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Old 10-02-2005, 04:30 PM   #15
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I can say that after towing this weekend without my Edge box, what a difference. I towed 127 miles without it, then towed back with it. Towing a Gross combined weight of 20k it was night and day. Going down it was a max of 800 on the pryometer and about 12 lbs of boost running about 60-65, all using the pedal, most of the time all the way down on the throttle without downshifting. On the way back it was setting the cruise on 70, egt's running about 750-850 and the boost running from 3- 23.5 when needed on the hills, no downshifting. I just can't imagine pulling without it. Makes for a much more relaxed trip. And that doesn't account for the difference in getting up to speed. That was all pulling in level 2/3 out of 4 on the older Juice box with 4.6 firmware.
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Old 10-03-2005, 06:05 AM   #16
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Thanks for the information. That is the best information to date. I hope the Edge EZ three position unit performs as well for me.
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Old 10-03-2005, 09:51 AM   #17
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What about the Bully Dog?
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Old 10-05-2005, 07:23 PM   #18
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Just into my first diesel, a 2002 Duramax.

I am interested in all this discussion on the Edge and other "chips".

My question is, if they are such a good idea, and add such performance, why don't Gm, Ford etc install them at the factory?

Sir Richard
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Old 10-06-2005, 01:34 PM   #19
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Sir Richard:
Just into my first diesel, a 2002 Duramax.

I am interested in all this discussion on the Edge and other "chips".

My question is, if they are such a good idea, and add such performance, why don't Gm, Ford etc install them at the factory?

Sir Richard </div></BLOCKQUOTE>

First - The 2002 Duramax had a significant number of injector failures. Hence, GM extended the warranty. You may not want to add a chip if the injectors are under warranty.

The manufacturers set the timing, fueling, etc. in the middle for component longevity.

Higher HP can eat drivetrain components. Higher EGTs can eat engines.

Components can operate without failing with a chipped engine when the operator is cognizant of the operating parameters - EGT, torque/load, etc.

Without a chip - drive it like you stole it!

With a chip - watch the gauges - think about it before you go hammer down with a 14,000 lb. trailer behind you.
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Old 10-06-2005, 04:20 PM   #20
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> I was also advised that there pitfalls in installing in the "pre" position such as possible drill chips traveling into the turbo and that only one bank of cylinders is being monitored. </div></BLOCKQUOTE>
One of the dealers of Edge products over on http://www.thedieselstop.com said he has installed over 100 of the pre turbo probes with not a one problem. If they are installed with a little care, there should not be a problem with chips.
One of the moderators over there use to have a pre and post gauge. His conclusion was that the post was useless because you never really knew where the temperature was because of the temp drop across the turbo. He eventually removed the post gauge and declared it useless for any practical reading.
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Old 10-06-2005, 06:24 PM   #21
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I guess that there are different opinions on this subject. A large commercial shop that specializes in fleet turbo and injection work for the trucking industry in the Allentown PA area has the view I mentioned in my post. I also stopped at a VOLVO large truck tractor dealer to see if they would install a gauge for me. They would not install one pre turbo (my original request) and when questioned, told me that VOLVO trucks have their EGT gauges factory installed post turbo. I AM aware that there is a difference of between 300 to 400 degrees between positions. This is not a problem for me, as my danger number is just that much lower than someone that has a pre turbo gauge.
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Old 10-07-2005, 07:42 PM   #22
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Ok so post turbo is 300-400 degrees difference? Is it 300 or 400? Or maybe only 200.
The fact is that the post turbo gauge really is useless for determing when you are too hot. People who run both say that it can be as much as 450 degrees difference and as little 150 degrees diff. Depends entirely on the load and time in the throttle. Without both you will never be able to determine that pattern.
Put it in pre-turbo and you will always know where you stand. As for metal chips in the exhaust. Unless you break the end off a 7/16" bit and leave it in the manifold there won't be any chips large enough to damage the turbine. The hot side of a turbo is pretty robust and the clearences are rather large so small chips are not going to hurt it. Some people try to suck out the chips with shop vac for a little piece of mind.
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Old 10-07-2005, 09:08 PM   #23
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~and some installers will have the eng idling to help blow the chips out during the drilling and tapping. My installer whom I knew to be experienced didn't. Thats been 16K miles ago w/o issues. I recall only one horror story of an individual that broke the tap and it fell inside. Figuring it would pass harmlessly out of the system thru an alternate route, he fired it up. It didn't and the ensuing saga was touching. As I recall the forum members took up a collection ~ it touched us all.

I was faced w/the same decisions when looking for a performance enhancement box yet not having any racing interests. The EZ was just making the headlines ~ as an economy choice. I shopped around and was able to get a juice w/attitude controller for a very reasonable price. I like it because it helps manage/control the egt chores and the monitors/controls transmission stresses. As I already had a pyro installed, most of the work was done. I just hooked the edge to it and run the existing pillar gages in parallel. That way, when I remove it (juice) to visit the dealer, the pillar gages supports the reason for the probe. It has been to the several dealers for routine servicing in 2 states w/o comment prior to the juice install. Because of a bad experience of a lot boy using them as a hand hold to climb in. Since that experience, I tape a note to the gages stating 'Not a hand-hold. Break it again & Die!!' So its a safe assumption they are aware of the gauges and haven't said anything about them. I won't press it w/the performance box tho ~

My choice is w/the Juice with Attitude
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Old 11-01-2005, 10:53 PM   #24
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i have drove a diesel truck since 1961 of one kind or another. and my thought is this if the probe is pre turbo and the tip malfunctions it will go through the turbo and you will be lucky if all you have to replace is the turbo. granted the after turbo will read about 300 to 400 degrees colder but you can make your red line accordingly and drive to fit it. if the tip goes south at after turbo you will not hurt anything. take care mcgillagorilla
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Old 11-02-2005, 04:50 AM   #25
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Thanks. I did install the probe after turbo. I have enough trouble with the truck (turbo) now, and may be on the path to a lemon law buyback. I can't risk them telling me that I caused the problem. I can add fairly well, (2+2=5?) and just build in a comfort level to the temp. shown on the gauge. No problem!
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Old 01-08-2006, 04:43 PM   #26
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For those with the Edge, is it easy to switch between seetings, i.e. economy mode when not towing and towing mode when towing? Second, what sort of fuel milage change have you seen when towing and when not?
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Old 01-15-2006, 09:54 AM   #27
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Easy to switch between the settings?

Fairly easy on mine in my 99 Dodge. It takes a Allen wrench to remove the cover on the box. After removing the cover you just move a jumper. Hope this helps.

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Old 01-29-2006, 03:17 PM   #28
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The Edge EZ uses a small 3 position toggle switch to switch the settings and can be switched "on the fly." I mounted my EGT gauge in a gauge mounting cup and fastened the switch to the mounting bracket.
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