Resolved Switched turbos now Tuner is giving me the runaround on a retune, need some help

[bloodnotch]

Journal turbo failed and switched to a oilless watercooled dbb and need a retune, the shop that tuned it is giving me the run around, maybe I can get some help here.

89 notch on3 kit with vs racing 6870 oilless bb turbo, on microsquirt, lu47 injectors, 255lph.

 

[Noobz347]

What was it tuned with?

Do you have the necessary equipment and software to retune? If so, upload your current tune to this thread.

 

[bloodnotch]

I do have the equipment, its on Tuner studio ms and I'll get a copy of the current tune later today, thanks

 

[bloodnotch]

here is the current tune i have in the car

 

[bloodnotch]

Here is the current tune I have in the car, sorry I took so long.

 

[Noobz347]

So, how exactly is it running that's not right?

Describe the symptoms and the maintenance that was done with the turbo swap.

Do you also have a data log from the last time you tried to run it?

Also: Looks like you're running speed density, is that correct? What MAP sensor are you running? 3 bar? More?

 

[bloodnotch]

Yes, I'm running speed density, gm 3 bar sensor, running about 13lbs of boost.
It's not that it's running bad, I'm running on the Tuner's original tune, but I went from journal bearing 6262 turbo to a 6870 ball bearing turbo, bigger turbo and from my understanding the bb turbo spools up faster, I want to make sure that is not running to rich or to lean because of the new boost profile.

The attached file is from today

 

[Noobz347]

Yes, I'm running speed density, gm 3 bar sensor, running about 13lbs of boost.
It's not that it's running bad, I'm running on the Tuner's original tune, but I went from journal bearing 6262 turbo to a 6870 ball bearing turbo, bigger turbo and from my understanding the bb turbo spools up faster, I want to make sure that is not running to rich or to lean because of the new boost profile.

The attached file is from today

You don't have anything to worry about. Just run it.

You're running SD, if the turbo spools up faster then fuel will get supplied faster. That's the whole purpose of the tune. It doesn't care what name is on your turbo. All it cares about is matching fuel to amount of air being displaced in the manifold.

Monitor your AFR and drive it like you stole it.

 

[bloodnotch]

Great!!!! I kind of figured. I was just making sure by getting a second opinion your help is greatly appreciated, and thanks much for taking your time to help.

 

[bloodnotch]

If you don't mind, what is a good AFR reading?

 

[Noobz347]

14.7 ish at idle

I'm comfortable with 12.5-12.1 neighborhood in boost.

 

[bloodnotch]

Yea that's around what I see at idle on the gauge, sometimes it hits 11.8 on boost. Again thank you very much I greatly appreciate your help. Anytime you are in chicago let me know beers on me sir

 

[Noobz347]

No worries.


The cost is posting images and video of your car.

We'll then turn this into your progress thread. When/if you have issues, you can post it here and continue to add information to this thread about the car/issues.