Does Van Aaken have anything out for the LLY?

I have a beta unit here. Haven't ridden in it, but RaceHemi has driven it and we dyno'd it. Smooth to drive, and decent power...

I have a beta unit here. Haven't ridden in it, but RaceHemi has driven it and we dyno'd it. Smooth to drive, and decent power...


So where's the #####s

It's right up there with the Edge, and solidly above the others...

http://www.dieselplace.com/forum/smileys/Big Smile.gif Thanks John.

I've been hearing good things about the Vanaaken box, smooth power, less smoke and pretty much problem free, just plug it in and go.


The guys up at Diesel Services Group in Saskatoon say they have a bunch of LLY juices coming back from guys that wanna wait for the Vanaaken box.


I was going to order a juice but I may just hold off and see what Vanaaken comes up with.

We had a guy running 14.7's at the track with it Saturday. Totally stock otherwise.

On an LLY with just the VA box????????

Sounds like VanAaken is gonna give edge a run for their money.

does the VA box monitor transmission slippage?Edited by: turbo lcc

We had a guy running 14.7's at the track with it Saturday. Totally stock otherwise.


It ran a 14.6 on the slip I saw. I don't recall what the 60' times were either, maybe RaceHemi can help us out. http://www.dieselplace.com/forum/smileys/Geek.gif

Brandon, it doesn't count if he was drafting you http://www.dieselplace.com/forum/smileys/HiHi.gif

does the VA box monitor transmission slippage?








Yes, except for the race box. In fact I haven't heard of anybody tearing one up with the std VA units yet.

thanks for letting me run the box on my truck john. my 60'foot times were 1.97. 1/4 mile times 14.67. my truck is totally stock with 2500miles on it. the va box is a nice product,and john is a good guy to deal with. thanks CLAY GOODMAN

Kennedy,


when will the VA box for the LLY be released any idea?

does the VA box monitor transmission slippage?








Yes, except for the race box. In fact I haven't heard of anybody tearing one up with the std VA units yet.





John, they have a 'race' box for the LLY too?

Not for the LLY yet. Hard to judge at this point where the LLY will go in terms of max HP.

Here are my numbers from Sunday. The VA didn't wake my truck up like it did for fastfatty but then again, my trans might be getting a little tired. The 10-15 pulls on JK's lie detector plus 17 laps around Byron's Playground Of Power couldn't have anything to do with it????http://www.dieselplace.com/forum/smileys/Confused.gif Just when my engine is just starting to get broke in!http://www.dieselplace.com/forum/smileys/HiHi.gif



TTS Tow tune 15.20@87.02

Quad 120 module 15.13@89.91

VA 15.03@89.40mph

so when are we going to see more people running the new VA box for LLY ??

I only have a pair of beta units, and those came w/o switches. The switches should be in with my next order. May be a couple of weeks before they release thes production units.

J. Kennedy, I was given a VA box to try on my boss' 05 LLY that currently has a J/A installed. We were fighting a turbo bark that happens only during a full throttle 3/4 upshift. It would happen in any level (0-5) and would never happen with the Juice unplugged. I even tried another Juice box and I also tried with the Attitude disconnected. The VA box ran stronger, and never barked the turbo. I suspect that it never barked the turbo because it seemed to defuel quite a bit more during the shift. I left the switch disconnected (full power). I was very impressed with it. The dealer said he had taken this VA box back on return for a driveability issue, but later found pins backed out of a connector. Was I using a beta unit? It came with full instructions and did have a switch in the box. My boss however didn't want it because it did not have gauges. Go figure.

Sounds fishy to me. Beta qty's are very limited. So is the box still around?

