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Glenn, what is the pressure and DC at WOT for at least 8 seconds?
Travis, give me a hint? Where or who is building them?
Joey, I hate running my auto thru the gears, but in 3rd (70mph) to defueling my DC is about 46 and I have seen 3,700. Its less time then 8 seconds though, LOL! I haven't tried Tony's new reburn that I just got yet. Reading this thread I really was surprised to hear one IPR for the duals!! Pulling my 15K 5er up a hill a few days ago I was at 26 DC, 2600psi, and 15 psi boost when I tripped the 1211?? I don't know what's going on?
Hey Phil, I had to answer Joey's question!! hahahaha
Oh, by the way, the code 1211 doesn't show up at WOT run at 3,700, it will show up at mentioned above???
Last edited by oldbird1965; Jan 27, 2011 at 10:24 PM.
Reason: forgot to mention
Glenn, just unhook the trailer sometime and take it out on an open road. Throw it in 3rd gear and go WOT, while data logging. Log ICP, DC, RPM's, injector pulse width, and mass fuel desired. That should give us some idea what's happening.
The only way I can see tripping a 1211 at 2600psi, is if your Tuner is demanding much more pressure. Though your DC numbers say otherwise.
I wanna know why you getting 3700 at WOT but only 2600 at a 26% Duty Cycle under load.
If your under load, DC should be up higher.
Thats my thought anyways.
Talyn, I don't pull my camper at WOT, if I did the EGT's would be thru the roof. I asked Tony about the tunes and if they have an effect on code 1211, I haven't gotten a answer yet.
Originally Posted by TerminatorEng.
Glenn, just unhook the trailer sometime and take it out on an open road. Throw it in 3rd gear and go WOT, while data logging. Log ICP, DC, RPM's, injector pulse width, and mass fuel desired. That should give us some idea what's happening.
The only way I can see tripping a 1211 at 2600psi, is if your Tuner is demanding much more pressure. Though your DC numbers say otherwise.
I haven't done data logging yet, that's a good idea.
at WOT your creating about all the stress you can with out a load unless your going up a hill.
When you have the camper on and accelerate you are lugging the motor with a load then.
Thats how I was comparing them.
DC just seemed low for pulling a load vs the PSI you were making.
Hmm.. In my tow tune I get 2000 psi with close to 25% DC.. your producing more pressure than desired IMO and if that is the case, I'm not exactly sure what would cause it since you have a brand new IPR.
William, the Duty Cycle is linear to ICP. As ICP rises, DC rises. It does not matter whether or not your pulling a trailer, if your pressing the accelerator X amount, the tuning will call for XXXX amount of ICP whether your pulling the trailer or not. I can go WOT pulling my F-150 on a car hauler or without a trailer and I'm going to see the same PSI and the same DC% each time. You are right in that DC% is too low for the ICP being seen though.
I never lug it Talyn. I tried to 'record' today and when I wanted to 'play' I could not select it. It would jump right over that option. The directions said something about selecting record again, so I tried that and it would still jump over the play option so I couldn't select it. I guess I don't know what I'm doing with the scan guage.
There was so much traffic today I couldn't concentrate on DC & ICP but I think its more in line with what you were talking about Travis when you pull. Very little smoke on this reburn and also seems like less power. I'll know for sure when I pull next Wed. I have a feeling though that Tony pulled back the smoke to much?? Oh well, I need live tuning.
That's what I was telling you Glenn.. If you want low smoke, your going to have to deal with a bit less power. I deal with some smoke in my tow program b/c the only time it smokes is taking off from a stop. After that all is well and I have decent power there when I need it. We pulled almost all the smoke out of my econo tune... Hardly any power. Feels like it is a stock truck with a chip really.
That's what I was telling you Glenn.. If you want low smoke, your going to have to deal with a bit less power. I deal with some smoke in my tow program b/c the only time it smokes is taking off from a stop. After that all is well and I have decent power there when I need it. We pulled almost all the smoke out of my econo tune... Hardly any power. Feels like it is a stock truck with a chip really.
I just want the happy medium and maybe I have it. If I can get it up to 1,200 EGT's, even with the coolingmist, then I am using all the power I can. I have never opened it all the way up towing because of EGT's. Tony emailed me and all he said was 'any word'? LOL
Sounds like Tony. LOL. I have gone WOT towing my F-150 before... Saw 1600* before I even got to 70mph. I was racing a Hemi that was next to me pulling a smaller lawn mower trailer. LOL
HaHa, I've been up there too. All the time I'm thinking that 'I'm almost to the crest of the hill, why let off now'! Truth be told, I've done it to many times. Actually, this new EGT gauge ISSPRO I got from Clay seems to read lower then the autometer I had.
Glenn, do not worry about hyjacking this thread. It is very much related.
Plus I got my questions answered. Joey that sounds like a very simple and very effective system. The only thing I was concerned with was the balance of pressure, but I guess thats a non-issue with your set-up.