R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 11-05-2007, 05:56 AM   #22876
Tech Regular
 
Shawn Palmer's Avatar
 
Join Date: Sep 2003
Location: Speed Passion USA Support HQ
Posts: 498
Default

JayBee,
I'm not a big fan of balancing personally, and the recomendation for the CORE packs is just don't worry about it.

If you want to balance them, just about any balancing charger/accessory will do a good job for you.
__________________
Shawn Palmer
Speed Passion USA Sales Manager
USAsupport <at> King-Golden <dot> com
www.SpeedPassion.net
www.SpeedPowerrc.com
Shawn Palmer is offline   Reply With Quote
Old 11-05-2007, 06:23 AM   #22877
Regional Moderator
 
Darkseid's Avatar
 
Join Date: Aug 2001
Location: At my computer, duh...
Posts: 9,033
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by MagicMarker View Post
Team Schui had another great weekend. A couple A-main finishes and lots of interests in the car. Check out the results and the facility:
www.hobbyplexraceway.com
2007 Midwest Carpet Onroad Championships November 1st-4th

Thanks to Andrew Doherty for letting me run his car to a third place finish in the As and to McGoo for his great setup. And thanks to Ken Mckinney for saving me a pit spot and working with me for both us to get to the As.

L8R Marker
It was a good race out there this weekend. Absolutely unbelievable racing facility!

I'd also like to thank Ken Mckinney for having one of those little azz screws from the hinge pins for me. And letting me stand around staring at his car.

Although I didn't put on a very good show with my driving, the car was terrific. I'll just have to pick a slower class next time!
Darkseid is offline   Reply With Quote
Old 11-05-2007, 12:32 PM   #22878
Tech Addict
 
IslandBwoy's Avatar
 
Join Date: Nov 2004
Location: Orlando, FL
Posts: 602
Default

Quote:
Originally Posted by dawgmeat View Post
this is the core pack slide right in
What brand spring is that in the front? I'm thinking to by a set but not sure if to go with the Shui's or if there is a different brand that provides springs the same length in finer increments. Could have definitely used a different spring this past weekend.

R.
IslandBwoy is offline   Reply With Quote
Old 11-05-2007, 12:49 PM   #22879
Tech Master
 
Sigearhead's Avatar
 
Join Date: Aug 2001
Location: Northern Kentucky
Posts: 1,815
Trader Rating: 68 (100%+)
Default

I use Xray springs and they work great and come in finer incriments. You can use AE springs as well but they are shorter.
Sigearhead is offline   Reply With Quote
Old 11-05-2007, 01:00 PM   #22880
Registered User
 
Join Date: Aug 2007
Posts: 27
Default

Hi thanks for the great thread chaps but I need a little help after going brushless I need some help with gearing does anybody have a link to a good Gear Chart to use with my Mi3

Thanks in advance
Mi3-Racer is offline   Reply With Quote
Old 11-05-2007, 01:11 PM   #22881
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 25,573
Trader Rating: 150 (100%+)
Default

Quote:
Originally Posted by IslandBwoy View Post
What brand spring is that in the front? I'm thinking to by a set but not sure if to go with the Shui's or if there is a different brand that provides springs the same length in finer increments. Could have definitely used a different spring this past weekend.

R.
im pretty sure he is using HPI springs, but you can use AE,Tamiyas(my favorite)or xrays
Marcos.J is offline   Reply With Quote
Old 11-05-2007, 01:31 PM   #22882
Tech Fanatic
 
Join Date: Jun 2002
Location: Gold Coast Australia
Posts: 800
Trader Rating: 1 (100%+)
Default

www.gearchart.com
then go to gearchart creator
Barger is offline   Reply With Quote
Old 11-05-2007, 01:38 PM   #22883
Registered User
 
Join Date: Aug 2007
Posts: 27
Default

Wow speedy reply thanks Barger
Mi3-Racer is offline   Reply With Quote
Old 11-05-2007, 01:45 PM   #22884
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 25,573
Trader Rating: 150 (100%+)
Default

Quote:
Originally Posted by Mi3-Racer View Post
Hi thanks for the great thread chaps but I need a little help after going brushless I need some help with gearing does anybody have a link to a good Gear Chart to use with my Mi3

Thanks in advance
what motor are you running?
Marcos.J is offline   Reply With Quote
Old 11-05-2007, 03:05 PM   #22885
Tech Elite
 
yyhayyim's Avatar
 
Join Date: May 2006
Location: Weston, FL
Posts: 3,424
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by Marcos.J View Post
lol looks good!! you missed out on some great racing today!! you need to make it to the next race!! Im working on another car
I knew it...its the TM E4 at the R4 this weekend
yyhayyim is offline   Reply With Quote
Old 11-05-2007, 03:14 PM   #22886
Tech Master
 
Big Features's Avatar
 
Join Date: Oct 2007
Location: Currituck, North Carolina
Posts: 1,871
Trader Rating: 4 (100%+)
Default

Adam / Sean,


You've got PM
__________________
Mike Kling
Team Associated REEDY Powered
JConcepts TXD Skin Graphix
Big Features is offline   Reply With Quote
Old 11-05-2007, 03:16 PM   #22887
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,580
Default

Quote:
Originally Posted by Shawn Palmer View Post
Hey Guys,

I wrote a comprehensive FAQ and care-and-feeding guide to the CORE lipos that's currently buried somewhere on the website, but here is a direct link:

http://www.secureonlineshopping.biz/...&pagewidth=550

I've been Lipo and brushless only since '03 in cars (and for much longer in aircraft) and it's about time everyone else is finally accepting the ease of use, simplicity and FUN that running them brings back into racing/bashing. We in the car world are YEARS behind the power system understanding curve when compared to the flight side of the hobby. Fortunately the slow seeping in of brushless/Lipo tech into the car side has now become a flood of new products and information.

