R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Oval, Larger Scales and More

Reply
 
Thread Tools Search this Thread
Old 06-29-2009, 10:16 AM   #361
Tech Master
 
Join Date: Aug 2004
Location: Sunnyvale, Ca
Posts: 1,254
Default

Quote:
Originally Posted by John St.Amant View Post
I like your set up ! It looks like you've done a lot of work there.
But if I'm correct, that is not a roar approved pack. Or is it?
That's okay, it's not a ROAR class either
Rich Browne is offline   Reply With Quote
Old 06-29-2009, 10:21 AM   #362
Tech Master
 
Join Date: Jul 2004
Location: MI
Posts: 1,544
Trader Rating: 1 (100%+)
Send a message via AIM to John St.Amant Send a message via MSN to John St.Amant Send a message via Yahoo to John St.Amant
Default

Quote:
Originally Posted by Rich Browne View Post
That's okay, it's not a ROAR class either
It will be....
__________________
Pro-Line Racing , Boca Bearings , Competition Heat.
Team Durango DEX210, DEX410V3, DESC410R, DNX408
Futaba FAAST 2.4 4PkS, LRP, Tekin, Xcellorin
John St.Amant is offline   Reply With Quote
Old 06-29-2009, 10:22 AM   #363
Tech Master
 
Join Date: Aug 2004
Location: Sunnyvale, Ca
Posts: 1,254
Default

Quote:
Originally Posted by John St.Amant View Post
It will be....
With any luck - few details need to be addressed in the meantime
Rich Browne is offline   Reply With Quote
Old 06-29-2009, 11:23 AM   #364
Tech Master
 
YoDog's Avatar
 
Join Date: Aug 2006
Location: Lompoc, Ca.
Posts: 1,638
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by John St.Amant View Post
I like your set up ! It looks like you've done a lot of work there.
But if I'm correct, that is not a roar approved pack. Or is it?

True but the cells are used in ROAR approved packs.
It's the size I wanted to point out since they want the cell size to maintain the predominant 6 sub "c" pack dimensions. Of course a hard shell pack would be more likely to be approved and will fit within my design.
It's the footprint that matters most, height is just a matter of application.
YoDog is offline   Reply With Quote
Old 06-29-2009, 11:34 AM   #365
Tech Master
 
Join Date: Jul 2004
Location: MI
Posts: 1,544
Trader Rating: 1 (100%+)
Send a message via AIM to John St.Amant Send a message via MSN to John St.Amant Send a message via Yahoo to John St.Amant
Default

Quote:
Originally Posted by YoDog View Post
True but the cells are used in ROAR approved packs.
It's the size I wanted to point out since they want the cell size to maintain the predominant 6 sub "c" pack dimensions. Of course a hard shell pack would be more likely to be approved and will fit within my design.
It's the footprint that matters most, height is just a matter of application.
Some people haven't seen the light of regulating the pack size for us.
If there was a "Standard" with which we could count on as being fixed in dimensions rather than just capacity..... oh well there I go again. Let alone connectivity.
__________________
Pro-Line Racing , Boca Bearings , Competition Heat.
Team Durango DEX210, DEX410V3, DESC410R, DNX408
Futaba FAAST 2.4 4PkS, LRP, Tekin, Xcellorin
John St.Amant is offline   Reply With Quote
Old 06-29-2009, 11:39 AM   #366
Tech Master
 
Join Date: Aug 2004
Location: Sunnyvale, Ca
Posts: 1,254
Default

Quote:
Originally Posted by John St.Amant View Post
Some people haven't seen the light of regulating the pack size for us.
If there was a "Standard" with which we could count on as being fixed in dimensions rather than just capacity..... oh well there I go again. Let alone connectivity.
ROAR LiPO Physical Specs:

"8.3.2.2.1 Hard Case & Dimensions
A factory encased hard shell pack is mandated for race durability reasons that stem from the
vulnerability of Lipo cells to physical damage. Any physical distortion, denting or puncture to
the cells will cause either an immediate or long term safety risk. A hard cased pack reduces
this risk significantly by protecting the cells from crash damage, battery ejection, and general
wear and tear at the track.

