really odd understeer from tc3, PLEASE HELP!

[stormperson]

i have had my tc3 for about a year now, and my two friends just got racer kits, the only thing they did to them, was brp bumpers and everything, i had gotten a team kit, however since i have updated to the plastic outdrives like they have, and also composite drives.

the only main difference is that i have a graphite chassis.

however, i have 1/2 the steering they do, i have driven their cars, and its amazing the difference. i have no clue what it is, i just replaced the hubs since there was some slack.

i have tried different tires, and currently run the same as they do too.

i run a futaba 9204 (i think, or other way around, anyway its $100 and is very fast) one of them runs a stock servo, and the other a 605 hitec, both have more steering, and i mean alot.

same springs and postions all the same.

i have a futaba cheapo bottom of the line magnum (new version) one of them has a hitec lynx and the other a airtronics 2 channel fm (cant remeber name, but the one with all of the adjustments in dials) and i dont have a dual rate so i have no clue. however i have changed to the lynx (then i dropped it and broke it) so now i am back to the futaba and the lynx oddly had a little more steering.

could anyone tell me what the problem is? i honestly have no clue. as for shocks (incase this helps:
-30wt back and front
-gold in back, silvers in front (figure it might help, nothing).

the only difference is that i have a graphite chassis, however i only run in my driveway with them, and there isnt any straight longer then 20ft, and its all low speed stuff.

could some one clue me into what i am doing wrong here? thanks!

[Throtl Hapie]

Check the rate selector on the transmitter. Make sure everything is smooth on the bell cranks. Also, was it always doing this?

[stormperson]

the problem is that since its a bottom of the line tx, it lacks and dual rate or end point adjustments.

and to be quite honest, i didnt really realize it until i drove my friends cars. i also had a one way in it since i built it then took it out about a month before i drove my friends cars.

and i dont think anything is rubbing, since i moved the steering with my hand.

[Grizzbob]

Well, it sounds to me that the TX is the problem, you really do need those adjustments to get full steering throw in both directions. I know it may get costly for you, but I think that's really your best option.... :)

[stormperson]

makes sense, they sorta set it at a happy meduim. but that means i will be off to buy a good one then.

[volvo98]

Is the car understeering or does it just not turn enough? There is a difference. What shock pistons do you all run? Does your steering rack support a full range of motion in both directions? Dual rate only referrs to the speed of transition, not the end points. I would guess radio is your problem, but you CAN set the car up to react as you like with your radio.

V.

[the_yawn]

maybe your servo is broken or something?

[ 06-02-2001: Message edited by: the_yawn ]