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-   -   Saleen S7 (0-62mph in 2.9sec)... (http://www.motorworld.net/forum/showthread.php?t=9541)

ahmedgiyab 04-28-2004 10:22 AM

Saleen S7 (0-62mph in 2.9sec)...
 
Horsepower and torque have both been increased, 25 bhp and 45 lb-ft, respectively, up to 575 bhp @ 5500 rpm and 570 lf-ft of torque @ 4700 rpm. But these increases were not the point of the exercise strictly by themselves. Rather they are a happy consequence of responding to our customers’ desire, not for more performance, but for improvements in around-town drivability.

In analyzing this request, Saleen engineers made three important changes. The transmission 1st gear ratio and the final-drive ratio are shorter (higher numerical ratios). These gear changes, in conjunction with a revised clutch, make for much smoother takeoffs from rest. Most engineers probably would have stopped right here. But not Saleen’s engineers. In the course of their analysis, engine tuning also came under scrutiny. And by playing with cam timing and airflow and the engine’s PowerFlash™ computer, they managed to broaden already broad power and torque curves for smoother and more flexible performance. And to extract even more power from the S7’s already very potent 7-liter V8.

In true supercar fashion, the S7 is capable of speeds exceeding 200 miles per hour, with a zero-to-60 time under three seconds. And thanks to its extreme ground effects engineering, at 160 mph the car could be driven upside down and still maintain contact with the road. So lack of downforce has never been an issue with the S7. But as a result of wind tunnel testing, Saleen engineers have made some tweaks at the rear of the car. A revised rear spoiler has replaced the previous design. In addition, the rear diffuser, which channels air smoothly from under the rear of the car, has been redesigned. It is slightly larger and has a winglet in the middle. Collectively, the new spoiler and revised diffuser have a noticeable effect on reducing drag (for a higher top speed) while also increasing down force at the rear of the car.

Dual Personality

The Saleen S7 was conceived to combine the performance of a track-only racecar with the driving pleasure of a road car. As a result, while the S7 would be at home on any racetrack, it is also a car that can be driven with pleasure on highways, Autobahnen and back roads.

“With the improvements made in gearing, engine tuning and aero, the S7 is not only easier to drive at ‘normal’ around town speeds, but also it’s more fun,” says Saleen President, Steve Saleen. But don’t expect less of the Saleen ‘attitude.’ The S7, like every Saleen, is a product of Saleen’s strong racing heritage. We wouldn’t feel we’d accomplished our mission if you didn’t come away from a drive around the block thinking the S7 felt like ‘a race car for the street,’ “ Saleen continued. We designed it that way.”

Chassis, Suspension & Brakes

The S7 chassis and suspension incorporate decades of Saleen’s experience in racing, racecar construction and high-performance road car manufacturing. The Saleen S7 architecture begins with a space frame chassis to which honeycomb composite reinforcing is grafted. The body is autoclave carbon fiber.

Suspension is via fully independent unequal-length double wishbones with coil-over springs, lightweight aluminum dampers (shock absorbers) and stabilizer (anti-roll) bars front and rear. The uprights at each corner are CNC machined billet aluminum, flow-through designs.

Saleen-engineered Brembo-supplied lightweight aluminum six-piston mono-block calipers are fitted front and rear. The brakes are among the largest of any production car with 15-inch vented discs up front and 14-inch vented discs at the rear.

The Saleen-designed forged alloy wheels feature center locking wheel nuts with automatic safety locks. Sizes are 19 x 9.5 inches up front and 20 x 12 inches at the rear. The wheels are shod with ultra-high-performance Pirelli P Zero tires in sizes 275/30ZR19 front and 345/25R20 rear.

Engine & Drivetrain

Designed by Saleen engineers, the S7's engine and drivetrain incorporate the latest in modern racing technology. The all-aluminum V8 engine casting was engineered by Saleen to displace seven liters, generating 575 horsepower at 5500 rpm and delivering 570 foot-pounds of torque at 4700 rpm. Redline is 6500 rpm. Space age materials and engineering are used throughout, including stainless steel valves, titanium retainers, beryllium exhaust valve seats, magnesium throttle body, Saleen-designed aluminum CNCmachined cylinder heads and a ceramic-coated stainless steel exhaust system.

