08-13-2013, 09:07 PM #1
Underboosting JB4 Map 7, bad wastegate solenoid?
Map 7, 93+meth, Open Source BMS flash, G5 ISO 24c. As you can see, I am underboosting in 3rd gear when I normally never had such issues. I visually checked the vacuum lines very thoroughly, no cracks or tears. does this seem like a bad wastegate solenoid? Open
edit - I am running an 80/20 mix on the underboosting logs, vs 90/10 on the log from a few months ago.
This was a few months ago and had no issues. Boost pegged target immediately matching target. Cobb AP BMS flash.
Now, see below. PWM is pretty much tapped out and I am struggling to hit 15 psi at 6000 RPM. Open Source BMS flash.
08-13-2013, 09:10 PM #2Supporting Vendor
- Join Date
- Nov 2009
- Simi Valley, CA
- Rep Points
- 655 Post(s)
- Rep Power
Your before logs look to be targeting a lot less boost. Map 7 is a pretty beefy target!Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, N63s, S55s, and S63s!
It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please see http://www.burgertuning.com/emissions_info.html for more information on legal requirements related to use of BMS parts.
08-13-2013, 09:15 PM #3
I'd rather know it's a limitation than going on a rip and replace mission. Although I may smoke test tomorrow for peace of mind. Easiest way to know.