I think he meant to say caster.
Right rear tire wear
- Thread starter jacobsdad
- Start date
alvin l nunley
Site Supporter
Sorry for the mistake, please replace the word "stagger" with the word "caster". Sorry about that.
Pete_Muller
Moderator
5280' / 8 = 660' circumference
660 / pi = 210' diameter circle
210' / 2 = 105' radius
I suppose if the track was a "D" shape, there could be 2 dead sharp corners and one bigger corner that would have a radius slightly larger than 105', however that's probably unlikely.
PM
racing promotor
Moderator
You don't have to wonder that, it would certainly be better than none at all.
alvin l nunley
Site Supporter
I don't know how you came to that conclusion! If the stagger was twice as much as you need, it would be wrong in tthe corners and down the straight. No stagger would be better down the straight even If it is wrong in the corners.
Menace61
Member
No stagger in the corners would be far more detrimental than too much stagger on the straights and corners.
I win a lot of races on what would be commonly accepted as too much stagger.
alvin l nunley
Site Supporter
racing promotor
Moderator
A 1/8 mile dirt track has NO straight's !!
alvin l nunley
Site Supporter
My thinking is; twice the needed stagger in the corners and down the straights would be worse than no stagger in the corners and no stagger down the straights. It seems to me that twice the correct stagger in the corners is just as bad is no stagger in the corners. Where as, down the straights, no stagger is much much better than twice the stagger needed.
racing promotor
Moderator
Might be your thinking, BUT not the way it would work out !!
alvin l nunley
Site Supporter
I think you are in error................. maybe not, but you could give me some explanation as to why you think that.
racing promotor
Moderator
Dirt oval racing is all about momentum, with to much rear stagger you would be loose in the rear BUT can control it with throttle control, with no rear stagger it would push like a dump truck, best way to get it to turn would be off the throttle and stab the breaks and still wait on it a little, or roll completely out of throttle and wait on it a lot, throttle control would maintain a lot more momentum ending up much faster, than stabbing the breaks or waiting on it to long.
XXX#40
2A supporter
He never figures that in, he's been told over and over that we are never traveling in a straight line, and what's gained in the corners negates what little is lost
racing promotor
Moderator
I almost added this same info to my post !!
Pete_Muller
Moderator
What do you mean no straights? 
racing promotor
Moderator
Guess maybe that's why it's called dirt oval racing !!
Pete_Muller
Moderator
Racing Promotor (and others):
Is it "logical" that stagger should be somewhere between the "ideal" stagger for the two points I've marked? If the kart is not handling correctly keeping things somewhere between those stagger values, maybe look elsewhere (cross weight, caster, etc.) ?
I'm all up for enlightenment!
PM
Is it "logical" that stagger should be somewhere between the "ideal" stagger for the two points I've marked? If the kart is not handling correctly keeping things somewhere between those stagger values, maybe look elsewhere (cross weight, caster, etc.) ?
I'm all up for enlightenment!
PM
racing promotor
Moderator
And if tires are to far off, or the driver line they are driving, It's all out the window anyway !!
flattop1
Dawg 89
The amount of experience between RP And XXX40 are one explanation .
Its hard to discredit results . Results , after all are data via lap times .
No , its not a ten year study of too little vs too much stagger . It is however real world testing .
paulkish
old fart
logically per calculation absolutely yes on this much and this less.
But you can absolutely consider the thought process getting you there to be incorrect and incomplete.
Stagger is a tool used by the operation of the chassis.
Stagger does not determine how the chassis will use it, as a tool.
It can determine how the chassis can or needs to be used.
Any stagger normally is only correct at any place on the track because of how the chassis engages each rear tire separately and independently with the track because of how grip at any moment around the track is made or accessed.
Pete, depending on how weight is applied to alter grip to each of your two rear tires, with each having different tire surface speeds, stagger can be perfect at every place around the track you pictured.
It can be more or less and work at each place pointed out around the track, per the line drawn.
edit: removed the below from the last sentence because what was arrowed referred to an idea, not something exact which my reply indicated.
"not just what is arrowed."
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