Here I am

Smarty, the new CaTCHER tool.

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bark stops here!

lighted rams head

Took a 300 mile long round trip yesterday with the truck - Smarty on program level #8, and the Comp on 1x1 - lowest possible adjustment for the Comp. Goal was to check fuel MPG in this Smarty/Comp configuration, since in this particular mode, I have the full availability of the Smarty's top power capability, yet can instantly control it with the push of the Comps buttons from inside the truck with no need to stop and load a different Smarty program when driving conditions change.



It works absolutely beautifully! I can run the Comp up at maximum levels for HUGE power - and smoke plus EGT - or the lowest settings for still abundant power and the famed Smarty responsiveness.



The best of BOTH worlds!



SO, in this case, my travel route involved some town driving, several 5000 foot elevation mountain passes, and cruising speed between 60-65 MPH.



I had great power and throttle response in the steep mountain grades - ran in O/D except where narrow road and curves force a shift to 5th gear. Power was there in the steepest grades and elevation at the touch of the pedal - smoke and EGT were WELL within limits at all time - EGT ran about 800 degrees in the steepest grades.



SO, what was MPG?



How about 22. 2 MPG? That was hand calculated, and EXACTLY the same as my pre-Smarty trip over similar terrain to California and back last Thanksgiving - and before the new TOYO M55 285's I just put on the rear of the truck - dunno what they might have added to the mix...



The lying overhead average MPG was reporting 28. 4 MPG, but of course we all recognize that isn't accurate even on stock trucks, much less modded ones...





The ABS Smarty feature works great for adjusting tire size - the 32. 75 measure I loaded for the TOYO 285's was very close to roadside mileage markers, only a mile off in 100 miles - so this morning I made what should be a proper correction up to a full 33 inch tire size.



All in all, extremely satisfied with the Smarty - especially as enhanced by use of my Comp - they play well together!
 
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Hey you, buddy!



Who are you and where's GaryK7GLD? Gary would NEVER hot rod around! And he sure as heck wouldn't STACK two performance programs TOGETHER!!



Fan out guys, the real Gary's gotta be around here somewhere! :D
 
ThrottleJockey said:
Hey you, buddy!



Who are you and where's GaryK7GLD? Gary would NEVER hot rod around! And he sure as heck wouldn't STACK two performance programs TOGETHER!!



Fan out guys, the real Gary's gotta be around here somewhere! :D



HEY - I was a Hotrodder before MOST of the guys on this board were even a devious gleam in their dad's eye... :-laf :-laf
 
The real Gary left months ago :eek: ,do we really know if the original came back,i remember when Rip's exhuast and the 1. 6's we're a big step for Gary :-laf :-laf :-laf . Glad things are working out for you,Gary(original or not)---22. 2mpg is good in my book for a 7000lbs truck running 33 inch meats. Hope things keep getting better for ya. ----Later DW.
 
All in all, extremely satisfied with the Smarty



Gary,

are you sure you're fine? :D

I never would have expected such a compliment form you!

THANKS!

BTW. Welcome to the dark side! :-laf



Marco
 
Marco said:
Gary,

are you sure you're fine? :D

I never would have expected such a compliment form you!

THANKS!

BTW. Welcome to the dark side! :-laf



Marco



Marco, I've *ALWAYS* been one of your biggest fans and supporters - but for me and my use, it took the Smarty to deliver what I personally wanted and need. Am I glad I waited for what I got - YOU BET! ;)



And in spite of a few past ruffled feathers and unfortunate misunderstandings, I *remain* and continue as one of your biggest fans and supporters. Oo.



Ya done GOOD, and we ALL benefit greatly from your efforts!



THANKS!
 
Gary - K7GLD said:
Marco, I've *ALWAYS* been one of your biggest fans and supporters - but for me and my use, it took the Smarty to deliver what I personally wanted and need. Am I glad I waited for what I got - YOU BET! ;)



And in spite of a few past ruffled feathers and unfortunate misunderstandings, I *remain* and continue as one of your biggest fans and supporters. Oo.



Ya done GOOD, and we ALL benefit greatly from your efforts!



THANKS!



It's starting to gett deep now... ... ... . :D
 
Like Gary, I tried sw#8 with the Comp Box on today. I got scared and backed off the throttle on my WOT run. I thought something was going to break. Keep in mind I don't have my wire tapped. Between the Smarty, 6's, cam and smallish charger, the truck spools violently in my opinion. :D Now I am really worried about the 53 ripping right in two. lol



Dan
 
Given how fast the throttle snaps closed when on higher software levels, I can see the propensity for aftermarket turbos to want to experience compressor surge ("bark"), especially now that I am fooling with SW #7 and my PM3 box on Level 3... makes for touchy throttle.



Is it possible to write into Smarty software to ramp down the throttle to zero over a few tenths of a second, rather than snapping closed? It seems this would reduce driveline shock and help alleviate some of the turbo bark issues.



If I understand APPS function correctly, it outputs a voltage which gets translated into plunger movement in the VP44, so a logic loop saying if voltage dropped to idle faster than a certain rate (dv/dt), Smarty software in ECM would override that and ramp down slightly more slowly.



Just a thought...



Tim



p. s. what a phenomenal product the Smarty is! I am teasing myself by holding off on going to SW#8 or #9 for now, just enjoying the push in the back that I get now.
 
Food for thought, but I am not sure I would want a Ramp-Down function. My reasoning would be for an emergency situation and in particular with an automatic. Just thinking out loud here. With a manual you can shift down by clutch. This would take a second as you have to engage the clutch and hence disengage the motor from the drive train.



With an automatic, what would happen if you got into an emergency and needed to drop your applied power level NOW. Would a Ramp-Down function potentily cause a delay that might have an adverse affect on your ability to get slowed down in time :confused:



It sounds good and like could be a good thing to prevent turbo-bark, but turbo-bark can be controlled with the foot.



Am I making sense here with my line of reasoning and wondering :)
 
All of the third gen trucks come back to idle slowly. It has to do with rail pressure. Ask a third gen owner what issues it causes. It didn't take long for me to get used to it on my brother's truck. I don't think it would cause an accident.
 
It sounds good and like could be a good thing to prevent turbo-bark, but turbo-bark can be controlled with the foot.



Am I making sense here with my line of reasoning and wondering



I understand what you are saying - but I think maybe you are over emphasizing what Tim said and means when he says:



Is it possible to write into Smarty software to ramp down the throttle to zero over a few tenths of a second, rather than snapping closed? It seems this would reduce driveline shock and help alleviate some of the turbo bark issues.



We're not talking several seconds here, just a bit more gentle tapering off when the throttle is released, either purposely, or accidentally by road conditions.



I can certainly agree with Tim - on my 300 mile round trip to visit my dad, as posted further above, driving down a washboard or similar rough road such as he has near his home gets REAL jerky, especially in the lower gears, as your foot cannot maintain steady pressure on the throttle - nor is it anything easily "controlled by the foot"...



By no means a major issue, but worth consideration.
 
The turbo bark I have is when the auto transmission shifts from 3rd to 4th pulling a heavy (13k) 5er and boost is over about 15#.



Trany shifts, rpm drop rapidly, compressor side has more psi than drive side, bark happens.



I try to compensate by watching and feeing the 3rd to 4th shift and during the shift or just pre shift get the boost below 10# (let off the pedal) so there is not as much a psi differential to cause the bark.



Bob Weis
 
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