2400 rpm @ 80 mph, what gears [auto] ?

2400 seems high? sounds fine to me.

4.10's will put you at 3000 at 80mph. You'll love it.

mikeallen said:

What rear end ratio, RPM seems kind of high ??

Click to expand...

this may help if your looking for the stock ratio

http://www.modernengineuity.com/specs/2005-mustang.html

Manual GT cars have 3.55 and all auto and v-6 cars have 3.31.

gears

anthony05gt said:

Manual GT cars have 3.55 and all auto and v-6 cars have 3.31.

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What? You mean 3.27's right. I don't know about all the 5-speed having 3.55's either.

03greygt said:

What? You mean 3.27's right. I don't know about all the 5-speed having 3.55's either.

Click to expand...

no, 3.31 is the correct ratio.

03greygt said:

What? You mean 3.27's right. I don't know about all the 5-speed having 3.55's either.

Click to expand...

I mean what I typed. All automatic mustangs have 3.31's, only the GT manual trans cars have 3.55's. The manual V-6 cars have 3.31's.

3.27's are stock pre 05

Specifications

Body

GT Unitized welded steel body, aluminum hood
V-6 Unitized welded steel body, aluminum hood

Powertrain and Chassis

Engine Type
GT 4.6L 90-degree V8; Aluminum block and heads
V-6 4.0L 60-degree V6; Iron block, aluminum head

Bore x stroke
GT 3.55 x 3.54/90.2 x 90.0 mm
V-6 3.95 x 3.32/100.4 x 84.4 mm


Displacement
GT 281 cu in / 4,606 cc
V-6 245 cu in / 4,009 cc

Compression Ratio
GT 9.8:1
V-6 9.7:1

Horsepower
GT 300 @ 5,750 rpm
V-6 210 @ 5,250 rpm

Torque
GT 320 lb-ft @ 4,500 rpm
V-6 240 lb-ft @ 3,500 rpm

Redline
GT 6,250 rpm
V-6 6,100 rpm

Throttle body
GT 55 mm dual-bore electronic
V-6 65 mm single-bore electronic

Cylinder head gasket
GT Multi-layer steel
V-6 Multi-layer steel

Valvetrain
GT SOHC, 3 valves per cylinder, variable camshaft timing
V-6 SOHC, 2 valves per cylinder

Valve diameter
GT Intake: 33.8 mm
Exhaust: 37.5 mm
V-6 Intake: 46.0 mm
Exhaust: 39.0mm

Pistons
GT Hypereutectic aluminum
V-6 Hypereutectic aluminum

Connecting rods
GT Cracked powdered metal with floating wristpins
V-6 Forged steel

Ignition
GT Coil-on-plug, high-thread-insert spark plugs
V-6 Distributorless with coil pack

Knock detection
GT Dual knock sensors
V-6 Single knock sensor

Intake
GT Composite shell-welded single runner, charge motion control valves
V-6 Composite shell-welded with internal runner pack

Accessory drive
GT One-way clutch alternator
V-6 Asymmetric belt tensioner

Oil pump
GT High-flow gerotor
V-6 Gerotor

Recommended fuel
GT 87 octane
V-6 87 octane

Fuel injection
GT Electronic returnless sequential
V-6 Electronic returnless sequential

Oil capacity
GT 6.0 qts
V-6 5.0 qts

Fuel capacity
GT 16.0 gal
V-6 16.0 gal

Fuel economy (city/hwy)
GT Manual: 17/25 mpg / Automatic: 18/23 mpg
V-6 Manual: 19/28 mpg / Automatic: 19/25 mpg

Drivetrain
Layout
GT Real-wheel-drive
V-6 Rear-wheel-drive
Driveshaft
GT Two-piece aluminum
V-6 Slip-in-tube single-piece
Rear axle
GT 8.8-in
V-6 7.5-in

Transmission
Standard
GT 5-speed manual
(Tremec 3650)
V-6 5-speed manual
(Tremec T-5)
Gear Ratios:
GT
(Treme 3650) V-6
(Tremec T-5)
I 3.34:1 3.75:1
II 2.00:1 2.19:1
III 1.32:1 1.41.1
IV 1.00:1 1.00:1
V 0.67:1 0.72:1
Reverse 3.38:1 3:15:1
Final Drive 3.55:1 3.31:1

Optional
GT
5-speed automatic (5R55S) V-6
5-speed automatic (5R55S)
I 3.25:1 3.25:1
II 2.44:1 2.44:1
III 1.55:1 1.55.1
IV 1.00:1 1.00:1
V 0.75:1 0.75.1
Reverse 3.07:1 3:07:1
Final Drive 3.31:1 3.31:1

Suspension

Front
GT Reverse-L independent MacPherson strut, 34 mm tubular stabilizer bar
V-6 Reverse-L independent MacPherson strut,
28.6 mm tubular stabilizer bar
Rear
GT Three-link solid axle with coil springs, Panhard rod,
20 mm solid stabilizer bar
V-6 Three-link solid axle with coil springs,
Panhard rod

Steering

Type
GT Rack-and-pinion with power assist
V-6 Rack-and-pinion with power assist

Ratio
GT 15.7:1
V-6 15.7:1

Turning circle
GT 38.0 ft
V-6 36.0 ft

Brakes

Front
GT 316 (12.4 in) x 30 mm vented disc, twin-piston 43 mm floating aluminum calipers
V-6 293 (11.4 in) x 30 mm vented disc, twin-piston 43 mm floating aluminum calipers

Rear
GT 300 (11.8 in) x 19 mm vented disc, single piston 43 mm floating iron calipers
V-6 300 (11.8 in) x 19 mm vented disc, single piston 43 mm floating iron calipers

Tires and Wheels
GT P235/55ZR17 98W
17 x 8.0-inch wheels
V-6 P215/65R16 96T
16 x 7.0-inch wheels

Dimensions and Capacities
(in inches unless otherwise noted)
Exterior

Wheelbase
GT 107.1
V-6 107.1

Overall length
GT 188.0
V-6 187.6

Overall width
GT 73.9
V-6 73.9

Overall height
GT 55.4
V-6 55.4

Tread width
GT Front: 62.3 / Rear: 62.5
V-6 Front: 62.3 / Rear: 62.5

Interior

Front headroom
GT 38.6
V-6 38.6

Front legroom
GT 42.7
V-6 42.7

Front shoulder room
GT 55.4
V-6 55.4

Front hip room
GT 53.6
V-6 53.6

Rear headroom
GT 34.7
V-6 34.7

Rear legroom
GT 30.3
V-6 30.3

Rear shoulder room
GT 53.4
V-6 53.4

Rear hip room
GT 46.8
V-6 46.8

EPA interior volume
GT 97.9 cu ft
V-6 97.9 cu ft

Truck volume
GT 13.1 cu ft
V-6 13.1 cu ft

Wieghts
Base curb weight
Manual
GT 3,483 lbs
V-6 3,351 lbs
Automatic
GT 3,518 lbs
V-6 3,387 lbs
Weight distribution
GT 54/46 (f/r)
V-6 55/45 (f/r)
Max towing capacity, properly equipped (lbs)
GT 1000 lbs
V-6 1000 lbs