Wow. Don't know what to say.. Is it pretty smokey?

 

No, its amazingly clean, no smoke when stock

even with the tst at 4-2, just a light haze full throttle

Im boggled too

 

Do you think it could be the probe location?Reading hotter then others

I dont know if you noticed it when I was on the dyno with the hood open, but it is on a 45 degree angle (toward the back of the engine) on the top of the manifold, just outside #4,

I really have to learn how to post pics

 

I don't think the pyro is the issue here. I have seen many installed in that location without any problems. As long as it is not touching the manifold with the tip it should be fine. Still stumped..

 

Both the bhaf and the aem dryflow filter should let it breath good enough, right? OR

maybe there is a dead cat stuck in my muffler, causing excessive back pressure/high temps

 

Air filter shouldn't be an issue at this point. Exhaust restriction?

I have one suggestion now that I have read your mods.. The tone ring. I have read that alone the tone ring mod is OK. But with the TST or other more aggressive boxes, the timing added by the box + the tone ring mod is a little aggressive. But typically adding timing doesn't raise EGT's.

 

I thought about that today to, dont really see how it can hurt,
I know as soon as I set the tst to 1-0 (timing only) from 0-0 the temps will drop ~100 degrees instantly
and if it did slip, it could only go back to stock.

The exhaust has a mbrp muffler turned backwards (the little cups facing foward) but still straight 4" right through. so it shouldnt be to restrictive

 

blue dually, have you looked at your exhaust for a crushed pipe or any physical damage. You never know.

 

Any chance your exhaust brake is partially shut?

 

I glanced at it the other day when i was checking oils etc, will look harder tomorrow,

Im getting more responses/tips here then when I started a thread for this problem thanks,

Jordon

 

Tate, I looked at that to, Its maybe 15 degrees off of center. Plus the way the bd is designed (the butterfly is off centered)it "shouldnt" close by itself.

I should put the stock elbow back in to see if that does anything.

 

At one point in my search for my boost problem, it was brought to my attention that I may have a collapsed muffler. What goes in can't come out. In my case, it wasn't a concern but it's something to look into. I changed out the muffler anyways (it was falling apart to begin with)

I'll have a picture of my boost tester posted here tomorrow night. I've been a little busy and haven't had a chance to do it.

Reading these posts has me thinking along the lines of what I went thru in my search. My truck runs awesome in every way. Everything I checked or adjusted or whatever was in spec, nothing wrong, not leaking, not blowing any oil out the back, front bottom or anything. I would do a boost leak check and see what happens.

It still amazes me how such a tiny little "leak" lowers your boost when under pressure. No matter how hard I beat on my truck, it won't go over 20 lbs boost but the EGT's go nuclear! At 120 kph on a flat level highway, I'm running 1000 degrees EGT and 4 psi boost. Kind of scary isn't it? I just breathe on the pedal to pass someone and it will hit 1300 and climb in a heartbeat.

If you have access to a Smarty, put it on 1/2 power and see what it does. It will be a huge gutless pig, but it will eliminate some of the driveability issues regarding EGT's and help eliminate some components. I went so far as to change my truck totally back to stock and every where in between and it made zero difference in my high EGTs.

I was told that when you boost test the motor, you put the tester on the turbo inlet and pressurize it to 20-25 lbs and pressurize the entire motor. It should hold pressure for about 4 minutes or so with a very very slow leak. If you have a big leak, like mine, you will hear it for sure!

On a cold morning, how much steam or vapor is coming out the blowby tube? I know it sounds corny but securely put a balloon or condom on the blowby tube and go for a quick rip. If it's inflated big time or gone all together, that's somewhere to look.

Like I mentioned, my truck runs totally normal with exception to high EGT's. Without gages, I wouldn't know there was a problem. Pull the valve cover off and pressurize the motor and all the intake valve guides are bubbling oil regardless as to whether the valves are open or closed.

The tester is easy to make. I think I spent $20 bucks at Home Depot as well as had a few fittings here at home. It's a regular piece of equipment in the toolbox now. It's that easy to use.

I'll post a pic tomorrow as soon as I get home from work.

Jeff

 

Wow Jordan that is wild,,,, I dont think you are having a leak issue,, seeing as you were able to get 40+ on the dyno.. 30 stock is good. Maybe looking after the turbo is the ticket..... I think that the exhaust brake is supposed to be verticle,, no angle,,, good place to start I guess... I wish I was closer I would love to help you out more with this

Kevin.....

ps, I have never in everyday driving got over 1200

 

Ya im stumped, Where abouts r u located. Im not sure about the muffler being backwards thing though, if it is easy to switch, id try that cause that might hold to much B/P on the turbo and not allowing the exhaust to flow properly. Also, id get the nubers like stated above and call them in to II. The only thing i can see it being is a turbo that was misslabled and shipped out. I know that with my stock turbo on my 03 i can hit 40 all day with not problems and im stacked. the highest iv ever seen is about 1350 when a stang was tryin to me,but it didnt happen very fast for him thats for sure. If u are close enought to red deer area, i could come down and take a looksy with ya try to figure something out for ya. I know a little bit about stuff and we might be able to pin something down betwwen the both of us.

 

Ill try the blow-by balloon idea today, ill also swap the stock elbow back in,

The funny thing is that I havent touched any thing else, but the turbo, in over a year.

I pulled my trailer to Edson and back, last summer, with the same "twins" program, same muffler, same brake, everything but the turbo (still stock), with the tst at 3-2 or 3-1?.

110-115km/h up and down the hills west of edmonton, and barely reach 1350, just cresting the top of a hill, with the cruise set. She pulled 26000 lbs like a champ.

Im about an hour southeast of edmonton