R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-11-2007, 10:39 AM   #9601
Tech Master
 
Deves's Avatar
 
Join Date: Oct 2001
Location: SOCAL
Posts: 769
Trader Rating: 2 (100%+)
Default

What is the calculation for figuring the drive ratio with the 18 tooth pulley?
I know that spur divided by pinion times the transmission drive = the Fdr but how do you figure the transmission drive ratio with the different center pulleys?

I don't know if I'm making myself clear or not.....does anybody know what i'm trying to say here???

Deves is offline   Reply With Quote
Old 09-11-2007, 10:42 AM   #9602
Tech Master
 
Deves's Avatar
 
Join Date: Oct 2001
Location: SOCAL
Posts: 769
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by Deves View Post
Does anybody know if the shocks from 3-racing come filled with oil?.

I opened them up and there was only a small amount of oil in each one....so I answered my own question....
Deves is offline   Reply With Quote
Old 09-11-2007, 10:54 AM   #9603
Tech Elite
 
ShaunMac's Avatar
 
Join Date: Jun 2006
Location: Loading...
Posts: 3,371
Default

Transmission ratio = 39T Axle Pulley / 16T or 18T layshaft pulley
16T = 2.44 stock ratio
18T = 2.17

FDR = spur/pinion x transmission ratio
ShaunMac is offline   Reply With Quote
Old 09-11-2007, 11:34 AM   #9604
Tech Adept
 
Stew Noble's Avatar
 
Join Date: Oct 2005
Location: Team Ian
Posts: 210
Default

Quote:
Originally Posted by Dan Hughes View Post
The new pulleys are better for getting mod gearing right on tighter tracks. The original pulleys are 16t.
The transmission is much more free with 18T pulleys and new longer belts too
__________________
// S N F //
Stew Noble is offline   Reply With Quote
Old 09-11-2007, 01:04 PM   #9605
Tech Master
 
Deves's Avatar
 
Join Date: Oct 2001
Location: SOCAL
Posts: 769
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by ShaunMac View Post
Transmission ratio = 39T Axle Pulley / 16T or 18T layshaft pulley
16T = 2.44 stock ratio
18T = 2.17

FDR = spur/pinion x transmission ratio
Thanks ShaunMac! That's what I was looking for.
Deves is offline   Reply With Quote
Old 09-11-2007, 01:06 PM   #9606
Tech Regular
 
Join Date: May 2007
Location: Netherlands
Posts: 335
Exclamation FASTEDDY

Quote:
Originally Posted by Deves View Post
What is the calculation for figuring the drive ratio with the 18 tooth pulley?
I know that spur divided by pinion times the transmission drive = the Fdr but how do you figure the transmission drive ratio with the different center pulleys?

I don't know if I'm making myself clear or not.....does anybody know what i'm trying to say here???

If you divide the big pulley through the small pulley + spur gear through the pinion gear you have your reduction rate
Example:
39 belt pulley/18 pulley = 2.166
108 spurgear/28 pinion = 3.857
6.023
This is what you looking for i hope ?
eded1 is offline   Reply With Quote
Old 09-11-2007, 03:01 PM   #9607
Tech Elite
 
Vicko's Avatar
 
Join Date: Nov 2006
Posts: 2,025
Trader Rating: 14 (100%+)
Default

so then is HB also goin to bring out new front and rear belts with the
18t pullys? if nots what belts are we goin to have to use?
Vicko is offline   Reply With Quote
Old 09-11-2007, 03:07 PM   #9608
Tech Adept
 
Stew Noble's Avatar
 
Join Date: Oct 2005
Location: Team Ian
Posts: 210
Default

Quote:
Originally Posted by Vicko View Post
so then is HB also goin to bring out new front and rear belts with the
18t pullys? if nots what belts are we goin to have to use?
Yes, new longer belts will be available to compliment the 18T pulleys.
__________________
// S N F //
Stew Noble is offline   Reply With Quote
Old 09-11-2007, 03:16 PM   #9609
Tech Master
 
padailey's Avatar
 
Join Date: Nov 2005
Location: Council Bluffs, IA
Posts: 1,603
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by Stew Noble View Post
Yes, new longer belts will be available to compliment the 18T pulleys.
Any idea when? If not soon what's the alternative ...MI3 front/Yok BD rear?
padailey is offline   Reply With Quote
Old 09-11-2007, 03:42 PM   #9610
Tech Adept
 
