Group A 25.7mm ARB

  1. Established Member Joined: Jul 2009 Aberdeen Posts: 2211
    #1
    Right guys, changing rear dampers to group n's, ill be running a standard Torsion bar

    As i know, ive been told its understeery as fuck on the normal Torsion bar, but ive done further reading and ive been told bigger anti-roll-bars will reduce this on the standard torsion bar

    People have said if you run a 24mm arb from a 106 gti it will be fine, but ive found a dealer who does Group A 25.7mm rear ARB's (this is as big as they can go before you have to modify the rear for a bigger arb)

    Does anyone know if this will make it much better? and reduce the understeer or eliminate it completely?

    i will be upgrading the rear torsion bar but unsure what one, im thinking of 21mm as thats what group n specs are designed for - but it probly wont be for another month or 2.
  2. Saxperience Forum Bum Joined: Feb 2007 Nuneaton Posts: 3554 EP3 Civic
    #2
    Where are you buying this "Group A" ARB from then?

    I would just go for a 24mm bar from a descent company or even just one from a 106 GTI.
    The other will not be Group A, they have properly never been used on any form of rally car and have no reason to be called group a.
  3. Saxperience Hardcore! Joined: Nov 2007 Guantanamo Bay Posts: 28700 oyster card
    #3
    You can get 27mm aswell, thats quite sharp!!

    Id just got for the 24mm aswell expecially at the price difference.
  4. Established Member Joined: Aug 2007 Tunbridge Wells Posts: 1465 Furio 1.4 2002
    #4
    no point getting bigger than 24mm imo, you can buy them new here 106 parts
  5. Established Member Joined: Jul 2009 Aberdeen Posts: 2211
    #5
    Spoox Motorsport are selling them, Kam racing also do 25mm group A ARB's but kam are asking £250 for theirs, whilst spoox are asking for £200 posted, spoox say they devoloped theirs for a 106 rally car of their own.

    1" could make a big difference? (glad shes not saying that :O)
  6. Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R
    #6
    I wouldn't go too big as you'll end up with the rear getting a bit 'skitish'.

    For the price of them, I'd go with a 24mm one for now - see how it handles and what the balance feels like and then can go larger on the ARB or smaller to tune it's characteristics.

    Depends on what sort of driving the car will see tbh
  7. Established Member Joined: Jul 2009 Aberdeen Posts: 2211
    #7
    How do you mean skitish?
  8. Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R
    #8
    does that work (bring up definitions):

    http://www.google.co.uk/search?hl=en...ittish&spell=1

    I feel that a larger ARB would make the rear 'feel' more level on cornering, but then when it lost grip it'd step out quickly. This is just my impression if you were to fit a larger rear arb.

    It is dependent on the dampers and torsion bars you're running though too - so is hard to say how a 26mm arb would handle as there's so many combination of setups.

    Ultimately I'm going to be running bilstein group n shocks, 21mm bars with 24mm Arb - from reading you fit different width arb's to fine tune how the car handles.

    If you're not using the car on the track A LOT then i wouldn't consider a 26mm arb
  9. Established Member Joined: Jul 2009 Aberdeen Posts: 2211
    #9
    Quote:
    Originally Posted by raunchz View Post
    does that work (bring up definitions):

    http://www.google.co.uk/search?hl=en...ittish&spell=1

    I feel that a larger ARB would make the rear 'feel' more level on cornering, but then when it lost grip it'd step out quickly. This is just my impression if you were to fit a larger rear arb.

    It is dependent on the dampers and torsion bars you're running though too - so is hard to say how a 26mm arb would handle as there's so many combination of setups.

    Ultimately I'm going to be running bilstein group n shocks, 21mm bars with 24mm Arb - from reading you fit different width arb's to fine tune how the car handles.

    If you're not using the car on the track A LOT then i wouldn't consider a 26mm arb
    Cheers for that

    it might be going as a track car, unsure yet of her fate.
  10. Saxperience Forum Bum Joined: Feb 2007 Nuneaton Posts: 3554 EP3 Civic
    #10
    Do not buy a Group A from spoox. Over kill, stupid price. Buy a 24 from pug
  11. Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5
    #11
    buy direct from pug.

    personally go 24mm

    I ran the group N Bilsteins all round
    200lb front springs and 21mm psf torsion bars and psf 24mm arb.

    Pretty good setup tbh