Guinness
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| posted on 24/9/05 at 10:44 AM |
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Self Centring
One of my (many) SVA fail points was lack of self centring action.
I have an BEC Indy, running 185/60R14's at 30 psi.
I have just been to ATS (only place open on Sat am) and got them to put 1 degree (or 5mm) of toe out on it.
But on the drive home it didn't feel any different.
Any suggestions?
More toe out, lower tyre pressures or anything else.
Cheers
Mike
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indykid
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| posted on 24/9/05 at 12:59 PM |
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yes, yes, and make sure your rack is well greased.
i had about 2.5 degrees toe out, and about 16psi. dunno what it'd be like to drive it like that, but at sva, it self centred really well, right
back to straight ahead and he was more than happy.
tom
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12a RX-7
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| posted on 24/9/05 at 03:54 PM |
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you need to adjust the caster not the toe.
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Hellfire
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| posted on 24/9/05 at 04:03 PM |
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We had lots of toe-out did the job too.
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zetec
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| posted on 24/9/05 at 07:53 PM |
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Toe out for sure, as much as poss, makes the car crap to drive but keeps SVA man happy. Also tyre presure is very high most run 16-20psi.
" I only registered to look at the pictures, now I'm stuck with this username for the rest of my life!"
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JoelP
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| posted on 24/9/05 at 09:00 PM |
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quote:
Originally posted by 12a RX-7
you need to adjust the caster not the toe.
toe as a temporary solution works, obviously not a perminant fix. Mine has anti selfcentering! 
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Peteff
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| posted on 24/9/05 at 11:42 PM |
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Try using standard wheels with narrow tyres. If the steering's heavy you won't feel much self centring effect.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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scotlad
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| posted on 25/9/05 at 09:59 AM |
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ditto toe out. worked for me, though now i have a quick rack fitted, it does no self centring at all! 
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Grahame L
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| posted on 25/9/05 at 07:38 PM |
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Sorry to hijack thread but I have SVA in two weeks and have a quick rack fitted!! Does this mean no self centreing no matter how much toe out/ tyre
pressure reduction i put on?
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Stu16v
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| posted on 25/9/05 at 07:55 PM |
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Everything else being equal, a quick rack will actually work in your favour...
Dont just build it.....make it!
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Grahame L
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| posted on 25/9/05 at 07:59 PM |
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How do ya meen Stu? Please explain!!!
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Stu16v
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| posted on 25/9/05 at 08:55 PM |
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Because the 'uprated' gearing of the quickrack means that whilst it is harder for the driver to turn the steering wheel (becasue of the
gearing), it also means that the wheels now have more of a mechanical advantage when trying to turn the steering shaft/UJ's etc back to centre.
Or. so it can be pictured more easily, think of it like the gearbox in a car. First gear is akin to a standard rack, easy for the engine to get the
car rolling (the driver turnnig the steering wheel), but the car would find it harder to spin the engine - downhill for instance (the wheels trying to
self centre).
However, bung it in forth, and it is now much harder for the engine to move the car (now more effort required, but things move faster at the other
end!), but conversely this gear would offer little in terms of engine braking, and turns the engine easily (wheels dragging steering linkage back to
centre).
HTH Stu.
[Edited on 25/9/05 by Stu16v]
Dont just build it.....make it!
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Grahame L
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| posted on 25/9/05 at 09:07 PM |
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Yes now you've edxplained it does make sence!! Thanks Stu!! Ever thought of teaching???
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