convikt

iTrader: (27)

with the 17.5, try to get the fdr down to mid 4's Trust me it will take even more

majicman

any idea on how I can get it down that low? I dont mind going to 64p as the track is swept and blown off before we run on it.

convikt

iTrader: (27)

what was the internal ratio of the tc4, something like 2.42 or something (I dont remember). You will have to find out what the smallest spur you can get for that. Its going to be tuff
82 spur
45 pinion
assuming its a 2.42 internal ratio
=4.40

yes thats with 64 pitch

majicman

Internal is 2.5. Looks like I will have to take a trip to the hobby shop and see what I can come up with for 64p gears

convikt

iTrader: (27)

84 s
45 p
=
4.666

spur / pinion = ( ) x 2.5 = fdr (I'm sure you already know)
Just play with a calculator, based on what gears you can find at the hobby shop. Hope this helps.

majicman

It does thank you. I may shoot for a 4.5 FDR and take it from there. I am interested in seeing the speed this motor produces against other motors. Thanks again.

DRAG_ON

TC4 internal ratio will be 2.51 not 2.42 --- just for an advice running in car park dont use 64pitch spur the small stone will destroy your spur.............use 48 pitch i never change my TC4 spur at the moment it install with robinson spur 48p it's tough

paul73rc

iTrader: (5)

Is a TC4 a good DRIFTER???????????????

convikt

iTrader: (27)

Read on past that post, I was "corrected" on the intenal ratio

I havent bought 48 pitch anything for onroad since the tc3 lol, so not sure on the availability of sizes needed to get the ratio needed

majicman

convikt, I hope that I didnt come across as unappreciateve of your help with the gearing? I am grateful for the help.
I agree that 64p may not be the optimal pitch for parking lot style racing, I know that there are people who run 64p gears on this track successfully as the hobby shop does a very good job of prepping the parking lot area that is used for the track. Is there another option I can go to get some thing close to the 4.0 FDR and not use 64p gears?

I know the idea behind the 17.5 motor is to "slow" things down for stock racing, which I am certainly fine with. I had a 13.5 to begin with but with the new ROAR rules, I like to be inline with what the rules are going to be. It will be an interesting test this weekend to see how I can do with this motor as this will be my first time racing on-road.

I plan to try the recommended gearing in practice to see how it stacks up against a 27t overall but would like to have some options to go to in the event that the +2 teeth over puts me in a position that I am in the way of racing more than I am getting around the track.

There is no Novice class on this track there are only Stock and 19t classes.

Thanks for all the advise.

Boomer

I honestly doubt you'll get an answer - I haven't ever seen a drifter on this thread, and I'd mock them if I had.

Drifting is to auto-racing what figure skating is to hockey.

dsm

AMEN!!!! to that Boomer.

touringdriver

iTrader: (16)

just wondering if anyone on here races parking lot onroad corse and use sway bars on the tc4? switching for tamiya to tc4, did run front and rear swaybars on the tamiyas.

DaveW

iTrader: (1)

IMO. Rarely if ever. You can MAKE the car work with sway bars... but you can raise the inner hingepin mounts to reduce excessive roll, and soften your main springs till you find a setup/compromise that gives you max grip, great rotation, and overall balance. Are you running rubber or foams on the asphalt?

touringdriver

iTrader: (16)

running rubber tires. takeoffs. running 35wt oil all around with blue springs in rear and greens in front. the rear sometimes trys to come around. thats why i was asking about swaybars.