R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-15-2010, 09:07 PM   #811
Tech Master
 
David Galdo's Avatar
 
Join Date: Aug 2001
Location: Euless, TX
Posts: 1,652
Trader Rating: 15 (100%+)
Send a message via ICQ to David Galdo Send a message via AIM to David Galdo Send a message via MSN to David Galdo Send a message via Yahoo to David Galdo
Default

Joey, you know the answer. Great!
__________________
Hot Bodies | HPI Racing | HPI TV | Speedzone USA | Team Epic | Trinity | TRC
V-Dezign 4.0
David Galdo is offline   Reply With Quote
Old 09-15-2010, 09:21 PM   #812
Tech Addict
 
eceer's Avatar
 
Join Date: Aug 2007
Posts: 563
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by ark View Post
oh yeah it takes a 48p xray spur upto 87t
Hey Ark,

Am I going to have to get new 48P spurs or will the 48P Kimboroughs from the TC be fine?
__________________
☞ Adelaide RC Team driver ☜
☞ Switchmedia ☜
☞ They're not toy cars, they are fine examples of engineering. When driven correctly are a joy to behold. ☜
eceer is offline   Reply With Quote
Old 09-15-2010, 09:36 PM   #813
ark
Tech Addict
 
Join Date: Oct 2003
Location: Australia
Posts: 703
Trader Rating: 11 (100%+)
Default

Kimbroughs will work, they just have smaller holes to get your tip through.
ark is offline   Reply With Quote
Old 09-15-2010, 09:59 PM   #814
Tech Master
 
jag88's Avatar
 
Join Date: Nov 2003
Posts: 1,075
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by David Galdo View Post
Hello Kobiwan,

In response to your post, I worked on a tiny project to fit a smaller spur and larger pinion. With this mod I was able to fit a 96 spur and 49 pinion giving me a final ratio of 3.84. I used a reamer to make the holes in the spur, I am sure a drill press or dremel would look cleaner.

I spent less than ten minutes to make mod.

Look at the attached pictures=>

Attachment 642810

Attachment 642811


Very nice. Thanks for proving it can be done.
jag88 is offline   Reply With Quote
Old 09-16-2010, 01:33 AM   #815
Tech Addict
 
AGNO's Avatar
 
Join Date: Dec 2009
Location: Firenze Italy
Posts: 609
Default

Quote:
Originally Posted by David Galdo View Post
Haha, I would have tried my fifty but it's in the 12X.

Kobiwan:: I used the Kimbrough for this mod. I am sure there are other spur brands you can use. Just be sure to leave something between the teeth and the hole you make so it remains firm. You don't want a soft spot. The pinion may stretch/crush the teeth with the torque these BL motors put out.
Try RW.
http://www.rwracing.co.uk/cars.html
__________________
Team GMV / RC electric AS Laurenziana
Hot Bodies TCXX - HW Xerun - IP - Spec-R
AGNO is offline   Reply With Quote
Old 09-16-2010, 02:50 AM   #816
Tech Master
 
David Galdo's Avatar
 
Join Date: Aug 2001
Location: Euless, TX
Posts: 1,652
Trader Rating: 15 (100%+)
Send a message via ICQ to David Galdo Send a message via AIM to David Galdo Send a message via MSN to David Galdo Send a message via Yahoo to David Galdo
Default

Ok, I made another change. I can fit a 47 pinion with a HB 110 spur. With the motor at its maximum adjustment and the pinion adjusted away from the motor so it does not make contact with the motor mount... a 110/47 combo is a 4.56 final ratio.

With the pinion out a bit, alignment with the spur is not possible. Not with my fat pinions. So I made a 2mm spacer for the spur and I then had alignment with proper mesh.

Don't flame me, but the screw behind the spur is blocked. I had to tighten the visible screw once proper mesh was made then lift the spur tightening the last screw. Sorry! The extra steps of removing the upper deck and lifting the spur is good for ya! All this for the desired final ratio with a spec 17.5 class. With this spacer and the smaller 96 spur... I won't bother guessing the possible pinion size.

