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

HHR SS Auto Trans questions

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Old 09-08-2012 | 10:15 AM
  #21  
breds2k's Avatar
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Joined: 12-20-2011
Posts: 120
From: Cape Cod, MA
Originally Posted by hyperv6
Word of advice.

If you are under 30 years old check to see how much insurance is before you buy. For some based on several factors a Turbo engine can lead to high insurance cost. Best to find out before you sign for the car.

Second even if you drive a stock automatic keep in mind the Turbo Upgrade is what needs to be added to put the Auto on even ground with the 5 speed. With out it you are down 45 HP and it is a different vehicle. So keep it in mind if you drive one.
****, I didnt even think about insurance being expensive! Thats what I come to a forum before I buy! Ive got 6 points on my license so this might be bad. Even though I only have 1 speeding ticket and 1 accident that are from 4-5 years ago the ticket was at 3am and over 100mph, it really screwed me and im only 23 so no drop insurance yet.

And im not sure what you mean by the auto needs a turbo upgrade to compete with the 5 speed, I was under the impression thats it all in the tuning, so if I do, airbox cover delete, catless dp, intercooler and run a 24psi tune it would net similar hp regardless of which transmission (the auto losing a pinch more through the drivetrain). Do I just need to add 3 Bar map sensors? thats all the GMPP is, sensors and base tune.
Old 09-20-2012 | 11:13 PM
  #22  
Evad's Avatar
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Joined: 09-19-2012
Posts: 70
From: North Glendale, AZ
Trans Cooler?

Other the upgrading the transmission fluid, are any of you guys with Hot Automatic cars running any additional transmission cooling or increasing the fluid quantity somehow?
Old 09-20-2012 | 11:16 PM
  #23  
SS fan's Avatar
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Joined: 10-09-2010
Posts: 14,420
From: Tacoma
Haven't heard of any, yet.
Old 09-21-2012 | 03:16 PM
  #24  
Tyler Harvey's Avatar
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Joined: 11-21-2010
Posts: 890
From: Canada
Originally Posted by SS fan
Haven't heard of any, yet.
Neither.
Old 09-23-2012 | 10:26 PM
  #25  
THE BATMAN's Avatar
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Joined: 06-26-2008
Posts: 4,152
From: N.W. Burbs Chicago
So the new to me 2010 has the GMTU that i thought was'nt working , Then tonite it spiked to 20 PSI in 3rd gear. What is an average you guys are seeing in boost whith the GMTU , I know weather ect. affects this , But what is the norm. ?

I maybe having a lot of ?'s for you auto guys , As i never payed a ton of attention to the info i now need with my auto , DOH !!!!
Old 09-23-2012 | 10:40 PM
  #26  
foolmoon_design's Avatar
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Joined: 05-13-2008
Posts: 2,075
From: Knoxville, TN
Chris, 18-21 with all stock parts. Then up from there.
Old 09-23-2012 | 10:43 PM
  #27  
Spozo's Avatar
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Joined: 08-11-2010
Posts: 98
From: House
Others might disagree but to see max boost in lower gears it helps to be almost stopped before you roll into it. Trans in I and comp mode on, helps too.
Old 09-24-2012 | 01:00 AM
  #28  
IgottaWoody's Avatar
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Joined: 01-13-2008
Posts: 4,708
From: Washington State, where it rains
If it doesnt seem to be boosting like it should, do the old pull the ECM fuse and let it reset..I find after puttering around for too long the brain picks up the habit..so it runs like you drive it, even when you want it to do more....ex-driver might now have ever "driven" it
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