| Author | Topic |
|---|
Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
|
|
RA40 Struts Vrs AE86
|
Mon, 10 November 2003 14:14
|
 |
Can someone who KNOWS please tell me exactally what are the differences between the two struts? Is the RA40 stub axle angle the same as the AE86? Does putting the RA40 struts in change the steering geometry in ANY way? If so what does it do?
I have RA40 struts atm and i have a handling problem that for the life of me i cant put my finger on as to what it is....
Im well aware of the fact that RA60 struts have the camber problems and so forth... and they are different to RA40 items.
So... fire away.
|
|
|
Location:
Madrid - Spain
Registered:
August 2002
|
|
Re: RA40 Struts Vrs AE86
|
Mon, 10 November 2003 23:34
|
|
|
How much lower than standard is it. You may find that you have bump steer combined with crazy roll centre movements. Well thats my problem anyway.
|
|
|
Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 01:20
|
|
I have roll center adjusters, bump steer and roll center isnt what im talking about... those issues are solved.
so does anyone know about the struts?
|
|
|
Location:
Montrose, VIC
Registered:
May 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 01:28
|
|
Long as you haven't done what I was once guilty of, fitted one power steering arm and one manual arm - certainly never quite felt right, and did amazing things to one front tyre.... 
|
|
|
Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 01:39
|
|
haha nah i havent done that,
do you know what its like with both power steer arms tho?
|
|
|
Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 03:53
|
|
|
someone must know the answer
|
|
|
Location:
Madrid - Spain
Registered:
August 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 03:59
|
|
A little more help with the problem might make it easier.
Do you know what your camber angle is???
|
|
|
Banned user
Location:
ADELAIDE - The Drift City
Registered:
July 2002
|
|
my prob
|
Tue, 11 November 2003 04:49
|
|
ok my ae86 suffers a lack of ae86 turn in feel!
Ive driven a few other modded ones and mine lacks the turn in feel that they all have. I have RA40 struts with ra65 control arms (longer) camber is about 2 degrees neg, maybe slightly under.
coilovers with 6kg/mm springs, 80mm lowered and 40mm roll center adjusters
|
|
|
Location:
Terrigal
Registered:
May 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 06:18
|
|
|
Aukerman - sorry spelt wrong i know.. But doesn't this effect turn in?
|
|
|
Location:
Melbourne
Registered:
September 2002
|
|
|
I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 10:43
|
|
I'm 99% sure the RA40 has larger stub axles 
|
|
|
Location:
Melbourne
Registered:
September 2002
|
|
Re: RA40 Struts Vrs AE86
|
Tue, 11 November 2003 10:45
|
|
|
The RA40/RA60/MA61 etc all have the same larger (compared to the AE86) axles...
|
|
|
Location:
Madrid - Spain
Registered:
August 2002
|
|
Re: RA40 Struts Vrs AE86
|
Wed, 12 November 2003 00:01
|
|
Ackerman angle will only make a difference if the wheel base to wheel track is significantly different between the sprinter and the celica. Obvoiusly yout front track will be different to a normal sprinter because you are using different lower control arms.
You seem to be using a lot of camber for a road car, maybe that has something to do with it.
|
|
|
Location:
Montrose, VIC
Registered:
May 2002
|
|
Re: RA40 Struts Vrs AE86
|
Wed, 12 November 2003 00:19
|
|
What sort of caster you running?
And power steering arms sure do help out with the steering, a must for any car 
|
|
|
Location:
Auckland
Registered:
May 2002
|
|
Re: RA40 Struts Vrs AE86
|
Wed, 12 November 2003 03:21
|
|
Yo
not sure if they are the same but i am using Ta63 Corona struts and vented discs etc
spacing for it to bolt onto steering arm is 90mm as opposed to ae86 85mm or there abouts. As soon as installed camber went to shit and i had to run a 140mm (hole to hole) steering arm ..this setup felt sloppy and uninspiring ..but i managed to get my hands on some 120mm steering arms which are only 5mm longer than the GTV ae86 ones.
And to correct the camber problems i welded 1.5inches of box section into my ae86 lower arms which gave me about 2.5deg NEG and the same amount of track either side .i am running no roll center adjuster
|
|
|
Location:
Terrigal
Registered:
May 2002
|
|
Re: RA40 Struts Vrs AE86
|
Wed, 12 November 2003 04:26
|
|
|
How hard is it to find these power steering arms?
|
|
|
Location:
Eskilstuna, Sweden
Registered:
May 2002
|
|
Re: RA40 Struts Vrs AE86
|
Thu, 13 November 2003 02:46
|
|
Hi Simon,
Lack of turn in response does sound like a problem with the amount of castor you are running. I myself run 2 degress front neg camber (IMHO not too much for a street car, hard on tires maybe - but something has to sacrifice itself to the Gods of handling) and in order to get good turn in feel I am running as much castor as I can.
Which on the 86 can be dialled in easily as the factory castor rods are adjustable (on some vehicles they are not).
Hope you find that helpful
|
|
|
Location:
Sydney
Registered:
November 2003
|
|
Re: RA40 Struts Vrs AE86
|
Thu, 13 November 2003 03:07
|
|
Hi Simon,
I race a sprinter in Improved production and run RA40 struts, as far as I could tell once they where fitted there was not affect on the wheel alignment whatso ever, the main reason I did it was hoping for some more neg which didnt happen and secondly for a stronger stub axle, and bigger wheel bearings!
what shocks are you using and how old are they?
|
|
|
Location:
Finland
Registered:
November 2002
|
|
Re: RA40 Struts Vrs AE86
|
Sun, 16 November 2003 19:28
|
|
| Quote: |
coilovers with 6kg/mm springs, 80mm lowered and 40mm roll center adjusters
|
Im not going to comment to that 80mm part but if I understand right it sounds like your scrub radius is out.
I think that your wheel track is wider than lenght between right and left srub radius points. Factors that affect to scrub radius are wheel offset, tire diameter, kingpin inclination, lenght of lower control arm, eccentric bushes and adjustable strut tops(last two if you have those!?).
BTW. If your wheel track is narrower than lenght between right and left srub radius points, your car will be sooo scary to drive.
|
|
|