While setup is certainly not my personal forte, you can consider me your personal power consultant and guide to help navigate you through the array of "new" technology now coming into our use like wildfire.

I've been pounding the first production CORE lipo pack almost daily since I pried it out of Adrian's hands back in June and it's still performing at 100%. The coolest thing about it (pun intended) is there isn't anything I can throw at it in a car that even comes close to it's capability limit. I've even had it in our GTRe 8th scale onroad car to the tune of 60mph, and where a couple Mamba Max systems did NOT survive a full run - the CORE pack had heated up to a whopping 10deg above ambient temp.

My other favorite feature about it is that I can show up to the track early on race day, or on a practice day and run a solid and continuous 30 minutes of practice time. No "peak" to get over in the first few laps, and no power decline through the entire run - just consistent power lap after lap for a half an hour. I don't know about you guys, but that much practice time is like GOLD for me.
Just seen this on a UK forum, has anyone else experienced what they think are performance increases with Lipo, depending on charge rates?


Lower Amp Charge = More Speed?

This is one test I will have to try again but ....

Sundays Aldershot meeting.
2x Trackpower 4900 LiPo

The two packs were charged up on Saturday evening (had used them during the day) and they were charged from the mains at 4A (maximum charged rate on my charger), now on Sunday when they were recharged I decided that as I have time I would only charge them at 3A.
Now my first 2 runs (slightly messy, must learn to drive) were only 19 lappers, but the 3rd (and final qually) the car felt smoother but faster enableling me to set a 20 lapper and a new personal best.
Now in the finals (2 legs) I am sure I had much more straight line speed as well as a smoother power band.
Now the only thing changed was the drop in charge rate to 3A, so is this something new with LiPo that a slower charge can give more power?

As I said at the top, I will have to try this again ('cos I like to post only facts)
__________________
Xray T4'17, T4'14 (Wet Car)
Xray X12 2017
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RCDisco.co.uk
Skiddins is offline   Reply With Quote
Old 11-05-2007, 03:32 PM   #22888
Tech Champion
 
AdrianM's Avatar
 
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)
Default

To McGoo or Goetz:

How tight are your front diffs vs. your rear diffs for stock foam TC? What diff lube do you use?
__________________
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 11-05-2007, 03:47 PM   #22889
Tech Regular
 
Shawn Palmer's Avatar
 
Join Date: Sep 2003
Location: Speed Passion USA Support HQ
Posts: 498
Default

Hi Skiddins,

Generally a different charge rate will make zero difference in performance. 1 amp, or the maximum - the output will all be the same.

BUT - I suspect one of two other lipo eccentricities were in play there:

1) Temperature
Cold packs don't perform as well as warm ones. If the pack started at the ambient outside temp early in the day (50F) it would be a little sluggish. But after a few discharge cycles (and warming ambient temps) to build a little heat into it (maybe 80F?) it would have felt stronger out of the turns and faster down the straight. A lipo's peak performnce temperature is about 100F, and they usually start showing a noticable drop in performance around 60F or below.

2) Are the packs brand new?
A pack's performance will IMPROVE over the first 20 cycles or so. What you see on run #1 of a new pack will be different than what you see on run #20 and up. I don't know what crazy technical chemistry is going on inside the cells to cause it, but it's a documented reality that it takes around 20+ cycles to "break in" the pack to it's peak performing level. It's easy to see the difference between cycle 1, 2, 3 and so on on a graphing discharger, but I suppose a racer with a very discerning eye might be able to see improvement from one run to the next?

I'd presume it was #1 more than anything, but I can assure you charge rate didn't have anything to do with it. :-)
__________________
Shawn Palmer
Speed Passion USA Sales Manager
USAsupport <at> King-Golden <dot> com
www.SpeedPassion.net
www.SpeedPowerrc.com
Shawn Palmer is offline   Reply With Quote
Old 11-05-2007, 04:33 PM   #22890
Tech Elite
 
Join Date: Sep 2001
Location: Minnesota
Posts: 3,652
Trader Rating: 71 (100%+)
Default

Adrian,

Not McGoo or Geotz, but I might be able to help. Front diff is set a "little" tighter than the rear and Losi brown or even AE green slime at times. I prefer the Losi brown. Hope this helps until MM or CG reply.
RBLove is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Corner Dots anyone? RCGaryK Electric On-Road 19 07-03-2006 11:12 PM
On the Corner RC-HPI R/C Photography 0 08-02-2005 10:53 PM
Snowbirds Around the Corner scarecrow Florida Racing 20 01-27-2005 10:43 AM
1/12th Corner GT Racer Singapore R/C Racers 26 03-04-2004 06:59 AM
Shumacher Corner in Aus jamesbaxter_81 Australian Racing 6 01-08-2004 02:36 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 06:48 PM.


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