R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 01-17-2008, 10:17 PM   #9151
Tech Fanatic
 
Join Date: Nov 2006
Posts: 992
Trader Rating: 22 (100%+)
Default

Quote:
Originally Posted by majicman View Post
I got a ss17.5 pro to run this weekend at my club race (parking lot track). Any idea how I should/can gear this thing in my tc4?

The instructions out of the package say two teeth up from a brushed 27t, the tc4 instructions recommend you to run a 28t on a 27 turn motor which would put the starting point at a 30t does that seem a bit undergeared for a motor that only puts out 2,200kv?

I am planning to run LIPO with this, I can geared it as high as 69/32 with my available pinoin selection which puts it at 5.39 FDR.

Any advise would be greatly appreciated.
with the 17.5, try to get the fdr down to mid 4's Trust me it will take even more
__________________
"I can't be any clearer, on how crystal clear I am being"
convikt is offline   Reply With Quote
Old 01-17-2008, 10:27 PM   #9152
Tech Regular
 
majicman's Avatar
 
Join Date: Jun 2005
Location: San Diego, CA
Posts: 373
Default

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.
majicman is offline   Reply With Quote
Old 01-17-2008, 10:49 PM   #9153
Tech Fanatic
 
Join Date: Nov 2006
Posts: 992
Trader Rating: 22 (100%+)
Default

Quote:
Originally Posted by majicman View Post
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.
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
__________________
"I can't be any clearer, on how crystal clear I am being"
convikt is offline   Reply With Quote
Old 01-17-2008, 10:51 PM   #9154
Tech Regular
 
majicman's Avatar
 
Join Date: Jun 2005
Location: San Diego, CA
Posts: 373
Default

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
majicman is offline   Reply With Quote
Old 01-17-2008, 10:58 PM   #9155
Tech Fanatic
 
Join Date: Nov 2006
Posts: 992
Trader Rating: 22 (100%+)
Default

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.
__________________
"I can't be any clearer, on how crystal clear I am being"
convikt is offline   Reply With Quote
Old 01-17-2008, 11:09 PM   #9156
Tech Regular
 
majicman's Avatar
 
Join Date: Jun 2005
Location: San Diego, CA
Posts: 373
Default

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.
majicman is offline   Reply With Quote
Old 01-18-2008, 12:22 AM   #9157
Tech Master
 
DRAG_ON's Avatar
 
Join Date: Feb 2006
Location: Ibanez,Cort,Yamaha
Posts: 1,783
Default

Quote:
Originally Posted by convikt View Post
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
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
__________________
Freq:29.945, car no:29, W.A.R.C.M.C.C, http://projectm-design.blogspot.com/
DRAG_ON is offline   Reply With Quote
Old 01-18-2008, 02:06 AM   #9158
Tech Regular
 
paul73rc's Avatar
 
Join Date: Apr 2007
Location: Gold Coast, QLD
Posts: 443
Trader Rating: 5 (78%+)
Default

Is a TC4 a good DRIFTER???????????????
__________________
paul73rc
paul73rc is offline   Reply With Quote
Old 01-18-2008, 06:23 AM   #9159
Tech Fanatic
 
Join Date: Nov 2006
Posts: 992
Trader Rating: 22 (100%+)
Default

Quote:
Originally Posted by DRAG_ON View Post
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

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
__________________
"I can't be any clearer, on how crystal clear I am being"
convikt is offline   Reply With Quote
Old 01-18-2008, 09:14 AM   #9160
Tech Regular
 
majicman's Avatar
 
Join Date: Jun 2005
Location: San Diego, CA
Posts: 373
Default

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.
majicman is offline   Reply With Quote
Old 01-18-2008, 10:41 AM   #9161
Tech Elite
 
Boomer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Feb 2002
Location: Southern Cal - Claremont
Posts: 3,337
Send a message via ICQ to Boomer Send a message via AIM to Boomer
Default

Quote:
Originally Posted by paul73rc View Post
Is a TC4 a good DRIFTER???????????????
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.
__________________
-
RC10L2.5W - RC12.4 - RCNTC3(bmi) - TC4 (modded) - B44.2 - plus rent-a-rides! :D
Boomer is offline   Reply With Quote
Old 01-18-2008, 01:44 PM   #9162
dsm
Tech Apprentice
 
dsm's Avatar
 
Join Date: Nov 2004
Location: E TOWN TN
Posts: 88
Default

AMEN!!!! to that Boomer.
dsm is offline   Reply With Quote
Old 01-18-2008, 09:37 PM   #9163
Tech Champion
 
touringdriver's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2007
Location: RICKY RACERVILLE
Posts: 5,198
Trader Rating: 15 (100%+)
Default

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.
__________________
Proudly Sponsored by: Mr. Crash Racing, RickyRacer lidz & Ebay..
Rock Chalk Jayhawks
2014 Subway Cup & Dee and Mees On-road Race Schedule:
http://www.rctech.net/forum/kansas-m...l#post11891510
touringdriver is offline   Reply With Quote
Old 01-19-2008, 02:05 AM   #9164
Tech Elite
 
DaveW's Avatar
 
Join Date: Mar 2003
Location: Mobile, AL
Posts: 2,960
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by touringdriver View Post
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.
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?
DaveW is offline   Reply With Quote
Old 01-20-2008, 11:46 PM   #9165
Tech Champion
 
touringdriver's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2007
Location: RICKY RACERVILLE
Posts: 5,198
Trader Rating: 15 (100%+)
Default

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.
__________________
Proudly Sponsored by: Mr. Crash Racing, RickyRacer lidz & Ebay..
Rock Chalk Jayhawks
2014 Subway Cup & Dee and Mees On-road Race Schedule:
http://www.rctech.net/forum/kansas-m...l#post11891510
touringdriver is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Team Losi XXXS G+ with parts!! Team Orion V2 Hitec 5625 cola R/C Items: For Sale/Trade 9 06-18-2008 08:11 PM
BATTERIES - Team Orion 4200 SHO Team Cells (6 cell) packs................... For Sale 2-Bad Australia For Sale/Trade 0 03-21-2008 02:16 AM
New Items for Sale Tamiya F103gt Chassis Kit, Team Much More CTX-D, Novak, Team Orion Tsquare R/C Items: For Sale/Trade 14 04-17-2007 08:29 PM
>>> BRAND STINKING NEW NEVER RAN TEAM JAMMIN FACTORY TEAM FTE RACING BUGGY <<<< mach51 R/C Items: For Sale/Trade 5 01-25-2007 09:13 PM
F/S Team Associated Factory Team RC18T with Mamba Comp X Brushless and Extras ZeroCool101 R/C Items: For Sale/Trade 7 01-07-2006 01:54 PM



Currently Active Users Viewing This Thread: 2 (1 members and 1 guests)
longuylander
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 03:47 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0