the way i read this it means that if u use 240k struts and "A" arms then u
are permitted the track of the 240k plus 25mm...
----- Original Message -----
Sent: Thursday, July 13, 2000 1:56
PM
Subject: Re: 300ZX Brakes and wheel track
(longish)
For a minor modification (owner certified),
the overall diameter of the alternative wheel and tyre must not be greater
than 15mm over the largest diameter wheel and tyre specified for the vehicle
and shall not be more than 15mm below the smallest diameter wheel and tyre
specified for the vehicle.
This indicates that as long as you keep within 15
mm of the overall diameter of the tyre and wheel, you can go up rim size as
long as you come down profile on the tyre, to maintain the overall
diameter.
You can go outside these limits, provided they
fall within certain limits and are certified by an authorised engineering
signatory.
This bit is of particular interest though, and
might be an avenue of investigation : Rule 3.8.5.
Where the original axle components
for the vehicle are retained, the wheel track must not be increased by more
than 25mm beyond the maximum specified by the vehicle manufacturer for the
particular model. Where non original
axle or suspension crossmember components are
fitted, the offset of the wheel
in relation to the axle or stub axle assembly used shall not be increased by
more than 12.5mm each side of the vehicle based on the specifications of the
axle components used. If an axle assembly is shortened then
the track width limit is taken as the axle manufacturers original track
dimension, less the amount the assembly has been narrowed, plus
25mm;
I've highlighted the point
of interest above: This suggests to me that say, for example, you
are using 200b/bluebird/240k/whatever struts, you can increase the offset
by not more that 12.5mm each side of the "vehicle based on the specs
of the axle components". ie. If those 'axle components'
came from a vehicle with a wider track anyhow, then this is the basis of the
track of your new vehicle with those parts fitted.
I dunno the track for the various different
Dattos, but this might help you out.
Cheers,
Wardy
----- Original Message -----
Sent: Wednesday, July 12, 2000 11:01
PM
Subject: RE: 300ZX Brakes and wheel
track
> Mick,
>
> My track is
spot on 52.5" and the ACT transport dept don't care whether a
> 510 is a
SSS or not but any wider and you're failed though. Funny thing is
> that
mine was never measured in it's life that I know of until I applied to
>
get the front brake upgrade passed.
>
> Wow, a 53.75" track must
look wild on a 510.
>
> terry
>
> -----Original
Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Mick Ralph
> Sent: Wednesday, 12 July 2000 10:21
PM
> To: [EMAIL PROTECTED]
> Subject: Re: 300ZX Brakes and wheel track
>
>
> be very careful about offsets on your wheels.. I have been
looking into this
> and it seems that most dattos with aftermarket
wheels are illegal in this
> regard
> The rules are
>
2" (50mm) is the max increase in diameter so 15" is max
> 1"
(25mm) is max for track increase.. this is measured from the middle of
>
the tyre tread on each side
> i would be very interested to know what
people on the list are running in
> the way of track
> 51.5" is
max for a 510 sedan and 52.5" is max for 510 SSS
> my 15" x 8.5" is
about 53.75" and the transport dept will not budge and give
> me
approval (bastards)
> cheers
> mick
> ----- Original Message
-----
> From: David Andrews <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, July 11, 2000 5:11 PM
> Subject: Re:
300ZX Brakes
>
>
> > Erroll,
> >
> >
Ok.. I sort of understand that.. so I'm guessing that that limits the
mags
> > I can use on it.. i guess that simmons OM's are ok (as thats
what Jeff
> > Shoesmith used)?.. does anybody know or could guess if
the Simmons F9R's
> > are ok.. or ROH Astrons?.. sorry to be a pain
but i'd like to know before
> > hand to weigh up if its worth it or
not.
> > Also.. What kind of handbrake does the 300ZX have.. hydralic
& cable?..
> > does anyone know the extent of modifications
required to fit these?
> > Thanks again,
> >
> >
Dave
> >
> >
>
>
>
>
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