time. But the MP-8 is adjustable so I would keep it around 50-60% while driving if you have to, then crank it up to pass or lay. I haven't had no problems running pressure all the time, but I also have an 04. JMHO

 

Okay, thanks RIP.
So would 50-60% shorten my injector life?

 

I'm not gonna say no because I don't really know the nature of the CL program, but on an 06 I would definitely keep an eye on it with a gauge, I would think it would work as a great compliment. I keep mine on 60% about 75% of the time, the other time I am either towing (0%) or passing/ fooling around (100%). It has been enough to get the OFE slipping in 6th if I don't roll into it, this is with the Beta 4.3 and the MP-8 on 60%. Truck will flat out move though. I would get one and try it out, just be cautious going over 50-60% and you should be fine. I have been saving money for stix anyways, so its something I will try and be prepared for should the day arise.

 

You might want to listen to what Don M. says about this. He sees injectors all day long and can tell you first hand what happens.

Paraphrasing him to a degree (don't want to quote him), even with stock pressures, he sees a lot of 04.5 and up injectors wearing out faster than the 03-04 stix due to the increased pressure of those years. You put even more pressure on them from a pressure box and they wear out just that much faster. Cruising around at 65 and 70 mph all day with 20k pressure is not OK... stix wear out very fast then.

Don posted some pictures somewhere showing the damage to the seat in the injector that causes leakage. This damage was purportedly from bad fuel, water in the fuel and particles the fuel filter did not trap.

Use pressure with caution...

Just for comparison, a lot a folks run around with boxes and cruising pressures between 17-20K. I run at 70 mph, 1900 rpm, 8.5-9k. Just using common sense, whose injector do you think will wear out faster?

 

rip, why run the MP8 on 0% added pressure during towing? Is there a problem with prolonged pressure addition while towing? Can it cause damage to the injectors?

I'm greatly debating buying the Smarty S06 PoD and TST MP8 stack. As mentioned above, I'll be able to control all three functions of the injectors. Which is good enough for now until a full stand alone unit is released to the masses that is reasonably priced...

 

Yes the prolonged pressure can hurt injectors quicker, especially when towing since alot more throttle is needed at given times, more throttle means higher rp pressures to keep that rpm, when I tow I cut mine down to zero to maintain stock or a a little higher than stock rail pressures. The MP-8 is for play or daily driving empty, its rampup of pressure is pretty high in the upper rpms, so in my case towing with it on is too aggressive for the injectors. But it is a great stack together.