HHR SS Topics and information on the 2008-2010 Chevy HHR SS Turbocharged models.

low boost

Old Jul 21, 2008 | 11:08 AM
  #11  
JJ's BLACK SS's Avatar
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it will hit 15 first and second and hit 14 in third
Old Jul 21, 2008 | 11:44 AM
  #12  
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I think I'm going to try the wastegate rod ajustment after work. Will let you know the results.
Old Jul 21, 2008 | 05:35 PM
  #13  
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Originally Posted by kodos78
Make sure that the car is in 3rd gear when you check how much boost it makes. I know my 5speed limits boost in first and second gear. I'm sure the A4 is similar. And no, you do not have an LSD.
WOW. that is exactly what it did today when I checked it out again. Is that a computer limitation? I figured it was just an automatic thing.
Old Jul 21, 2008 | 09:26 PM
  #14  
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Ok, I shortened the rod all the way and test drove it at work , and home (25 miles). In 1st right before hittin 2nd I'm pushing the needle to 19 pounds. This thing feels like my buddy's 08 SS stick. Holy crap. Major difference. Not too worried about warrantee. I'm the only guy that will ever touch my car. So when the turbo, trans or head pops, I fix. Thank you GM. If you are good with your hands (using them and not seeing what they are doing) you can make the adjustment from the top. That is the best and easiest way to do it. I tried from the top and on a lift from the bottom.
Old Jul 21, 2008 | 10:15 PM
  #15  
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Originally Posted by turbotech
Ok, I shortened the rod all the way and test drove it at work , and home (25 miles). In 1st right before hittin 2nd I'm pushing the needle to 19 pounds. This thing feels like my buddy's 08 SS stick. Holy crap. Major difference. Not too worried about warrantee. I'm the only guy that will ever touch my car. So when the turbo, trans or head pops, I fix. Thank you GM. If you are good with your hands (using them and not seeing what they are doing) you can make the adjustment from the top. That is the best and easiest way to do it. I tried from the top and on a lift from the bottom.
Enjoy the new power while you can because depending on how many miles you drive daily you probably have about 2-4 weeks of enjoyment before the "Nanny" ECU realizes what you have done and relearns the settings back to stock. This has been covered in great length on the Solstice and Sky forums.
Old Jul 22, 2008 | 10:32 AM
  #16  
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I believe the computer limits boost in first and second to limit torque steer and allow you to get off the line without excessive wheel hop and spin. Most FWD turbo cars on the market do this now. My SRT-4 (Neon) didn't and it could rip the steering wheel out of your hands!

In fact, I think the Mazdaspeed 3 detects both steering angle and gear to limit boost.

Originally Posted by HHR 'Black Death'
WOW. that is exactly what it did today when I checked it out again. Is that a computer limitation? I figured it was just an automatic thing.
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