Here are my numbers from Sunday. The VA didn't wake my truck up like it did for fastfatty but then again, my trans might be getting a little tired. The 10-15 pulls on JK's lie detector plus 17 laps around Byron's Playground Of Power couldn't have anything to do with it????http://www.dieselplace.com/forum/smileys/Confused.gif Just when my engine is just starting to get broke in!http://www.dieselplace.com/forum/smileys/HiHi.gif



TTS Tow tune 15.20@87.02

Quad 120 module 15.13@89.91

VA 15.03@89.40mph






Since we know the TTS Tow tune is 50 RwHp and it ran a 15.20 it doesn't look like the others are makeing over twice as much power since they only ran .17 sec faster and only 2.89 mph higher! If the others are truely making 70 more Hp somethings sure wrong cause 70 Hp will get you at least 5 mph more if not more.

Or the trans cannot take it...

Steve - thats why were all anxiously awaiting the next tune for the LLY ?? http://www.dieselplace.com/forum/smileys/Big Smile.gif - I for one cant wait, as im sure it will be awesome as is the tow tune

Here are my numbers from Sunday. The VA didn't wake my truck up like it did for fastfatty but then again, my trans might be getting a little tired. The 10-15 pulls on JK's lie detector plus 17 laps around Byron's Playground Of Power couldn't have anything to do with it????http://www.dieselplace.com/forum/smileys/Confused.gif Just when my engine is just starting to get broke in!http://www.dieselplace.com/forum/smileys/HiHi.gif



TTS Tow tune 15.20@87.02

Quad 120 module 15.13@89.91

VA 15.03@89.40mph






Since we know the TTS Tow tune is 50 RwHp and it ran a 15.20 it doesn't look like the others are makeing over twice as much power since they only ran .17 sec faster and only 2.89 mph higher! If the others are truely making 70 more Hp somethings sure wrong cause 70 Hp will get you at least 5 mph more if not more.





For some reason, the TTS Tow Tune improves acceleration more than what the dyno sheets would indicate. My truck dropped over 2 seconds with it on vs. stock, which is WAY more than a 50HP tune should accomplish. Quicker boost? Dunno.


It would have been interesting to see what the Edge LLY would have done on his truck as well. My guess is that all 4 tuners would yield similiar ET's.

Steve - thats why were all anxiously awaiting the next tune for the LLY ?? http://www.dieselplace.com/forum/smileys/Big Smile.gif - I for one cant wait, as im sure it will be awesome as is the tow tune





As soon as there is a TTS 100hp+ tune for the LLY I am there!

Sounds fishy to me. Beta qty's are very limited. So is the box still around? I do not have the box, I just ran it once to troubleshoot the Edge-induced turbo-bark. To me it seemed to be a production unit, it was packaged as such. The guy that let me try it runs a company named Mountain Performance in Northern California.

Is the LLY really that much slower than the LB7's ? With the 120 juice/***. on a stock alli I ran consistent 13.9's and an LLY with the 120 edge can only pull 15.2? Where did all the extra power go?

Is the LLY really that much slower than the LB7's ? With the 120 juice/***. on a stock alli I ran consistent 13.9's and an LLY with the 120 edge can only pull 15.2? Where did all the extra power go?





When I ran the old truck (2001 LB7) it ran pretty close to my new truck (2004 LLY). Both trucks are the same thing which makes it nice to compare with 2 wd GMC standard cab long box. The LLY ran a 16.2 and 16.3 Stock with the Tow Tune 14.9 and 15.0. All at the same track on the same day. The track is at 2700' above sea level but the D/A is almost always 5000' above sea level. The 2001 truck ran 16.5 and 16.4 at the same track. Each run is made the same for testing at all times so they may have been faster if we tried changing the launch around. What we do is launch at 1700 RPM in drive normal mode, that's it. With the Xtreme only on #2 in the '01 and ET street tires we ran 12.78 there.

Is the LLY really that much slower than the LB7's ? With the 120 juice/***. on a stock alli I ran consistent 13.9's and an LLY with the 120 edge can only pull 15.2? Where did all the extra power go?





ET's at different tracks are different.


How much ET did you drop from stock?

