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Anti-rollbars for your Altezza

Posted: Sun Mar 04, 2007 1:07 pm
by Dan
Some useful info i found about ARB's on the AltezzaClub Nz:


ARB's are the spring steel bars that connect across from wheel to wheel. They are mounted on the chassis across the car also, both at the front bar and the rear. They allow both left & right hand suspension to move up and down together without having any effect. Hence they do not disturb the normal spring rates or make the ride stiffer.

However when the car rolls as it goes around a corner, the anti-roll bar pits the inside wheel going down the suspension arm against the outside wheel going upwards, and tries to hold the car flat. If you have massive sways, the inside wheel will be lifted off the ground and the sway have no more effect.

Surprisingly, the bigger the sway, the less grip the car has on those wheels. So a big front sway bar means more understeer, which is why the manufacturers run them like that! That's why some people only changed the rear, because they like a car that does not understeer.

You can buy after-market stiffer sways, usually rated by their thickness and the % greater stiffness over stock. Two factors affect stiffness, the diameter/type of steel, and the distance from the pivot point to the mounting eye. Most manufacturers use % stiffer over stock.

TTE red Front 28mm diam, effective lever arm 225mm
TTE red Rear 17mm diam, ELA 90, 105, 120mm (adjustable with three holes)

EIBACH are re-badged TTE & have the same specs as above.

TRD Sportivo Blue front 28.6mm
TRD Sportivo Blue rear 16.0mm

TRD Yellow Front 30mm +49%
TRD Yellow Rear 19.1mm +99%

CUSCO Front 30mm +140%
CUSCO Rear 16mm +125%

L-TUNED Front +49%
L-TUNED Rear +99%

HOTCHKISS Front 32mm +56% & +61%
HOTCHKISS Rear 19mm +144% & +227%

TANABE Sustec Front 30.4mm
TANABE Sustec Rear 18mm

HKS Front +130%
HKS Rear +116%

ARC Links Front +216%
ARC Links Rear +146%

Posted: Thu May 03, 2007 6:37 pm
by Tezzy
Which uprated ARB did you get Dan? Did you notice much difference?

Posted: Thu May 03, 2007 9:41 pm
by Dan
None havent started on the handling of mine yet! TRD ones are recommended by a few people

Posted: Wed Jun 13, 2007 8:15 am
by acro
my bro has the eibach and they do wonders car now doesnt lean during corners

Posted: Wed Jun 13, 2007 4:24 pm
by lee_iceman
Think my TRD yellows are perfect for road use, and excellent for track use :) They are a good compromise. If you wanted it a lot stiffer then Chassis Braces would be the way to go but you'd lose a lot on hte ride quality.

Posted: Mon Aug 13, 2007 1:50 am
by greeneyes
Gosh that's good info Dan... :D

I fitted the Cusco rear only, and it made a great improvement! As the only mod at the time it was the best bang for buck I have done. It removed any understeer and gave a sharp crisp turn-in.

Of course after that I could feel the roll of the tyres in the front and the flex in the body.. so it was followed by strut bars, lowering kit, stiff shocks....

Posted: Mon Aug 13, 2007 3:06 pm
by Noel
greeneyes wrote:Gosh that's good info Dan...


i did warn you that the "lads" had borrowed alot of info from other sites... :roll:


I think Dan should put a foot note at the bottom giving credit to owner? ( now that he's arrived....) :twisted:

Posted: Mon Aug 13, 2007 3:40 pm
by Dan
I thought i did!! :oops: My bad! its updated now :P Still waiting to find out the spec of the TRD blue ARB's if anyone knows, let me know

Posted: Thu Aug 16, 2007 11:48 pm
by Noel
TTE red Front 28mm diam, effective lever arm 225mm
TTE red Rear 17mm diam, ELA 90, 105, 120mm (adjustable with three holes)

EIBACH are re-badged TTE & have the same specs as above.


Greeneyes ... the above info i have a question do you really mean that EIBACH get their sways from TTE or should it read that EIBACH actually make the bars and TTE rebadge them ??? :roll:

thinking about just upgrading the rear like you have as the front is ok really...

Re: Anti-rollbars for your Altezza

Posted: Sat Sep 26, 2009 3:56 pm
by williek
anyone know where i get rear d bushes, she failed nct

Re: Anti-rollbars for your Altezza

Posted: Sat Sep 26, 2009 10:13 pm
by Rob
williek wrote:anyone know where i get rear d bushes, she failed nct


Factory ARB bushes you can get from Toyota. If they are aftermarket it will depend on the manufacturer. I have Cusco and had to give up on trying to get their own ones, I talked to retailers and distributors all over the place and even Cusco themselves and they all insisted they were the same as factory. They can't be, the bar is a much bigger diameter. In the end I got as close a fit I can with generic bushes and drilled the bracket to fit.

Re: Anti-rollbars for your Altezza

Posted: Wed Oct 13, 2010 9:47 pm
by raffo
What diameter are the stock ARB's? Are they the same as an IS200? I found some which say they replace factory one's for both IS200/300 but want to double check. I thought the rear bar was 16mm but this only gives the option of 14mm or 15mm

Re: Anti-rollbars for your Altezza

Posted: Sun Nov 21, 2010 11:12 pm
by E910
Bit of a late reply but I think the rear OE SXE10 bar is 15mm. I have installed a Cusco 16mm in mine & it fitted up fine with OE bushes.

Re: Anti-rollbars for your Altezza

Posted: Wed Dec 15, 2010 9:05 pm
by t_sport190
E910 wrote:Bit of a late reply but I think the rear OE SXE10 bar is 15mm. I have installed a Cusco 16mm in mine & it fitted up fine with OE bushes.


Rob wrote:
williek wrote:anyone know where i get rear d bushes, she failed nct


Factory ARB bushes you can get from Toyota. If they are aftermarket it will depend on the manufacturer. I have Cusco and had to give up on trying to get their own ones, I talked to retailers and distributors all over the place and even Cusco themselves and they all insisted they were the same as factory. They can't be, the bar is a much bigger diameter. In the end I got as close a fit I can with generic bushes and drilled the bracket to fit.


I had this problem on my old Altezza when i bought a cusco rear anti roll bar years ago & the garage couldnt get the oem bushes to fit due to diameter of it, i sold the anti roll bar as i was selling the car up..

Re: Anti-rollbars for your Altezza

Posted: Wed Dec 15, 2010 11:10 pm
by raffo
Got my front and rear bushings from PRI Racing Ltd - http://www.priracing.com/section.php/29 ... 00---is300

Perfect fit and should last a decent while too as they're polyurethane instead of rubber.