What to do know?

[Owned]

Hooked up the manual boost controller from mike today set it in, not 100 percent accurate but well work? 2nd gear boosting 12-13 3rd gear 14 steady. A/F look fine, shiftings feels fine, I'm having a hard time boost launching with more than 3 psi. Any suggestions? Just won't climb in boost. Running stage 1, atr pit bull chip? stock TC. One more question, how to I actually record a run on datamaster? I've tried file open, give the run a name, hit rec on then start, sometimes monitor can't get it to record, :rant:

 

[Tooky]

Re: What to do know?

What kind of manual controller. Is it a bleeder valve? Because those are an inferior design that sends a partial signal to the wastegate all the time, telling it to open (causing slow spool). The superior design is something like a Boostvalve ball-and-spring controller that doesn't send ANY signal to the wastegate until its near the peak/desired boost set point.

To save a run on DM you have to first do a File Open (from the recording window) and pick a filename, then it lets you hit the red Rec On button turning it Green and saving to disk.

You can also read the Help file in DataMaster for information on activating "AutoLog" which creates files for you automatically without having to name them individually. (I dont use this feature because I like to name my files to specify what exactly I was testing/tuning in that run)

 

[Owned]

Re: What to do know?

I'm running a Norgren manuel boost controller from RPM, do you think I should change it out? So boost conditions as of know, well likely be related to the boost controller?

 

[Tooky]

Re: What to do know?

Hmm I'm not familiar with that unit or the design of it. Might have to contact RPM and ask them for support. Or try borrowing a buddy's boost controller and see if you can rule out the issue.

If it spooled great and the ONLY thing you changed was the controller, and now it spools sluggishly, then it would seem likely the controller is the issue.

 

[ghettosled]

Re: What to do know?

i would suspect the ATR chip, and your tune has alot to do with it. Probably overly rich, clogged exhaust or not enough timing. Although the STG1 will not spool as fast as a stock turbo, you should be able to launch with 8-10 psi on a stock converter with ease. Being that your truck is only leaving the line with 3psi, your turbo shaft speed doesn't have enough momentum to make full boost immediately. When you can get it to launch at 8-10psi you will notice your rpm's are already in the powerband and your boost will shoot up much faster.

If you want to rule out the boost controller simply remove the line to the wastegate completely. See if you can make more boost off the line and if you are able to hit 14+psi in first gear. Probably wont make a difference. There is no question an electronic boost controller is a better solution but you can't compare apples to apples when one costs atleast 4x as much as the other.