lrdars

Hello,
I know this question must have been anwsered 1000 times, but i have to ask it again.
I have a TA04-S with the following:
-Nosram Internation Speedy
-White Springs at Front
-Blue Springs at Back
-Standered Shock oil
-Yellow Sway bars at front
-Racing hub set at front
-Deans plugs on battery and motor
-1 to 2 degree Camber at front
-1 degree toe-in at front
-Standed kit setup at back
-540 Tin Can motor 83/40 (Racing in 540 pro)
-GP 3300 batteries

The problem is that i don't have the speed that other guys do that run less hop-ups runing the same gears. What is a good setup useing the bits i have.
Any advice on the TA04 Setup Camber, toe-in\out Springs etc wise would be great.

-LRDARS

rccardr

iTrader: (8)

Unless you're running at Bonneville, you're geared waaaaaaayyy to tall. Go down to an 85/34 combination and things will get much perkier. Pay close attention to battery voltage- every tenth helps. There's can also be a considerable difference between motors. You might consider buying several more and water dipping them to see if you can find a faster one...but DON'T overgear it!
Oh, and have fun.
Doc

lrdars

water dipping????? The track that i race has a lot of corners so going to 85/34 is that a good idea. What about the setup?
Which 540 motors are better then the rest?
Sorry about all the questions

-LRDARS

Evoracer

iTrader: (24)

Take the motor out of the car and while connected to a battery, dip just the motor in a cup of clear water to clean it out.
You might try the Sport Tuned 540. Tamiya part #53068
Also, check the "freeness" of the drivetrain. Do the bearings run smoothly?? Is the belt tight but not TO tight?? Are the diffs smooth?? (check for to much grease)
You might get some help at www.burienrcracing.com. I think they have some good setup tips. Good Luck

lrdars

Drivetrain is smooth. Can't change the motor in the class that i'm in. Will try your tips.

Dragonfire

iTrader: (1)

One thing to look at ios your radio/speedy. Check that the speedy is actually getting a "flat stick" signal (the manual will tell you what the LED does when this happens). I have seen ppl bump trim settings and other stuff then wonder why their car is not working right.

Work out the rollout for your car. I belive anything over 40mm is a waste of time. You will not gain any real speed but you will lose all your punch gearing over 40mm.

leekayliang

Your gearing is too high, about 4.4.

Gear about 5.2 is OK as wat recommended by rccardr. Too high becomes too hot for the motor and drop performance,.

Tamiyamad

I run 2 cars TAO 4PRO & TAO R which both have a Johnson 540 motor. Intel Speed Controller (Autosport). I race cars on the Sunshine Coast, Qld Australia on a track with a lot of tight turns. My Rollout on TAO4R with a 61mm rubber tyre diam. is 35.99, thats running on a 64mm pitch, pinion 48, spur 120, which gives a gear ratio of 4.33, this works well on our track with no overheating problems with either speed controller or motor. I don't know a lot about set up on cars, still learning myself. Factory set-up on recommendations on manuals. Looking into getting a set-up book for cars which may help you also. It is called "XXX-MAIN" you may be able to get this book from your local library or hobby shop.

lrdars

How do i find the roll out of my car

Tamiyamad

The Formula for Rollouts is

Diameter of tyre x pye(3.14) = radius.
Radius devided(Spur devided by Pinion x Drive Ratio) = Rollout

to get Drive Ratio is Large Gear/Small Gear

Diff Pully (Large Gear)
Central Pully (Small Gear).

Example:

Large = 32teeth Small = 15 teeth
32/15 = 2.13 which is the DRIVE RATIO to my knowledge this is the same on all TAO4 cars.

Diameter of tyre say 60mm
Spur Gear 64 pitch = 120tooth
Pinion Gear = 48tooth

60 x 3.14 = 188.4 Radius


188.4 devided by(120 devided by 48 times 2.13)

= 188.4 devided by (5.33)

= 35.35 Rollout

Rollout = for one turn of the motor car will move forward 35.35mm.


This is all for the 64pitch this is a fine tooth which comes with the TAO4 kit. There is a 48 pitch which is not an original tamiya part but seems to be commonly used in Australia on TAO4s and other cars.

I have done a data sheet for Rollouts for different size pinions, spur gears and wheel diameters for the Tamiya TAO4. If you want me to email this to you send me a personal message on Tech Forum with your email address.

lrdars

Is the 82/35 a good gearing to run?

WC

iTrader: (28)

Why are you asking others that? That is a question only YOU can find the answer for.

Just put it in your car and race it... if the new ratio gives you a better lap time, then it's it.

If not then try again with something else.

Its all a tradeoff... a lower ratio gives better pickup at the infield but loses on the straight. A lot of it depends on your driving style too - a smooth driver can carry a higher ratio and still make decent lap times.




If your 540 gets too hot... you could buy it the Tamiya finned motor plate heatsink, works pretty well. I have it in both my PRO and R.

muahaha

if any of u guys r interested, this is the setup i have used on a tight technical carpet track.

ta04 model : ta04 trf with blue aluminium trf shock & MII lower
deck

front
toes : .5 deg out
chamber : -2 deg
caster : 4 deg
kick up : 3 deg (3mm spacers between chassis and hinge pin
holder)
stabiliser : lower yellow (like ta04r)
droop : 3mm
ride height : 6mm

suspension front:

yellow springs
3 hole piston
red sponge inserts
80wt oil
mounting : outer hole in lower arms and 2nd hole counting from
outward on shock tower

rear
toes : 2 deg block
chamber -2 deg
anti-squat : 0 deg
inboard toes : 2 deg in
stabilizer : red
droop : 5mm
ride height : 6mm

suspension rear

blue springs
3 hole piston
red sponge inserts
80wt oil
mounting : inner hole in lower arms and middle holes in rear
shock towers

center pulley : oneway
front diff : full diff
spur/pinion : 128t/32t

motor : kisbey modified 27t stock
batteries : kmr gp3300 match packs

tires : 26r sorex
inserts: sorex medium
rims : top cad aluminium with 2 deg offset

other mods: 2mm tamiya red spacer on wheels and full light
weight universal mip cvd. all chamber link position r
the same as the factory setting.

MrEs

if they are faster then check how free ur drivetrain is, how much your car weighs and how gbood you batteries are. batteries are SO SO important! they're the only reson i do good in the 540 pro class.

KREATOR1

iTrader: (8)

and also check the EXP throttle and etc...on your radio.
Sometimes we forgot to set the radio while busy setting ur car even with good batteries.