4pt harness for autocross

Discussion in 'Road Course, Track, Autocross, HPDE' started by Cardude99, Mar 15, 2019.

  1. Cardude99

    Cardude99 Well-Known Member

    First Name:
    Sam
    Vehicle(s):
    2018 Ecoboost
    Joined:
    Feb 14, 2016
    Location:
    Phoenix, AZ
    Posts:
    1,600
    Likes Received:
    585
    0   0   0
    #1 Cardude99, Mar 15, 2019
    Last edited: Mar 15, 2019
    Hey guys wanted to reach out for some advice. I am starting to get a little more aggressive when I go to events. This past weekend it felt like I was rolling all around the front seat and it was exhausting holding myself with the steering wheel. I started to think of a harness and if it might help secure me better. I see that American Muscle sells a bunch of them. I was eying the corbeau 4pt harness in blue, as there doesn't seem to be anything else available for the 18+

    Since I have the standard ecoboost cloth seats, would a 4pt harness work with those? Would it help me and hold me in one spot better?

    Now as much as I would love a recarro, I'm not small and can not fit in one. In fact I am not certain if there is a racing seat I could fit in. Also it's a DD and I like the stock seats for that, so I am not really looking to replace the seats at all. I do not use the rear seats for anything other than throwing my helmet or a jacket back there. No one sits back there. I do not do hpde and have no plans to in the near or distant future. Autox is cheaper and safer which I like. Is a 4pt harness right for me and will it help me?

    I did search and most all of the info I found was for hpde so hoping some of the more avid autox'ers can chime in.
     
  2. JohnD

    JohnD Legend in his own mind

    Vehicle(s):
    16 GTPP
    Joined:
    Sep 26, 2016
    Location:
    beyond the pale
    Posts:
    467
    Likes Received:
    179
    0   0   0
    Schroth Quick Fit Pro and yer done.

    https://www.schrothracing.com/products/quickfit#3317

    I just installed one, helps if you have a rear seat delete but it's not a biggie. I found it helpful to clearance the trim panel on the driver's lap belt side. It also doesn't interfere with the functioning of the OEM seatbelt on the street including the pretensioner.

    Without seat bolsters though you still might have a problem, all you can do is try it and see. I have Recaros so not sure what your results will be like.
     
    suprmario96 likes this.
  3. OP
    OP
    Cardude99

    Cardude99 Well-Known Member

    First Name:
    Sam
    Vehicle(s):
    2018 Ecoboost
    Joined:
    Feb 14, 2016
    Location:
    Phoenix, AZ
    Posts:
    1,600
    Likes Received:
    585
    0   0   0
    Hey thanks man. I just looked and realized they don't work for the 18+ mustangs or maybe vehicles in general. Did something change with the seatbelts in the 18's?
     
  4. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    12,206
    Likes Received:
    6,497
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    This. I love mine. Makes an enormous difference even on the base seats. You can focus on steering and don't have to spend energy holding yourself in position. That also allows you to drive with 'light hands', which helps you be more precise.
     
    Bluemustang and Cardude99 like this.
  5. Dave TBG

    Dave TBG Patiently waiting...

    Vehicle(s):
    '19 EB 201A, '86 Porsche 944
    Joined:
    Jun 10, 2018
    Location:
    New Jersey
    Posts:
    213
    Likes Received:
    68
    0   0   0
    I've used a 6 point G-force in my other car for autocross, a harness bar was needed for installation. Keep in mind that the used of a harness in a car without a roll bar or cage can be dangerous. The likelihood of a rollover at an autocross is insignificant but I would never use the harness on the street or on track. In the event of a rollover without other means of protection, your neck may be whe thing supporting the weight of the car.
     
    Cardude99 likes this.
  6. o-man

    o-man Well-Known Member

    First Name:
    Oscar
    Vehicle(s):
    2015 Ruby Red 50th Anniversary Appearance pkg
    Joined:
    Jan 25, 2018
    Location:
    Durham, NC
    Posts:
    89
    Likes Received:
    54
    0   0   0
    Another satisfied Schroth Quick Fit customer here. I use them for autocross and track days both; they're great, and made a huge difference for me since I didn't realize how much I was "helping" the car by leaning into turns, and sliding around in the seat on hot days.

    Install on the 2018 is tricky because of the smaller seat belt buckles; you'll need a 2017 receptacle and have to replace the one in the back seat to get the Quick Fit to connect properly. Install isn't too bad; there are some helpful YouTube videos out there.

    Posted by another forum member
     
    Cardude99 and BmacIL like this.
  7. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    12,206
    Likes Received:
    6,497
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    I'm not sure how this would be any different than a factory 3 pt...

    FWIW, MotoIQ review in an S197. Install is largely the same (easy) as are the benefits.
    https://motoiq.com/tested-schroth-quick-fit-harnesses/4/
     
    Cardude99 likes this.
  8. Dave TBG

    Dave TBG Patiently waiting...

