CactusbobD

Can an supercharger be installed on a the 2.4 (E-85 ) 172 hp engine?
Would this void the warrantee? Do you think GM would install the super charge.

firemangeorge

Yes. Yes. and No.

American & Proud

Yes.

Yes.

NO.

Have a look at my Thread here> https://www.chevyhhr.net/forums/2-4l-performance-tech-14/injection-nice-but-35607/

Also look at lunchbox and hhrfreeks threads on their supercharged HHR's. Others have done it as well, but they did not post much info about it.

CactusbobD

I was reading about the boost from a supercharger and it could damage the engine. How much boost will 2.4 with stand ? I'm not drag racing this buggy just want to jazz it up a little.

swerv0428

The supercharger will jazz you up for sure. If your just looking for a little more id go with a tune.

SS fan

I have a tuned 2.4 it is much more drivable, but it's still a slug. If you are wanting to get from point A to point B quickly in an HHR I would suggest one of these.

silverstreet

Been researching this as I plan to do the ZZP stage 2 supercharger in February and I'm modding up my HHR for this install so my mechanic made some calls to a guy in Minneapolis who has souped up more then one ecotec. He was told there are no issues with the 2.4 and adding a supercharger. They can handle as much boost and HP as the 2.0 up to a limit, but that limit is more then you and I will ever get to.

Ignore everything I said, I just looked at your original post closer and see you have a flex 2.4. I'd be lying if I told you I knew now.