2007 ford shelby GT500 to come with its own gravitational pull
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Joined: Jun 2001
Posts: 4,600
From: Pewee Valley, KY
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by mastrdrver
A small bore and large stroke is a great combination for a street motor. The small bore usually allows for the combustion to more completely burn and the long stroke will give you the lowend you need. It was a good idea, I just don't think they saw the need for something bigger then a 5.4L when they were designing the engine. Back then HP wars were far from anyones minds.
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Joined: Jun 2004
Posts: 116
From: Wilmington, NC
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Can you imagine what happens when those cobra guys go crazy and start putting on like twin screw KB blowzillas?!?!
can we say 800ish wrhp!!!
can we say 800ish wrhp!!!
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Joined: Aug 2003
Posts: 3,011
From: Exton, Pennsylvania
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by Eric Bryant
Yea - you really have to wonder what was going through everyone's heads when this engine was developed. OHC with a small bore and long stroke engine wasn't exactly a great design direction.
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Joined: Feb 2000
Posts: 2,026
From: Japan
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Sounds like the car might already have an issue with breaking crank snouts off.
http://www.stangsunleashed.com/index...ticleid=94&s=&
If what that article said was true about the weight of that blower pulley...
26 pounds? Who's the genius that thought that thing up? If this says anything about the rest of the car then Ford might have a real piece of work on their hands.
I'll bet the main bearing at the front of the engine will look real good after a while of spinning that 26# brick around for a while too.
Sources close to the 2007 Shelby GT500 program are alleging that the crankshafts in the 5.4L GT500 engines are fracturing or breaking at the snout (nose) where the engine damper rides. The sources are alleging that the GT500 crankshaft breakage can be attributed to two complimentary issues. According to our reliable sources, Ford designed a crankshaft damper specifically for the GT500, but the damper weighs in at a hefty 26 pounds.
If what that article said was true about the weight of that blower pulley...
26 pounds? Who's the genius that thought that thing up? If this says anything about the rest of the car then Ford might have a real piece of work on their hands.I'll bet the main bearing at the front of the engine will look real good after a while of spinning that 26# brick around for a while too.
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Joined: Nov 2000
Posts: 16,176
From: Chicagoland IL
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by 95 Z/28 LT1
Sounds like the car might already have an issue with breaking crank snouts off.
http://www.stangsunleashed.com/index...ticleid=94&s=&
If what that article said was true about the weight of that blower pulley... 26 pounds? Who's the genius that thought that thing up? If this says anything about the rest of the car then Ford might have a real piece of work on their hands.
I'll bet the main bearing at the front of the engine will look real good after a while of spinning that 26# brick around for a while too.
http://www.stangsunleashed.com/index...ticleid=94&s=&
If what that article said was true about the weight of that blower pulley...
26 pounds? Who's the genius that thought that thing up? If this says anything about the rest of the car then Ford might have a real piece of work on their hands.I'll bet the main bearing at the front of the engine will look real good after a while of spinning that 26# brick around for a while too.
Thank you for that moment of clarity.
All that weight. All that power. All that complexity. Somehow, I'm not as excited about it as everyone else.
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Joined: Oct 2000
Posts: 2,402
From: Toronto, ON Canada
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by Eric Bryant
With respect to the GT500, how could we have gotten this many posts in so far without someone saying, "But, yea, if you put a blower on an LS1/LS2/LS7..."?
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Joined: Feb 2000
Posts: 2,026
From: Japan
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by muckz
Nice specs, and good chance it will be underrated.
What's the EPA mileage numbers for it? FI, 4000lbs, 500HP...
What's the EPA mileage numbers for it? FI, 4000lbs, 500HP...
The 500 hp rating was obtained using the Society of Automotive Engineer's latest standard and was witnessed by an objective third party. The Shelby GT500's 5.4-liter supercharged V-8 will be built at Ford's Romeo Engine Plant in Romeo, Mich. Pricing will be announced closer to launch.
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Joined: Feb 2000
Posts: 2,026
From: Japan
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Here's some more dirt from the same link I posted earlier:
Maybe it's part of their new "Bold Moves' campaign. 
Should the GT500 crankshaft allegations prove to be true and the launch of the GT500 is delayed, it could have a potentially devastating affect, not only on the GT500, but it could throw off the timing of other SVT products like the 2008 GT500. Moreover, consumers' feathers are already ruffled over the GT500 due to a variety of issues. Even though order banks opened weeks ago, Ford has failed to provide exterior color examples. They have also failed to provide consumers with absolute horsepower/torque ratings, MSRP pricing and keep in good communication with their PowerLease customers.
Could a crankshaft issue/delay be the reason why Ford has not released any new information on the 2007 Shelby GT500? On 19 April, we asked Ford questions about this story, however, they never responded.
Could a crankshaft issue/delay be the reason why Ford has not released any new information on the 2007 Shelby GT500? On 19 April, we asked Ford questions about this story, however, they never responded.
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Joined: Aug 2000
Posts: 6,165
From: Sterling Heights, MI
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by Z284ever
Thank you for that moment of clarity.
All that weight. All that power. All that complexity. Somehow, I'm not as excited about it as everyone else.
All that weight. All that power. All that complexity. Somehow, I'm not as excited about it as everyone else.
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Joined: Nov 1998
Posts: 3,252
From: Knoxville, TN
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by SSCamaro99_3
Great power. However, the 3.55 bore, and 4.165 stroke is poor. All that DOHC technology on a motor that peaks at 6000 rpm. I know it is a solid piece, but it is a lot of complexity for nothing.
On the other hand, while 500 HP is a lot in a factory car, the thing is still a fat pig that needs to go on a 500 lb diet.
/beating dead horse.
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Joined: Aug 2003
Posts: 3,011
From: Exton, Pennsylvania
Re: 2007 ford shelby GT500 to come with its own gravitational pull
Originally Posted by Bob Cosby
The 5.4 is capable of far more rpm. I have a personal friend that spun a n/a version to 7800 at will. Street car that made 430 RWHP on pump gas (stock displacement).
On the other hand, while 500 HP is a lot in a factory car, the thing is still a fat pig that needs to go on a 500 lb diet.
/beating dead horse.
On the other hand, while 500 HP is a lot in a factory car, the thing is still a fat pig that needs to go on a 500 lb diet.
/beating dead horse.
A 7800rpm 5.4 4v motor from Ford is going to cost them so much too make that it would in no way be worth it for them, and that is if they can certify it for emissions compliance. Besides, a 5.4 spinning to 7800rpm is going to create a piston speed of 5,408fpm, which is far more than I would ever want on a street engine that is supposed to be reliable. That is the kind of piston speed a ProStock car has to deal with, and those engines only have to run on boil for 6 1/2 seconds.