HHR SS Performance upgrade
Has anyone with an automatic HHR SS installed the GM performance upgrade kit? If so how did it affect driveability and gas mileage?
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I have the manual, but from what I have read is that you will gain gobs of power and bring the HP on par with the manuals.
Fuel mileage usually decreases not because the engine is less efficient, but because the driver can't keep their foot out of the throttle. Also, you will have this silly grin on your face for some time.... |
The Stage 1 is amazing. Totally different car with it installed.
General driveability is pretty much the same - no major difference until you stomp on it. Performance in the snow may be an issue (but probably not for you) but nothing that would make me regret the upgrade. I have a short commute so I'm not too concerned about mileage, but from what others have said you should get a marginal improvement. You will have to use premium fuel though, where with the stock engine premium is optional. |
Driveabilty is a fun factor X 10 over stock, along with 28 mpg, for me on a open road 22 mile work commute at mostly 60+ mph. It is worth the $.
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if only I had a dealer I trusted to do the upgrade - they couldn't even get the brake fix correct
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Get the upgrade. If you want to see a dyno run, check out what I put in the gallery here too (granted I have the Hahn turboback exhaust too). It's one of those mods that is a no-brainer. Factory backed and warrantied, great hp to dollar value, and did I mention it's warrantied???:bow: DO IT! :one:
Later Allex |
Originally Posted by jerSSey HHR
(Post 428420)
if only I had a dealer I trusted to do the upgrade - they couldn't even get the brake fix correct
(I think it was) 87Silver got his done there after he heard they had done a few. He said they did a great job so I drove the 175 miles there to get mine done. $200 as quoted, outa there by 10:30 AM and a good professional job. They soldered the connectors (as requested) instead of using the clips provided for no extra charge. Worth the drive. BTW - Orange County Choppers is about a mile up the street for a photoshoot and gifts :cool: |
Originally Posted by Hot Tamalie
(Post 428399)
Has anyone with an automatic HHR SS installed the GM performance upgrade kit? If so how did it affect driveability and gas mileage?
I comute about 40 miles around trip and get an average of 26 to 27 mpg if I keep it under 70 which is very hard to do. However at 60'ish I can get over 30mpg. Good Luck |
Originally Posted by Ratracer
(Post 428407)
Driveabilty is a fun factor X 10 over stock, along with 28 mpg, for me on a open road 22 mile work commute at mostly 60+ mph. It is worth the $.
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My gas mileage didn't get affected at all when you drive normal. I do both city and hwy driving to get to work.
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After having the kit installed, I was running about 27.5 hwy on the way to Florida (1200 mi trip from NY) with the SS loaded like this and had 4 adults in the car. I'm at about 29.5 hwy by myself and heavyfooting the pedal (just can't be avoided with a kit equipped HHR).
Mowgli's right. Barton Birks was great by me re the service dept (sales dept is another story; they're shuysers). Mine's been installed for about 8 mos and 7k mi and hasn't missed a beat as of yet. http://www.kodakgallery.com/imaging-...815703/jpeg/BG |
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