1. Mat
2. DIV
3. TrackToyFour
4. Kris
5. Krude (poly bushes too??)

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ST205 WRC #0002249

Took the car for a nice long drive on Sunday to get some more kms on the rebuilt engine. Despite keeping the revs below 5k and boost down below 6psi, nothing could keep up with me (even keeping to legal speeds) along the really tight and twisty roads along the East Coast. I can only salivate at the thought of what the car will be like once full tuning is completed
I still can't get over how much of an improvement the 19mm front ARB has actually made to the handling of the car. Turn in is extremely precise, very little body roll on tight corners and no percetable loss of traction (Having Toyo RA1 DOT approved slicks obviously helps ) whatsoever. To say I'm a happy bunny is a bit of an understatement
Gary

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1994 Toyota Celica ST205 GT-Four Group A WRC - running in rebuilt engine....

Hi.

This anti roll bar you say 19mm is about what you need, how have you worked this out, not being funny but a little bit of road testing is not going to show much, with out some kind of G meter you would not know that much, tyres and springs shock would change handling big style as with road temp etc.



IF my understanding is correct, the straighter the arb the better, the choice of thinner material can be used, 19mm front arb is very small, maybe ask around what a wrc road spec arb rating is.

some people are looking for track improvements, any amount of road testing is nothing like circuit testing, the loads you get on a track are many many time greater than any road testing.

If using higher rated springs, the arb will need to suite, I know from racing rs500, escort cosworth’s, etc they run between 22mm to 26 mm front arb, straight type, this is for many reasons which I want bore you with now.

The size of any anti roll bar is a function on the vehicle weight.

I can get any bar bent up to 2” 50mm solid any shape you need, here in the UK.

I know arb’s after being bent get heat treated, was this the case with yours.

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Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

Fair comment.

Prior to the fitting of the new ARB, I was running stock KYBs, TRD springs, Whiteline rear ARB, the 'usual' nolathane bushes and Toyo RA1s. So I had driven the car for a few months with that set-up. With the addition of the new ARB, a huge improvement is immediately noticeable as it was essentially a 'back-to-back' type drive.

19mm was chosen partly from my own experiences with other cars and also advice from local 'experts'. A 21mm or bigger ARB may well make a difference still further, but all the advice pointed against it as it has the potential to induce unwanted understeer.
Remember that the RS500s were RWD which will require a completely different set-up to 4WD.

Track driving may be different - especially with different spring rates etc - I am simply passing on my own experiences with this set-up. If you want to make ARBs for these guys to your own spec, then please do.
Cheers
Gary

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1994 Toyota Celica ST205 GT-Four Group A WRC - running in rebuilt engine....

Hi Gary. Don’t get me wrong, just wanted to clarify some unknown variables..



Ok that's cleared that up, only the ARB had been changed.

The escort cosworths are 4 wheel drive, they run compression struts so the arb only functions as an arb, not a stabilizer bar & arb sizes vary depending on the job in hand.

Something with 900 lbs front springs would be on 24 mm arb.
This is from a wrc escort cosworth, 99 for road rally tarmac set-up..
Rear ARB was 21mm.on 700 springs.

Its all important that people input there experience, as this helps others to learn..

I could make ARB,s for these cars, no worries, I had no intention to do so, apart from the bladed type for my own use.

just thought getting them made in the uk would save a lot of postal charges..

But now you have put the idea forward, I will ask around.

Personally I wanted to go for straight bladed type for a fully adjustable set-up, this way you can get a balance.

following the stock layout would be no problem, being a direct bolt in unit would be easier for people to fit.


A useful formula to help select material size

http://www.teamscr.com/sway.html

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Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

Jon
Nothing wrong with a healthy debate - that's what these forums are for

I'd have no issues whatsoever if you had them made in the UK. Would work ouit cheaper for everyone and means I wouldn't have to run around down here organizing everything (though I am happy to if need be )

Am aware of the Escort Cossies drivetrain, my comment was purely aimed at the RS500.

By bladed type, I assume you mean an in-car adjustable type? We are seriously considering this set-up for a mate's circuit race car we are building. Fair bit of work, but potentially very useful during longer races.
Cheers
Gary

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1994 Toyota Celica ST205 GT-Four Group A WRC - running in rebuilt engine....

Hi Gary.

Yes forum’s are great for discussion.

i must take this point to emphasise that i have no problem with your sizing of the dia.
without a starting point being taken, no experimental design's or progress would take place.

One thing that i did forget is the 205 arb is a lot smaller in diameter than the 185, so when i saw 19mm mentioned i almost wet myself, after investigation, i have realized my error over sizing ..

i need to invest in a 205 project to become a little more conversant with its variations..

One of the main reasons i thought bladed arb route, is the factor of its adjustment, with in car adjustment, the set-up procedure should be a little less timely

As for time period, i think its like all things, anything scratch built, modified, or made for custom purpose etc, consumes Hugh amounts of time.

I have received a response, on my inquires on producing up rated gt4 anti roll bars.

its no problem to produce them.

Just require original units for templates, prior to that happening i can not quote a production price, any size can be catered for..


I don’t want to step on your toes, or any one else’s.

If any one want's to go further with this, then contact me..


jon

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Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

Jon
OE ST205 front ARB is only 15mm - extremely small for a front engined car IMHO. I can see why they did it as understeer is much easier to deal with for the average motorist.

As for making them in the UK, as I said, I have no issue with that at all. I never had any intention of making any money from the 'venture'. Any costs would be purely what the makers charged.
Cheers
Gary

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1994 Toyota Celica ST205 GT-Four Group A WRC - running in rebuilt engine....

Gary,

Your offer is much appreciated whatever the outcome!

Ditto.

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Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

Looks like someone does actually make off the shelf front ARBs for the ST205 after all...
http://www.c-one.co.jp/C-ONEPARTS/stabilizer.html
My Japanese is as good as my Swahili, but it would appear to be 18mm for the front. Cost is also about the same as my custom one.
Gary

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1994 Toyota Celica ST205 GT-Four Group A WRC - running in rebuilt engine....

I know the whiteline rear ST185 sway bar directly bolts onto the ST205 rear.

Will the front sway bar bolt on? has anyone tried it out ? the superstrut setup might make it a no go ? Would love that C-One 18mm front ARB

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spoke to the guys who have undertaken the arb fabrication.

should have back some experimental arbs shortly, a few choices of size for front and rear..

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Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

Any volunteers for testing them on an ST205?

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Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp

There will be a visitor shortly!

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Kris
95 ST205 - slept for 10 years, now waking up...
Avensis
http://www.gtfours.co.uk
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Turbocharging - the replacement for displacement