Autocross STH Class thread!

  1. Xtelotatichl

    Xtelotatichl Senior Member

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    So with my current mods, I fall into the STH class. They are...

    CAI
    Stage 1 tune Vit style
    Type R RSS
    Front strut brace

    This past weekend I finally got around to installing my underbody W brace...so the question now is...does that take me out of the STH class?

    See the pic for reference.
    8026F757-A48C-4626-85DE-5646FFEE2EC8.jpeg
     
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  2. 5inn

    5inn Senior Member

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    Correct, I believe these are not legal in STH. I'm not sure what class they are legal in.
     
  3. OP
    Xtelotatichl

    Xtelotatichl Senior Member

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    I still ran in STH class. Didn’t cause a fuss because I’m still new to all this and I have crap for tires so I’m nowhere near being a threat to the fastest people in the class
     
  4. OP
    Xtelotatichl

    Xtelotatichl Senior Member

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    Link to my fastest run of the day. I need better tires and camber
     
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  5. Pumpkinking85

    Pumpkinking85 Member

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    I'll be in sth this year. I can't seem to find, or at least decipher the rules about exhaust wrap in sth. Is it allowed or no? I figured I'd ask here instead of opening up a new thread
     
  6. OP
    Xtelotatichl

    Xtelotatichl Senior Member

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    Exhaust wrap? I know catback exhaust is allowed. What are you referring to exactly
     
  7. burglar

    burglar Member

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    "Alternate unit" in this can can be one with header wrap on it. Just mind section E with the catalytic converter rules.
     
  8. burglar

    burglar Member

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    Also yes, since that brace pictured ties the subframe to the chassis, it's not allowed in STH.

    One that went from the A-arm mount to A-arm mount only would be legal, though.
     
  9. Pumpkinking85

    Pumpkinking85 Member

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    Thanks I couldn't really decipher the rules about the wrap, and I know if it doesn't specifically say it can be added then it's not allowed. I'll be running stock cat but I wanted to put a turbo blanket on and exhaust wrap the stock cat and downpipe. I also track the car and wanted to tame under hood heat a bit but wasn't sure if it would bump me out of sth.
     
  10. RiceFingaz

    RiceFingaz Senior Member

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    My 2nd event ever ran STH at National Tour at Crow's. Definitely had to de mod the car just to make it in STH.
    I need more seat time... I was slow AF compared to Ford RS and such.

    IMG_20190428_085132_556.jpg
     
  11. Burt

    Burt Member

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    When I have the time/money to start modding the Civic, I'll be tempted to pass HS and jump straight into STH. I know they're an older compound and not as quick, size for size as the RE71 and Rivals, but has anybody compared a 255 of either of those to a 275 Toyo R1R on these cars? Sticking with 17s and doing a 275/245 reverse stagger seems like it would be awesome if it fits/is faster than a 255 based setup
     
  12. burglar

    burglar Member

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    265 is max tire width, 9" is max wheel width for STH (2wd). Always take compound over size, I wouldn't waste time with the Toyo if there was any expectation of being competitive.

    Also, only the Si (17-18) is currently listed in STH. The catch-all lets in all non-Type R 10th gen Civics for local events, but it must be explicitly listed for national competition, so write your letter. I don't see any good reason to keep any HS based 10th Gen out.
     
  13. snguyen130

    snguyen130 MudkipxGen

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    I was wondering if a Sport Hatchback with a Greddy Exhaust and KTuner will be placed in STH?
     
  14. SlowAP2

    SlowAP2 Member

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    Locally yes. But as Burgler said, it needs to be listed as its own line for national events
     
  15. RiceFingaz

    RiceFingaz Senior Member

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    I raced in Tour in STH.
    But locally I chose to race up a class in SMF.
     
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