WickedCumminsCO
New member
- Joined
- Apr 29, 2011
- Messages
- 308
Thank you
ohh I'm sure there's some theory he can suggestion
tho. no matter what direction I go, the off boost smoke is impossible to get ride of
Jason, no matter what you do, combine big sticks and big turbos and you're gonna have some smoke trying to get it lit. Running a moderate size single with some pretty damn healthy sticks is gonna make some smoke.
On mine, even with the smaller top charger and my 37 LPH sticks, I still get a haze on acceleration, but if I'm not driving like a 'tard, it clears up within a few seconds. If I bog the motor, like right when it locks the TC in 4th gear and roll into the throttle it'll cloud pretty good; there's just no boost to clear it up under those conditions.
The main problem is that the rail pressure, timing and duration settings on the SSR are "blanket" settings. It's not like you can go in and say, "In this RPM range, I want XX timing, XX RP, XX duration. In this range, I want XXX and here I want XXXX."
You will see SOME smoke on initial acceleration, but it should clear as the boost comes on. It shouldn't be heavy, but you'll still see it.
If you're not, you're not getting the turbo(s) spooled as fast as you can.
If you pull away from a stop light and see a light haze as you're pulling off, but it clears up quick, you're doing okay.
You've got to toss heat and pressure at the turbo, otherwise it just sits there. With a little bit of smoke, comes a little extra heat and it gets the turbo(s) moving.
Unfortunately, unless you're running it on straight propane and nitrous, you're gonna have some smoke with larger turbo(s). If not, you're leaving response on the table.
The only cure for that is being able to do the "fine adjustments" within the tables and setting them to fit your truck.
SSR isn't set up like that, it's basically "coarse adjustments".
Let's say you reduce the duration to control the smoke a bit. That's great in the low RPM range, but once you bring in the boost and the heat, you won't have the fuel to make power.
If you could go, "From idle to 1400 RPM's, I want XX....from 1400 - 2100, I want this..... from 2100 - 3200, I want this, etc..", that would be ideal as it give you the flexibility to add / subtract as the engines conditions dictate.
Obviously, you need to base that on load, RPM, boost, etc., so it's a little more complicated than that, but you get the picture.
SSR is giving us more flexibility than ANY of the previous Smarty's, but there will still be some trade off's.
Jason, with your setup, I would INCREASE RP and DECREASE duration.
You've got some big sticks for that size charger and those nozzles are gonna need some pressure to atomize the fuel well.
Bump up the pressure and decrease the duration and you should see some reduction in the smoke output but still maintain good power.
Marco,
Can you lessen the pilot injection?
Jason, the pilot injection isn't the problem in that lower RPM range. The only thing turning that off will do is make the truck sound like a 12V.
At higher RPM's it's pointless, but down low it reduces the pressure spike in the cylinder. It would be nice if under the HL settings it was gone, but in the LL settings it'll just make more noise and increase the pressure spike during the main injection.
The one that's useless is the post injection. All that does is dirty up the exhaust and the oil.