C6 RPO Codes

[Rick Daniel]

AAB Memory Package
AG2 Seat adjuster, power, front passenger 6-way
AJ7 Air bags, frontal and side impact, driver and front passenger
AK5 Air bags, dual-stage, frontal
AQ9 Seats, front Sport bucket
AR9 Seats, front bucket
C2L Roof Package
CC3 Roof panel, removable
CF7 Roof panel, removable, 1-piece, body-color
CJ2 Air conditioning, dual-zone, automatic
CM7 Convertible top, power folding
D42 Luggage shade
DD0 Mirrors, inside rearview with compass and driver outside rearview
DL8 Mirrors, outside rearview, power, heated, body-color
F55 Magnetic Selective Ride Control
FE1 Suspension, 4-wheel independent
FE9 Emissions, Federal requirements
G90 Axle, 3.15 performance ratio
GU2 Axle, 2.73 ratio
GU6 Axle, 3.42 ratio
K11 Air filtration, includes pollen filter
KA1 Seats, heated
LS2 Engine, 6.0L LS2 V8 SFI
MN6 Transmission, 6-speed manual
MX0 Transmission, 4-speed automatic
N37 Steering column, power telescopic
NB8 Emissions override, California, Massachusetts, New York or Vermont
NC7 Emissions override, Federal
NE1 Emissions, Maine, Massachusetts, New York or Vermont state requirements
NK4 Steering wheel, leather-wrapped
QG6 Wheels, 5-spoke aluminum
QG7 Wheels, polished
R8C Corvette Museum Delivery
U2K Sound system feature, XM Satellite Radio
U3U Sound system with Navigation, ETR AM/FM stereo with CD player and MP3 playback
U52 Instrumentation, analog
UE1 OnStar
UG1 Homelink transmitter,
US8 Sound system, ETR AM/FM stereo with CD player and MP3 playback
US9 Sound system, ETR AM/FM stereo with 6-disc
UV6 Head-Up Display
VK3 License plate bracket, front
YF5 Emissions, California state requirements
Z51 Performance Handling Package

 

[kenwa]

I thought the automatic was going to be a 5-speed.

 

[*89x2*]

LS2 Engine, 6.0L LS2 V8 SFI

are they all this displacement?? No more 5.7L:confused

 

[UB2 SLOW]

are they all this displacement?? No more 5.7L

I thought the 5.7 was standard and the 6.0 was an option? Oh well, I still want one.

 

[Zippy]

Wow! Great info, thanks Rick!

I'm making a list, checking it twice!

Btw, 6.0 liters= 366.138 CID! Which means over 2 cubic inches more per cylinder!

Can't wait to get mine!

Zippy

 

[Hib Halverson]

Six liters was always going to be the base 05 engine.

Corvette was never going to get the five-speed auto. That's a Cadillac exclusive right now because its smaller engine, less torque, more mass and more affluent demographics require it.

I believe the five-speed is a 5L50E and, thus, not of sufficient torque capacity for a six-liter. Even then, the 4L60E or 4L65E (as it may be) will be torque-managed, big-time to live with the six-liter. My guess is, with the six-point-ohs fat torque curve, a five-speed auto is unnecessary, anyway. It would just put more cost and complexity into the car.

My guess is, the quick car will be the 6L/6M cars as long as you can launch and not get the antipowerhop algorithyms that might be in the PCM.

Basically, LS2 is the two-valve, all-aluminum version of the big Gen 4 with the cam phaser, but without displacement on demand.

 

[JBsC5]

4speed automatic might limit top speed to 180 mph!

A 3.73 rear gear axle would have matched up well with a six speed automatic..

Thats what the Vette should have gotten but what the hell..its got a lot of torque to hide what the cars missing and no one will ever miss it..

Cept me!

 

[Runge_Kutta]

JBsC5 and Rick Daniel,

You both like to lift scoops from other threads. That's
fine but you guys really ought to give the originators some credit.

 

[Runge_Kutta]

Hib,

Why didn't we get the X15R for the debut? Did
money get too tight to get the 6-speed AT into
production in time? Is that one of the "new"
items for the Coupe an Convertible in MY2006?

What's this 472 hp engine that Zippy saw??

?????

 

[LongTimer]

?

What's this 472 hp engine that Zippy saw??

?????

Zippy told me the engine he saw was clearly not a Gen IV. He said that the visit to this area was scheduled days in advance and any "secrets" were not visible.

 

[Buster1]

Thanks Rick, great info. What is the ETR stereo? Is that the XM or just a normal designation.

 

[Runge_Kutta]

LongTimer,

At the time Zippy saw the 472hp engine, how many people (Zippy?)
knew what a Gen IV looked like or how it would differ from Gen III??
The "truck" version was just announced this month and the "car"
version has yet to be announced. For him to say that "the engine
he saw was clearly not a Gen IV" fails a very basic logic test.
To say that a normal LS6 was putting out that kind of hp makes
no sense either.

