running two fueling boxes??

[Big Don]

Guys,



Just wanering. I have a power Edge EZ box on my truck. I still have a VA box I took off of my 99. I am thinkin' about tryin' to run the VA box for fueling and unplug the EZ box from the data link and only use it for the map sensor hook up. I am afraid to hook both boxes up. What do you think???? Do you see any problems??? will it hurt the truck??? I am not very knowledgeable on the electronics of these engines.



thanks

Don

 

[LSMITH]

Don, you can do that with no problems. Just do not hook up the VA and the Data Link from the EZ at the same time or you will set a check engine light if you start it.

 

[PRout]

Is there a reason you prefer the VA to the EZ? Or, is this just an experiment?



You could just sell the VA, or keep the VA, & sell the EZ, & get a PS boost module. Lots of options here. Or... well, youve already got a plan im sure.



Ive never compared the EZ to my VA. I know the VA gives a real nice throttle response w/ bigger injectors. In your opinion, does the EZ give the same improvement?

 

[Big Don]

I left the EZ map sensor hooked up and unplugged the data link and then plugged in my VA. I wanted to see an apples to apples comparison of the fueling curves of each box. The VA box does not give near the kick in the pants as the EZ does. I was really suprised. I thought the boxes would be similar. The VA box does run, but it takes a while for the power to come on. The pe EZ seems to add the fuel quicker. The EZ hits 30 psi "right now". The VA will make 30 psi, but it takes a while. Needless to say, I removed the VA and hooked the EZ box up again.





thanks

Don

 

[LSMITH]

Thanks for the comparison Don. I found the exact opposite in the testing of both that I have done on the same truck. I thought the VA came in a lot earlier and harder. I guess our butts are set to two different calibrations. I guess that is why we have opinions that are our own huh? Thanks again Don, it is always nice to have input from direct comparisons.

 

[Big Don]

Mine was posted as seat of the pants, but I also stated the VA took longer to get to 30 psi of boost, the PE EZ was almost instantaneous compared to the VA.

LSMITH, I notice you do have many rpelies, but you state you run none of these products on your truck. How do you gain the knowledge. I understand most of what you are telling me as I sell/install products on trucks regularly. I am learning more about the 24 valve trucks as I go. We setup alot of first gen and later 12V trucks, but the 24 valves are mostly injectors and boxes. I am just tryin to get my 24valve to run like som eof the 12v trucks we've setup. I understand the defueling at preset EGT's. I have a banks powerpack on a 99 dodge that does just that. It is nice cause I don't have to worry about a driver "Burnin' it down" for us. This truck is a personal vehicle not business so I'd like it to make @400rwhp so it will go. I have DD II's and getting a 14cm housing. I am curious what kinda power I can get from it if I add a PE comp or TST powermax. I personally do not like Blue chip (just personal opinion).



thanks

Don

 

[LSMITH]

Big Don, PM sent.

 

[barryg41]

PE EZ & VA

Ok... . I want to know which is better, faster in building boost? You can see what I have, can the VA build boost faster? I dont want to be accuesed of telling a TDR member the wrong information.



LSMITH, I am not questioning your wisdom. Very few folks contest your answers... . opinions. I just want facts (or even opinions) from folks who has ran both boxes or even better yet multiple boxes at different times.

 

[LSMITH]

Barry, please question if you have a question.



Thinking about this I think that Don and I are not comparing apples to apples. My testing was done on an auto trans truck with DD1's, a DD boost module and a stock TC. Don did the test with a manual trans and DD2's using the EZ as his boost module. The difference in boost module is a non-issue, it is the trans that I think is the biggest difference.

I thought the VA came on harder and earlier, but the stock TC lets the RPM come up very quickly. Both the EZ and the VA made the same boost numbers peak and at normal cruise speeds. Both boxes had the same seat of the pants power when at WOT. I drove the truck in question several thousand miles with one box, then the other, and sometimes just as Don did with the VA in place and the data link of the EZ disconnected. The place I noticed the biggest difference is around 1500 RPM. To me the VA would be right there waiting for me to ask and the EZ was a bit lazy untill about 18-1900RPM. I also noticed that the throttle position that did not slip the TCC was much more sensitive with the VA than the EZ.

I think that Don in his testing is able to hold the RPM at a lower level for much longer than I was, and therefor got some different results.

The last issue of interest for me was that I recorded the fuel economy during both periods and the VA was ahead by almost 1 MPG. For me the VA with a boost module and DD1's is a better box than the EZ with DD1's. I did not test the two boxes with any other injectors, swapping injectors is easy but the washers get expensive and I could only go smaller. What fun would that be?



Don, can we talk you into doing some more testing? Time to boost, peak boost, EGT at WOT, EGT and boost at cruise, and maybe 50-80 time at WOT? You have a better test vehicle than I had when I did my testing since you can hold a gear and use the entire powerband. IMO a dyno would be the best place to test both for power at various RPM, but that gets expensive.



Anyone else have experience with both?

 

[PRout]

Maybe you guys have different software versions, etc. I believe there were changes made in these boxes as surging issues were ironed out.



Just a thought.



Anyways, I may be wrong here, but Ive heard the VA normally comes on a little earlier, because they smoke more w/ the same big injectors as compared to the EZ, which has better smoke control, as it senses boost. Again, i cant seak for the EZ, as ive never tried one, but thats what ive been able to piece together from reading posts.



For example, Ive heard that DD3's & the EZ work great, but combining DD3's w/ the VA gives alot of smoke, and youre better off going w/ DD2's & VA. Been paying alot of attention to this issue. Would like to hear more experienced input on this.

 

[Bigsaint]

Big Don, I have the TST Comp. box piggybacked to the Edge EZ on my truck, works great. I Normally run with just the EZ and the injectors, but it's a real kick in the pants with the TST on. From what I understand, you cannot piggyback the VA with the EZ. Either the TST or the Edge comp. will toast what is remaining of your clutch, guessing that you know that already. It would be a much neater install with just the Edge comp box, rather than running two boxes as I do with the TST. You could sell or trade in your EZ for the Edge comp. ( give the guys at Edge a call). The Edge comp. wasn't available when I got the TST, but I have no regrets with the TST, it performs as described. If you go with the TST, make sure you get the remote option as their are still some older TST boxes (Comp. and levels 1-3) that are not adjustable on the fly. With the remote you have a choice of 9 levels of fun, I usually go no higher than level 6 on the TST and can tell ya, it's a great box if you just want to keep the EZ rather than sell it for the newer Edge Comp. You won't need the EZ if you go with the Edge comp. as it has the ez box features built right in, depending on which setting you have it on.



Hope this helps !!!



Scott W.

 

[barryg41]

Sorry LSMITH, You answered my question and I missed it or gawd knows what or how, I didnt get back to thank you.



The one thing that I was glad to hear you say is that the EZ came on after or around 1800 rpms. I might be wrong but that is a good place to be towing at 70 in OD. I just hope it doesnt tear up my trans before I am ready to replace it with the right stuff.



thanks again for the info!

 

[Big Don]

Guys,



I now have an EDGE COMP box and a 14 cm wastegated housing ready for installation. I plan on doing it saturday after I finish and EZ and gage installation on a 01 cab and chassis.



thanks

for the info

Don