The maximum dimensions are:
Length: 139mm +0mm/-3mm
Width: 47mm +0mm/-2mm
Height: 25.1mm +0mm/-3.0mm

These are in place to standardize pack dimensions in order for chassis manufacturers to now
be able to design around a consistent set of fixed dimensions."

(I agree on the balance tap, that needs to be standardized - connection plugs, not as much)
Rich Browne is offline   Reply With Quote
Old 06-29-2009, 11:46 AM   #367
Tech Master
 
YoDog's Avatar
 
Join Date: Aug 2006
Location: Lompoc, Ca.
Posts: 1,638
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by John St.Amant View Post
Some people haven't seen the light of regulating the pack size for us.
If there was a "Standard" with which we could count on as being fixed in dimensions rather than just capacity..... oh well there I go again. Let alone connectivity.
So true...

The battery manufacturer don't have a crystal ball and sure don't want to invest in tooling for a cell that won't be used by many customers.
You may have noticed that since ROAR set the Width and length maximum requirements, every body's making lipos now! They just want to know where the big market is. Now with competition, the cells are getting better and better and the prices are coming down. I just felt it was important to take advantage of that.

Thanks for looking that up Rich!
The height is mainly the effect of having more cells (beyond 2) and maybe they will regulate that as well.
YoDog is offline   Reply With Quote
Old 06-29-2009, 11:53 AM   #368
Tech Master
 
Join Date: Jul 2004
Location: MI
Posts: 1,544
Trader Rating: 1 (100%+)
Send a message via AIM to John St.Amant Send a message via MSN to John St.Amant Send a message via Yahoo to John St.Amant
Default

So.... my 5000 35c Reedy is illegal at 25.4mm
I had to finagle that battery in my TM car and still had to shim the car up.
Just so I could have barrel connectors. WONDERFUL!
__________________
Pro-Line Racing , Boca Bearings , Competition Heat.
Team Durango DEX210, DEX410V3, DESC410R, DNX408
Futaba FAAST 2.4 4PkS, LRP, Tekin, Xcellorin
John St.Amant is offline   Reply With Quote
Old 06-29-2009, 12:11 PM   #369
Tech Master
 
Join Date: Aug 2004
Location: Sunnyvale, Ca
Posts: 1,254
Default

Quote:
Originally Posted by YoDog View Post
So true...

The battery manufacturer don't have a crystal ball and sure don't want to invest in tooling for a cell that won't be used by many customers.
You may have noticed that since ROAR set the Width and length maximum requirements, every body's making lipos now! They just want to know where the big market is. Now with competition, the cells are getting better and better and the prices are coming down. I just felt it was important to take advantage of that.

Thanks for looking that up Rich!
The height is mainly the effect of having more cells (beyond 2) and maybe they will regulate that as well.
Rick Y - ROAR is watching quick moving technologies - LiPo's and brushless has really sparked interest in racing.

John S - Go to the ROAR site and look at the battery approvals site:

http://www.roarracing.com/approvals/lipobattery.php
Rich Browne is offline   Reply With Quote
Old 06-29-2009, 01:26 PM   #370
Tech Master
 
Join Date: Jul 2004
Location: MI
Posts: 1,544
Trader Rating: 1 (100%+)
Send a message via AIM to John St.Amant Send a message via MSN to John St.Amant Send a message via Yahoo to John St.Amant
Default

Quote:
Originally Posted by Rich Browne View Post
Rick Y - ROAR is watching quick moving technologies - LiPo's and brushless has really sparked interest in racing.

