How much smoke

[Snow man]

My father has a 2001 auto,3500,I put DD2's in it,and he has an edge EZ box. if anyone else has this combo,how much smoke are you getting?I have the jumper in the EZ all the way to the lowest setting,and smoke is still real bad on takeoff,wide open it lays a steady trail,not terrible,but more than he like. My 2000 auto,truck seems to have the same power as his,I just have an edge Comp,and i have zero smoke on setting 5,but I still have stock injectors. We had DD3's in dad's truck,but removed them,the smoke was so bad that you couldnt see the road behind you. I checked all the injector tubes,no nicks,they all came out fine. Its just funny how i have just as much,if not more power,but zero smoke,just a quick puff if you stomp it off boost. If you stomp his off boost it will fog the area behind you for a few seconds til you get boost. should i be gettin this much smoke with his dd2's and Ez.

 

[Bigsaint]

Can't comment on the 2's, never had them. I did run with just the EZ for a while, then the EZ and step 3's, then the EZ, step 3's and a TST comp. , and finally the current set up is TST,EZ, BD step 5's. Here's what I have found...



With just the EZ, even on the most aggressive setting, all I could do to get a small puff of smoke, had to really get in it with low boost for a wisp of visible smoke.



Added the BD step 3's, no longer a problem creating a fair amount of black smoke, though most driving was smoke free. Step on it hard with low boost gave medium thick smoke 'till the turbo spooled up, after that clear running.



Added the TST box, believe it or not, not much of a change in smoke, the turbo spooled up quicker which surely helped matters.



Added the step 5's, can no longer do a smokeless start, especially on a hot, humid day ( my limited testing finds the humidity to play a larger role on the smoke issue than the heat alone). If I start in 1st gear, run the rpms up to 2800-3000 between shifts , very little smoke before spool up. On the other hand, , if I nail it with low boost, you will fully believe that you have left the road and are now following a coal train.



Short story... we have a bunch of good ole boys from Delta Gulf working on a gas line in town. I worked an O. T. detail with these guys for one day, couldn't ask to meet nicer, down to earth folks. Most of these guys drive either PSD's or CTD's and love their trucks and diesel engines. The other day I stopped on my way into work at a local deli and saw to of the workers eyeballing the truck (read stack). I starting chatting with them and they asked if I had a problem filling the stack with exhaust from that little I-6. I gave them a and said I'll show you when I leave, you decide. I left the deli in second gear ( which will smoke pretty good by itself with low boost), shifted to 3rd and then 4th by the time I hit 35, then put it to the floor . I swung back around and found them both almost bent over in tears, said they never saw so much soot coming from a diesel, let alone a 24v'er. I gave them both a photo copy of the TDR mailer and bid my farewells.



Needless to say, I reproduced the same stunt again when I left .



Bottom line is smoke ain't for everyone, I would stay away from the larger injectors and stick with a fueling box if smoke concerns you. This way you can control your output. As for me, I'm keeping the 5's, the felt HP/TQ increase with the injectors is huge, even with the ETH. Hopefully, I will find the time for another dyno sometime soon to prove my seat O' pants meter.



Scott W.

 

[John Berger]

Hey Scott, they allow that kind of behaviour in New Jersey, now? I'm surprised the EPA Nazi's aren't banging down your door and asking to see the special permit on your truck; one of those permits that it seems New Jersey requires for just about everything. Has it got better since the Republicans control the legislature? I always detested those vehicle inspections. If you got a real bureaucrat doing one, they could make your life a living hell.

 

[Bigsaint]

They gotta catch me first

lol, you got that right, John. Between the inspection Nazis and a permit requirement for everything from putting up a shed to requesting a standing head call this state is for the birds. I'm biding my time until retirement, too many years to count, then we will be heading North.





Scott W.

 

[Archive]

Scott,



That was a great post. THANKS!!!

 

[Snow man]

Scott,thanks for the reply,I think something is wrong with Dad's truck,I still suspect the injector tubes,so i may buy a few new ones,and swap them out. He is getting to much smoke,IMO considering he only has DD2's and an EZ.

 

[SLightfoot]

I don't really see how it could be the injector tubes.

If it was injector tube problem, you would see hard start symptoms after a cool down period, from fuel pressure leakage.



Given that you say you see so much smoke, I would start checking all the exhaust-turbo connections and the intercooler hoses to make sure you aren't losing boost pressures somewhere, causing the turbo compressor a little while longer to pressurize the system.



If the smoke is black, and you don't have a defective injector, I would have to believe it isn't getting enough air.



That's my thoughts.





Shawn

 

[Snow man]

I already went over the intake tract,all bolts,and clamps,I did notice that a week after i put the injectors in ,the air intake horn bolts seemed to loosen up a bit,but i tightened them up,and it didnt seem to help any. I agree it sounds like the motor isnt getting enough air. Unfortuntley,getting Issrproo dgitial guages right now is like pulling teeth,Ive been wating for them over a month.

 

[Big White Beast]

Gaskets....

When I pulled my intake horn off to tap for my boost gauge one of the gaskets looked fine. Upon further inspection it did tear. Replaced it and everything was fine. I would check the gaskets.



From what I've read around here it definitly sounds like a boost problem. One more reason why gauges are so important.



Just my 2¢ worth,



Garrett

 

[Vaughn MacKenzie]

Hot weather makes a big difference

The climate you are in can make quite a difference in the amount of smoke you generate.



With my DD2s and BullyDog CPC I could really bench a cloud on takeoff and also make a pretty good continual haze with temps in the mid 90s last week.



This week it is only around 80 and cools off pretty quick in the evening. What a difference that makes, smoke is reduced by at least 75%!!! It is alot more responsive too.



I went with DD2s versus the 3s partly because I wanted to keep smoke in check during the summer. It often hangs in the upper 90s to low 100s for days on end around here.



Vaughn

 

[Bigsaint]

I agree 110 % with Vaughn. We are notorious for humid summers here, and while I believe that the heat has a hand in the smoke output and decreased performance, the humidity is what makes the step 5's go from a smooth idle and, hmmmm, somewhat lower smoke output to . I finally figured out how much the humidity played a role. About 2 weeks ago, I left work at 2310 hrs. , noticed a bit more of turbo lag, got home, let the truck idle for a few minutes while the turbo cooled down and noticed that the idle was going from very smooth to a very distinctive " romp, romp, romp" then back to smooth idle, etc, like it does on hot days. The outside temp was 65 F, the humidity was 92 %. From what I've seen, anything over 60 % humidity downgrades performance substantially. Guessing that the thick air and showerheads don't mix so well. Should be interesting to see how they perform in the below freezing temps.



Scott W.