Front ARB - Saxperience

Mochachino · 12th November 2010, 16:57

Would like some advice, facts etc about what size front ARB to run in relation to the height and spring lb or whether run one at all?

I know thinner front and thicker rear reduce understeer and help with turn in. Most poeple say 24mm rear ARB makes the car handle alot better in their opinion but this is with standard front end. So would a standard rear ARB and no front have the same effect in a way?

Any Facts or expereince is appreciated.

Bickerton · 12th November 2010, 17:27

People with mega hard front suspension have been known to removed the front ARB altogether

jsdvtr · 12th November 2010, 17:31

Ive removed my front arb as was told to so with quite a few people off shed. Was told it reduces bump steer front having high poundage springs.

Bickerton · 12th November 2010, 17:34

Well it stops body roll so if there is none what purpose does it serve?

Mochachino · 12th November 2010, 18:35

Quote:

Originally Posted by Bickerton

People with mega hard front suspension have been known to removed the front ARB altogether

What would you class as megahard? Is the only reason you remove it, is because it is just unneeded with harder springs?

Quote:

Originally Posted by jsdvtr

Ive removed my front arb as was told to so with quite a few people off shed. Was told it reduces bump steer front having high poundage springs.

Did they say why to remove it apart from this bumpsteer, or anything else? Or just "remove it" lol

jsdvtr · 12th November 2010, 18:55

I'll have to read it again on there but know a few people like dannygti, china tom arent running them and think both using around 300lb springs. I know my struts have had the parts on them for the arb modified to reduce bumpsteer.

Mochachino · 12th November 2010, 18:57

Yeh, that was the reason I removed mine, because they had and got advised to do so. I cant remember what the reason why was though. You mean the drop link thing welded on upside down or something so its lower? Cant remember but the Gaz struts have it modified somehow.

16vax · 13th November 2010, 08:38

i run 250lb springs on my ax and im going to remove my arb just to see what its like i also have moved the arb eye on the strut and moved the steering arm on the strut to reduce bumb steer so far i dont get any probs
colin

adamskiTNR · 13th November 2010, 12:21

One of it's main functions is as the car rolls, the compression of one side forces the other side of the bar down. It's an opposite reaction from one side to another. Up one side, down the other. So this forces the inside suspension down, pushing the tyre into the ground. And it's the strength of the springs on this inside suspension that prevent the car from rolling by resisting this very arb movement. So the harder the springs the harder it is for the arb to work, and the less the roll in the first place

axsaxoman · 24th November 2010, 15:09

the bottom line is
all mods to springing+ arb rates at one end of the car are relative to what you have at the other end and how you have set f+r ride heights relative to each other .
and then theres how the driver actually attacks a corner --al thses things will effect what happens and how stable the car feels,so the best advice is decide what you don,t like about the way it handles then look for the solution to that problem .you ca never get ride of understeer totally in a fwd car -- only by making it so tail happy its not a balanced drive

Olly · 24th November 2010, 22:03

I run my car minus the front arb. Im using 350 lbs front springs and 23mm torsion bars.

Tbh, i wouldnt want to go to any lower spring rate as the car does seem to roll quite a bit bordering on lifting the front wheel. Making the most of the camber though.

shows how much my car rolls, thats going around chapman iirc at rockingham.

Mochachino · 26th November 2010, 17:28

Hmmm, think il be refitting an ARB need to find one now. Will test it out without one first.

sexy_gt · 1st December 2010, 20:32

standard vt front bars are 22 but you can fit a smaller one from a 106 xsi. same shape 20mm

you can get uprated bushes from polybush and powerflex to fit too.

Ryan^p · 1st December 2010, 20:39

Quote:

Originally Posted by sexy_gt

standard vt front bars are 22 but you can fit a smaller one from a 106 xsi. same shape 20mm

you can get uprated bushes from polybush and powerflex to fit too.

s1 arbs use a different droplink to the s2.

You can just drill the s1 hole out a bit for the s2 one mind

sexy_gt · 3rd December 2010, 20:01

^^ simple

Dave_P · 24th December 2010, 19:59

I found my 106 horrendous with no front ARB, even with 400lb springs the front just flopped over and the inside rear wheel lifted loads in the air... in the end i fitted a 18mm ARB from a Quiky and the car feels alot more composed.

I've just done the same to a VTS i've recently purchased... although its not running fancy suspension yet.

jsdvtr · 12th January 2011, 19:59

Ive driven the car which doesnt have a arb fitted, although the tracking isnt very good and i need to sort it properly but it seems ok although havent been able to push the car.

Tufty · 12th January 2011, 23:56

Quote:

Originally Posted by Dave_P

I found my 106 horrendous with no front ARB, even with 400lb springs the front just flopped over and the inside rear wheel lifted loads in the air... in the end i fitted a 18mm ARB from a Quiky and the car feels alot more composed.

I've just done the same to a VTS i've recently purchased... although its not running fancy suspension yet.

Not running fancy suspension "yet" lol nice