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Re: Ur-Q rally cars...
John Firkins wrote:
> >Why do you think that would aneone need them for street use.
> Who said anything about street cars?
> >Do es aneone routinely break off controll arms. These controll arms are
> made of
> >chrommoly tubing for strenght and are mounted to stronger subframes.
> Not when they came from Audisport
> >All together it is a stronger setup. On street car if you add these links
> >and control arms you will end up with damaged subframe.
> Please explain your logic here.
> >Frank Sprongle can fabricate all that for you or purchase it from Audi
> >motorsports after
> >he stops loughing at use of all this for street.
> Then he must have been in fits when the sport was released as a street car.
> John Firkins
Please don't forget that Quattro Sport was homologation spetial. It had
to have present all parts that were not found on regular Quattro Coupe
but were to be used on rally car. Example is homologation spetial of my
Celica had water injection which is really not needed for street but was
to be used for rally by factory.
Quattro Sport also had double plated suspention pickup points and front
strut brace. It was hand built and was intended to legalise all these
extra parts. Also it had a pipe that ran from upper strut pickup point
down and forward, in front of oil pan and around to the other
side. Because suspention pickup points are usually tied into cage if
possible, this pipe was almost a part of thge cage. It is this pipe that
control arms are tied to with rosejointed links that our fellow lister
saw on the picture of the "dirty side". All this was done to the rally
car to stiffen and strengthen the shell in order for it to survive the
stiff 5" spring suspention. All properly built Audi and other rally cars
follow this logic. When budgets or rules are limiting factors and shell
prep is not complete one is forced to use softer suspention and adjust
driving style or else damadge the mounting points. If mountin points are
reenforced but the shell is not adequatly stiffened or if too many
mounting points are not tied into cage, the shell will worp. This is why
it is recomended to put rally cars on frame puller and true them up
periodically even if they are not damaged. Top ProdGT drivers in SCCA
Prorally routinely do that and finde major bends. Rally control arms from
Audisport are painted blue and made of tubing. I was told that it was
chrommoly. I had opportunity to buy them but had no use and didn't. I
have seen chrommoly subframes on Audi and many other rally cars including
factory rally version of my Toyota. One Audi rally driver with
fabrication capabilities prefered use of stock stemped steel control arms
without links so that in case of colision with large potholes only
control arms are bent and damadge doesn't spread to subframe and shell
which are not strengthened enough to take it. The same driver once bent
lower arm and than chained it to a tree near by and pulled it out by
putting his car in revers. It was not pretty but he made it to the end of
stage and replaced it at the next service. This is a more practical way
for a privateer.
I hope this is adequate explanation. This is not laws but opinions of
peope that were and are my mentors in this sport. I learn something new
at every rally and on every stage and service stop. Most amasing ones are
in England where I am going this fall again to spectate RAC and look for
builder for my rally transmission.