Looking back I should have performed the following:

1)Run at least 2-3, 1/4 mile passes in stock configuration, without any power adders or modules.

2)Recorded all 1/4 mile runs using a data acquisition tool, specifically monitoring for trans slippage.

That being said, I believe if a Duramax/Allison owner chooses to run with more than ~50rwhp/100rwtq with any regularity, a trans upgrade is inevitable!

Nothing new here, pretty much what John kennedy, Steve Cole, Mike L. and others have been saying all along.

stock I ran a 16.5, with the 120 juice I ran a 13.9 . So it is 2.6sec. faster with just the 120hp program and the stock trans heavily defueling.

stock I ran a 16.5, with the 120 juice I ran a 13.9 . So it is 2.6sec. faster with just the 120hp program and the stock trans heavily defueling.


Stock I ran 17.7 and after ~120hp of boxes (TTS Tow + Edge Lvl3) 14.8 or 2.9 seconds in an LLY. Allowing for .4 seconds due to different DA's between tracks, it seems the LLY achieved about the same gain you saw.


Doing just the TTS Tow, 17.7 vs. 15.4 = 2.3 seconds minus .4 DA correction = 1.9 seconds off a "50HP" tune.


Why did my truck run such a crappy baseline? About .4 sec was because of the track altitude, but there's quite a bit more there. My guess is the LLY programming in first gear does not allow the turbo to spool much off the line even when powerbraking. The additional power a box adds is enough to bring the turbo up to launch hard. The baseline was done at 7500lb, LACR, powerbraked to 2000rpm, 4WD High.


Since there are so few "mod'd" LLY's running yet, my info is purely antidotal(?) and when more of them run, we will see the true comparison. My guess is that by next year we will see LLY's doing about exactly what the LB7's are doing with identical mods. Just a hunch though.

You should have some more data after this weekend. I don't know if I am the only LLY running at the NEGTG, but I will unhook the Juice, and run it stock and then run with the Juice (but only on level 3, and MMAAYYBBEE level 4, I'm a chicken). That should get some data even though the no juice runs won't be great without some time for Al to learn how to shift. I haven't done much at all, just exhaust.


Dennis

baimpala
I had the same concerns regarding shift quality after increasing the power levels so here is what I did. Ran the Quad on the highest setting for a day or 2 before and also on the way to the track. I used this time to "help" the Allison learn, I ran through all gears several times each time I variedthe amount of throttle input. When I got to the track the trans had learned and was ready so I left the box set on hi, made my runs and eventually ended up running the TTS. That way the trans is prepared for WOT under full power and when you turn the power down the trans will not shift great but rather than slide in like it does after the power has been turned up it will tend to shift harsher or firmer until it relearns. I should have made a few passes at stock power levels but I was having too much fun running laps to stop!http://www.dieselplace.com/forum/smileys/HiHi.gif


Besides, after installing the TTS the trans always shifts like stock with minimal learning if any required.

baimpala


I would run the Juice on level 4 for sometime prior to getting to the track. This way the transmission has a chance. Once the runs on level 4 are made back down to lower levels and make your next runs. Remember you need to unplug the Juice under the hood to get back to stock levels as level 0 still gives a timing adder. Running this way you will not hurt the transmission like you will if you run the other way ( 0 power upto high power). Most of all have some fun. http://www.dieselplace.com/forum/smileys/Cool.gif

Thanks for the tips gents. I screwed up my earlier post. I've been running level 3 for a while. That's how I'll make a few passes first. I might run level 4 once or twice and see what happens. After I run level 3 a couple of times, then I'll unhook and run stock to see the difference. It won't be perfect on the stock pass, but at least I'll get an idea how much difference there is between the two.


Thanks again,
Dennis

Why not run it on level 5? A few passes won't destroy your allison, gradually let it learn at the higher level before running WOT and don't beat on it all day everyday.http://www.dieselplace.com/forum/smileys/Evil Smile.gif

Great self control by the way!


Edited by: RaceHemi