tapornap113

I'm a complete noob at all this, so forgive my ignorance. I just recently built this car and am going to be running it on a fairly tight carpet track. What ballpark should I be in as far as gearing goes? I will be running it in the gt class(21.5 motor). Any help would be greatly appreciated. Any other tips also welcome.

moparSRT

start somewhere between 3.5-4fdr depending on track size, check your motor temp every couple laps and gear/time from there.
you will need a spur around 66T 48p or 88T in 64p

tapornap113

Thanks. I have a Tekin RS esc/motor, which has built in temperature monitoring. Is it accurate enough to go by, or do I need another means of measuring it? What should be the max motor temp.?

moparSRT

keep it safe at 160F or less

dont rely on the esc for temp monitoring, use a temp gun

tcb22185

iTrader: (61)

What sway bars are u guys running

moparSRT

1.5mm front, nothing rear on asphalt

tcb22185

iTrader: (61)

I must say for the $109.00 this kit cost it is very well designed. Stuff goes togather very very well. They did a fine job on this one..

coderzone77

Just to ask, are these compatible with my sakura Xi sport ?
http://os.3racing.hk/products.php?products_key=4738
I just want to buy them (and the floating servo mount)

Nego

iTrader: (107)

yes they are i have them both on my xi.

coderzone77

Just ordered the 5mm Hexagons for the wheels and the Alluminium floating servo mount
Some other needed upgrades in your opinion ?

ttsquirrel

What is a nice inexpensive servo?

MD

iTrader: (136)

Here's a good low profile servo.
http://www.valuehobby.com/radio-syst...hd-1207tg.html

ttsquirrel

ok so i bought the 88t 64p gear but now the 19t center pulley doesnt fit on it!!! it will not fit flush.

so the question i have is should i cut the center pulley around the screw holes to make it fit flush or grind the spur gear to make it fit flush??

the other problem i have is my dremal is not here so i cant fit it tonight..

tts

ttsquirrel

ok just making sure i got this right.. im trying to get fdr and the only thing i find in the manual is that gear ratio is 2:1 (38T/19T).

what is the internal ratio that i use when i am determining fdr. i have a 88 spur and 48 pinion. so 88 divide by 48 times what??

the zero s had a internal of 1.9 but i changed it to 2.0. what does the xi have??

thanks and sorry for the newb q's

tts

moparSRT

yes, just trim it around the screw holes ... I just used some body scissors.

internal ratio on XI Sport is 2:1
so
88 / 48 X 2 = 3.66 FDR