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View Full Version : KPI, scrub, caster, trail


RikyTheRipster
04-14-2005, 04:06 AM
KPI, scrub, caster, trail
WHats everyone running? especially people on 10's as thats what were prob gonna be running.

cheers
RikyTheRipster
04-14-2005, 04:06 AM
KPI, scrub, caster, trail
WHats everyone running? especially people on 10's as thats what were prob gonna be running.

cheers
fade
04-14-2005, 01:15 PM
2,4,6,8 MM
Dan B
04-14-2005, 02:40 PM
0, 2, 7, .7 (in & deg)
Frank
04-14-2005, 05:41 PM
kpi = camber, 1.6, 8, 1
jack
04-14-2005, 08:15 PM
kpi=camber, 2, 8, i can't remember (in, deg, and 10" wheels)
fade
04-15-2005, 06:47 PM
do you mean kpi=castor or are you saying you have 0 kpi?
Dan B
04-16-2005, 09:13 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by fade:
do you mean kpi=castor or are you saying you have 0 kpi? </div></BLOCKQUOTE>

My guess is that the spindle is perpendicular to the kingpin axis and that camber is adjusted inboard. So if they are running -1deg of camber the KPI will be 1deg.

Me I just call that zero KPI but the way it was stated above is more accurate.
jack
04-16-2005, 09:56 AM
Ding! Ding! Ding! you are correct! we have a winner! http://fsae.com/groupee_common/emoticons/icon_biggrin.gif
kozak
04-16-2005, 03:07 PM
so is that and adventage?
James Waltman
04-16-2005, 05:11 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by kozak:
so is that and adventage? </div></BLOCKQUOTE>
No.

Jack, I thought we decided not to do it that way...
jack
04-16-2005, 06:15 PM
even with the new/different camber change thingy, it will still change the kpi when camber is adjusted. the advantage of this system is the uprights are way easier to make.
kozak
04-16-2005, 10:23 PM
yeah it would change the kpi when you adjust camber but that wouldn't matter much right it would only change the scrub by a tiny amount right. so i think that it would be a advantage, in adjustability and ease of change.
Jeff The Pyro
04-17-2005, 02:59 AM
everyone seems to be running pretty high amounts of caster, on top of additional trail for some...

i've always learned that too much caster on a tight course loses agility, as well as causes a loss of feedback as the front tires start to lose traction, and that much caster doesnt seem necessary when you rarely exceed 60mph