John S - Go to the ROAR site and look at the battery approvals site:

http://www.roarracing.com/approvals/lipobattery.php
I follow you there Rich but umm...
The description in dimensions do not jive with what my Reedy pack is in height.
That measure o.3mm taller than the maximum allowed.
__________________
Pro-Line Racing , Boca Bearings , Competition Heat.
Team Durango DEX210, DEX410V3, DESC410R, DNX408
Futaba FAAST 2.4 4PkS, LRP, Tekin, Xcellorin
John St.Amant is offline   Reply With Quote
Old 06-29-2009, 01:30 PM   #371
Tech Master
 
Join Date: Aug 2004
Location: Sunnyvale, Ca
Posts: 1,254
Default

Quote:
Originally Posted by John St.Amant View Post
I follow you there Rich but umm...
The description in dimensions do not jive with what my Reedy pack is in height.
That measure o.3mm taller than the maximum allowed.
Can't explain it John....
Rich Browne is offline   Reply With Quote
Old 06-29-2009, 02:32 PM   #372
Tech Addict
 
jt415gz's Avatar
 
Join Date: Mar 2008
Location: The Bay
Posts: 656
Trader Rating: 29 (100%+)
Default

Quote:
Originally Posted by YoDog View Post
I thought That I'd clarify a couple of things that Rich has mentioned about my design.
The battery pack... I've designed the battery tray to accomodate the ROAR standard 45mm X 138mm lipo footprint which all of the lipo manufactures have focused most of their development.The user can then have a wide choice of battery manufactures and reap the benefit of future battery development without changing the car.
The car has 46mm of vertical clearance that can be adjusted through spacers.

Rich calls my design the E'Yoder based on my last name but I like to call it the E'volva since the car is based on the 2005/2007 Kyosho Evolva.
Perhaps the community would like to put it to a vote?

The car is coming along and we really appreciate all of the great feedback.
I'd also like to get some feedback on which base model many of you believe would yield the most conversions, The older 03-07 Evolva or the new M3 Evolva.
I say M3
__________________
Thanks,
-jT =]
jt415gz is offline   Reply With Quote
Old 06-29-2009, 02:36 PM   #373
Tech Addict
 
jt415gz's Avatar
 
Join Date: Mar 2008
Location: The Bay
Posts: 656
Trader Rating: 29 (100%+)
Default

Quote:
Originally Posted by Rich Browne View Post
John, these are purpose built 1/8th scale on-road cars (Kyosho Evolva's both 07 and M3 configuration) - not off road variants - please look at the photos. One of the cars we have tested does 90 mph. We are settling on 60 mph which is reasonable.
aw damn when did the ice blue rear anti-roll bar bracket release? I purchased the stealth black set recently and i like the ice blue more!
__________________
Thanks,
-jT =]
jt415gz is offline   Reply With Quote
Old 06-29-2009, 02:39 PM   #374
Tech Master
 
Join Date: Aug 2004
Location: Sunnyvale, Ca
Posts: 1,254
Default

Quote:
Originally Posted by jt415gz View Post
aw damn when did the ice blue rear anti-roll bar bracket release? I purchased the stealth black set recently and i like the ice blue more!
It's one o those damn design types on staff - they just keep fiddling with the product colors. Oh, man... I wish they would just leave it alone....
Rich Browne is offline   Reply With Quote
Old 06-29-2009, 04:36 PM   #375
Tech Master
 
Join Date: Jul 2004
Location: MI
Posts: 1,544
Trader Rating: 1 (100%+)
Send a message via AIM to John St.Amant Send a message via MSN to John St.Amant Send a message via Yahoo to John St.Amant
Default

Quote:
Originally Posted by jt415gz View Post
I say M3
eM3
__________________
Pro-Line Racing , Boca Bearings , Competition Heat.
Team Durango DEX210, DEX410V3, DESC410R, DNX408
Futaba FAAST 2.4 4PkS, LRP, Tekin, Xcellorin
John St.Amant is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
WTT Nitro onroad 4 electric onroad rswartz R/C Items: Wanted to Buy 0 02-16-2008 05:22 AM
WTT: 1/10th scale electric offroad for onroad... M2_Driver R/C Items: For Sale/Trade 7 10-22-2007 06:48 AM
Electric heli and 1/5 scale onroad F/S... Nitrobuzzard R/C Items: For Sale/Trade 3 08-18-2007 07:41 PM
1/8 electric onroad?? Saber186 Electric On-Road 2 04-22-2006 10:25 AM
I need electric Onroad xxxssportracer R/C Items: Wanted to Buy 5 05-20-2003 04:00 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 06:37 PM.


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