Take note, I was able to use the same screws for the spur. But, if a thicker spacer is used, longer screws may be needed and avoid contact with the front belt pulley, it would not be good. I had plenty of space between the screws and front belt pulley.

Now at one time, I recall seeing really thin pinions... they would make all that I did moot.

Pics to look at=>

Attachment 642930

Attachment 642931

Here I tried a larger 55 pinion with the 96 spur. The motor is slid forward. I wanted to see if the pinion would make contact with the lower part of the motor mount... it did not. Notice the gap in the spur and pinion. Final ratio is 3.4. Where would anyone need more???

Attachment 642958
__________________
Hot Bodies | HPI Racing | HPI TV | Speedzone USA | Team Epic | Trinity | TRC
V-Dezign 4.0

Last edited by David Galdo; 03-13-2011 at 10:59 PM.
David Galdo is offline   Reply With Quote
Old 09-16-2010, 06:43 AM   #817
Tech Regular
 
Join Date: Mar 2006
Location: Pittsburgh
Posts: 465
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by AGNO View Post
Does anyone know if RW spurs will fit on the TCX?
__________________
Futaba 7PX---Xray T4 '18 ---R1 Wurks---EAMotorsports---Hobbywing
kobiwan is offline   Reply With Quote
Old 09-16-2010, 06:52 AM   #818
Tech Addict
 
AGNO's Avatar
 
Join Date: Dec 2009
Location: Firenze Italy
Posts: 609
Default

Quote:
Originally Posted by kobiwan View Post
Does anyone know if RW spurs will fit on the TCX?
Yes, I use them!

__________________
Team GMV / RC electric AS Laurenziana
Hot Bodies TCXX - HW Xerun - IP - Spec-R
AGNO is offline   Reply With Quote
Old 09-16-2010, 07:52 AM   #819
Tech Fanatic
 
bmmer701's Avatar
 
Join Date: Jun 2006
Posts: 947
Trader Rating: 17 (100%+)
Default

what's the difference between the hd motor mount and the standard motor mount for tcx/
bmmer701 is offline   Reply With Quote
Old 09-16-2010, 10:32 AM   #820
Tech Master
 
jag88's Avatar
 
Join Date: Nov 2003
Posts: 1,075
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by David Galdo View Post
Ok, I made another change. I can fit a 47 pinion with a HB 110 spur. With the motor at its maximum adjustment and the pinion adjusted away from the motor so it does not make contact with the motor mount... a 110/47 combo is a 4.56 final ratio.

With the pinion out a bit, alignment with the spur is not possible. Not with my fat pinions. So I made a 2mm spacer for the spur and I then had alignment with proper mesh.

Don't flame me, but the screw behind the spur is blocked. I had to tighten the visible screw once proper mesh was made then lift the spur tightening the last screw. Sorry! The extra steps of removing the upper deck and lifting the spur is good for ya! All this for the desired final ratio with a spec 17.5 class. With this spacer and the smaller 96 spur... I won't bother guessing the possible pinion size.

Take note, I was able to use the same screws for the spur. But, if a thicker spacer is used, longer screws may be needed and avoid contact with the front belt pulley, it would not be good. I had plenty of space between the screws and front belt pulley.

Now at one time, I recall seeing really thin pinions... they would make all that I did moot.

Pics to look at=>

Attachment 642930

Attachment 642931

Here I tried a larger 55 pinion with the 96 spur. The motor is slid forward. I wanted to see if the pinion would make contact with the lower part of the motor mount... it did not. Notice the gap in the spur and pinion. Final ratio is 3.4. Where would anyone need more???

