Send an SS stick up here in NE OH, and a place and time, and no cops and a good stopwatch/video (I do HDV) and we'll find out.

If the Stick guy has a clue how to do it, he'll Pwn me. If not, he's toast.


Maybe if I make it to the RRHOF July 13, we can werkitout!

 

I would love to see the video of that race, and I agree 100% with you on the stick guy not being off by a split second or he's toasted by the automatic.....

 

The reason I said that is because a freind I haven't seen in a couple years and I , back in '85 had Fieros. I had a 2.?L auto and he ad a 6.?v6 stick.. I pwnd hissass every time where he wouldn't even try any more.

I don't have the black fiero anymore, but I think he still has his rotting in GA somewhere.


Anyhow, if hillsdale can arrange it, and I can be there, I'll take on a stick at the RRHOF on July 13.

No promises, but I like it, and I work on it.

 

The power wasn't tuned down because of the A/T not being able to handle the 260. It is just GM trying to baby their possible warranty expenses. The 4 speed auto in the HHR SS is the same as your old Cobalt 2.4L...and if you have ever looked into Hahn's turbo kit for the 2.4L ECOTEC, you would know that the tranny can handle more than 260...especially when all 260 is at the wheels! IIRC, over 300whp

 

This is incorrect. According to GM Powertrain the 4T45 MN5 in the HHR SS is rated to a maximum engine torque of 221 lb-ft (300 Nm). Here's the specs on the transmission from GM Powertrain:

 

i have one each sitting in my driveway. the stick kills the auto.

 

Right...just like how they rated the LSJ to a maximum HP of 300 at the crank for the valvetrain...yet there are people at almost 380whp on stock internals. You're going to believe everything GM puts out? You have to put it to the limits to find out.

The Hahn kit alone puts out 201 lb/ft at the wheels. Take in drivetrain loss and you're above 220.

Also, you might want to re-read what you posted. This thread is about the TRANSMISSION being the reason the torque was lowered on the automatic HHR SS....so this goes by the gearbox.

 

The Cobalt SS 2.4 was actually a 5 speed.

So from what some of you are saying the 4 speed can easily hold the torque? Then why did chevy reduce the power for the auto?

 

You obviously don't understand transmissions or GEARBOXES. Transmissions have two specific maximum torque values. One at the input shaft or ENGINE and one at the output shaft of the GEARBOX that connects to the final drive. The transmission reduces speed and increases torque through multiplication.

That being said, the two specifications GM publishes for the 4T45 MN5 are

1. Maximum engine torque or maximum torque at the transmission input shaft (engine crankshaft). This is the recommended maximum torque rating applied to the transmission input shaft.

2. Maximum gearbox torque or the maximum multiplied final torque value at the transmission output shaft (final drive). This is the recommended maximum MULTIPLIED torque rating the transmission internals and output shaft can withstand.

So, you should better understand what the specifications mean and how they are applied before making erroneous statements. Can this transmission handle more power? Probably, but who knows how much and under what conditions until you break it. The published specifications are manufacturer recommendations based on product and material design constraints. The torque output on the A4 was reduced to 222 lb/ft because that is the maximum recommended engine torque at the input shaft for this transmission.

 

The torque output of the A4 LNF SS is 222 lb/ft which is the recommended maximum engine torque value of the transmission. Start adding power and drive the piss out it; I'm sure you'll find out what the limit is.