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Thread: uprating a f23 box for over 300bhp

  
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    Birchy*GSI*'s Avatar
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    uprating a f23 box for over 300bhp

    rite guys jst dne my 2nd box in
    (wont go into gears at hight revs) jst been on the fone to peeps who repairs them and they said they can do it but it prob end uo bk the same in a while with all the stick i give it lol
    they asked me 2 find out for uprated parts or kits for it to take all the power the car has over 300b and 350 t
    any clues
    Astra gsi turbo Black = z20leh forged courtenay sport stage 4 with there uprated clutch,lightened flywheel 3ch exhaust = very happy bhp

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    smarty-turbo's Avatar
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    dog box fella is the only way and £2500 from america

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    In the same boat, i know how you feel

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    smarty ait got that kind of cash lol9but where about u find them they may do kits for mind see)

    hopin that Quaife does uprated kits or sumfink lik that
    Astra gsi turbo Black = z20leh forged courtenay sport stage 4 with there uprated clutch,lightened flywheel 3ch exhaust = very happy bhp

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    Quote Originally Posted by Birchy*GSI* View Post
    rite guys jst dne my 2nd box in
    (wont go into gears at hight revs) jst been on the fone to peeps who repairs them and they said they can do it but it prob end uo bk the same in a while with all the stick i give it lol
    they asked me 2 find out for uprated parts or kits for it to take all the power the car has over 300b and 350 t
    any clues
    drive it more sensible..simple

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    simply to much power for f23 in standard form

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    any clues for uprate the damm thing then
    dont fancy changin to the m32 6 speed as i hav an uprated clutch and flywheel for the f23 see
    Astra gsi turbo Black = z20leh forged courtenay sport stage 4 with there uprated clutch,lightened flywheel 3ch exhaust = very happy bhp

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    pm mr ateeur rehman,he's had lots of issue's getting his f23 to stay together,i'm sure he will be glad too help...

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    I dont understand why the boxes are causing problems, the f23 thats in my car has coped with 480 bhp 460 ft/lb for 6k miles and 360 bhp 390 ft/lb for over 7k and it only gets abused. Ive also built 2 other astra G`s and a zaff GSI`s with f23 boxes making over 400 bhp and they are still on the same f23 boxes. The guys in Greece are still using f23`s with 600 bhp....

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    i cant see how the problems are occurring if you got uprated clutch and flys

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