User Tag List

+ Reply to Thread
Results 1 to 29 of 29

Thread: cos diff's n boxes at 400+bhp

  1. #1
    Spanner Monkey Twisted's Avatar

    Join Date
    Jan 2003
    Location
    Wales
    Posts
    160
    Thanks
    0
    Thanked 0 Times in 0 Posts

    cos diff\'s n boxes at 400+bhp

    the engines out and the rebuild is well underway for some decent power but will i have trouble with standard diffs n box on my 4x4 sapp cos

    cheers

  2. #2
    Part of the furniture Decade Plus User Hugh's Avatar

    Join Date
    Feb 2002
    Location
    Coventry
    Posts
    0
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    I'm interested in this one, what are the requirements / options at the various power levels on a 2wd cos as well please?

  3. #3
    Part of the furniture Decade Plus User Hugh's Avatar

    Join Date
    Feb 2002
    Location
    Coventry
    Posts
    0
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    Come on Wes, it's been four minutes already!

  4. #4
    Pole Position Decade Plus User Ferg's Avatar

    Join Date
    Feb 2002
    Location
    Auld Reekie
    Posts
    937
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp

    Thought the best option diff wise was the Quaif ATB diff internals for around 700 bucks. Just from memory, nothing defo..


    But Wes is definately the man for this question...

  5. #5
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    2wd:

    upto 400-ish bhp standard box + diff should be fine
    over 400 then rear diff may require attention, cwp tends to be the major problem. Gearbox options, well i think the Tremec gearbox is the way to go.

    4wd:
    upto 350 ish bhp standard should be ok, depends how you drive it!

    over 400 bhp, gearbox is a major problem, R+D gearbox or quaife, take your pick but expensive! Diffs, quaife ATB front + rear is what i use, centre diff is very tough so leave alone.

    Also the front o/s driveshaft (only if lowered more than 25mm) can cause probs. Competition engine mounts a must at this power level

  6. #6
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    Come on Wes, it's been four minutes already!
    Shut it MR PERFECT, some of us have to actually work when we are at work

  7. #7
    Part of the furniture Decade Plus User Hugh's Avatar

    Join Date
    Feb 2002
    Location
    Coventry
    Posts
    0
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    some of us have to actually work when we are at work
    So do I, just so happens I'm off ill

    Corr, you really are a picky so n so

  8. #8
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    well i'm in pain but i'm still at work......

  9. #9
    Part of the furniture Decade Plus User Hugh's Avatar

    Join Date
    Feb 2002
    Location
    Coventry
    Posts
    0
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    cwp tends to be the major problem.
    What's that then?

    Gearbox options, well i think the Tremec gearbox is the way to go.
    Where do I find out about that? (Just curious)

  10. #10
    Spanner Monkey Twisted's Avatar

    Join Date
    Jan 2003
    Location
    Wales
    Posts
    160
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp

    mines a 4x4 so looks like i got plenty to change.
    whos best to contact for engine mounts box n'diffs

    cheers

  11. #11
    Part of the furniture Decade Plus User Hugh's Avatar

    Join Date
    Feb 2002
    Location
    Coventry
    Posts
    0
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    Shouldn't that be "well i'm a pain but i'm still at work......"

    Seriously, wassup chap?

    I've got a virus, which is manifesting itself as a flu/cold with regular sessions. Nice.

  12. #12
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    cwp tends to be the major problem.
    What's that then?
    CROWN WHEEL + PINION

    Gearbox options, well i think the Tremec gearbox is the way to go.
    Where do I find out about that? (Just curious)


    [/QUOTE]

    Clint posted a link to the Tremec website sometime ago, but i have no idea what the address is. Rod Tarry uses a Tremec gearkit in his 500+ BHP saff so i think it will be tough enough for most


  13. #13
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    Vibra technics engine mounts available from Burtons.

    Quaife diffs, can get them from Burtons, but you can send your diffs to quaife and they will fit the ATB's for you.

  14. #14
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    Shouldn't that be "well i'm a pain but i'm still at work......"

    Seriously, wassup chap?

