Go Back   oOple.com Forums > Car Talk > Schumacher

Reply
 
Thread Tools Display Modes
  #1  
Old 03-07-2012
toddzellia's Avatar
toddzellia toddzellia is offline
Member
 
Join Date: Dec 2011
Location: STOCKHOLM SWEDEN
Posts: 153
Question Help with gearing/new track astro/dirt

I have a cougar sv pro are new track is half astro and dirt ,I am running a 10.5 120a motor combo,24/80 gearing stagard rib ft mini spike back.Now more power ? Change gearing ? What timing ? And help would be greatly appreciated
Cheers.
__________________
[FONT=Comic Sans MS]TEAM ASSOCIATED -B4.2 & SC10 4x4
[FONT=Comic Sans MS]LOSI MINI 8
[FONT=Comic Sans MS]MUGEN MBX 6 Eco M-spec
SWORKS-S104 EK1
Reply With Quote
  #2  
Old 03-07-2012
rollingon4's Avatar
rollingon4 rollingon4 is offline
Member
 
Join Date: May 2012
Location: Bridport, Dorset
Posts: 111
Default

Hi there, I've been using the below as a ballpark gearing guide for my cougar:

http://www.teamnovak.com/tech_info/b...r_gearing.html

With a 10.5t motor that would mean a 26t pinion with your 80t spur to give a FDR of 8.0 if you haven't changed the internal gearing from standard. I'm no genius though so I'm sure someone has a better suggestion
__________________
www.worm-racing.co.uk outdoor racing at Weston-Super-Mare
www.yrcc.co.uk indoor racing at Yatton
www.southwestrc.co.uk for parts
Reply With Quote
  #3  
Old 04-07-2012
toddzellia's Avatar
toddzellia toddzellia is offline
Member
 
Join Date: Dec 2011
Location: STOCKHOLM SWEDEN
Posts: 153
Default

Cheers but I was told that if you have a smaller pion you will have more top end but Iam no expert .
__________________
[FONT=Comic Sans MS]TEAM ASSOCIATED -B4.2 & SC10 4x4
[FONT=Comic Sans MS]LOSI MINI 8
[FONT=Comic Sans MS]MUGEN MBX 6 Eco M-spec
SWORKS-S104 EK1
Reply With Quote
  #4  
Old 04-07-2012
Ralls Racing Ralls Racing is offline
oOple Advertiser
 
Join Date: May 2012
Location: birchington
Posts: 212
Default

the advice given is correct. 26-27 tooth is a good starting point and will give more top speed
__________________
www.rallsracing.com HPI, Answer Rc, Rc Disco, Pace Design
Reply With Quote
  #5  
Old 04-07-2012
toddzellia's Avatar
toddzellia toddzellia is offline
Member
 
Join Date: Dec 2011
Location: STOCKHOLM SWEDEN
Posts: 153
Default

Cheers.....
__________________
[FONT=Comic Sans MS]TEAM ASSOCIATED -B4.2 & SC10 4x4
[FONT=Comic Sans MS]LOSI MINI 8
[FONT=Comic Sans MS]MUGEN MBX 6 Eco M-spec
SWORKS-S104 EK1
Reply With Quote
  #6  
Old 04-07-2012
ian h's Avatar
ian h ian h is offline
Mad Member
 
Join Date: Mar 2009
Location: Dublin
Posts: 1,008
Default

Whenever I've ran a 10.5 I usually ran 78/27. Considering half your track is dirt I would consider a smaller spur like a 76 and a 26 pinion.
This will move the motor back slightly and help give a little more weight to the rear to aid traction.
Reply With Quote
  #7  
Old 05-07-2012
toddzellia's Avatar
toddzellia toddzellia is offline
Member
 
Join Date: Dec 2011
Location: STOCKHOLM SWEDEN
Posts: 153
Default

Thats good to know but schumacher has only 80-83 spur do you know another place or a another brand that will fit
__________________
[FONT=Comic Sans MS]TEAM ASSOCIATED -B4.2 & SC10 4x4
[FONT=Comic Sans MS]LOSI MINI 8
[FONT=Comic Sans MS]MUGEN MBX 6 Eco M-spec
SWORKS-S104 EK1
Reply With Quote
  #8  
Old 05-07-2012
ian h's Avatar
ian h ian h is offline
Mad Member
 
Join Date: Mar 2009
Location: Dublin
Posts: 1,008
Default

Quote:
Originally Posted by toddzellia View Post
Thats good to know but schumacher has only 80-83 spur do you know another place or a another brand that will fit
RW racing
Reply With Quote
  #9  
Old 05-07-2012
Chris_d's Avatar
Chris_d Chris_d is offline
Member
 
Join Date: Mar 2012
Posts: 27
Default

I run with a 7.5t motor, schulze esc, standard cougar internal gearing and a 26/80 ratio on astro at Southport. I'm slightly down on top speed but still have plenty of torque left at mid throttle.

I suggest a 26 or 27 pinion to start with. does any one have the calculations for FDR on a cougar
Reply With Quote
  #10  
Old 05-07-2012
rollingon4's Avatar
rollingon4 rollingon4 is offline
Member
 
Join Date: May 2012
Location: Bridport, Dorset
Posts: 111
Default

Try the FDR calculator at the bottom of this page:

http://driftmission.com/tools/

Countersteer Ratio/Final Drive Ratio is your internal gearbox ratio which as standard is I believe 2.6

If you've got an Android phone I use a free app called Gears from Nor-cal Hobbies, there are loads kicking about though...

PS - If you're down on top speed I found the biggest difference was changing/updating ESC software as you're geared high anyway
__________________
www.worm-racing.co.uk outdoor racing at Weston-Super-Mare
www.yrcc.co.uk indoor racing at Yatton
www.southwestrc.co.uk for parts
Reply With Quote
  #11  
Old 05-07-2012
Chris_d's Avatar
Chris_d Chris_d is offline
Member
 
Join Date: Mar 2012
Posts: 27
Default

bit of stupid moment really... I knew the internal was 2.6 and i knew my external ratio, not entirely sure why i didn't do the rest really..

I thought 8 FDR was about right, its probably the motor not being a real 7.5t (ebay special) its coming off warm ish so I may go up a little further see what happens.
Reply With Quote
  #12  
Old 05-07-2012
toddzellia's Avatar
toddzellia toddzellia is offline
Member
 
Join Date: Dec 2011
Location: STOCKHOLM SWEDEN
Posts: 153
Default

Quote:
Originally Posted by ian h View Post
RW racing
Thanks but all I saw was 80-83 but I wrote them an email to see if they could help me out CHEERS.
__________________
[FONT=Comic Sans MS]TEAM ASSOCIATED -B4.2 & SC10 4x4
[FONT=Comic Sans MS]LOSI MINI 8
[FONT=Comic Sans MS]MUGEN MBX 6 Eco M-spec
SWORKS-S104 EK1
Reply With Quote
  #13  
Old 05-07-2012
ian h's Avatar
ian h ian h is offline
Mad Member
 
Join Date: Mar 2009
Location: Dublin
Posts: 1,008
Default

[QUOTE=toddzellia;671568]Thanks but all I saw was 80-83 but I wrote them an email to see if they could help me out CHEERS.[/



Due to customer demand from around the globe, we have again increased the range of spurs we produce for the Schumacher Cat SX & Cougar SV. Just added to the current range of 78T thru 83T are the following,

72T

74T

76T

Posted by RW Racing at 03:07 1 comment:
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT. The time now is 02:58 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
oOple.com