ATS Compound Wastegate setting....

[Cory]

On the ATS compounds, for more boost, I'm assuming you turn the rod on the wastegate accuator clockwise to move it closer to the accuator? Right now with the compounds, I'm only seeing 38 psi.

 

[AK RAM]

Yeah, clockwise towards the actuator. You want to shorten the rod to raise boost. One full turn can make a big difference, so you might want to do just one turn and take it for a test drive to see where your at.

 

[driverno8]

What's ideal? I was at 40psi when I got them and turned it up to 52psi. Is there some majic number?

 

[AK RAM]

Even with the exact same set of twins, every truck is gonna be different, so there is usually no magic number. As a general rule though, if EGTs are in check, then there is no reason to stress things any more than you have to. Lots of boost is not always what you want. I would strive to keep boost as low as possible while keeping EGTs in the range that you want them. If you're running 55+ lbs of boost with twins and your EGTs are still not in check, then you need to install a drive pressure gauge and tune accordingly:



Raise boost until either……



a. Drive pressure overtakes boost pressure.

b. Your head gasket blows.

c. You run out of nerve.



……. whichever occurs first.

 

[lmills]

Even with the exact same set of twins, every truck is gonna be different, so there is usually no magic number. As a general rule though, if EGTs are in check, then there is no reason to stress things any more than you have to. Lots of boost is not always what you want. I would strive to keep boost as low as possible while keeping EGTs in the range that you want them. If you're running 55+ lbs of boost with twins and your EGTs are still not in check, then you need to install a drive pressure gauge and tune accordingly:



Raise boost until either……



a. Drive pressure overtakes boost pressure.

b. Your head gasket blows.

c. You run out of nerve.



……. whichever occurs first.

That has got to be the best instructions I have heard yet LOL :-laf

 

[driverno8]

Raise boost until either……



a. Drive pressure overtakes boost pressure.

b. Your head gasket blows.

c. You run out of nerve.

)

a. How do I know?

b. Not worried about it.

c. See b.

 

[lmills]

simple... check drive pressure by measuring how much pressure is in exhaust manifold. If drive pressure exceeds boost pressure, adjustments are necessary

 

[Cory]

Even with the rod turned all the way to the accuator, I cant even touch 45 psi.

 

[AK RAM]

My first thought is that you have a problem, but... ... just maybe with your ported and polished head, there is not enough restriction to build up more pressure than that? We can all dream, right. How are your EGTs at that boost level?

 

[Cory]

12-1300 Degrees

 

[redfuelrules]

That sounds hot for twins... Boost leak? Relief valve popping off early?

 

[driverno8]

That sounds hot for twins... Boost leak? Relief valve popping off early?

how about to much fuel?



I can see 1300-1400 with my twins all day long based on how much fuel I give it. But 90% of the time, normal daily driven, I'm at 1100*. Turned up is when it gets hot.

 

[OT-OF-HERE!!]

Problem

Even with the rod turned all the way to the accuator, I cant even touch 45 psi.

Are you using a boost fooler? Indust Inj and Quadzilla both have them. That may be your problem.



I have that setup and I'm running 60psi, fyi.

 

[Cory]

I've been told the JUICE does boost fooling? I have been seriously thinking about ditching the EDGE and going with the TST and Smarty. I understand the TST Boost Fools also? Right now its kinda trial and error.

 

[OT-OF-HERE!!]

I could be all wet....

I've been told the JUICE does boost fooling? I have been seriously thinking about ditching the EDGE and going with the TST and Smarty. I understand the TST Boost Fools also? Right now its kinda trial and error.

but if you've changed your turbo and upgraded it then your boost control wiring plug is hanging loose as their is NO place for it to terminate in which case you are not getting the proper signal back to the ecm for boost. I have the Ind Injec plug which matches up to that wiring and makes the boost signal happy and maybe that's why I have 60psi of boost for my ATS twins and others don't. If I'm wrong I'm sure some others will slap me around and straighten out my thinking. Hope that helps. Pat

 

[AK RAM]

I've been told the JUICE does boost fooling?

Yeah, the Juice does boost fooling. Do you still have your instruction manual for the Juice/Attitude? I don't have one mind you, but I'm told the Juice has a "boost limiting" feature and a high boost defueling feature (a safety feature). You might want to read up on those two features, find them in the Attitude menu, and turn them completely off or something and then take'r for another spin. You can bet they are turned on by default, which would mean you'd be stuck with near stock boost levels.



If you have your Smarty all the way up (level 9) and Juice all the way up (level 4/5) and those are your max EGTs, I think that is really good, especially at such low boost levels.

 

[mattymac]

but if you've changed your turbo and upgraded it then your boost control wiring plug is hanging loose as their is NO place for it to terminate in which case you are not getting the proper signal back to the ecm for boost. I have the Ind Injec plug which matches up to that wiring and makes the boost signal happy and maybe that's why I have 60psi of boost for my ATS twins and others don't. If I'm wrong I'm sure some others will slap me around and straighten out my thinking. Hope that helps. Pat

Pat, Thats just the wastegate actuator, all it does is recieve a signal from the ecm after it gets its reading from the MAP sensor. all it does is open up a valve and let boost pressure go into the mechanical wastegate actuator. It has nothing to do with boost fooling other than when you "boost fool" the ECM there is no signal to the actuator and your boost will skyrocket because your wastegate isnt opening. Thats the point of the mechanical wastegate kit that TST sends with thier PMCR for 04. 5 and up trucks so that when it does boost fool you still have a way to keep boost in check with the stock turbo.



I dont think that boost fooling is the problem here. The Juice is taking care of that.



Like AK said go into your "set limits" menu on the juice and change your boost limit, not the alert, to a higher value. The juice will cut off all fuel at whatever boost limit its set to no matter what other chips/programmers are on the truck. As for the boost actuator if you just take the valve out of the stock turbo and plug it in your fine (which I think you probably have already done).

 

[OT-OF-HERE!!]

mattymac

Tks for fixin' my head.