I do NOT wish to be arguementative here, but it does not matter what OTHER trans. GM makes . The initial statement and point was the current trans. will not take the extra HP.

I mean, hell GM makes other engines also, but they're not being used in the HHR, either.

Or am I missing something else??

 

well not to be argumentative...this was Lutz quote"Because GM has no automatic transmission capable of handling the torque of the higher-output version of this engine, HHRs equipped with the automatic had to be de-tuned to the lower horsepower" Lutz said.
They DO!

 

Ok I concede.

I see where I missed, "......any transmission....".

 

ok on another note who wants to be the first to try this:

This thread is intended as a summary and visual depiction of the Exhaust Depot Anti-Lag Mod ("EDAL"), also known as the "Charge Air Bypass (Solenoid) Mod", brought to us originally by Hector at Exhaust Depot (Thanks Hector!). I have some pictures of my own that I'm linking below (in the next post), and I'm also going to link in some of the previous descriptions and thread discussions, and see if we can get a moderator to pin this thread to the top of this board.

Note: My pics and MTS's pics are (theoretically) perma-hosted, but some of the images in some of the thread discussions are located on Putfile, which generally de-links images after a few months. If you find that the images are no longer available, ask around on the board; someone may have copies or can take new pictures for you. Also Brentil has added thumbnails to copies of the images that have been placed on THIS web site, and those thumbnails may be found here.

SUMMARY
The basic idea of this mod is that normally the ECU holds back the turbo until a certain amount of pressure has been relieved via the Charge Air Bypass Valve (Solenoid) (which relieves vacuum pressure from the turbine after the throttle is released). This mod is designed to stop that behavior, resulting in more rapid turbo response (less turbo lag).

From a practical perspective it's about getting the turbo to respond at a lower throttle setting. Put another way, the turbo may kick in half way down the pedal travel instead of 3/4th of the way down, depending on circumstances. So now you can use the turbo in situations where it might not have kicked in before.

Exhaust Depot has a more detailed technical description here (along with instructions):
http://www.exhaustdepot.net/edalmodlesslag.html

Two notes:
1. THIS MOD IS EXTREMELY QUICK. It will take you far longer to read this thread and all the instructions and digest the pictures than it will actually take you to do the mod. It's a five-minute job. Literally.
2. THIS MOD IS REVERSIBLE. Just remove the severed length of rubber tubing with the T-connector embedded in it (see instructions), then replace it with a new (short) length of rubber tubing, available from any auto supply store. You'll also need to reconnect the incoming tube to the original position in place of the stopper. (See post #2 and images below for a better idea of what this all means.)

INSTRUCTIONS
See second post below for a detailed description of the Exhaust Depot method.

CAVEATS
1. THIS MOD DOES NOT INCREASE THE POWER OF THE ENGINE!
2. This mod has not been reported to throw any ECU codes (computer error messages) at this time, nor has it been reported to cause the engine to go into "limp mode".
3. It also does not appear to cause any danger to the engine or any of its parts, based on extensive discussion, but as with any mod any risk is entirely your own!

PARTS & TOOLS:
You need a 3/16" vacuum T connector (see photo #6 below). These are reportedly available from any Wal-Mart, AutoZone or Pep Boys. (Anybody got a link for online purchase?)

You'll also need three plastic tie-offs of the kind typically used to tie off hoses and plastic components under the hood. (See pics 14-16 below.) (Anybody got a link for online purchase?)

Finally, you'll need a plastic 3/16" cap to cover the open port nozzle on the valve. (More info needed here, please!)

For tools you need some pliers (to pry off the hose) and a straight razor or box cutter (or similar). Any sharp knife will probably do, but a smaller-sized one is probably best.

 

Since that transmission is for a larger size car, and weighs "100" lbs more than the HHR auto, maybe thats what he means when he says : "Because GM has no automatic transmission capable of handling the torque of the higher-output version of this engine, HHRs equipped with the automatic had to be de-tuned to the lower horsepower, Lutz said."

Well, since Corvettes obviously have more power than the turbo 2.0, he had to mean "no auto that fits the HHR is capable of handling that power" Of course maybe GM just didn't want to invest that much money in a less expensive model. (less than the G6 and the other cars that use that trans.)

QUOTE=HHR_SS_Rocks;242601]the point Lutz made was that the 4 spd couldnt handle the POWER level generated, 4 t/c, 6cyl or 8 makes no difference really. They have a trans that can easily take the power level of the LNF (6spd)
SPECIFICATIONS
HYDRA-MATIC 6T70 (MH2) SIX-SPEED AUTOMATIC

Type:
six-speed transverse, electronically controlled, automatic overdrive transmission

Maximum engine horsepower:
315

Maximum engine torque:
280 lb-ft

Maximum gearbox torque:
380 lb-ft

Gear ratios:

First:
4.48

Second:
2.87

Third:
1.84

Fourth:
1.41

Fifth:
1.00

Sixth:
0.74

Reverse:
2.88

Maximum shift speed:
7000 rpm

5-position quadrant:
P, R, N, D, (M)

Case material:
die-cast aluminum

Shift pattern:
(2) three-way on/off solenoids

Shift quality:
five variable bleed solenoids

Torque converter clutch:
variable bleed solenoid

Converter size:
258 mm

Transmission weight (kg / lb):
102 / 273 (wet)

Fluid type:
DEXRONŽ VI

Fluid capacity (L / qt):
9.0 / 9.5

Assembly site:
Warren, Mich.

Additional features:
clutch-to-clutch operation (except 1-2); integrated transmission electro-hydraulic control module with driver shift control and performance algorithm shifting[/QUOTE]

 

they probably didnt want to invest the r+d into the 6spd FWD in the SS and BTW have you looked at a G6 they are around the same cost as a HHR SS and Remember the Auto adds $1000 to the price....

 

[QUOTE=HHR_SS_Rocks;242624]ok on another note who wants to be the first to try this:

This thread is intended as a summary and visual depiction of the Exhaust Depot Anti-Lag Mod ("EDAL"), also known as the "Charge Air Bypass (Solenoid) Mod", brought to us originally by Hector at Exhaust Depot (Thanks Hector!). I have some pictures of my own that I'm linking below (in the next post), and I'm also going to link in some of the previous descriptions and thread discussions, and see if we can get a moderator to pin this thread to the top of this board.

I had a GXP for over a year and did this mod. Over on the Solstice forum, there have been uneven results. Some swear by it and some say no difference. Your calibrated ass can fool you some times so I used a dashhawk
and collected acceleration data with and without this mod paying
particular attention to how quick the boost rises which this mod is supposed to help. My results were I saw no difference so I put it back to stock.
Your results may vary and like it was posted, it is very easy to do.

turbofreak