Quicker steering in 981. Is this possible?
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Thread: Quicker steering in 981. Is this possible?

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    Quicker steering in 981. Is this possible?

    Wondering if anyone has found a way to have quicker steering in the 981.
    I have X73 and Sports Design wheel. But for day to day driving, for example in round-abouts, it requires turning the wheel way too much... feels like I'm about to cross my arms over in some places.

    Any suggestions for modifications?
    Brian

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    Re: Quicker steering in 981. Is this possible?

    There is a steering upgrade, called power steering plus, but that is just less force on the steering wheel to turn at low speed. Suncoasticon sells the license key, but a dealer with a Porsche network account has to enter the key and your VIN on Porsche's web site and it generates a 32 digit code that has to be programmed into the car with a PIWIS. The license key is then assigned to your car and cannot be used on or transferred to another VIN.

    Traditionally for the track, an alignment or softer front sway bars coupled with stiffer rear bars can help reduce the amount of steering rotation to make a turn, but that is at speed. Even though 981s have electronic steering, it is in the power assist and the steering gear ratio in the rack determines/fixes the steering wheel rotation vs physical wheel turn.

    V6
    Last edited by Voyager6; 01-23-2019 at 11:04 AM.

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    Re: Quicker steering in 981. Is this possible?

    Quote Originally Posted by Voyager6 View Post
    There is a steering upgrade, called power steering plus, but that is just less force on the steering wheel to turn at low speed. Suncoasticon sells the license key, but a dealer with a Porsche network account has to enter the key and your VIN on Porsche's web site and it generates a 32 digit code that has to be programmed into the car with a PIWIS. The license key is then assigned to your car and cannot be used on or transferred to another VIN.

    Traditionally for the track, an alignment or softer front sway bars coupled with stiffer rear bars can help reduce the amount of steering rotation to make a turn, but that is at speed. Even though 981s have electronic steering, it is in the power assist and the steering gear ratio in the rack determines/fixes the steering wheel rotation vs physical wheel turn.

    V6
    I almost bought the Power Steering Plus License, but consensus was that it only makes the wheel feel "lighter" at lower speed. I'm looking for less turns lock-to-lock; was hoping it could be achieved without changing the entire steering rack.
    Have you heard of any shorter gear ratio modifiers for the rack?

    Thanks.
    Brian

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    Re: Quicker steering in 981. Is this possible?

    Quote Originally Posted by barcuri View Post
    I almost bought the Power Steering Plus License, but consensus was that it only makes the wheel feel "lighter" at lower speed. I'm looking for less turns lock-to-lock; was hoping it could be achieved without changing the entire steering rack.
    Have you heard of any shorter gear ratio modifiers for the rack?

    Thanks.
    Reduced gear ratio with out replacing the rack... hmmm I don't know if that is possible, personally I would do nothing to a rack that would compromise it physically, loosing steering would not be pretty... A net new rack would be safer IMHO.
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    Quote Originally Posted by Westcoaster View Post

    Reduced gear ratio with out replacing the rack... hmmm I don't know if that is possible, personally I would do nothing to a rack that would compromise it physically, loosing steering would not be pretty... A net new rack would be safer IMHO.
    Would a 718 rack be the path to look at? Would you know if it's noticably shorter lock-to-lock than the 981 rack?

    Thanks.
    Brian

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    Re: Quicker steering in 981. Is this possible?

    Quote Originally Posted by barcuri View Post
    Would a 718 rack be the path to look at? Would you know if it's noticably shorter lock-to-lock than the 981 rack?
    You will find a 718 rack slightly quicker if you pay attention to it, but it's not a huge difference that jumps out at you. Regular street cars don't have the steering rack of a purpose built race car...for tight roundabouts and sharp turns it is completely normal that you need more lock than you can achieve with your hands glued to the steering wheel.
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    Re: Quicker steering in 981. Is this possible?

    Quote Originally Posted by barcuri View Post
    Would a 718 rack be the path to look at? Would you know if it's noticably shorter lock-to-lock than the 981 rack?

    Thanks.
    The image below has the steering ratio and turning radius of the 981. I clipped this from the Cayman technical specification sheet I have, so I assume the same info is out there for the 718 to compare.
    Attached Thumbnails Attached Thumbnails Quicker steering in 981. Is this possible?-capture-jpg  

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    Re: Quicker steering in 981. Is this possible?

