Here's what you should be watching.

 

Thanks a lot mate

 

This I was watching also before installing GM boost control solenoid

I run TBEC at 0 at this moment

Seems that the car is running better with TBEC at 0

Turbo control load offset is 100

My Boost Cut Load is 255 255 255 255 250 245 240 235 235

Should I put it at 319 all way down?

 

No, you should keep a safety margin. Your current values are just fine.

 

+1

If you need some help, PM me

 

I presume you are talking about the negative side of the boost error, ie, the postive WGDC that is zeroed. Do not zero it. If postive WGDC is zeroed, and under certain driving conditions, your boost will get pulled down and will never recover.

For example, you are driving in 5th gear at 50-60 mph and you down shift and hammer the throttle. There will be a 20% load spike (boost error) that is accompanied by a 13% openning of the WGDC (stock TBEC tabel). Your boost will drop. Right after that you will get a ~15-17% negative boost error. If you have zero WGDC correction in the cells across from the 15-17% boost error, your boost will stay low and never come back after you downshifted. You must have positive WGDC numbers in the cells across from the neagtive boost error cells. That will help your boost recover after you downshifted from a higher gear.

Zeroeoing the upward WGDC correction does not work under all driving conditions.

 

Right,

I experience this weekend this issue

So I think I will go back with TBEC setup

I will log some puls into 3th and 4th gear with TBEC 0 and I will check the logs.

If I have -50 for example I must change the same into WGDC table.....right?

My BDEL is 159-159-159-159-159-159-159-159-159-159-155-150-140-135-125-115

WGDC is 100-100-100-100-95-88.5-78.5-69-69-71.5-72.5-76-81-87-92-94.5

Boost cut load is 255-255-255-255-250-245-240-235-235

Some tuners are using 300 in BCL table all way down.......

The formula target load = boost offset + boost target engine load table is still valid?

Thanks

 

UPDATED the second post on how to tune boost.

 

wow. solenoid prices jumped way up since the OP, didn't they? haha

 

Not that much; $45 for the solenoid, and you can probably find the pigtail for quite a bit cheaper than GMPartsDirect wants ($17) at a local Autozone, Pep Boys, Murray's, etc. Evo_Kid's original post said around $50, so it's not that far off the mark.

 

Does the same vacuum line diagram on the first page apply to the Prodrive/Tactrix 3 port? It's the same "plug-n-tune" one as the Gruppe-S as well. On my EBC swtup right now it only uses two ports. One to the wastegate, and the other to the outlet pipe off the compressor. Where does the intake vac line go to?

Here's a pic. https://www.evolutionm.net/forums/ve...d-harness.html

 

Bump!

 

You can get GM 3 port solenoids and the weather pack pigtail from Ballenger Motorsports for like $55 shipped. The connector/pigtail is like $6. Shipping is reasonable. They ALSO have the GM AIT sensors and connector/pigtail too! So technically you can get your MAT stuff covered, a GM 3 port...

If you have a MAP sensor, you can do direct boost control and possibly SD if you wanted?

 

My setup

GM 3 Port with PnP Mod



Omni 4 bar PnP MAP Sensor

 

im doing this install right now, and just had a quick question... does it matter which wire the resistor is soldered into, and does it matter which wires off the factory harness you splice the pigtail into? is the resistor necessary, and why?

im a little electronically challenged. so thanks for the write up, and the help!