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  1. #26
    6,000rpm (Max Torque) PizzaBoy's Avatar
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    Re: V8 touring car slicks on a civic

    Quote Originally Posted by timmiblc View Post
    You going to be at NIMM this year Adrian?
    Hopefully, depends on what else is on around that time
    94 S14 200SX with an alcohol problem

  2. #27
    6,000rpm (Max Torque) K20a EG Civic's Avatar
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    Re: V8 touring car slicks on a civic

    Quote Originally Posted by F20C CRX DEL SOL View Post
    fiasco, the winning 1600 ss2000 car for the last few years has similar width tyres and is way lighter than most hondas, the outright winning ss2000 car from the previous two years was also on similar width tyres. Would you suggest they downsize??

    Fairly sure they had heat in the tyres last time I saw them

    Both rear drivers, but still food for thought
    Rick - the dark blue/black Datsun 1200 coupe is on 13's
    Tony - the orange Datsun 1600 is on 15's (used to be on 13's also)

    In both cases they went wide because you couldn't go bigger in bead size, with a 17 you have a bigger "arch of contact" over a 15 (and more so a 13) so you have more rubber on the ground before you think about width.

    BTCC & WTCC run 19's and 20's (some may even be bigger) for "arch of contact" then go wide.

    Its all about the size of your "contact foot print" ...

    Careful Ant, you can over tyre a car ... perhaps go 19's rather than wider
    SS2000 / Honda Challenge - EG Civic #8

  3. #28
    3,000rpm (Grandma Drag) F20C CRX DEL SOL's Avatar
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    Re: V8 touring car slicks on a civic

    Quote Originally Posted by B16B EG Civic View Post
    Rick - the dark blue/black Datsun 1200 coupe is on 13's
    Tony - the orange Datsun 1600 is on 15's (used to be on 13's also)

    In both cases they went wide because you couldn't go bigger in bead size, with a 17 you have a bigger "arch of contact" over a 15 (and more so a 13) so you have more rubber on the ground before you think about width.

    BTCC & WTCC run 19's and 20's (some may even be bigger) for "arch of contact" then go wide.

    Its all about the size of your "contact foot print" ...

    Careful Ant, you can over tyre a car ... perhaps go 19's rather than wider
    Good info there Brent, stop keeping all these secrets from us

    Will be interesting to see how AJbrown goes with his 250+ wide front tyres. Some actual temp gun readings accross the front tyres would be very interesting.

    Surely if you get temperature in them they should work??

  4. #29
    8,000rpm (B Series Redline!) timmiblc's Avatar
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    Re: V8 touring car slicks on a civic

    What kind of spec is his car? And how big are the front wheels? ???x9?
    MOTUL HONDA CUP
    GEAR-X EK9 #88 - Manfield 1:20.0 first race meet at the circuit!

  5. #30
    6,000rpm (Max Torque) K20a EG Civic's Avatar
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    Re: V8 touring car slicks on a civic

    The silverstones I ran were a 24/61R17 in a medium compound and they worked good (shame they no longer supply them)

    They are sold as being the same as a 240/610R17

    ---
    Added at 09:41 PM, Previous post was at 09:35 PM
    ---


    Quote Originally Posted by timmiblc View Post
    What kind of spec is his car? And how big are the front wheels? ???x9?
    My pic is a Turbo Civic running in "Kumho Sport Salons" a SI based race series. Guessing at a 17x8.5 or 9
    SS2000 / Honda Challenge - EG Civic #8

  6. #31
    7,000rpm (Peak Power) theonlysteve's Avatar
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    Re: V8 touring car slicks on a civic

    Quote Originally Posted by B16B EG Civic View Post
    My pic is a Turbo Civic running in "Kumho Sport Salons" a SI based race series.
    Bingo

    Also... semi-related... was one reason the BTCC used the 18 and 19" because they used dual calipers and massive rotors?

  7. #32
    700rpm (Idle) AJbrwn's Avatar
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    Re: V8 touring car slicks on a civic

    yep the civic is B18c turbo. the engine/turbo is very similar spec to bruces(turboteg). we are hoping for around 400hp atw once tuned. we were running 15" kumhos, 225 on the front & 205s on the rear when it was approx 310hp atw, but have since changed to brembo brakes. so need to run 17"s. the widest we can go for the class is 255s so will probably run with them on the front with a 9" rim & 235s on the rear. getting heat into thems not a problem. the weight on our front wheels is very similar to the weight on the rear of a NZ V8, but our fronts have to do alot more work ie turn,brake,accelerate

  8. #33
    4,000rpm (Taxi Drag) fiasco's Avatar
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    Re: V8 touring car slicks on a civic

    Quote Originally Posted by B16B EG Civic View Post
    Rick - the dark blue/black Datsun 1200 coupe is on 13's
    Tony - the orange Datsun 1600 is on 15's (used to be on 13's also)

    In both cases they went wide because you couldn't go bigger in bead size, with a 17 you have a bigger "arch of contact" over a 15 (and more so a 13) so you have more rubber on the ground before you think about width.

    BTCC & WTCC run 19's and 20's (some may even be bigger) for "arch of contact" then go wide.

    Its all about the size of your "contact foot print" ...

    Careful Ant, you can over tyre a car ... perhaps go 19's rather than wider
    Eggzackery.
    Think with a smaller tyre the point of contact comes around quicker so it in theory gets heated more times in relation to speed.
    Its a really tricky concept and not one I understand fully.
    BT and others with years of experince are far more schooled than me on this topic but NZV8 slicks imo wouldn't be right.
    They're built for weight, suspension requirements/ setup, Power, drive layout etc.
    I.e application specific by Dunlop.

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