I'm just looking for stories that make some sense. This one
is completely internally inconsistent.

By the way, this is just like the "delayed frame" debate. People
make plausible statements and then backtrack with these implausible
stories. The C6 frame is either steel or aluminum and there is virtually
no way they made a steel frame for a year or two and an aluminum one
for the later years. The frames are different sizes and require different
tooling. If they planned on aluminum and the aluminum is on hold then the
whole program is in deep do-do.

 

[danl72]

Now I heard that GM might put in a 6 speed auto. That might be interesting.

 

[Hib Halverson]

Hib,

Why didn't we get the X15R for the debut? Did
money get too tight to get the 6-speed AT into
production in time? Is that one of the "new"
items for the Coupe an Convertible in MY2006?

What's this 472 hp engine that Zippy saw??

?????

I don't know what a "X15R" is.

There is no six-speed automatic transmission made by GM right now. There is a five-speed auto that is used in the Cadillac XLR. My guess is it will remain a Cadillac exclusive because 1) it's not strong enough for use in a Corvette and 2) the Corvette's greater torque output really doesn't require a five-speed auto.

I don't know anything about the engine Zippy saw because I wasn't there.

If you want to know more about what might come in 2006, read my column in next month's Hemmings Muscle Machines. It may be on sale at places like Border's and Barnes and Noble this week or next.

 

[Runge_Kutta]

Hib,

Thanks! I'll try to find the article.

The X15R is one of the 4 upcoming GM 6-speed ATs.

http://media.gm.com/division/2004_prodinfo/tech_displays/powertrain/rwd_6speed.pdf

Also,

http://forums.corvetteforum.com/zerothread?id=699595

 

[Hib Halverson]

Re: Z51's

Hib, will that include what to expect with the Z51 option?

No. The story is not that specific.

Or is that a no change from '04-'05?

Thanks,
D

My guess is 05 Z51 will be different than 04, but I cannot speculate as to the specifics of those differences. My second guess is that 05 and 06 Z51 will be quite similar.

Hib,

The X15R is one of the 4 upcoming GM 6-speed ATs.
id=699595[/url]

I appreciate you posting those URLs. Actually, I was unaware of Hydramatic's A6 developments. My guess is the first use of such will be trucks as part of the never-ending search for better mileage from heavier (than Vettes) vehicles. Will X15R be used in a Corvette? Hard to say. Looking at some of the images on that site, it appears the Z15R is bigger and certainly heavier than a 4L60. Is it too big and heavy? Maybe---maybe not. Does a Corvette, a vehicle considerably lighter than a truck, need a A6? Maybe---maybe not. It will be interesting to see if the X15R (6L65E?) comes to market in a Vette.

 

[Runge_Kutta]

From ( http://www.nap.edu/html/cafe/ch3.pdf [pages 3-12 and 3-13])

"Five-Speed Automatic Transmission: The use of a five-speed automatic transmission permits
the engine to operate in its most efficient range more of the time than a 4-speed. A fuel
consumption improvement of 2 to 3 percent is possible, at constant vehicle performance,
compared to a 4-speed automatic."

"Six-Speed Automatic Transmission: Advanced six-speed automatic transmissions can
approach the performance of CVT transmissions, without limitations in the ability to transmit
torque. An additional improvement of 1 to 2 percent in fuel consumption is possible,
compared to a 5-speed automatic. Based upon their higher cost and control complexity, such
transmissions will probably see only limited introduction in high-end luxury or performance
vehicles."

From GM patent 6,648,793 :

"Six speed transmissions offer several advantages over four and five speed transmissions,
including improved vehicle acceleration and improved fuel economy."

"Seven- and eight-speed transmissions provide further improvements in acceleration and
fuel economy over six-speed transmissions. However, like the six-speed transmissions
discussed above, the development of seven- and eight-speed transmissions has been
precluded because of complexity, size and cost."

From ( http://media.gm.com/division/2004_prodinfo/tech_displays/powertrain/rwd_6speed.pdf )

"GM six-speed ATs offer 4%-7% performance improvement over current GM 4-speed ATs."
"GM six-speed ATs offer 1%-4% mileage improvement over current GM 4-speed ATs."
"Benchmark unit cost."

I don't know about the weights but the new ZF and Mercedes
6- and 7-speed ATs have not gained much weight.

 

[Rick Daniel]

Re: Z51's

Hib, will that include what to expect with the Z51 option? Or is that a no change from '04-'05?

Thanks,

D

05 Z51 Pkg.

Performance Handling Package, performance-oriented package for the Gymkhana/Autocross enthusiast, includes power steering, engine oil and transmission coolers, stiffer springs and stabilizer bars, specific shock absorbers, larger brakes with cross-drilled rotors, specific tires and performance gearing, Z51-specific, 6-speed manual transmission or performance axle ratio with automatic transmission

 

[blackc5]

I see the 7 l motor, but what happened to the promised 5 speed auto.

 

[blackc5]

Never mind! I did not read the other replies before I asked the question.