08-05-2005, 12:57 AM
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Alfasud/Sprint/33 bigger antiroll bar?
Despite the fact my Alfasud has stiffer springs and Koni yellows all round, I still find there is a little bit too much body roll. Does anyone know of a source for a larger diameter/stiffer antiroll bar? Secondhand or new, doesn't matter too much, just no silly prices 
~Benjamin W (Adelaide Aus) |
08-05-2005, 02:55 AM
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 Quote:
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Originally Posted by budweiser_sud
Despite the fact my Alfasud has stiffer springs and Koni yellows all round, I still find there is a little bit too much body roll. Does anyone know of a source for a larger diameter/stiffer antiroll bar? Secondhand or new, doesn't matter too much, just no silly prices
~Benjamin W (Adelaide Aus) |
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No more Alfa .. 
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08-05-2005, 04:53 AM
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I have a recollection that the body roll doesn't matter that much - Track car owners have even be rumoured to remove the front bar completely (helps reduce understeer). I know that whiteline at least makes a bigger rear rollbar that may suit you.
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08-09-2005, 07:59 AM
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Front anti-roll bar.
I recently sent a sample bar to Whiteline and they made me a 22mm front bar for my 33 ( comes with no fittings you have to source your own bushes ). I run Konis all round with Whiteline springs front and rear with a Whiteline 18mm rear bar.
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08-09-2005, 05:06 PM
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Quote:
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Originally Posted by budweiser_sud
Despite the fact my Alfasud has stiffer springs and Koni yellows all round, I still find there is a little bit too much body roll. Does anyone know of a source for a larger diameter/stiffer antiroll bar? Secondhand or new, doesn't matter too much, just no silly prices
~Benjamin W (Adelaide Aus) |
IMO body roll does NOT matter, what is important is grip and cornering speed. By stiffening the front of an Alfa Sud (or any front wheel drive car) you will REDUCE traction and thus your exit speed will suffer. With an anti-roll bar on the front during cornering it, when trying to flatten the car, WILL lift or lighten the inner front wheel causing wheel spin ...
If you MUST install stiffer springs in the REAR of the car and this will flatten the body roll a little (until the inside wheel lifts). No real point in a rear anti-roll bar as it will just lift the inside wheel off the ground. I remember that most racing Suds in NZ are as stiff as at the rear ... thus they hop all over the place.
Why people get all beat up about body roll is beyond me  ... lap times are the only thing that matters 
BTW: Some in NZ have managed to somehow install Subaru limited slip diffs in Suds ... thus stopping the inner wheel spinning.
Try tilting your head when cornering ... seriously.
Pete
ps: Also removing the roll bar reduces weight .
Why are, for example, British Touring cars so stiffly sprung? ... 'cause their race tracks are extremely smooth and their tyres are probably run pretty soft ... thus providing much of the suspension.
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Last edited by PSk; 08-09-2005 at 05:12 PM.
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08-09-2005, 05:36 PM
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Welp, from this discussion I might just leave my suspension set up as it is, with the exception of fitting some nolathane (sp) bushings.
Any details on fitting subaru limited slip diffs? I've heard of this before, but no one has been able to give me any specs on the donor gearbox required and what mods need to be undertaken to make it fit in the sud/33 gearbox.
~Benjamin
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08-09-2005, 06:23 PM
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Quote:
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Originally Posted by budweiser_sud
Welp, from this discussion I might just leave my suspension set up as it is, with the exception of fitting some nolathane (sp) bushings.
Any details on fitting subaru limited slip diffs? I've heard of this before, but no one has been able to give me any specs on the donor gearbox required and what mods need to be undertaken to make it fit in the sud/33 gearbox.
~Benjamin
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The Alfa Sud front suspension NEEDS the rubber bushes to flex to make the (lower) wishbone to work. I made the mistake of fitting nolathane bushes everywhere on my race car and it became a twitchy beast to say the least. They also cause the rear suspension bolts to work loose ... so wire tie atleast. And again the rear suspension NEEDS the rubber to get suspension movement.
Most of an Alfa Sud suspension movement is not just rotational but rubber flexing or squishing ... get rid of that and she will become lots of fun.
Worse thing I ever did to my car ... but perfect for roll bar bushes.
Pete
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10-02-2005, 05:37 PM
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i removed the front roll bar on my inboard sprint and gained 2 seconds a lap @ winton.
after i converted to outboards, i had the front sway bar reinstalled - again half way through the day @ sandown i removed it and gained 1.5 seconds a lap.
remove it, its a waste of time. Your car will feel soggier on the road but the fact of the matter is it will stick to the road or track like glue. Its less nervous and heaps more fun! if you really want to have less body roll, take the front sway bar off and relocate it to the rear axle
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10-07-2005, 04:31 AM
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subie lsd in sprint/33 box
does anyone no of any info for doing this change have heard plenty but not found anyone who knows much about it.
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10-07-2005, 04:47 AM
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errr - bruno @ maranello motors in brunswick did my rear swaybar conversion - couldnt tell you how much it cost coz it was done with a whole lot of other work. number there is 9386 9650.
as for disconnecting the sway bar at the front - simple. get a 13mm socket and unbolt it yourself! as i said, it will feel less stiff at the front, and you will need to put a bit more turn into the wheel around tight fast corners, but damn, the feeling is great - the thing no longer scares me!
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10-07-2005, 04:54 AM
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pic of rear bar...
pic of rear bar...
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10-07-2005, 04:56 AM
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Quote:
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Originally Posted by PSk
If you MUST install stiffer springs in the REAR of the car and this will flatten the body roll a little (until the inside wheel lifts). No real point in a rear anti-roll bar as it will just lift the inside wheel off the ground. I remember that most racing Suds in NZ are as stiff as at the rear ... thus they hop all over the place.
Why people get all beat up about body roll is beyond me ... lap times are the only thing that matters
[/i] |
good advice here - either way, don't get a bigger front one, just remove it.
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10-07-2005, 05:01 AM
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Interesting!
How are the ends of the antiroll bar attached to the linkages? It looks like the original antiroll bar mounts from the front are used to the hold the bar on the axle? Are you able to provide a close up of this?
~Benjamin the sud maniac
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10-07-2005, 05:11 AM
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yes, the original mounts were adapted to captivate the ends of the bar on the front control arms, the mounts were welded onto the bottom of the axle.
check tomorrow night - i'll have pics by then
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10-07-2005, 05:48 AM
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sorry didnt explain myself properly still getting the hang of computers. was refering to the
lsd from the subies that had been talked about above
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