piggyback powermax and ez!

[smittybuilt]

i was thinking of doing away with my drag comp. reason being people say that it is probably to much timing on my high output motor. i recently did have a blown headgasket at 20,000 miles. i was just wanting some feedback on piggybacking the powermax and ez. some one told me that as of just lately the powermax and ez were not stacking well together. they said the powermax made more horsepower by itself than it stacked with the ez. any info would help my decision.

 

[TORQUE THIS]

https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=65735



Posted this the other day, only 1 response???

 

[KEarnest]

not sure about the power difference with stacking boxes, but it appears that HO owners like to stack the Powermax with a TTPM rather than an EZ due to its less aggressive nature



check out https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=65560

 

[Briar Hopper]

I don't have an HO, just a 5 speed, but I can tell you that stacking a Powermax 3 with a Van Aaken or an EZ Edge will give phenomenal results. Lowered EGT's, better low end, etc.

I run a Van Aaken with my PM3, a matter of personal preference. The service from Edge Products however, cannot be beat.

The EZ seems to pull harder down low on a dynojet than the VA, but I have not pinpointed any appreciable differences.

 

[LSMITH]

If you go with an EZ you are still going to have the more aggresive timing, try a TTPM or a VA instead if you want a little less timing.

 

[Bigsaint]

I never dynoed with the combo, so I have no numbers for you, but I cant tell you that the EZ box, piggybacked to the TST PM3 works and works well.



Scott W.

 

[1tuffram]

Originally posted by Briar Hopper

I don't have an HO, just a 5 speed, but I can tell you that stacking a Powermax 3 with a Van Aaken or an EZ Edge will give phenomenal results. Lowered EGT's, better low end, etc.

I run a Van Aaken with my PM3, a matter of personal preference. The service from Edge Products however, cannot be beat.

The EZ seems to pull harder down low on a dynojet than the VA, but I have not pinpointed any appreciable differences.

Can you say what the deciding factors were for you to choose the VA over the EZ?



Intresting you found the EZ to pull harder down low over the VA. I have always heard the VA tends to make a little more low end grunt than the EZ Were these findings with or without being piggybacked into the PM 3?

 

[RSnaith]

In the past month, we've attempted 3 piggy backs (which has worked very well for most people). Our first piggy back was a TST PM3 Comp with an EZ (and then a Bully Dog Torque Dog+) and 01 HO with a B1 turbo, o-ringed head, and massaged DD3's. We noticed a marked decrease in low-end power and a loss of 2 PSI (the Bully Dog, with its more aggressive timing, lost 3 PSI) of boost.



About 1 week later, one of our customers attempted to stack an EZ with a TST PM3 on a 99 ETC auto with DD3 injectors. Again, there was a marked decrease in bottom end power. His upper end boost wasn't affected, but he currently doesn't have enough turbocharger (wastgated at 38 PSI) to tell.



Talks with Mark Chapple at TST lead us to believe that there is just too much timing advance (either TST or Edge bumped up their timing recently, as the stack used to work very well) for the amount of fuel being delivered by the TST box. We haven't tried one of the less aggressive timing boxes (such as the VA or DD) to see if they still work.



I realize that this is only two trucks, but I'd be very interested in seeing some dyno results from someone with a new TST box, and a new Edge EZ, DD, and VA box to see if the stack really isn't working anymore.

 

[Briar Hopper]

It was actually David TD of DieselPerformance Motorsports that made the observation that the EZ pulled harder down low, while my truck was on his mobile dynojet.

Those results are not comparable to the general public, as I have a TST PM3 Comp with a custom program and that was the one in use that day, not a regular TST PM3.

LSmith and I both feel that the VA pulls harder in the low end, making it a better choice for drag racing when money is on the line. 1Tuffram asked what the deciding factor was. I sold out of EZ Edges, and the VA still would not sell. So it's on my truck for an extended test. I have noticed it smokes more, and the PDR Hx40 kicks up boost a bit faster with the VA. Price wise, the EZ is a better deal. It's also a better deal due to Edge's customer service and quality, and the fact they are "one of us", genuine diesel enthusiasts, and friends.

Finding the right combination would involve having all the boxes in one place at one time, along with the truck and a dyno. Preferably TWO trucks. I'm a little busy building trannies and installing clutches but when I get a day free, I can scoot over to the big town and do some testing.

 

[RSnaith]

Originally posted by Briar Hopper

I'm a little busy building trannies and installing clutches but when I get a day free, I can scoot over to the big town and do some testing.

That would indeed be invaluable, Tom. If possible, you should grab a new PM3 and remote out of the box and give it a whirl. Like, you, we found that stacking used to work very well, its just on the last couple stacks that it didn't do a doggone thing for us.



Rod

 

[LSMITH]

My butt-o-meter says the VA is a LOT stronger between idle and 1700 RPM, from there on up it is a wash as they both seem equal. I have only used the old style VA (2 of them) and the standard EZ everyone buys (2 of them as well). Smoke is definately worse with the VA than it is with the EZ even on it's most aggresive setting, bu turbo lag is way down as a result. Even with DD3's and a VA it can be driven for very little or no smoke, driven hard it will lay CLOUDS!! I don't like the EZ, but the guys at Edge are really good to work with if you need help.

 

[smittybuilt]

thanks to everyone that took time to post to my topic. i now know that maybe piggybacking still works so i'll probably try it after i get rid of my drag comp. thanks again.