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REVOlution software now available

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Too much smoke?

For those of you with a South Bend DD...

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some comparisions to other combo's.

I keep the rail in check at no less then 20K. 22. 5 preferable.



I've put on software #7 with the revo. a little less smokey on slow acceleration. But not 4. 11 haze (well, 90hp injector haze). I still can't get the tires lose... with the TST settings off it clears up to a nice haze tho. seems to pull as hard as #9.



Now, with injectors in play. I'm curious if going to biggest number is really all that important anymore? with 4. 11, 7 was slower then 9. easily felt. add a little more juice with the tst on 2hp and 2rail and you got 20-22K and 50psi of boost. I can't seem to get anymore then 50psi of boost with this little II PS62. tho, I need to do a higher pressure test of the CAC system. maybe I still have a little leak? I bet my driver pressures aren't very good either. who knows.



TST alone. (ECM stock). with stock injectors. I'd run 8 or 9 tq 4 and could keep the rail in check. 10 would pull the rail down below 20K and make some smoke. Boy does this box know how to spool a turbo! SNAP! and your gone! Now with the DDP 90's anything more then 5 and I'd be draining the rail. Same turbo "snap" spoolup. This box however has ZERO smoke. even clears up the haze a good bit!



The revo vs the current TST, I'd think the revo is a step back! Tho, I think it would be fair to compare #5 (90hp tune) vs #5 HP (about 100hp) on the TST on a dyno to see for sure. The downloader will always have better low end and well, naturally the smarty runs well up to 3500rpm.



I think I'll go out to the truck now and load up #5 and then between now and lunch re-load 4. 11 and try to drive the same roads and see if I can get my acceleration back :)



There is a such thing as to much programming I suppose.



but in theory, with stage 1 cp3 kit and injectors, you should have to half your programming to keep the same hp level. but then again that's now always the case I suppose (as with 4. 11)
 
In a very, very simple sense, performance injectors provide h. p. gains by allowing more fuel to be injected for a given duration (because the hole size, hole number, hole shaping, etc permit a higher fuel flow through the injector).



Injectors offering 50 h. p. increase or so, are close enough to the stock fuel flow that timing is not effected very much.



However, with large injectors (100 hp, 150 hp, 200 hp, etc), a significantly larger amount of fuel is being injected compared to the stock injector. Fuel is injected at some point before TDC. Too much fuel injected before TDC is a bad thing, and will cause pre-ignition/detonation of the fuel, and will cause too high of a peak pressure rise to be healthy for the engine.



Thus, when running large injectors that are dumping alot more fuel, timing has to be adjusted back toward TDC to accomodate.



The similar thing occurs when running higher rail pressure... more fuel is injected sooner, which has the supplemental effect of increasing timing.



--Eric



I know exactly what you were saying, but then how come you advance timing in older trucks to give more fuel more time to burn? At least thats what I have read. Sry if this is off topic.
 
know exactly what you were saying, but then how come you advance timing in older trucks to give more fuel more time to burn? At least thats what I have read. Sry if this is off topic. <!-- google_ad_section_end --><!-- google_ad_section_end --><!-- / message --><!-- sig -->

I probably did digress off the topic some... but to answer your question.

There are many things which effect when the injected fuel will begin to "burn" in the cylinder. These factors include compression ratio, timing, cetane of the fuel, additives, injector flow rate, injection pressure, spray pattern of the injector, swirl/mixing, boost, egr, etc.

On an instrumented engine on a dyno, you normally watch the pressure trace for the cylinder, along with peak pressure, pressure rise, temperatures, heat release, etc. The somewhat commonly held value is to keep peak pressure rise less than 10 bar / degree for engine longevity. In the normal truck on the road, you can usually hear a knocking sound when the pressure rise reaches this level.

The burn time is generally observed at 10%, 50%, and 90% burn times in relation to crank angle, or to TDC. Too much fuel burning before TDC causes high pressure rise and is bad for longevity of the engine. Likewise, having the fuel burn too late in the cycle, and thus peaking too far after TDC, results in wasted power/economy.

So, as a rule of thumb, the timing from the OEM is generally retarded for emissions compliance, and can be significantly advanced for performance without being detrimental to engine longevity. However, start dumping more fuel in there with bigger injectors, fueling boxes, higher rail pressure, etc, and timing has to be retarded accordingly to keep the pressure rise, or "knock" in check.

Did any of that make sense?

--Eric
 
REVO Thumbs Up!!!

I loaded the REVO and now have 160 miles on the tank.

i think it is great!! Overhead went up a full 2 miles per gallon

And the fuel gauge hasn't moved as fast as it used to. I'm using catcher 3 and 4 on the timming everything else is default.

