Boxter or Z4?

Quote from Error 404:



Thanks my friend. I figure I am now at the halfway point:)

Got my teeth cleaned an hour ago. Dentist said I was good for another 50+. Just gotta floss. Like we all do!

Peace, and good flossing to all,
:)RS
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gee sys your a clown :-(
 
Quote from opm8:



Nice. Is that on drag radials or streets?

--opm8
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That would be on 17" BFG drag radials. It'll probably do high 11s on street tires. Never tried it...kinda scary off the line on street tires :eek:

-FastTrader :)
 
Quote from Fast_Trader:


That would be on 17" BFG drag radials. It'll probably do high 11s on street tires. Never tried it...kinda scary off the line on street tires :eek:

-FastTrader :)
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If that were on streets I'd be amazed. :eek: Still, excellent numbers. I heard Mustangs have problems hooking up, so how bad is it?

--opm8
 
Quote from opm8:


...I heard Mustangs have problems hooking up, so how bad is it?

--opm8
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No one with a high performance car leaves the stock gears in - they usually go Tremec and get a Pro shifter on the older Mustangs. The new Cobra is well equiped in this matter though, but still has a couple of "problems."

Look at the specs. One thing to notice is the shitty first gear ratio at 2.66 with a final drive at 3.55! No wonder they have a hard time getting them going on launch. Put in 3.75's or 4.10's and that will make a HUGE difference in launching the car (the downside is "bad" drivability at highway speeds.) The second thing to notice is the weight of the vehicle at 3,665 - pretty heavy.

I saw a review that said the Mach 1 is faster off the blocks and faster to 60 MPH than the new Cobra - not suprising as the rear end on that one is a solid axle as opposed to the Cobra's IRS, plus different power ratings along the horsepower curve.

Finally, notice that this car is almost $20K less than a Z Corvette. Put in a bigger CAM and take out the back seats, put in a fibreglass hood, and now we have a contest...

===== Specs of '03 Cobra=======
Type Longitudinally mounted, 90° V-8, cast iron block with aluminum heads, fully counterweighted forged crankshaft
Bore x stroke 90.2 x 90.0mm
Displacement: 4,601cc/280cid
Compression ratio: 8.5:1
Horsepower: 390 hp @ 6,000 rpm
Torque: 390 lb.-ft. @ 3,500 rpm
Specific output : 84.8 horsepower per liter
Redline: 6,500 rpm (fuel shut-off at 6,500 rpm)
Valvetrain: Double overhead camshafts, chain drive to exhaust cams, secondary chains from exhaust to intake cams, roller finger followers with hydraulic lash adjustment, oval-wire beehive shaped valve springs, four valves per cyclinder
Intake valves : 2 per cylinder, 37mm head diameter
Exhaust valves : 2 per cylinder, 30mm head diameter
Fuel system : Sequential electronic fuel injection
Ignition system : Distributorless coil-on-plug
Induction system : Eaton Corporation Generation IV Roots-type supercharger with water-to-air intercooler
Boost pressure: 8.0 psi maximum
Intake manifold : Cast aluminum, tuned equal length runners
Throttle body : 57mm twin bore
Mass-air sensor : 90mm diameter
Exhaust manifolds: Cast iron
Exhaust system: Dual, stainless steel, 2.25-inch diameter; 3.0 inch polished exhaust tips
DRIVETRAIN

Rear axle 8.8-in. ring gear with 3.55:1 limited-slip differential, aluminum case
Driveshaft Aluminum, with hardened yoke and U-Joints
Transmission TTC T-56 6-speed manual
Clutch 11.0-in. single plate
Half-Shafts 31 spline with increased capacity
Gear Ratio
1st 2.66
2nd 1.78
3rd 1.30
4th 1.00
5th 0.80
6th 0.63
Reverse 2.90
Final drive 3.55
SUSPENSION

Front: Modified MacPherson strut system with gas-charged Bilstein™ monotube dampeners and separate 600 lb/in (500 lb/in on convertible) spring on lower arm, 29mm tubular stabilizer bar
Rear: Multi-link independent system, cast iron upper control arm, aluminum lower control arm, fixed toe-control tie rod, aluminum spindle, gas-charged Bilstein™ monotube shock absorber, 600 lb/in (470 lb/in on convertible) coil spring, 26mm tubular stabilizer bar
STEERING

Type Rack-and-pinion, power assist
Gear Ratio 15.0:1
Turns, lock-to-lock 2.5
Turning Diameter 41.7 ft.
BRAKES

Front: 13.0 in. (330mm) vented Brembo™ disc, PBR™ twin-piston caliper
Rear: 11.65 in. (296mm) vented disc, single-piston caliper
ABS: Four-channel, four sensor system
WHEELS AND TIRES

Wheels: 17 x 9 in., five-spoke cast aluminum-alloy, machined surface, exposed lugs, optional chrome wheel available
Tires: Goodyear Eagle F1, 275/40ZR-17
DIMENSIONS AND CAPACITIES

Wheelbase: 101.3 in. (2,573mm)
Length: 183.5 in. (4,661mm)
Height: Coupe - 52.5 in. (1,336mm), Convertible - 52.9 in. (1,344mm)
Width: 73.1 in. (1,857mm)
Track, f/r : 60.3 in. / 60.3 in. (1,530mm / 1,530mm)
Head Room, f/r: 38.1 in. / 35.5 in. (968mm / 901mm)
Leg Room: 41.8 in. / 29.9 in. (1,062mm / 759mm)
Curb Weight : Coupe - 3,665 lbs. (1,662 kg), Convertible - 3,780 lbs. (1,715 kg)
Fuel Capacity : 15.7 gallons (59.4 liters)
Weight Distribution, f/r: 57% / 43%
 
Quote from maxpi:



Yup, and you can add a supercharger very easily, just replace the injectors with higher capacity ones and the computer will be able to compensate for the supercharger completely, can even pass California smog or so I'm told.

Max
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Actually, the computer (PCM) does need to be reprogrammed for the supercharger. My car is N/A and it still needed computer tuning.

-FastTrader :cool:
 
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