An exclusive Saleen-designed Front Engine Accessory Drive (FEAD) system results in an extremely compact engine, allowing for better packaging and overall weight distribution. The V8 incorporates a unique Saleen-designed side-mounted water pump, extremely accurate belt-driven camshaft drive, and a Saleen-engineered dry sump oil delivery system.

The engine's mid-chassis placement optimizes weight distribution and center of gravity, making room for an unusually tall engine that allows for a very efficient plenum arrangement. Air inducted by the roof air intake flows into a cold air box and then into an aluminum intake manifold with eight individual runners.

A Saleen PowerFlash™ performance computer, recalibrated for 2004, handles engine management. The ignition system is integrated coil-on-plug.

A new-generation six-speed transaxle, with a unique Saleen bell housing, transfers power to the wheels. The clutch is an organic/metallic 8.0-inch, twin-plate unit with hydraulic actuation.

Body Design

The S7’s beautiful shape was “designed” by the wind. Optimal aerodynamics and top speed performance objectives were achieved with extensive wind tunnel work. Targets included a low coefficient of drag, optimum drag-to-lift ratio, and extreme down force. The S7 has “full tray” body sculpting underneath.

Longtime Saleen design consultant Phil Frank then personalized and refined the aesthetics of the S7 to reflect modern supercar thinking. The gill-like ducting is, of course, fully functional. The autoclaved carbon fiber body panels incorporate advanced aerodynamics and include integrated split-channel airflow throughout the car, full underside air management, and advanced front tray and side skirt designs and an integrated full-body rear spoiler, replacing the wing used previously.

The mid-engine Saleen S7 has front and rear trunks and comes with Mulholland Brothers custom-made, 3-piece, fitted luggage. In true supercar style, the doors open up and away from the body.

“When seen in person, the S7 has an amazing overall presence,” says Steve Saleen, founder and president of Saleen, Inc. “It’s quite long and wide, yet only 41.0 inches high, adding to its exotic appearance. We wanted to maintain a ‘form-follows-function’ look, but one that was esthetically beautiful as well. I really feel we’ve achieved both.”

Interior

As much care has been given to the creature comforts of the Saleen S7 as to its performance. Great attention was given to seating position. The car features asymmetrical seating, with the driver position moved slightly more to the center than the passenger. This improves the driver’s ergonomics, improves the side-to-side weight distribution, and allows the passenger side to have a narrower threshold. The S7 is unusually accommodating of tall drivers.

Seats and other interior surfaces are covered in elegant leather and suede. Air conditioning, power windows, adjustable pedals, a steering wheel that telescopes and tilts and an AM/FM/CD/DVD/TV systems are all standard (GPS is optional). The Saleen S7 also has one unique interior feature: a video “rearview mirror” — there is a small video camera inconspicuously mounted in the rear of the car.

:D :D :D

Mopsdrops 04-28-2004 10:40 AM

thankz very very much for all that information!
i've always thought a Saleen S7 did 0-60 in 3.3 seconds, but it seems i'm wrong. thanks for the nice information! :o

Tomerville 04-28-2004 11:17 AM

Gee, upsidedown at 160? What is the chassis made out of?

nthfinity 04-28-2004 12:26 PM

Quote:

i've always thought a Saleen S7 did 0-60 in 3.3 seconds, but it seems i'm wrong. thanks for the nice information
it was according to R+T, this is a re-designed model, as stated in the first few paragraphs.... albiet, slightly re-designed :wink:
Quote:

Gee, upsidedown at 160? What is the chassis made out of?
Quote:

The Saleen S7 architecture begins with a space frame chassis to which honeycomb composite reinforcing is grafted. The body is autoclave carbon fiber.
well, i think its been said before, but it produces its body mass @ 160mph... which means it wouldnt fall.... but it really wouldnt maintain contact.... :wink:

possessed_beaver 05-01-2004 03:51 AM

this car is bloody fast :shock: :shock: :shock:

mit5005 05-01-2004 03:06 PM

Ooo I can't wait till they come out with the redesigned model. The car is already perfect in my mind but making it better would be incredible. I also want to see someone like Clarkson or Tiff test it. Then we would know what it can really do.

