52LikesTeam Losi JRXS Type-R
07-19-2007, 10:16 AM
#4951
See I knew dumping Physics and taking European Social and Economic History from 1750-1850 instead would come back to bite me in the ass 
Uhm ya that is interesting and will require some thought given that what I thought was a minor change in camber link position actually has quite a significant effect on the pivots of the grounded and coupler links
Uhm ya that is interesting and will require some thought given that what I thought was a minor change in camber link position actually has quite a significant effect on the pivots of the grounded and coupler links
07-19-2007, 10:30 AM
#4952
07-19-2007, 10:40 AM
#4953
OK now were getting somewhere, let me rephrase the question to take some of the confusion away.
What effect does legnth of the a-arm have on a car. Ignore shock positioning, and its effect on shock forces as this can be the same. But what really are the effects of the overall length of the a-arm and why is there a difference between a longer arm or shorter arm and hex which equates to the same legnth of the a-arm. Not sure if Im asking the question right. but the question is not who has the best car and what is right or wrong its more of a theoretically speaking why is this the case?
For those of you like myself with small children look at me as the one saying "WHY?" everytime someone says you should do this........ I like to understand the principles behind things not just that it works or doesnt work but WHY does it work? Maybe I should change careers
What effect does legnth of the a-arm have on a car. Ignore shock positioning, and its effect on shock forces as this can be the same. But what really are the effects of the overall length of the a-arm and why is there a difference between a longer arm or shorter arm and hex which equates to the same legnth of the a-arm. Not sure if Im asking the question right. but the question is not who has the best car and what is right or wrong its more of a theoretically speaking why is this the case?
For those of you like myself with small children look at me as the one saying "WHY?" everytime someone says you should do this........ I like to understand the principles behind things not just that it works or doesnt work but WHY does it work? Maybe I should change careers
To lead you in the right direction...Roll Center Migration
07-19-2007, 10:49 AM
#4954
a-arm length has a lot to do with shock positioning and it's effect on shock forces. the arm pivots around the chassis hinge pin, and if that length from the chassis pivot to the shock attachment point on the a-arm is shorter, which it will be on a shorter arm, the shock motion will be different.
07-19-2007, 10:55 AM
#4955
07-19-2007, 10:56 PM
#4956
I am running Hodges 06 nat's setup and was curious about a couple of things....he has the front hex at .225 and the rear at stock...if I take the rear out with the .195...wil that make it a little more stable through the turns? Also, with reguard to Caster what affect does increasing the angle have (go from 4 to 6)? and conversly from 6 to 4?
On asphalt you will have less overall steering as you increase the caster.
07-19-2007, 11:01 PM
#4957
Todd,
I hope you make it out to the BCR track sometime... They are having a summer slam race on the Aug. 18
I hope you make it out to the BCR track sometime... They are having a summer slam race on the Aug. 18
07-20-2007, 04:58 PM
#4960
They are not right, for it was calling for a 25 for my KO and they did not work right. 23 is what worked on the KO, just try the other two and see what one fits better.
07-21-2007, 09:56 AM
#4961
oh man i love this car more every time i run it 
i ran bl 13.5 stock again last night and held tq until the final round where i got edged out by 2 seconds. my fast round had quite few "bad" laps at the start, so i know there was room to improve. in the main i got bumped down to last by the 3rd place car, had to work my way up. i worked up to about 3 seconds off 1st and 2nd and finished 3rd. i had probably the 5 fastest laps of the main though when i was reeling those two in.
time spent cutting motors: 0 minutes and 0 seconds
time spent fixing broken parts: 0 minutes and 0 seconds
time spent checking setup: less than 10 minutes for the whole night.
i ran bl 13.5 stock again last night and held tq until the final round where i got edged out by 2 seconds. my fast round had quite few "bad" laps at the start, so i know there was room to improve. in the main i got bumped down to last by the 3rd place car, had to work my way up. i worked up to about 3 seconds off 1st and 2nd and finished 3rd. i had probably the 5 fastest laps of the main though when i was reeling those two in.
time spent cutting motors: 0 minutes and 0 seconds
time spent fixing broken parts: 0 minutes and 0 seconds
time spent checking setup: less than 10 minutes for the whole night.
07-21-2007, 11:16 AM
#4963
yeah, it's soooo slow compared to brushed. actually, i did get spanked on the straight by a guy running a co27, but whatever. i *could* probably go up a tooth or three at night, but i'm already at 4.9 for temperature reasons during the heat of the day.
07-21-2007, 11:34 AM
#4965