R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 05-07-2006, 04:03 AM   #556
Tech Master
 
Kenneth Tan's Avatar
 
Join Date: Aug 2001
Location: Singapore
Posts: 1,123
Trader Rating: 1 (100%+)
Default





Any idea on how the fan is mounted by screws on the Sphere heatsink? Is it a new heatsink? Thanks.
Kenneth Tan is offline   Reply With Quote
Old 05-07-2006, 04:45 AM   #557
Tech Regular
 
Join Date: Jul 2004
Location: Kuala Lumpur Malaysia
Posts: 278
Default

kenneth

I think the heat sink is the same heat sink that comes with the set. you can either drill and tap the heat sink or you can use plastic bolt (like Novak GTB) that will be anchored in between the ribs. another option is for you to create the bolt boss using shoe goo.
azmio is offline   Reply With Quote
Old 05-07-2006, 02:13 PM   #558
Tech Initiate
 
Join Date: Feb 2004
Location: northern mich
Posts: 34
Default

i have a lrp competition sphere and it shuts off under load,has anyone had this problem?i have sent in once and the new one does the same thing.as far as i am concerned the gtb is a far better esc,i have ran one all indoor season and havent had aproblem,the lrp has not even been in for one race.seems lrp should work on their quality a little better
mc43 is offline   Reply With Quote
Old 05-07-2006, 04:29 PM   #559
Tech Champion
 
AdrianM's Avatar
 
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by mc43
i have a lrp competition sphere and it shuts off under load,has anyone had this problem?i have sent in once and the new one does the same thing.as far as i am concerned the gtb is a far better esc,i have ran one all indoor season and havent had aproblem,the lrp has not even been in for one race.seems lrp should work on their quality a little better
OK...What motor, What final drive ratio (or Roll out), How big is is your track, what car are you running? This info will let us know if you have a problem or if you did something wrong.
__________________
Adrian Martinez
What I run: Schumacher Mi5/Associated RC10R5.1/Associated RC12R5.2/Futaba/HobbyWing/Team EA Motorsports/BSR Racing
Where I run: Florida Indoor R/C Complex/Thunder Racing/Florida On Road State Series
AdrianM is offline   Reply With Quote
Old 05-07-2006, 05:38 PM   #560
Tech Initiate
 
Join Date: Feb 2004
Location: northern mich
Posts: 34
Default

flat oval track 200ft runline,4300 motor,2.55 rollout.also on same track i ran gtb,4 star lrp motor,1.75 rollout no problems at all.this is the second speed control just out of the box that did this.the winning car in 4300 was a gtb,4300,2.65 rollout and came off the track at 145 degrees
mc43 is offline   Reply With Quote
Old 05-07-2006, 10:20 PM   #561
Tech Regular
 
lookinco's Avatar
 
Join Date: Dec 2005
Posts: 257
Default

Are you sure you didn't wire anything wrong? Any short? Once some wires were grounded on the chassis and the Sphere shut down as soon as I gave it throttle to prevent it from burning up.

I am happy with my Sphere.
lookinco is offline   Reply With Quote
Old 05-07-2006, 10:43 PM   #562
Tech Champion
 
AdrianM's Avatar
 
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by mc43
flat oval track 200ft runline,4300 motor,2.55 rollout.also on same track i ran gtb,4 star lrp motor,1.75 rollout no problems at all.this is the second speed control just out of the box that did this.the winning car in 4300 was a gtb,4300,2.65 rollout and came off the track at 145 degrees
If my math is right you are MASSIVELY over geared with the 4 Star. A Reedy 4 Start is like a Velociti 5.5. Your roll out should be less than 1" with a 4 star on a track the size you run on.
__________________
Adrian Martinez
What I run: Schumacher Mi5/Associated RC10R5.1/Associated RC12R5.2/Futaba/HobbyWing/Team EA Motorsports/BSR Racing
Where I run: Florida Indoor R/C Complex/Thunder Racing/Florida On Road State Series
AdrianM is offline   Reply With Quote
Old 05-08-2006, 05:07 AM   #563
Tech Initiate
 
Join Date: Feb 2004
Location: northern mich
Posts: 34
Default

adrian the motor came off at 155 degrees after 4 minute run.that is what we have been gearing the motors to come off of the track
mc43 is offline   Reply With Quote
Old 05-08-2006, 08:50 AM   #564
Tech Champion
 
