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Rear ARB decision.
#1156358
14/01/2011 11:37
14/01/2011 11:37
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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right after playng around with my set up on paper and experiences from other coupes ive been in i know that a rear arb makes a world of difference.
i would love to buy the Eibach kit, but jsut cant afford it at this moment in time so my other option is to go for a whiteline rear arm..
looking at which one to go for..
they do a 22mm and a 24mm rear arb.
ive been told by a track lover that a 24mm will make the back end a bit lively...
but what will the 22mm do to the car?
the full spec to be fitted to my car shorty will be.. koni's + Eibach camber bolts (-1 degree) poly bushed front end (lower arms, drop links, front arb 23mm bush's)
i have been thinking about hub spacers but i dont want to put extra pressure on the hubs.
advice needed please!
Marco
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Re: Rear ARB decision.
[Re: ]
#1156369
14/01/2011 11:59
14/01/2011 11:59
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Joined: Dec 2005
Posts: 1,985 In an Audi
Taffy20vt
My life on the forum
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My life on the forum
Joined: Dec 2005
Posts: 1,985
In an Audi
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22mm is a straight fit, the 24mm will need custom brackets making.
I have the 24mm on the back of mine (with D2 rear shocks and springs) and its the single best handling mod I have done.
Ex 432bhp '00 Sprinty 20vt6 '17 S3 Sportback '69 Amazon 131
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Re: Rear ARB decision.
[Re: Taffy20vt]
#1156376
14/01/2011 12:11
14/01/2011 12:11
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jonone
Unregistered
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jonone
Unregistered
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my back end is really stable with the 22mm and i have heavier springs in the rear than the front. you could add a dedra front arb later if you really wanted too.
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Re: Rear ARB decision.
[Re: ]
#1156396
14/01/2011 12:54
14/01/2011 12:54
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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22mm is a straight fit, the 24mm will need custom brackets making.
I have the 24mm on the back of mine (with D2 rear shocks and springs) and its the single best handling mod I have done. my back end is really stable with the 22mm and i have heavier springs in the rear than the front. you could add a dedra front arb later if you really wanted too. ok... so with you both saying the 22mm and 24mm are great.. help...
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Re: Rear ARB decision.
[Re: ]
#1156407
14/01/2011 13:21
14/01/2011 13:21
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Per
Unregistered
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Per
Unregistered
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I'd say; if you have a lot of other de-understeer-mods fitted you'd find even the 22mm giving the car a tad too much oversteer sometimes. But if you still have, say the battery up front, you'd be very ok. But to say the Whiteline 22mm is a "straight fit" is stretching the truth a bit..
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Re: Rear ARB decision.
[Re: ]
#1156411
14/01/2011 13:30
14/01/2011 13:30
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jonone
Unregistered
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jonone
Unregistered
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Depends how you want the car to handle and how track/road orientated you want it to be. The bigger bar will make it understeer less by giving the rear less grip,which you should only really notice pushing hard on track days, I don't think your fully exploit this on the road.( i have not tried the 24mm) Sparco is using the 24mm with std front arb at totb and still getting understeer,which is the nature of the car. as mentioned above you have to get the brackets made up for the 24mm where the 22mm you can use the std brackets. If you go for the 24mm and you dont like the rear bias you can add a dedra front arb to give you amore neutral overall flatter handling car.
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Re: Rear ARB decision.
[Re: ]
#1156438
14/01/2011 14:24
14/01/2011 14:24
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Joined: Dec 2005
Posts: 3,694 Midlands
MCMike
Club member 2095
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Club member 2095
Forum is my job
Joined: Dec 2005
Posts: 3,694
Midlands
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I have Dedra front ARB & whiteline 22mm rear ARB, the car is pretty neutral. Very happy with my setup.
1972 Triumph Stag 1984 Alfasud TI 1999 Fiat Coupe Turbo LE 2005 350Z
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Re: Rear ARB decision.
[Re: ]
#1156444
14/01/2011 14:31
14/01/2011 14:31
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Wilu
Unregistered
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Wilu
Unregistered
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Marco this is really good question!
I have almost the same setup Koni & Eibach Pro Kit and have no idea which ARB is the best for Coupe.
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Re: Rear ARB decision.
[Re: ]
#1156475
14/01/2011 15:27
14/01/2011 15:27
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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i want to be able to drive the car to its limits... of course the coupe is know for its understeer...
i want to keep the front arb the way it is..
i cant find a deda front arb for love nor money.
i may just go for the 22mm rear, it seems to be a well balance set up.. i dont want to put a 24mm on the rear then have to change the front to a dedra arb to keep it in line!
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Re: Rear ARB decision.
[Re: ]
#1156478
14/01/2011 15:33
14/01/2011 15:33
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Joined: Dec 2005
Posts: 12,296 Sandhurst
Begbie
Ex El Presidente
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Ex El Presidente
I AM a Coop
Joined: Dec 2005
Posts: 12,296
Sandhurst
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i cant find a deda front arb for love nor money. There is one for sale currently in parts for sale
Your car is Usain Bolt with wellies
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Re: Rear ARB decision.
[Re: Begbie]
#1156482
14/01/2011 15:38
14/01/2011 15:38
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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think thats sold mate.. plus i cant be arsed to change it!
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Re: Rear ARB decision.