    Vehicle(s):
    '19 EB 201A, '86 Porsche 944
    Joined:
    Jun 10, 2018
    Location:
    New Jersey
    Posts:
    213
    Likes Received:
    68
    0   0   0
    A 3 point allows you to duck, or be forced, toward the center of the vehicle when the roof suddenly gets significantly lower. A harness keeps your torso in place and, without a roll bar or cage, your head is what keeps the roof in place. It's been a few years, but PCA-NNJR would not let you use a harness on track without a bar or cage, you'd get a reminder at tech inspection if you had a harness.
     
  9. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    12,206
    Likes Received:
    6,497
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    Yeah, though really depends on if the tensioner is loose on the 3 pt.
     
  10. Dave TBG

    Dave TBG Patiently waiting...

    Vehicle(s):
    '19 EB 201A, '86 Porsche 944
    Joined:
    Jun 10, 2018
    Location:
    New Jersey
    Posts:
    213
    Likes Received:
    68
    0   0   0
    That tensioner would need to be pretty tight to restrain the "other" shoulder, no?
     
  11. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    12,206
    Likes Received:
    6,497
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    Yeah I suppose. For an autocrosser this thing is perfect. It has given me a dramatic improvement. Now I just need some recaros to make it even better.
     
  12. Dave TBG

    Dave TBG Patiently waiting...

    Vehicle(s):
    '19 EB 201A, '86 Porsche 944
    Joined:
    Jun 10, 2018
    Location:
    New Jersey
    Posts:
    213
    Likes Received:
    68
    0   0   0
    LOL, I understand completely, I've cranked myself down tight for autocross and it absolutely helped. That was with a nice fitting seat, I'd have to lose quite a few pounds to fit in a Recaro these days.
     
  13. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    12,206
    Likes Received:
    6,497
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    I fit...just not excited about dropping the $1500-2000 on seats...
     
  14. OP
    OP
    Cardude99

    Cardude99 Well-Known Member

    First Name:
    Sam
    Vehicle(s):
    2018 Ecoboost
    Joined:
    Feb 14, 2016
    Location:
    Phoenix, AZ
    Posts:
    1,600
    Likes Received:
    585
    0   0   0
    Good advice, thanks man. Ya I was wondering about that too. I have no intentions for hpde at this time and just wanted to use them for autox since I slide everywhere. I looked at what it takes to throw in a roll bar. Its a little more involved than I am willing to do at this point.
     
  15. OP
    OP
    Cardude99

    Cardude99 Well-Known Member

    First Name:
    Sam
    Vehicle(s):
    2018 Ecoboost
    Joined:
    Feb 14, 2016
    Location:
    Phoenix, AZ
    Posts:
    1,600
    Likes Received:
    585
    0   0   0
    Any links to the 17 buckle? Is it an easy swap?
     
  16. TDC

    TDC Well-Known Member

    Vehicle(s):
    2016 GT350, 2019 Challenger Scat Pack Widebody
    Joined:
    Jan 27, 2015
    Location:
    Long Island
    Posts:
    1,898
    Likes Received:
    995
    0   0   0
    Depending on who you run with a harness may put u in a different class.
     
  17. OP
    OP
    Cardude99

    Cardude99 Well-Known Member

    First Name:
    Sam
    Vehicle(s):
    2018 Ecoboost
    Joined:
    Feb 14, 2016
    Location:
    Phoenix, AZ
    Posts:
    1,600
    Likes Received:
    585
    0   0   0
    I have an ecoboost so I was screwed from day one. I need an intercooler as the stock unit is crap and I'm pretty sure running one automatically puts me in CAM C. Once I saw that I decided to upgrade to what I want and not let a class dictate what I can do. I'm still a novice so it's gonna be years before I'm competitive anyways. Might as well have fun in the interim.
     
    BmacIL likes this.
  18. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    12,206
    Likes Received:
    6,497
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    CAMC is damn fun.
     
  19. suprmario96

    suprmario96 Hi3 Motorsports

    Vehicle(s):
    2015 S550 Mustang GT/6S Oxford White
    Joined:
    Oct 12, 2015
    Location:
    Miami Lakes
    Posts:
    29
    Likes Received:
    7
    0   0   0
    I have a 5-point in my car but I once used a buckle lock device on my 3 point seat belt which worked pretty good as far as keeping me in the seat.

    Here a link:
    https://soloracer.com/cglock.html

    it's also a less expensive route to try out before you commit to a full harness + roll/harness bar etc.
     
    Cardude99 likes this.
  20. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    12,206
    Likes Received:
    6,497
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    I heard this didn't work with our buckles/belts...?
     
    Hack likes this.
Loading...

Share This Page