I'm still debating which "chip" to get for my LLY. I'm nearly sold on the Edge J/A, but the reliability issues worry me. Is the turbo bark, etc. something that seems to be widespread? If I did actually purchase an Edge and had problems, is Edge good about warranty issues and refunds?

They are the best in the business for warranty issues, not sure on refunds. Although they do offer a 30 day return if you are not happy.


I haven't had any barking problems with my edge/attitude.

I am happy with mine.

I have the Edge only (no attitude) running in level 3 and it runs good.No troubles with it.

My only complaint is the lack of fuel mileage, even when driving in a legal fashion.

Rick, I don't think that is a the Juice causing that.


I got 20.1mpg for the first time. I was driving around 65mph and had the edge set on level 4.

No problems at all with my Edge.http://www.dieselplace.com/forum/smileys/smiley4.gif

The EDGE is great!! My first diesel, best mileage w/o edge was 21mpg. With edge on level 4 mileage was 21mpg, as long as I kept my foot out of it.http://www.dieselplace.com/forum/smileys/smiley9.gif


No problems with mine, yet. Awesome power increase. I have barked my turbo stock before the edge/attitude. Get stuck in some clay type mud, and it's not hard to bark it. I really hate it, but don't believe edge had anything to do with it.


I really don't think you will be dissapointed if you buy the edge.IMHO.

Mine has been flawless since i got the re-Flash from the dealer...


I had and needed 2 updates.. I dont get "TURBO-BARK".. And really don't understand what it is becuase, I have never had a problem with ti... My only problem is my Tranny surviving in LEVEL 5...


Mileage is getting better also, I dont have DIC and the updates seem to be helping it..





BIG

TURBO-BARK what is it?

This is a non-experts explanation, but from what I understand, "turbo bark" occurs when the engine is under a lot of boost and then immediately can't utilize the boost (such as a shift under hard acceleration), so all that exhaust pressure must be released somewhere. The only real route it can take is back through the turbo, so the turbo "barks" when it receives this excess exhaust flow.


Someone please correct me if this is way off base.

No problems with my Juice/Attitude.



Thanks,

Dennis

I love my Juice/Attitude. No problems so far (only 2000mi) but very noticeable power increase.



D.

I am yet another satisfied Juice/Attitude customer. Only had one issue (not with the juice) and that was the "fuel knock" during warm up and the GM updated reflash took care of it. EXCELLENT customer servive!!! http://www.dieselplace.com/forum/smileys/smiley32.gif

Sorry for the dumb question, but how do you adjust the juice without the attitude? http://dieselplace.com/forum/smileys/smiley5.gif Also, what is the highest level you can run it at towing max loads without doing any mods? Thanks in advance.

towing 43 that info is here:
http://www.edgeproducts.com/pdf/Juice_Attitude_Duramax_LB7_L (http://www.edgeproducts.com/pdf/Juice_Attitude_Duramax_LB7_LLY_Instructions.pdf) LY_Instructions.pdf

I had a cheap air intake (MAC). I had a bark once on heavy acceleration. Then I had no smoke because of the junk. Took off the intake and kept that part stock and I have had no problemas with the EDGE.


It does what it says it will.

towing 43 that info is here:
http://www.edgeproducts.com/pdf/Juice_Attitude_Duramax_LB7_L LY_Instructions.pdf (http://www.edgeproducts.com/pdf/Juice_Attitude_Duramax_LB7_LLY_Instructions.pdf)








Thanks, Max P!

This is a non-experts explanation, but from what I understand, "turbo bark" occurs when the engine is under a lot of boost and then*immediately can't utilize the boost (such as a shift under hard*acceleration), so*all that exhaust pressure must be released somewhere.* The only real route it can take is back through the turbo, so the turbo "barks" when it receives this*excess exhaust flow.


Someone please correct me if this is*way off base.*

you are pretty much correct. that built up pressure has only one way to go once your foot is off the pedal so it goes back to the turbo.. prolonged happenings can hurt the impellar because the air rushing back actually stops the spinning thus the "bark". This is the same thing that happens on supercharged engines and also why they recommend installing a bypass valve for boost over 8psi. my car has a bypass valve for this reason, but I don't know why the Duramax doesn't have one. seems like a cheap insurance policy.

sorry to jack the thread, but I just started having this bark and thinking of putting a bypass on mine.

The EDGE is great!! My first diesel, best mileage w/o edge was 21mpg. With edge on level 4 mileage was 21mpg, as long as I kept my foot out of it.


This is why I'm selling my 8.1s and have a Duramax coming in. The combined mileage of my two trucks doesn't equal 21.


I've narrowed my programming choices down to either the Edge/Attitude, TTS or Westers. I like the ease of use of the Edge plus I won't need to add any gauges. The TTS has been getting great reviews but I would like a little more horsepower than what that is offering right now. Westers is a good choice too. They have gains from 50-190hp and some trucks have been seeing mileage in the mid-20s. They high end version is switchable.

my car has a bypass valve for this reason, but I don't
know why the Duramax doesn't have one. seems like a cheap insurance
policy.