nthfinity 05-01-2004 10:22 PM

Quote:

Ooo I can't wait till they come out with the redesigned model. The car is already perfect in my mind but making it better would be incredible. I also want to see someone like Clarkson or Tiff test it. Then we would know what it can really do.
lol, we already know 'what it can really do' ........but i agree, it would be more fun to watch Tiff, or Clarkson do massive burnouts, and racing it on a circuit!

spicymustard 05-01-2004 11:44 PM

hum... i love the car, and have seen one in person. They are pretty crazy looking. However I need to see some independent testing of the sub 3 sec 0-60 claim. With street tyres, i doubt it.

nthfinity 05-02-2004 07:15 PM

EDIT 666th post
 
Quote:

However I need to see some independent testing of the sub 3 sec 0-60 claim. With street tyres, i doubt it.
i would love to as well..... as far as tire choice, there are all sorts of streetable tire compounds that are almost as grippy as cheater slicks. also, the previous spring to 60 was only 4 tenths more time.... not much that the additional hp, and torque negate :wink:

this was my 666th post, and being it matches my licence plate... heh heh :twisted:
http://www.jabbasworld.net/photopost...079666-med.jpg

oscargarza88 05-02-2004 07:27 PM

i love this car, i thought it was much bigger but when i saw it in person i loved it, and the new one is just going to b :shock:
i also doubt the 1-60 time tho...

dons5 05-08-2004 07:00 PM

ya of course its an awesome and fast car, but it kinda ruins the car when u have to come up with an updated version, i dont see Ferrari updating there Enzo with more power or better aero or anything, when u make a rare/super car u should make it once and thats it, leave the updates ofr the next new car not an updated version, like Ferrari will wait till F60 or whatever to improve on the Enzo, not on an Enzo Version 2.0 lol, but of course its an awesome car, its beautiful, but typical supercar looks, it stands out obviously but not when next to an Enzo and Zonda, but its still awesome, and about the updating car thing, im not talkin bout 360 modena - Challenge Stradale and 500 Maranello - 575M, cause those arent super cars like F40 F50 Enzo etc.

dons5 05-08-2004 07:02 PM

*550 lol not 500 ahahah

sentra_dude 05-08-2004 08:26 PM

^^^Umm dude...I don't think it ruins it, or makes the older version look bad; I think they need to do that to keep up with the competition, but whatever, you have your opinions...and I have mine.

dons5 05-08-2004 11:44 PM

of course they have to keep up with competition, but still when it comes to cars im not just a numbers man, i dont think a car is better becuase of the numbers u know what i mean, like i take other things into consideration also, how its built, where, the history of the company, how does the engine make power, looks, does it need turbo's or superchargers, u know, its like a girl everyone wants a hot one, but ud rather take one thats not as hot but u liked her better as a person, haah im not sayin id take the ugliest girl in the worl cause shes nice lol but u know what i mean,

dons5 05-08-2004 11:56 PM

another example Porsche, sure there prob as good as they have ever been, and sure the 911 gt3 rs or whatever the new gt3 is called, is close competition and some say even better then the 360 Challenge Stradale when it comes too lap times, but i would still not get it. and im not talkin bout the obvious reasons like it doesnt have that Ferrari unbelievable sound, or it doesnt make ur heart pump as fast, or the gorgeous looks or whatever, its what Porsche the comany itself does that turns me off, first of all there not even in F1 where the best motor companys are supposed to be in when it comes to racing, second of all they got soooooo many different kinds of 911's, so that puts the exclusive/special points down for the car, third They make an SUV!!!!!!!! enough said bout that lol even many Porsche fans were mad about that because it ruins the image of the company, and 4th i heard they make like 40 or 50 thousand porshces a year, when Ferrari makes like wut, 4 thousand i think, and they also stay under there limit, they dont say well lets sell more to make more money, even though there in the most expensive sport in the World F1!!! and there still the best easily


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