[Re: ]
#1156485
14/01/2011 15:47
14/01/2011 15:47
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proccy
Unregistered
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proccy
Unregistered
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my back end is really stable with the 22mm and i have heavier springs in the rear than the front. you could add a dedra front arb later if you really wanted too. that's my set up, but incudes Nigel's front lower brace and the standard Plus brace....i have a lot of difficulty pushing it out of line, and like taffy i'd say the whiteline rear arb made the most noticeable difference
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Re: Rear ARB decision.
[Re: ]
#1156486
14/01/2011 15:49
14/01/2011 15:49
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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i have a lot of difficulty pushing one out.... think i need some lax to soften it up abit..
you sick man..
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Re: Rear ARB decision.
[Re: ]
#1156489
14/01/2011 15:52
14/01/2011 15:52
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proccy
Unregistered
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proccy
Unregistered
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i have a lot of difficulty pushing one out.... think i need some lax to soften it up abit..
you sick man.. Me sick?????
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Re: Rear ARB decision.
[Re: ]
#1156505
14/01/2011 16:26
14/01/2011 16:26
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Joined: Dec 2005
Posts: 17,369 Staffordshire
Nigel
Forum veteran
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Forum veteran
Joined: Dec 2005
Posts: 17,369
Staffordshire
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There's a simple answer.... A Novitec 23mm rear ARB That's what I have, although I can't remember the last time I heard of one for sale Personally, I'd go for the 24mm and then use other measures to control the onset of oversteer. I actually don't think the 24mm will eradicate understeer, especially on power, but it will make the rear end move around when you lift off mid bend. Simple tracking and camber settings will make it all stable again though
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Re: Rear ARB decision.
[Re: coupedummy]
#1156612
14/01/2011 20:44
14/01/2011 20:44
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Joined: Feb 2007
Posts: 3,486 London Tan
technics
I need some sleep
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I need some sleep
Joined: Feb 2007
Posts: 3,486
London Tan
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Im up for a 22mm whiteline rear ARB.
Now in the 400+ bhp club!
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Re: Rear ARB decision.
[Re: coupedummy]
#1156629
14/01/2011 21:34
14/01/2011 21:34
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proccy
Unregistered
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proccy
Unregistered
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Could poll for a group buy via balancemotorsport? as a comparison i paid £125 for mine
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Re: Rear ARB decision.
[Re: coupedummy]
#1156811
15/01/2011 12:09
15/01/2011 12:09
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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There around £115 from balance motor sport!
Can you do the polling in the GB section so we can keep this on track!
@ Nigel, say I go for the 24mm arb, what other things could I adjust to get things moving correctly?
Tracking - easily sorted.. Camber - ?? What setting do you think will work? -1 degree?? Or more?
Take in mind it will still be my daily driver and I would like a set if tyres to last!!!
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Re: Rear ARB decision.
[Re: ]
#1156832
15/01/2011 13:07
15/01/2011 13:07
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Per
Unregistered
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Per
Unregistered
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For street/occasional track: camber -1.5deg, I think -1 is std (on std ride height).
edit: thanks Nigel, -0.5deg std camber.
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Re: Rear ARB decision.
[Re: ]
#1156844
15/01/2011 13:25
15/01/2011 13:25
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proccy
Unregistered
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proccy
Unregistered
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also if you go for the 24mm one there's a bit of firtling about trying to get them to fit, whereas the 22mm is i believe a straight fit (pretty much)
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Re: Rear ARB decision.
[Re: ]
#1156862
15/01/2011 14:20
15/01/2011 14:20
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suba
Unregistered
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suba
Unregistered
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Marco - go for the following:
22mm arb - it's easier to fit, and will do the job fine. Also you do not have the stiffest suspension in the world, so you dont want the back too solid.
for a daily driver go for -1.1 or 1.2 degrees on the front, and also go for half a degree of toe-out.
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Re: Rear ARB decision.
[Re: ]
#1156868
15/01/2011 14:32
15/01/2011 14:32
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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Right before I go crazy, I'm buying a 22mm front arb.
Now tge front arb, I'm right in saying it's 23mm yer?
What size is the dedra front arb??
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Re: Rear ARB decision.
[Re: ]
#1156880
15/01/2011 15:13
15/01/2011 15:13
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jonone
Unregistered
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jonone
Unregistered
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The 22mm is much easier to fit, and does not do any nasty to things to the handling, I have a brand new Dedra front arb collecting dust in my garage,I might sell at some point! (depends on what poundage springs i end up with) I think its 25mm + like suba said 1.0-1.2 neg camber,but i dont like toe out personally,I would keep the std 2mm total toe in.( try it and see)
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Re: Rear ARB decision.
[Re: ]
#1157016
15/01/2011 23:32
15/01/2011 23:32
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suba
Unregistered
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suba
Unregistered
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The toe out really helps turn in.
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Re: Rear ARB decision.
[Re: ]
#1157019
15/01/2011 23:42
15/01/2011 23:42
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jonone
Unregistered
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jonone
Unregistered
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but it makes it less stable,and i don't feel my car needs to turn in any quicker! But like i said its personal,so Marco should try both.
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Re: Rear ARB decision.
[Re: ]
#1157077
16/01/2011 03:34
16/01/2011 03:34
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suba
Unregistered
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suba
Unregistered
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If you want a stable road car then there is no point stiffening the rear end to make it move about rather than understeer!
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