Attachment 642958


OK, what are you saying, that in fact you CAN'T get at the back motor screw as you stated on the previous page in post #800 ?
jag88 is offline   Reply With Quote
Old 09-16-2010, 10:38 AM   #821
Tech Master
 
David Galdo's Avatar
 
Join Date: Aug 2001
Location: Euless, TX
Posts: 1,652
Trader Rating: 15 (100%+)
Send a message via ICQ to David Galdo Send a message via AIM to David Galdo Send a message via MSN to David Galdo Send a message via Yahoo to David Galdo
Default

Quote:
Originally Posted by jag88 View Post
OK, what are you saying, that in fact you CAN'T get at the back motor screw as you stated on the previous page in post #800 ?
At a certain point as the pinion gets larger, the tool will not meet the screw through the spur. Removing more from the spur is obviously not good, so it is simpler to remove the top deck and lift the spur out of the way enough to tighten the screw. Not a big deal at all.

Again, this is all for Spec 17.5. I don't plan to run it so I am not affected, but I am now prepared to.
__________________
Hot Bodies | HPI Racing | HPI TV | Speedzone USA | Team Epic | Trinity | TRC
V-Dezign 4.0
David Galdo is offline   Reply With Quote
Old 09-16-2010, 11:00 AM   #822
Tech Master
 
jag88's Avatar
 
Join Date: Nov 2003
Posts: 1,075
Trader Rating: 1 (100%+)
Default

OK, lets get this straight. In post #800 you show a wrench going through a 96t spur with a 49t pinion not quite properly meshed up. Is the tool ON the screw and capable of tightening it WITHOUT removing the top deck and lifting the spur ?
jag88 is offline   Reply With Quote
Old 09-16-2010, 12:24 PM   #823
Tech Master
 
David Galdo's Avatar
 
Join Date: Aug 2001
Location: Euless, TX
Posts: 1,652
Trader Rating: 15 (100%+)
Send a message via ICQ to David Galdo Send a message via AIM to David Galdo Send a message via MSN to David Galdo Send a message via Yahoo to David Galdo
Default

Quote:
Originally Posted by jag88 View Post
OK, lets get this straight. In post #800 you show a wrench going through a 96t spur with a 49t pinion not quite properly meshed up. Is the tool ON the screw and capable of tightening it WITHOUT removing the top deck and lifting the spur ?
You are correct, that scenario in that post worked. If you used a pinion larger the tool would not meet the screw.

My recent post was to see what I could do if I moved the pinion and spur 2MM.

There are two, really one obstacle to deal with... The motor mount. Lifting the spur is not a big deal.

Again, this is to see what was possible for running Spec timing with a 17.5. If I first had arrived to the last change, the spacer for the spur, I would not have bothered putting holes in the spur. Removing the top deck and lifting the spur is simpler to me.

__________________
Hot Bodies | HPI Racing | HPI TV | Speedzone USA | Team Epic | Trinity | TRC
V-Dezign 4.0

Last edited by David Galdo; 09-16-2010 at 12:52 PM.
David Galdo is offline   Reply With Quote
Old 09-16-2010, 02:27 PM   #824
Tech Master
 
jag88's Avatar
 
Join Date: Nov 2003
Posts: 1,075
Trader Rating: 1 (100%+)
Talking

Quote:
Originally Posted by David Galdo View Post
You are correct, that scenario in that post worked. If you used a pinion larger the tool would not meet the screw.

My recent post was to see what I could do if I moved the pinion and spur 2MM.

There are two, really one obstacle to deal with... The motor mount. Lifting the spur is not a big deal.

Again, this is to see what was possible for running Spec timing with a 17.5. If I first had arrived to the last change, the spacer for the spur, I would not have bothered putting holes in the spur. Removing the top deck and lifting the spur is simpler to me.



Thanks for clearing that up.
jag88 is offline   Reply With Quote
Old 09-16-2010, 09:29 PM   #825
Tech Elite
 
transplantlife's Avatar
 
Join Date: Oct 2008
Location: Chicago, IL/St.Petersburg,FL
Posts: 2,073
Trader Rating: 43 (98%+)
Default

Hey guys should have my tcx tomorrow i hope. Wanted have you got any build tips? Thanx.
__________________
IM A SURVIOR OF A DOUBLE ORGAN TRANSPLANT KIDNEY/PANCREAS...PLEASE BE A ORGAN DONOR TO GIVE LIFE TO OTHERS!!
transplantlife is offline   Reply With Quote
Reply



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 08:45 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net