    I've got a virus, which is manifesting itself as a flu/cold with regular sessions. Nice.
    Well, last monday (31 march, my birthday) I was riding to work and some silly bitch in a volovo estate pulled out infront of me, i did some air swimming and landed on my back, in hospital for a few hours being x-rayed, but nothing broken, my laptop stoped me getting any broken ribs, but i've got loads of internal brusing, it wasn't so bad last week but now it really hurts Motorbike is gonna be a write off i reckon, and now the weather is getting better i'm stuck with getting the tube to work until it all gets sorted out, double

  15. #15
    Part of the furniture Decade Plus User Hugh's Avatar

    Join Date
    Feb 2002
    Location
    Coventry
    Posts
    0
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    Feck me mate! On your birthday as well

    Hope you get well soon mate. I'm just glad things aren't worse.

  16. #16
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    i'll live, i hope, but the bike is on death row, has made me think about getting another one though, i really was only doing 30 mph at the time, i was lucky

  17. #17
    Part of the furniture Decade Plus User Hugh's Avatar

    Join Date
    Feb 2002
    Location
    Coventry
    Posts
    0
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    And there's me looking at getting one next year

  18. #18
    Spanner Monkey Twisted's Avatar

    Join Date
    Jan 2003
    Location
    Wales
    Posts
    160
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp

    i got hit by a metro. Only had my bike 6 weeks GSXR 750, not sure if i'll ever have another. Too much traffic for them to be safe now

  19. #19
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    i have a gsxr 750 too (SRAD type), silly really i've done some really serious speeds on it and then i get knocked off doing sensible stuff, thats what made me think about it, if that had happened at higher speeds i may not be here now

  20. #20
    Spanner Monkey Twisted's Avatar

    Join Date
    Jan 2003
    Location
    Wales
    Posts
    160
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp

    i had the same bought it new in 1998 S reg, awsome, was black red and silver

  21. #21
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    mine was purple / grey, click here to see some pics pre smash....

  22. #22
    Racer Decade Plus User

    Join Date
    Mar 2002
    Location
    earth
    Age
    44
    Posts
    919
    Thanks
    1
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    We have just picked up a nice Quaife big tooth Group N box for my Dads....will worry about the diffs when they break!

  23. #23
    Spanner Monkey Twisted's Avatar

    Join Date
    Jan 2003
    Location
    Wales
    Posts
    160
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp

    Wes - yep same model as mine, Mental thing.

    Whats the cost of a decent box that'll take a few track days?

    cheers

  24. #24
    TS Supporter Decade Plus User

    Join Date
    Jan 2002
    Location
    Quadrant 6
    Age
    46
    Posts
    1,218
    Thanks
    0
    Thanked 3 Times in 2 Posts

    Re: cos diff\'s n boxes at 400+bhp

    £2.5k from R+D all up, thats for one of their uprated gearkits, standard ratios, not straight cut but cut more than helical gears, does whine in all gears apart from 4th (direct drive gear) but it sound well cool

  25. #25
    Racer Decade Plus User

    Join Date
    Mar 2002
    Location
    earth
    Age
    44
    Posts
    919
    Thanks
    1
    Thanked 1 Time in 1 Post

    Re: cos diff\'s n boxes at 400+bhp

    Got the Quaife for 2K!

  26. #26
    Spanner Monkey Twisted's Avatar

    Join Date
    Jan 2003
    Location
    Wales
    Posts
    160
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp

    cheers

  27. #27
    Bodger

    Join Date
    Jan 2003
    Posts
    91
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp

    It all comes down to driving behaviour..simple as that....4x4 is for girls,thats why everything is so fragile..ROFL.

  28. #28
    Spanner Monkey Twisted's Avatar

    Join Date
    Jan 2003
    Location
    Wales
    Posts
    160
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: cos diff\'s n boxes at 400+bhp


  29. #29
    Management Team Decade Plus User
    Turbosport Subscriber
    Turbosport Moderator
    Clint's Avatar
    My Race Car
    My 1st Project
    My 2nd Project
    My 3rd Project
    Join Date
    Jul 2001
    Location
    Sevenoaks, Kent, United Kingdom
    Age
    54
    Posts
    933,289
    Thanks
    59
    Thanked 279 Times in 179 Posts

    Re: cos diff\'s n boxes at 400+bhp

    I have opted for an uprated Diff and a Tremec gearbox for my 3 Door

+ Reply to Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts