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Thread: Held/HT Suspension recomendations for an AD355 Spider

  1. #1

    Held/HT Suspension recomendations for an AD355 Spider

    Can anyone make any recomendations about suspension measurements for an AD355? I am looking at getting the Held suspension, and I do not want to run any wheel spacers unless they are just real thin ones to get wheel alignment right. I want to extend the A-arms out to the appropriate location. Also, I want do my drop at the spindles, not via the coil overs. I want to be able to use the adjustment on the coil overs to adjust ride quality, not depend on it for ride height.

    How much wider do I need to go on the front and rear for an AD355 kit?
    Is 2" drop on the spindles too much, or should it be ok?

    Thanks for any input you may have.

  2. #2
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    Re: Held/HT Suspension recomendations for an AD355 Spider

    Dave (funnywheels) can answer all your questions as this is exactly what he did on his car. You should start a build diary (if you havent already) on your build. Nice to see another AD355 going together. I am working on the chassis/suspension now but am using corvette suspension parts so my measurements would be of little use to you.

  3. #3

    Re: Held/HT Suspension recomendations for an AD355 Spider

    Quote Originally Posted by Ferrari Berlinetta
    Dave (funnywheels) can answer all your questions as this is exactly what he did on his car. You should start a build diary (if you havent already) on your build. Nice to see another AD355 going together. I am working on the chassis/suspension now but am using corvette suspension parts so my measurements would be of little use to you.
    Thanks. I dropped him an email. Hopefully I don't use up all my questions before I really need his help!

  4. #4

    Re: Held/HT Suspension recomendations for an AD355 Spider

    I measured my front drop to be 2", but when I did this, it was on the group. I had to raise it up 1". The only trick to the suspension extension (either via spacers or longer A-Arms) is to mount the body first. Then get the wheels you are going to use. Place the wheels into the wheel wells and then measure. Please do not guess or use other peoples measurements. Every wheel is different and every build is just a little different also.

  5. #5

    Re: Held/HT Suspension recomendations for an AD355 Spider

    Quote Originally Posted by Brastic
    I measured my front drop to be 2", but when I did this, it was on the group. I had to raise it up 1". The only trick to the suspension extension (either via spacers or longer A-Arms) is to mount the body first. Then get the wheels you are going to use. Place the wheels into the wheel wells and then measure. Please do not guess or use other peoples measurements. Every wheel is different and every build is just a little different also.
    Probably makes sense. I didn't really want to spend money on wheels yet, but I guess I have to buy them sometime.

  6. #6
    Moderator FunnyWheels's Avatar
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    Re: Held/HT Suspension recomendations for an AD355 Spider

    Newman Ferrari 355 Suspension Package



    Front Suspension

    Ryane Slalom Wide Track $2,400.00
    Coil Over Shock Suspension
    4.75 Bolt Circle
    Spring Rate / 350#
    Add 2 Each Side
    Front Anti-Sway Bar 1.125 Diameter
    2 Longer Tie Rod Ends

    Need
    New Tie Rod Ends $80.00
    Steering Stabilizer $90.00


    Rear Suspension

    Held Slalom Anti-Bump-Steer Wide Track $1,250.00
    4.75 bolt circle
    Spring Rate / 350# (need 400#)
    Add 5 to Each Side
    Rear Anti-Sway Bar 1.00 Diameter $210.00
    4 Longer Tie Rod Ends, $90.00

    Need
    89 Cutlass Ciera Upright Assembly (casting for larger bearings)
    88 89 Chevy S-10 Front Spindles and CV Joint Assembly for Front Wheel drive. (bigger bearing, heavy-duty splines,
    larger CV joints and 4.75 bolt circle).
    Ciera Upright Assembly machined to fit S-10 Parts into Casting.

    Ciera upright castings $10.00 each side, Used
    S-10 Spindles and brakes $25.00 each side, Used
    99 Buick Park Avenue Axles, for use with Getrag 5 Speed
    Custom axles, PSI Engineering $400.00 Pair


    Braking System 12 Wilwood Disk Brake Package $2,855.00
    4 - 4.75 Bolt Circle Aluminum Hats
    4 - 12 Inch Vented Rotors
    2 - Caliper Bracketing Rear
    4 - 4 Piston Calipers
    Two Manual Piston Emergency Brake Calipers
    Semi-Metallic Brake Pads, Rear
    High Friction Racing Pads, Front
    Stainless Steel Braided Lines to Match Wide Track Options
    High Volume GM Truck Master Cylinder
    Wilwood Proportioning Valve

    Wheels Used:
    Challenge Car Take offs with 16 miles on them $4,200
    355 Ferrari OEM
    Front 18 X 7.5, Pirelli PZero Tires
    Rear 18 X 10, Pirelli PZero Tires
    Ferrari Center Caps

    Additional Parts:
    Center X frame to stiffen chassis between the wheels under cockpit, $550.00 for parts, $150.00 for shop to weld it in place.
    2 Inch Strut Offset Mount to push bottom of shock into the center of the rear suspension for tire clearance.



    If you're not confused, you're not paying attention.

  7. #7

    Re: Held/HT Suspension recomendations for an AD355 Spider

    You know Dave... you never cease to amaze me. Thanks.

  8. #8
    Moderator FunnyWheels's Avatar
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    Re: Held/HT Suspension recomendations for an AD355 Spider

    If you're not confused, you're not paying attention.

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