Because the DuraMax doesn't have a throttle plate. There is nothing mechanical to reference when the throttle is closed.



On your car, you have a throttle plate that lies between the
supercharger and the manifold (well, assuming it's a centrifugal-type
blower ie Vortech, ProCharger, etc.) Under WOT, the pressure on
both
sides of the throttle plate is even - say 8psi. Slam the throttle
shut to shift... and you now instantly have a vacuum on the motor side
of the throttle plate - but you still have positive pressure on the
compressor side, since it's still trying to push the air. The air
backs up against the throttle plate, and tries to go back out the
compressor.



A bypass valve is connected to both ends of that throttle plate.
One side of the valve is between the compressor and plate - the other
side between the plate and the motor. Under WOT, since both sides
of the plate are at 8psi, both sides of the valve are at 8psi and the
valve stays closed.



Slam the throttle shut... and the combination of the boost pressure
pushing on one side of the valve, and the vacuum sucking on the other
side of the valve - cause the valve to open.



Without having that vacuum signal when you close the throttle (which
you don't on the diesel) I don't know how you'd get a traditional
bypass valve to function.


I have NO idea how to make it work on a roots-type blower. ???

Edited by: OmniGLH

My J/A works great, no problems.

i just got 2000mi on my lly j/a and love it! the power is great and love the attitude for the adjustment. Now i gotta break the piggy bank for a suncoast III. You will be completely satisified with j/a.

i've been running mine for the last 8k miles, the best mpg i ever got
was 70-75 highway and it was 17mpg with h2s 4" no cat and disconnected
egr righ now im back to stock for the trip to the dealer and the
dic is showing 5-7 mpg better than it did with the other setup...
driveability on 4 and 5 is not the smoothest, it would be nice if a box
could get rid of or at least minimize the turbo lag seeing how
this is variable vane and all



set on low boost 4 level 0 or 1 before being warmed up 165-175* if you
floor it at aprx. 38mph there is a serious lag... it downshifts starts
to spool then sputters a few times then it goes........ i almost got
rearended when this happened the first time the total lag time is
about a second to 1.5 seconds





its got a few bugs but overall it does what its supposed to do, eat up hemis and ricers

I've got over 10k on my j/a. Haven't had one problem with it. If you drive it on level 3 and drive it hard, don't expect any mileage increase. However, I always run level 3, have 285's and don't really do worse than 14mpg (that's taking into account difference from tires). I run it hard all the time... smoke from the tail pipe after every start from a dead stop! (unless it's raining, then back to stock!).
I can't imagine a better programmer, just wish I had the balls to run level V... maybe when I have 3k burning a hole in my pocket for an upgrade!

The combined mileage of my two trucks doesn't equal 21.


You won't see 21 in your Duramax unless you drive like granny, but you won't carehttp://www.dieselplace.com/forum/smileys/smiley36.gif


I've been totally pleased with my Edge / Attitude setup.


It is a bit rough in 4 and 5, but I run it in 3 most the time and it's perfect. Level 1 for towing (9,000lbs) until I get an exhaust to help keep the EGT temps lower. I had a couple little turbo barks (more like turbo coughs) right after I installed it, but nothing really since.


Great product.





Gar

Every try driving it nice to see what the mileage is? I'm coming out of 8.1 trucks where 11 MPG is considered good (usually see 9-10). But then I get greedy and want the best mileage that I can get. Looks like my '05 Sierra will be delivered to the dealership this week so it's almost time to start modding! :)

Every try driving it nice to see what the mileage is?* I'm coming out of 8.1 trucks where 11 MPG is considered good (usually see 9-10). But then I get greedy and want the best mileage that I can get. Looks like my '05 Sierra will be delivered*to the dealership this week so it's almost time to start modding! :)

I have been getting a consistant 14mpg city with A/C or Defrost every day and that includes putting the hammer down once in a while to merge in traffic. I have edge, exhaust and filter. Level 1 on edge, level 2 for towing.

I have made short highway trips and getting at least 17 in that area, but can't be sure until I make a long trip.

My J/A has been great. I was one of the original Beta testers and even though there were a few minor glitches along the way, the final release product is great.


The Ally doesn't like power changes too much and I've found that mine seems happiest on level 3 for running around. Haven't towed anything heavy with it but would anticipate using level 1 for that. My truck is also a bit heavier than most here as you can see from the sig, that's why I'm being a bit more careful with the trans.


I've not got the Suncoast funds stashed yet...http://www.dieselplace.com/forum/smileys/smiley9.gif

I'm happy with mine. Tow a 30' 5er filled with toys in level 2, no problem http://www.dieselplace.com/forum/smileys/smiley1.gif


EGT's usually low to mid 1200's , eng temp 189-195 on flat 65-70 mph


Pulling grades (87 degree outside temp.) eng temp 200-217 Egt's high 1200's- low 1300's (depending on how hard I'm pushin it )


I Love this truck Juiced http://www.dieselplace.com/forum/smileys/smiley36.gif

I have a J/A on my dually and it really gives the kick it needs. I keep mine on 2 most of the time. I use 5 a lot to get someone out from behind my tailgate. And it breaks the tires pretty good going into 3rd. No problems to report for the edge, on my truck. I use 3 for heavy loads. I would use 3 more frequent. But, the torque conv really locks up good shifting gears. tranny mods on sign..

