LS1.com

06-02-2002, 04:22 PM

i want the new test 4.6

from a FR 500 review

Because performance freaks focus their attention more on the "go" than on the "show" aspect of a car, the FR500's real beauty is underhood. There you'll find a Cobra 4.6-liter 4V all-aluminum block whose displacement has been increased to 5.0 liters by the use of new "spray bore" technology.

On engines like the 4.6 that cannot be bored out because of the limited casting thickness of the cylinder walls, displacement is increased by removing the steel cylinder sleeves from the cast aluminum block and spraying the bores with a ceramic-like coating that serves as hardened cylinder walls. While Ford has yet to employ this new technology in production, its use could help squeeze more power from engines without retooling them.

New, high-flow four-valve heads with more radical cam geometry are added, along with an all-new variable geometry magnesium intake manifold, dual 80mm mass-air sensors, dual 70mm throttle bodies, and stainless-steel tubular headers. This massaged Cobra engine makes a reported 415 horsepower at 6,800 rpm (redline is 7,000 revs), and 365 foot-pounds of torque at 4200 rpm. But wait—there's more.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Stangnet vs LS1.com	bigwhitecobra	Blue Oval Lounge	9	02-21-2003 11:02 AM
LS1.COM	Power	Blue Oval Lounge	12	03-15-2001 03:42 PM
who's been to Ls1.com?	90dpscoupe	Stang Stories	15	01-11-2001 12:21 AM

06-02-2002, 04:22 PM	#11
digital3.3 Guest Posts: n/a	i want the new test 4.6 from a FR 500 review Because performance freaks focus their attention more on the "go" than on the "show" aspect of a car, the FR500's real beauty is underhood. There you'll find a Cobra 4.6-liter 4V all-aluminum block whose displacement has been increased to 5.0 liters by the use of new "spray bore" technology. On engines like the 4.6 that cannot be bored out because of the limited casting thickness of the cylinder walls, displacement is increased by removing the steel cylinder sleeves from the cast aluminum block and spraying the bores with a ceramic-like coating that serves as hardened cylinder walls. While Ford has yet to employ this new technology in production, its use could help squeeze more power from engines without retooling them. New, high-flow four-valve heads with more radical cam geometry are added, along with an all-new variable geometry magnesium intake manifold, dual 80mm mass-air sensors, dual 70mm throttle bodies, and stainless-steel tubular headers. This massaged Cobra engine makes a reported 415 horsepower at 6,800 rpm (redline is 7,000 revs), and 365 foot-pounds of torque at 4200 rpm. But wait—there's more.