Great Job Marco and Bob. Couldn't be more happy.

This is the only thing I have ever purchased that could be upgraded without extra cost. I tell everyone with a cummins to get a smarty.

My clutch isn't very happy, it will hold most of the power if I roll into it real slow. If I nail it, the tach flys up like its in neutral:-laf:-laf

Dennis
 
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Thank you.

Just a thank you to Bob and Marco for the Revolution software. I'm running TM#1,Timing#2,RP#2 and wastegate on stock. SW#1 is Casper Milktoast to most owners but an extra 30rwhp with quiet, minimal smoke operation is all I asked for and these guys delivered. With my stock clutch and camper load,I have averaged 14. 5 mpg with my old tune. Hopefully maintaining a legal speed and soft pedal,plus the new tune I can achieve better. We're going camping in the local mts. next weekend,so it'll be a good test. Now if we could just get the tire manufacturers to cough up the fabled 265-85-16 or 17 tires,what a wonderful world it'd be. :)
 
I Like the REVO Too!!

:) I changed from the 411 software to the REVO and I really like it. I only run on SW#3 mild torque management. I adjusted the REVO to #4 timing to improve fuel economy and I have very little if any timing rattle. And now the truck seems to have a little additional power too! Before the 411 software I was not happy with the timing rattle. The 411 had no rattle but the power seemed a little less. Now the REVO on SW#3, timing #4 seems perfect for me. Thanks Marco and Bob!!:)
 
Great Job to the Smarty team (Bob & Marco, Others)

Hi Bob



I set the Rail PSI to #3 is the RP at idle increased or at higher rpms. At idle it still the same w/no increase to the RP.
 
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i've been running catcher 9 stock timing, mild rail psi, wild tm. it's super scary on bottom end compared to 4. 09(wild tm) like i used to run, but it doesn't hardly smoke except if you are really dogging it down low
 
catcher 3 with #4 timing here. I notice a big drop in EGTs from a good pull in 5th gear. anybody else notice it? i wonder how much duration was removed in exchange for rail pressure? certainly the old 60hp setting used a lot more duration???
 
heck, Ive got the TNT loaded right now, #6, no timeing, #2 RP, #3 TM, and my TST on 2/1 and have far reduced smoke level over 4. 11 on #8 and TST on the same settings.



I'm just hopeing #6 on the TNT is comprable to #8 on 4. 11. heck I could shut down intersections with 4. 11 on just #4.
 
Bob Wagner,



What about a new menu option:



Smoke starts at:

0 - When I hit the pedal - "Bug Killer" :-laf

1 - 1500 RPM - "mild compromise"

2 - 2000 RPM - "Cleaner Trailer"

3 - 2500 RPM - "Greenish"



Basically a means to limit "quick fueling" until a certain rpm. I've noticed even on "stock" TM I still get more smoke then when "stock. " It seems like stock isn't really quite stock in regards to how it lets boost build until more fuel comes on.



In general, I'm pretty happy with the Revolution. Sure is nice not having to load programs back and forth into the Smarty when I want to switch TM or Fueling levels... THANKS!



WOT
 
Any updates on this.



I just got my truck fixed and loaded this up last night.



I loaded up Catcher level 5.

Everything else set to 1. It produced a lot less smoke but not as strong as the previous SW I was running.



I just changed the TQ, RP, and timing to 2 but have not driven it yet.



I am looking for a good towing SW with minimal smoke.
 
Any updates on this.



I just got my truck fixed and loaded this up last night.



I loaded up Catcher level 5.

Everything else set to 1. It produced a lot less smoke but not as strong as the previous SW I was running.



I just changed the TQ, RP, and timing to 2 but have not driven it yet.



I am looking for a good towing SW with minimal smoke.



Curious what weight you are towing and what results you have had with these settings or others. I haven't towed with the new Revo software yet. We are pulling out tomorrow, and I haven't decided which levels to run yet, but it will be conservative(28,000 lbs gross).
 
Revo Tnt

I have been running the REVO TNT for the last week and finally I got the Smarty as it was originally delivered. Very touchy peddle response, tons of smoke and rear wheels that run on marbles.



Thanks Guys.
 
Where's the Beef, oops I mean the Beta?

Not long ago Bob asked those that wanted to be a beta tester for the REVO and perhaps the TNT as well. I left him my email address, as instructed, and have never heard anything. Is there a place that anyone can download the beta's or is it a pick and choose situation of Bob's?



I have tried the Revo with many varitions and am getting more smoke then I can accept. I pull white new RV's commercially. I change sw's when I change from loaded to empty, that is where the Revo is really nice. Otherwise I am loading the Smarty as I am driving some 40 minutes so I can load the changed sw the next time I stop.



Peter
 
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