Hahn Turbo Kit for 2.4L HHR
Senior Member
Joined: 04-30-2006
Posts: 9,149
From: Maryland Heights, MO
You'd think they'd step up and GIVE you the turbo kit for free considering they've had your car for almost half the year and showed it off with their decals at the Chicago Auto Show. As if they'd actually done anything to it at all.
Hope things work out for you, Mike. I'm sure with your people skills, you'll find something good fairly quickly.
Hope things work out for you, Mike. I'm sure with your people skills, you'll find something good fairly quickly.
Looks as though they make a system for the 2.4 but have not fitted one to the HHR as of yet 
!
http://www.turbosystem.com/ProjectVe...24L%20Page.htm
!http://www.turbosystem.com/ProjectVe...24L%20Page.htm
Senior Member
Joined: 04-30-2006
Posts: 9,149
From: Maryland Heights, MO
latest update
We have worked out a modified plan to go forward which works with my job loss, Bill Hahn's recent family issues, and each of our desires for the project to go forward. For his and my privacy in the finacial side, I've deleted to $#'s.
Stage II here we come, with other stages done in the future! 
Hi Mike,
Here’s a detailed breakdown of what your HHR will be capable of as we move forward.
Stage II: Current proposal
As we discussed, this will be the configuration delivered for the current cost of $XXXX. Our current offering for Cobalt uses a smaller turbocharger than I am using on your car (Garrett GT2860 on current Cobalt system, Mitsubishi Super 16G on yours) and puts out about 240-250 WHP. As such, we expect to make a bit more power with this newer Stage II configuration and its larger turbo. Using previous efforts on Cobalt as a guide, we can expect 250 to 275 wheel HP at 8-10 PSI. We can also experiment with a higher boost level of as much as 13 PSI, which is the effective upper limit for the stock engine without the mods described in Stage III below.
Stage III: Future iteration
Internal mods on the engine would be installed (our High Boost engine kit), allowing us to increase boost to as much as 20 PSI. Projected output would be in the 330-350 WHP range. Automatic transmission capability to hold this power would be carefully analyzed. Should slippage occur, the power level would be adjusted accordingly. You may wish to explore transmission upgrade options at that time.
Projected cost, for parts and labor: $XXXX
Stage IV: If all goes well in the Stage III iteration
A larger turbocharger compressor section would be fitted, as well as larger injectors. A more robust fuel delivery system (pump, lines, regulator) would also be required. Output is in the 400 WHP range. Costs to be explored at time of consideration; it’s not possible to fully project the cost of this Stage until Stage II results are fully understood.
Let me know if you have any more questions. I’ll be back in Illinois the week of June 22nd, and efforts on the car are already under way for Stage II.
Here’s a detailed breakdown of what your HHR will be capable of as we move forward.
Stage II: Current proposal
As we discussed, this will be the configuration delivered for the current cost of $XXXX. Our current offering for Cobalt uses a smaller turbocharger than I am using on your car (Garrett GT2860 on current Cobalt system, Mitsubishi Super 16G on yours) and puts out about 240-250 WHP. As such, we expect to make a bit more power with this newer Stage II configuration and its larger turbo. Using previous efforts on Cobalt as a guide, we can expect 250 to 275 wheel HP at 8-10 PSI. We can also experiment with a higher boost level of as much as 13 PSI, which is the effective upper limit for the stock engine without the mods described in Stage III below.
Stage III: Future iteration
Internal mods on the engine would be installed (our High Boost engine kit), allowing us to increase boost to as much as 20 PSI. Projected output would be in the 330-350 WHP range. Automatic transmission capability to hold this power would be carefully analyzed. Should slippage occur, the power level would be adjusted accordingly. You may wish to explore transmission upgrade options at that time.
Projected cost, for parts and labor: $XXXX
Stage IV: If all goes well in the Stage III iteration
A larger turbocharger compressor section would be fitted, as well as larger injectors. A more robust fuel delivery system (pump, lines, regulator) would also be required. Output is in the 400 WHP range. Costs to be explored at time of consideration; it’s not possible to fully project the cost of this Stage until Stage II results are fully understood.
Let me know if you have any more questions. I’ll be back in Illinois the week of June 22nd, and efforts on the car are already under way for Stage II.
Senior Member
Joined: 04-30-2006
Posts: 9,149
From: Maryland Heights, MO
I'm hoping to have mt HHR home by the 4th of July. I haven't been told anything to hope for that date, just hoping!
Senior Member
Joined: 06-29-2008
Posts: 839
From: Crystal Lake
Although you have a better chance of getting the car back then winning the lottery.Job loss sucks, Economy doesn't make it any better. Brother in law who is in the trade's was told he could be off for the rest of the year. Luckily he's union so he will get alittle more then the rest of Us.
I lost mine in April, I was able to find something in another division. I 100% hate it, don't even wanna get up in the morning and deal with the B.S. I just have to remind myself i have a Wedding and a house to pay for. Untill the economy gets better i'll be there.
Banned
Joined: 10-24-2006
Posts: 1,761
From: The Show-Me State
I may have to stop by if I go through STL for a wedding down south in a few weeks, just to see how they stuffed an intercooler behind that trick front bumper.