AdrianM's Avatar
 
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by mc43
adrian the motor came off at 155 degrees after 4 minute run.that is what we have been gearing the motors to come off of the track
You need to gear for lap times. Temp is secondary. I still think you are way over geared. You are gearing a 9 turn mod like a 19T.
__________________
Adrian Martinez
What I run: Schumacher Mi5/Associated RC10R5.1/Associated RC12R5.2/Futaba/HobbyWing/Team EA Motorsports/BSR Racing
Where I run: Florida Indoor R/C Complex/Thunder Racing/Florida On Road State Series
AdrianM is offline   Reply With Quote
Old 05-08-2006, 09:16 AM   #565
Tech Legend
 
Wild Cherry's Avatar
 
Join Date: Aug 2001
Location: TRCR Modified Driver
Posts: 22,595
Default I want one ...

How do you go about getting a a lrp brushless T-shirt ?
__________________
Any driver can copy a great set up, a Champion however will steal it .
If Jesus returned as a Rc car he be a Rc10 B5M
George W. Cherry
Wild Cherry is offline   Reply With Quote
Old 05-08-2006, 11:47 AM   #566
Tech Addict
 
Sleighty's Avatar
 
Join Date: May 2003
Posts: 568
Default

is the LRP sphere comp and Vector waterproof?

I didnt want to use it in the rain the last time i ran it as i wasnt sure?
__________________
A1-RC.com
Team Scream
Xray
Sleighty is offline   Reply With Quote
Old 05-08-2006, 11:53 AM   #567
Tech Elite
 
Francis M.'s Avatar
 
Join Date: Apr 2002
Location: Yorba Linda, CA
Posts: 4,719
Trader Rating: 2 (100%+)
Default

one thing I like about the LRP is that it seems to have less wires
than the other brushless systems out there. I hope they will include
a fan with the unit just like the pics posted above.

Can't wait to start racing elect again.
Francis M. is offline   Reply With Quote
Old 05-08-2006, 10:13 PM   #568
Tech Apprentice
 
kawada's Avatar
 
Join Date: Dec 2003
Posts: 63
Default

Would it gain any benefit if I replace the stock capacitor with a higher voltage one ? i would run my Sphere competition with 4 stars on a touring with Lipo .. if so, do I need to solder off the stock one or ...... ??

Pls advise, thx in advance
kawada is offline   Reply With Quote
Old 05-09-2006, 12:17 AM   #569
Tech Regular
 
rcdougie's Avatar
 
Join Date: Sep 2001
Location: Stuart, FL
Posts: 489
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by azmio
kenneth

I think the heat sink is the same heat sink that comes with the set. you can either drill and tap the heat sink or you can use plastic bolt (like Novak GTB) that will be anchored in between the ribs. another option is for you to create the bolt boss using shoe goo.

Where can you get the plastic bolts??
rcdougie is offline   Reply With Quote
Old 05-09-2006, 12:30 AM   #570
Tech Master
 
dontfeelcold's Avatar
 
Join Date: Aug 2003
Location: Where there's smoke there's a tyre
Posts: 1,721
Trader Rating: 21 (100%+)
Default

I wouldn't use plastic bolts unless they have threads to go into. Plastic bolts can usually be obtained from electronic part retailers.
dontfeelcold is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
New Novak Brushless Tekin mini rage Brushless 1/18 price to sell IOwNMkeG R/C Items: For Sale/Trade 3 05-01-2008 05:49 PM
brushless, spektrum receivers, charger, brushless losi 8 tschenck R/C Items: For Sale/Trade 17 04-08-2008 07:18 AM
WTT: 1/10 scale NIB car kits for Brushless RC18T or other Brushless 1/10 car Bohh R/C Items: For Sale/Trade 3 04-06-2008 07:26 PM
NOVAK GTB BRUSHLESS RACING ESC 2.4GHZ + 13.5 BRUSHLESS MOTOR meronr R/C Items: For Sale/Trade 12 01-29-2008 02:18 PM
Brushless B4 Brushless T4 Clodzilla 4 ThunderQuake truggy Ofna Lx Pro buggy pcnutz R/C Items: For Sale/Trade 29 12-11-2005 01:12 PM



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 07:31 AM.


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