I love my J/A. I've got just over 25,000 miles on my truck. And 20,000 of that has been with the J/A set at level 3 most of the time, low boost always at 5. Tranny is still hanging in there. Edited by: 338_

I'm still debating which "chip" to get for my
LLY. I'm nearly sold on the Edge J/A, but the reliability issues
worry me. Is the turbo bark, etc. something that seems to be
widespread? If I did actually purchase an Edge and had problems,
is Edge good about warranty issues and refunds?



Coyotekid,



I am still undecided on what tuner to get but am leaning towards the
edge also. A little leary about some problems I've heard of but
from the responseses above, seems like those are few. I started a
similar thread here: http://dieselplace.com/forum/forum_posts.asp?TID=18389&P (http://) N=1

You may want to check some of the info coming in on that one.



My hesitation on the "Juice" is I only want a minimal HP / TQ boost and
feel it would be a waist for me to buy the Juice and only ever use it
on the lowest settings. I'm not interested in removing my stock
exhaust or doing a tranny upgrade.

earthcrusher: 04 GMC 3500 C.C. LLY Edge w/ ***. banks exh. T rex billet grill alcoa rims mag-hytec tranny pan ATS Triple lok torq conv. ATS Tranny pump
02 Chevy C.C. 8.1 Whipple spr chrgr 4" rancho 33" BFG's

Can you give a power comparison betwen the two trucks? I just sold my supercharged/intercooled 8.1 Suburban and will be picking up Duramax powered Sierra (cc,lb) this week. The Suburban was fast for an SUV! I ran 13.9 with that 7000lb truck at the track.


My hesitation on the "Juice" is I only want a minimal HP / TQ boost and feel it would be a waist for me to buy the Juice and only ever use it on the lowest settings. I'm not interested in removing my stock exhaust or doing a tranny upgrade.


I'll probably be runnong on level 3 most of the time. I say that I don't have a transmission upgrade planned but I see that happening down the road. Boost is addicting, alittle is good, more is better and to much can be just right (until something breaks).

2002 8.1 Silverado HD (http://www.tbyrne.com/Silverado/02silverado.html) - Full Throttle lift, 37" tires, 4.56 gears, Comp Cam, TOG headers, Volant induction plus more!
2002 8.1 Suburban (http://www.tbyrne.com/Suburban/02suburban.html) -Intercooled Whipple supercharger, 22" wheels/tires + more - 407hp/558 ft-lb torque at the rear wheels - 13.93 @ 95.79 MPH - sold!

2005 Sierra HD (CC,LB, DA) - on order - due in soon!


Edited by: tbyrne

Hey - I finally got the Juice / Attitude Installation Instructions to
download from their website - ANSWERED ALOT OF MY QUESTIONS!!



I'm leaning towards the Juice W/O the Attitude.



Question: I've read several times on this forum that the stock
Allison can handle an increase of about 90 HP more. Is it safe to
assume that WHEN NOT TOWING you could drive in level 4 (90 HP
increase) with a stock tranny and not do harm if you don't
get too carried away in your driving habits??

I think the 8.1 is faster,not much. The 8.1 can defanantly take it of the line. But, the power feels close in the mid-range. I do not have nearly as much money involved in the Dmax. If I put about half the amount of money on the Dmax, and compared the 2 with stock trannys. I can get the Dmax to take out the 8.1. Cost to power ratio is nicer on Diesel. Plus, having the economy is nicer. It seemed like on the 8.1 that it was always at the gas station. No matter how far down the foot is on the pedal. I didn't mind paying for premium. But, I would like to make down the road a little before refilling. And 8.1 cost alot more for upgrades. For what it is worth. I can keep both of them, not a burden to do so. But, the 8.1 is going up for sale next month.


That is one fast suburban.

That's the reason that I made the switch to a Duramax (well, that and a very nice tax deduction). The truck towed great and would do nasty things to the tires if I layed into it at 15-20MPH but it was always thirsty. The non-intercooled Whipple is about $4000. and will add just over 100hp. A computer upgrade for the dmax is about $600. and give the same results or better. I can also enjoy that power alot better because I won't be standing outside feeling the truck.

Hey - I finally got the Juice / Attitude Installation Instructions to
download from their website - ANSWERED ALOT OF MY QUESTIONS!!



I'm leaning towards the Juice W/O the Attitude.



Question: I've read several times on this forum that the stock
Allison can handle an increase of about 90 HP more. Is it safe to
assume that WHEN NOT TOWING you could drive in level 4 (90 HP
increase) with a stock tranny and not do harm if you don't
get too carried away in your driving habits??






That sounds about right.