Stew Noble's Avatar
 
Join Date: Oct 2005
Location: Team Ian
Posts: 210
Default

Quote:
Originally Posted by padailey View Post
Any idea when? If not soon what's the alternative ...MI3 front/Yok BD rear?
I assume they will be released at the same time as the pulleys, end of this month or early October...
__________________
// S N F //
Stew Noble is offline   Reply With Quote
Old 09-11-2007, 05:08 PM   #9611
Tech Elite
 
Vicko's Avatar
 
Join Date: Nov 2006
Posts: 2,025
Trader Rating: 14 (100%+)
Default

it would be nice if someone post up here when the pully and belts come out
Vicko is offline   Reply With Quote
Old 09-11-2007, 07:11 PM   #9612
Tech Master
 
padailey's Avatar
 
Join Date: Nov 2005
Location: Council Bluffs, IA
Posts: 1,603
Trader Rating: 11 (100%+)
Default

I have a question about the differences between the Cyclone and the "S". I have an "S" that I have upgraded with quite a bit of 3racing parts. In particular I'm wondering about the chassis. Are the "S" chassis and the Cyclone chassis the same size/dimensions basically? My problem is that the steering turnbuckles hit the FR pivot block. It isn't that bad but I've tried some setups that require the blocks to be raised. There is absolutely no way I can do this... the turnbuckles hit the blocks so bad I can only get about 1/4 of the normal steering throw. Would a Cyclone chassis fix this issue? Any thoughts?
padailey is offline   Reply With Quote
Old 09-11-2007, 07:14 PM   #9613
Tech Elite
 
BlackedOutREVO's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2007
Location: CA
Posts: 3,790
Trader Rating: 67 (100%+)
Default

Quote:
Originally Posted by padailey View Post
I have a question about the differences between the Cyclone and the "S". I have an "S" that I have upgraded with quite a bit of 3racing parts. In particular I'm wondering about the chassis. Are the "S" chassis and the Cyclone chassis the same size/dimensions basically? My problem is that the steering turnbuckles hit the FR pivot block. It isn't that bad but I've tried some setups that require the blocks to be raised. There is absolutely no way I can do this... the turnbuckles hit the blocks so bad I can only get about 1/4 of the normal steering throw. Would a Cyclone chassis fix this issue? Any thoughts?
I know on the newer kits, the blocks are shaved

Mine are shaved out so the turnbuckles wont hit
__________________
R1 Wurks/Awesomatix USA/Roche USA/Protoform/Solaris/Mo Speed/Speedworld Raceway
BlackedOutREVO is offline   Reply With Quote
Old 09-11-2007, 09:24 PM   #9614
Tech Champion
 
rc-zombies's Avatar
 
Join Date: Aug 2001
Location: NorCal. Napa area
Posts: 7,218
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by padailey View Post
Any idea when? If not soon what's the alternative ...MI3 front/Yok BD rear?
that's what I'm using now with the 3Racing 18T pulley.
__________________
HB WCE HARA EDITION CYCLONE: LRP Sphere TC, KO 2363 digital servo.
HB HARA EDITION PRO4: Gone to a new home..

SPEEDTECH|FUTABA|KO|ORION|SPEEDWORLD|HARA
rc-zombies is offline   Reply With Quote
Old 09-12-2007, 06:30 AM   #9615
Tech Regular
 
Join Date: May 2004
Posts: 472
Default

Guys what is the difference with the stock 16t and 18t pully? what is the purpose to go from the 16t to 18t? do it make the car go faster or as someone state before it just free up the car, and do you put the pullys on both sides or just the one that go to the front diff, sorry for all the ????? but when learning about setting up a car all the info you get will help, thank you.
Ramyuras is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hot Bodies Cyclone S wardyl Electric On-Road 4 10-01-2008 07:01 AM
Hot bodies Cyclone 12 k7king R/C Items: For Sale/Trade 1 09-04-2008 07:09 AM
WTB Hot Bodies Cyclone/ cyclone Parts tenpins77 R/C Items: Wanted to Buy 0 07-29-2008 07:48 AM
Hot Bodies Cyclone sdt1 Australia For Sale/Trade 6 07-13-2008 02:05 AM
WTB: Cyclone S/Cyclone Painted bodies vazzo Australia Wanted to Buy 0 02-05-2008 05:15 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 10:42 AM.


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