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Old Oct 9, 2007 | 01:15 PM
  #81  
Knight's Avatar
Needs to be more Astony
 
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From: Volo, IL
doesn't make sense at all unless they changed a lot more in the engine.

normal GT makes peak power at 5750rpm. You are going to loss so much power letting it rev to 6500. Even if the a new dampner can make it safe to 6500 doesn't mean you would want to rev that high.

If they really is going to be a higher redline tach you would need heads that flow better and a cam to support peak power that late.
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Old Oct 9, 2007 | 01:46 PM
  #82  
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Could they be putting a Gt500 instrument panel in it?
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Old Oct 9, 2007 | 02:03 PM
  #83  
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You think it has a different intake like the original, or do you think they are covering that with the frpp cai.
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Old Oct 10, 2007 | 07:42 AM
  #84  
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Originally Posted by mach1fever
You think it has a different intake like the original, or do you think they are covering that with the frpp cai.
FRPP according to the specs...
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Old Oct 10, 2007 | 08:54 AM
  #85  
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Then it has to be in the tuning of the vvt.
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Old Oct 10, 2007 | 08:57 AM
  #86  
Knight's Avatar
Needs to be more Astony
 
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From: Volo, IL
there is one of two things that has to be wrong.

Either the info about a 6500 redline is wrong, which i think is most likly, or there are a lot more engine upgrades that have been lead on.
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Old Oct 10, 2007 | 07:44 PM
  #87  
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Originally Posted by mach1fever
Then it has to be in the tuning of the vvt.
I would suspect that plus ignition timing.
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Old Oct 11, 2007 | 01:42 PM
  #88  
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Originally Posted by mach1fever
Then it has to be in the tuning of the vvt.

VVT as implemented by Ford (and Mazda) has very little effect on HP. It's mainly for emissions and a replacement for an EGR system. It is nothing like the Honda implementation. No real extra peak HP to be gained with it.
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Old Oct 11, 2007 | 03:13 PM
  #89  
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I thought that it adjusts for torque along with the variable runner length?
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Old Oct 11, 2007 | 11:03 PM
  #90  
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Joined: January 31, 2004
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From: NYC
Originally Posted by Topnotch
the steering wheel will be from the GT500 (w/o the red stitching)...
and the grille won't have the chrome strip.
Ford knows that they can make some money
by putting the chrome one in their accessory
catalog and make some aftermarket money from
the Bullitt crew.
Just noticed on the grille of the Red one that there are 5 clips on the bottom of the grille for the chrome strip...

http://www.stangnet.com/Ford-Mustang...ts-070918.html
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Old Oct 12, 2007 | 08:25 AM
  #91  
Knight's Avatar
Needs to be more Astony
 
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From: Volo, IL
wow you are right topnotch!
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Old Oct 12, 2007 | 11:15 AM
  #92  
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Joined: December 14, 2004
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From: Goshen, IN
nice find...whats the deal with the cutouts on the rear facia of the red car?
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Old Oct 12, 2007 | 11:33 AM
  #93  
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good catch
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Old Oct 12, 2007 | 11:53 AM
  #94  
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From: Las Vegas
The bottom of the grill on the red one is interesting. There's a whole line across the bottom that wasn't on the bare grill they showed at SEMA last year (pic below). I don't see how they're going to hold the sides, on, but that is an interesting detail along the bottom.
Attached Thumbnails New 2008 Order Guide W/Bullitt-bullitt_grill.jpg  
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Old Oct 12, 2007 | 01:06 PM
  #95  
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Originally Posted by mach1fever
the variable runner length?
There is no VRL system on S197s.
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Old Oct 12, 2007 | 07:29 PM
  #96  
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Originally Posted by LBJay
There is no VRL system on S197s.
There are "charge motion plates" that open and close on the 3V 4.6L V8.
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Old Oct 13, 2007 | 07:59 AM
  #97  
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Originally Posted by Tony Alonso
There are "charge motion plates" that open and close on the 3V 4.6L V8.
Yep, to increase air velocity at low RPMs (idle and off idle) for emissions. Not done for the same reason as a VRL.
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Old Oct 13, 2007 | 01:34 PM
  #98  
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Originally Posted by LBJay
Yep, to increase air velocity at low RPMs (idle and off idle) for emissions. Not done for the same reason as a VRL.
I understand the function also to be used for fattening the torque curve at low-to-mid RPMs, not just for emissions.
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Old Oct 14, 2007 | 01:25 AM
  #99  
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I Have No Life
 
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From: Canada
Originally Posted by codeman94
nice find...whats the deal with the cutouts on the rear facia of the red car?
Manufacturer Test Car
has the gas tank drains
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Old Oct 14, 2007 | 09:36 AM
  #100  
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Originally Posted by Tony Alonso
I understand the function also to be used for fattening the torque curve at low-to-mid RPMs, not just for emissions.
Charge Motion Control Valves improve low-speed combustion

The air-fuel mixture entering an engine behaves differently at different engine speeds and loads. At low engine speeds and light loads, relatively little air-fuel mixture is drawn into the cylinders in a given time period, so it moves relatively slowly through the intake runners and into the cylinders. At high engine speeds, the intake mixture speeds up, as a larger volume passes through the intake runners over the same time period.

One of the challenges involved in squeezing the utmost efficiency out of each drop of fuel is to assure that it mixes thoroughly with air, in the right ratio, before it is burned in the cylinders. This is easiest when the air is moving quickly.

At lower speeds and lighter loads, the new three-valve engine uses an electronically controlled metal flap at the end of each intake runner – eight in all. This Charge Motion Control Valve was specially shaped, through CAD modeling and testing, to speed up the intake charge and induce a tumble effect in the combustion cylinder. This causes the fuel to mix more thoroughly, and to burn quickly and efficiently, with reduced emissions, particularly at idle.
The CMCVs are controlled by an electronic motor, and open at a predetermined point as engine speed increases. At higher RPM, they do not affect the intake charge at all. This allows undisturbed maximum flow into the combustion chambers at wide-open throttle. The CMCV motor is sound insulated, so its operation remains transparent to vehicle occupants.


Peter Dowding, manager of Ford's Modular V-8 and V-10 engines
"Another important detail is that the last discharge of any exhaust stroke is carbon-rich, and VCT allows us to attract that charge back into the chamber and re-burn it, which is very, very good for HC emissions. Our Charge Motion Control Valves can generate turbulence in the incoming fresh charge, mixing and swirling the air and fuel together with that previously-burned gas before igniting it. That is very significant because it allows us not only to reduce [NO.sub.x] but also to re-burn that HC-rich discharge." As a result, the previous engine's external EGR (exhaust gas recirculation) system is no longer needed.
The VCT system does return some torque to part throttle low RPM range that would be lost with WOT high RPM tuning for HP/Torque of a non-VCT system. But it is marginal. #1 reason it's there is emissions.
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