    I almost purchased a 718 rack, but was told by Jens Ehresmann that it will not fit. The 981 Boxster Spyder runs the 991 Turbo Steering Rack (so i have been told), maybe drop that in?
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    Re: Quicker steering in 981. Is this possible?

    Quote Originally Posted by jayk View Post
    I almost purchased a 718 rack, but was told by Jens Ehresmann that it will not fit. The 981 Boxster Spyder runs the 991 Turbo Steering Rack (so i have been told), maybe drop that in?
    718 is basically 981.2. That's how Porsches own internal code. Most of the parts, except engine, and body panels are exact same part numbers. I highly doubt that they used steering rack that requires whole bunch of different related parts. My guess would be that it will have exactly same mounting points and dimensions. Just my guess. You'll need actual parts side by side to see if it's true or not.
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    Thanks to everyone that responded.
    I'm going to stop by Parkhaus1, a reputable Porsche shop near my home, and ask if they've done something like this.
    I'll ask about both the 718 and the 981 Spyder rack.

    I'll post back with their suggestion on the matter.

    All the best.
    Brian

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    Re: Quicker steering in 981. Is this possible?

    There are a few different steering techniques that prevent you from crossing your arms. Short of swapping hardware or other significant changes, you might consider changing your technique. The shifty hands or Zaccone method might solve your problem.
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    Re: Quicker steering in 981. Is this possible?

    This is a VERY slippery slope. Getting a quicker rack to reduce lock-to-lock distance as low speeds will have consequences when the car is at speed. Once you start messing with steering geometry, you're also impacting other systems such as PSM.

    FWIW, I've never been in a roundabout in North America or Europe that the Zaccone method didn't allow me to navigate without taking my hands off the wheel (9 & 3). On the track in either street car or race car - even a course with hairpin corners - my hands never need to leave 9 & 3. (If you're driving like a yahoo - yes, Chris Harris comes to mind - then "proper" technique doesn't apply. But his style has NOTHING to do with getting around a corner quickly.) Hands always at 9 & 3 maybe feels a bit odd until you get used to it (can't remember as, like heel and toeing, it was learned almost 40 years ago)...but it's the best way to actually CONTROL a car rather than just guide it haphazardly through a corner.

    I have, however, been on autocross courses that were so tight that Zaccone didn't work. Kinda hate the feeling of having to flail at the wheel, to be honest, and it's one of the reasons I don't really get too excited about autocrossing. I have a hard enough time slowing down my activities in the cockpit on a race course, much less on an autocross course where everything is done at 3x speed.
    Last edited by gcurnew; 01-28-2019 at 08:35 PM.
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    Re: Quicker steering in 981. Is this possible?

    Quote Originally Posted by T-Design View Post
    718 is basically 981.2. That's how Porsches own internal code. Most of the parts, except engine, and body panels are exact same part numbers. I highly doubt that they used steering rack that requires whole bunch of different related parts. My guess would be that it will have exactly same mounting points and dimensions. Just my guess. You'll need actual parts side by side to see if it's true or not.
    Minor correction - The 718 has an internal code of 982. 718 parts that are not identical to the 981 have part numbers that start with "982".

    As for Power Steering Plus, don't even consider it. It won't achieve what you're looking for, and it makes the steering much too light. I have it in my 981 and wish that it were gone. The weight and feel of the 718 steering is noticeably better. I like the steering feel of the 987 the most, but that's a completely different animal.

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    Re: Quicker steering in 981. Is this possible?

    This sounds like an interesting mod but I imagine it would be a costly one, too. When I drove a 718, for a week and a half whilst my 981 was getting some warranty work, this one was of the things I noticed. I don't remember the figure exactly but I think Porsche said it had 15% sharper steering. That small amount, for me at least, felt perfect. Good luck!

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    Re: Quicker steering in 981. Is this possible?

    Quote Originally Posted by barcuri View Post
    Thanks to everyone that responded.
    I'm going to stop by Parkhaus1, a reputable Porsche shop near my home, and ask if they've done something like this.
    I'll ask about both the 718 and the 981 Spyder rack.

    I'll post back with their suggestion on the matter.

    All the best.
    Have any luck with this?
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