Identifying a FHP in 550 Maranello - Ferrari Life
 
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post #1 of 4 Old 07-03-2017, 08:50 AM Thread Starter
 
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Identifying a FHP in 550 Maranello

Hello All,

What are the 3 obvious clues for visually identifying a FHP in 550 Maranello?

Regards,
Gianni

1999 Ferrari 550 Maranello FHP; 1999 Ferrari 456M GT; 1996 Buick Riviera; 2008 Bentley GT; 2010 Lotus Evora; 1969 Alfa Romeo 1750 GTV;
Past cars: 1965 Corvette Stingray Roadster; 1974 Corvette Stingray.
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post #2 of 4 Old 07-03-2017, 09:14 AM
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None, except possibly a slightly lower ride height. Check for FHP on 550s by looking at the part numbers on the Hydraulic Steering ECU, the Shock Absorber ECU, and the spring numbers on the paper tags. You can also measure the diameter of the rear anti-roll bar. Should measure about 23.5 mm for FHP and 17.5 mm standard, including paint thickness.

If she still has the FHP pads, the brakes will likely squeal, too.

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.

Last edited by tazandjan; 07-03-2017 at 01:25 PM.
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post #3 of 4 Old 07-03-2017, 12:43 PM Thread Starter
 
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550 anti-roll bars size on FHP

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Originally Posted by tazandjan View Post
None, except possibly a slightly lower ride height. Check for FHP by looking at the part numbers on the Hydraulic Steering ECU, the Shock Absorber ECU, and the spring numbers on the paper tags. You can also measure the diameter of the rear anti-roll bar. Should measure about 23.5 mm for FHP and 17.5 mm standard, including paint thickness.

If she still has the FHP pads, the brakes will likely squeal, too.
Hello Terry,

Many thanks for the information.

I've found diagrams online for the front and rear suspension showing the anti-roll bars. Are the same diameter for both front and rear?

Regards,
Gianni

1999 Ferrari 550 Maranello FHP; 1999 Ferrari 456M GT; 1996 Buick Riviera; 2008 Bentley GT; 2010 Lotus Evora; 1969 Alfa Romeo 1750 GTV;
Past cars: 1965 Corvette Stingray Roadster; 1974 Corvette Stingray.
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post #4 of 4 Old 07-03-2017, 01:25 PM
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No, In general, the front bars are much thicker because of the weight forward distribution of the Maranellos, about 52%F, 48% rear, regardless of what you read in the press about 50/50 weight distribution. I do not know the diameter of the front bars, which remain unchanged in FHP and HGTC (575 only).

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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