2009 ZR1 tune, a quick look.

[GMPX]

Hi All,

Just about done mapping the new 2009 ZR1, see what you think about the important tables.....

VE Table:


High Octane Spark Table:


Power Enrichment:


I'm just going to wait for the prices of them to drop to about $35K and I'll buy one .
Of interest, these do use an E67 ECM and it looks like they have a 6600 RPM limiter.
It will be interesting to see how different the 2009 CTS-V tune is going to be.

Cheers,
Ross

[mr.prick]

did you get to drive it?

[GMPX]

Ah no, but some lucky person did.

[GMPX]

Well, thinking about it, I would be too nervous to drive a car worth that much and actually give it some stick.

Cheers,
Ross

[mr.prick]

Ah no, but some lucky person did.

bummer
LOL
i forgot to ask if it was left-hand drive.

[nonnieselman]

Those are some funny lookin tables..
Especially the PE!
And i thought my VE and Spark table needed some help...

Nice find!

[Bruce Melton]

I thought it was to be E-38 and the MAF table was :


There were 11 of them (GM Exec ZR1s) at the Corvette Museum Track day @ Road America the other day. Impressive but not out of reach of a prepared C5-C6 LS7. Note their quick reply to the BBV Jake C6R insignia.

[GMPX]

I thought it was to be E-38 and the MAF table was :

They have to use the E67 because it is able to control the Supercharger/Intercooler functions and has provision for the 2nd IAT sensor, the E38 doesn't have enough inputs/outputs, yet has all the code in the ECM to do so!, but I guess if there is no spare pins then there is nothing that can be done but to swap ECM's.
It probably made sense to swap it to the E67 anyway given the CTS-V will be sharing (more or less) the same motor and it's always run the E67.

I also agree with what you are saying on the prepared Corvette comparison, I'm sure there is a number of cars (and trucks!) owned by people on this forum who will out run a new ZR1. I think it's more about the prestige of owning one.

The CTS-V's look nice, but what size wheels are they?, they look at most to be 18".

Cheers,
Ross

[Scoota]

What were they thinking when they did the PE's. There must be some logic behind it.

Cheers Scotty.

[Bruce Melton]

They have to use the E67 because it is able to control the Supercharger/Intercooler functions and has provision for the 2nd IAT sensor, the E38 doesn't have enough inputs/outputs, yet has all the code in the ECM to do so!, but I guess if there is no spare pins then there is nothing that can be done but to swap ECM's.
It probably made sense to swap it to the E67 anyway given the CTS-V will be sharing (more or less) the same motor and it's always run the E67.

I also agree with what you are saying on the prepared Corvette comparison, I'm sure there is a number of cars (and trucks!) owned by people on this forum who will out run a new ZR1. I think it's more about the prestige of owning one.

The CTS-V's look nice, but what size wheels are they?, they look at most
to be 18".

Cheers,
Ross

Overview
Body style / driveline: rear-drive four-door high-performance luxury sedan
Construction: unitized welded steel body with direct-mounted front cradle and rubber-isolated, multilink independent rear suspension assembly body lowered 15mm overall as compared to standard CTS
Engine
Type: 6.2L supercharged V-8 (LSA)
Bore & stroke (in): 4.06 x 3.62
Block material: cast aluminum
Cylinder head material: cast aluminum
Valvetrain: overhead valve, 2 valves per cylinder
Supercharger: Gen. 6 R19 with single brick intercooler; 1.9L displacement w/4-lobe rotor design
Compression ratio: 9.0:1
Horsepower (hp @ rpm): 550 @ 6200 (est)
Torque (lb-ft @ rpm): 550 @ 6200 (est)
Additional features: pan-mounted oil cooler; cast pistons; high-flow cylinder heads; block-mounted piston squirters; steel crankshaft w/ 8-bolt flange; close-mounted converters; acoustic engine cover; E67 engine controller
Transmissions
Type: Tremec TR6060 six-speed manual; fully synchronized with two overdrive gears
Gear ratios (:1)
First: 2.66
Second: 1.78
Third: 1.30
Fourth: 1.00
Fifth: 0.80 (Overdriven)
Sixth: 0.63 (Overdriven)
Reverse: 2.90
Final Drive Ratio: 3.73
Type Optional Hydra-Matic 6L90 six-speed electronically controlled automatic overdrive with torque converter clutch
Gear ratios (:1)
First: 4.02
Second: 2.36
Third: 1.53
Fourth: 1.15
Fifth: 0.85 (Overdriven)
Sixth: 0.67 (Overdriven)
Reverse: 3.06
Final Drive Ratio: 3.23
Chassis & Suspension
Front suspension: independent SLA; 29 mm hollow stabilizer bar; elastomeric handling and ride bushings; 65-N/mm spring rate; Magnetic Ride Control with electro-magnetically controlled shocks
Rear suspension: independent multilink; 25 mm hollow stabilizer bar; elastomeric trailing arm bushing; 90-N/mm spring rate; Magnetic Ride Control with electromagnetically controlled shocks
Wheels: 19 x 9-inch; forged alloy, 5-lug (front)
19 x 9.5-inch, forged alloy, 5-lug (rear)
Tires: 255/40R19 Michelin PS2; summer Y-rated (front) 285/35R19 Michelin PS2; summer Y-rated (rear)
Brakes: four-wheel disc with four-channel ABS, hydraulic brake assist and dynamic rear brake proportioning
Front rotors: vented; co-cast; 14.57-in x 1.34-in
Rear rotors: vented; 14.37-in X 1.10-in
Front calipers: aluminum; six-piston
Rear calipers: aluminum; four-piston
Final Drive Ratio: 3.73
Additional features: standard: StabiliTrak (four-channel, four mode); traction control; engine drag control optional: Performance Traction Management
Dimensions
Exterior
Wheelbase (in): 113.4
Overall length (in): 191.6
Overall width (in): 72.5
Overall height (in): 58.0
Track (in): front: 61.8 rear: 62.0
Curb weight (lb): manual: 4200 (est) automatic: 4300 (est)
Interior
Headroom (in): front: 38.8 rear: 37.2
Leg room (in): front: 42.4 rear: 35.9
Shoulder room (in): front: 56.7 rear: 57.4
Hip room (in): front: 55.1 rear: 54.1
Note: Information shown is current at time of publication. Please visit our GM Media web site at http://media.gm.com for updates.