R/C Tech Forums

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

    Hide Wikipost
Old 03-09-2017, 12:23 AM   -   Wikipost
R/C Tech Forums Thread Wiki: Team Associated RC10 B5m Mid-Motor Thread
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
Last edit by: RCBuddha
Quick link to the front page

First Page

Print Wikipost

Like Tree9Likes
Reply
 
Thread Tools Search this Thread
Old 01-28-2014, 12:36 PM   #721
Tech Prophet
 
Wildcat1971's Avatar
 
Join Date: Apr 2012
Location: Arizona
Posts: 16,945
Trader Rating: 81 (100%+)
Default

the 4wd tires are wider. width might be an issue for roar with he tires on the car
__________________
Support: Team Associated | Reedy Motors & ESC's | Sanwa Radios | Avid | Proline Tires
Wildcat1971 is offline   Reply With Quote
Old 01-28-2014, 12:58 PM   #722
Tech Elite
 
Mason's Avatar
 
Join Date: Oct 2004
Location: Ocala, Florida
Posts: 4,870
Default

That's because those rules changed some time back. There are some minimum measurements for some items (but not wheel/tire widths) and obviously all dimensions have a maximum. Thereby if it fits the rules you can run it. There is no rule regarding 4wd fronts on 2wd or heck, rears on fronts, anymore. (if your local track or event makes a stipulation then so be it as they are free to do so!)

Fronts have been narrower for a few reasons. One being drawn from the real buggies when originally copied. The wedging caused by the amounts of caster we run is also less than a wide wheel. Also if you have driven something with fronts nearly as wide as rears, the steering seems like a detriment as the backend is chasing the front or the car is screwing itself into the ground.

With the static weight moving forward i'm sure there will be some developments with the front wheels.
__________________
Mason McCombs
NewRed Hobbies & Indoor Facility
Off-Road, Dirt Oval, Crawlers & Pullers
Mason is offline   Reply With Quote
Old 01-28-2014, 01:57 PM   #723
Tech Addict
 
bilster44's Avatar
 
Join Date: Mar 2006
Location: Sactown, Ca
Posts: 666
Trader Rating: 1 (100%+)
Default

A two wheel buggy with four wheel front tires on it probably will not fit the width of the tech box at a Roar/Ifmar race, that everyone must use when going through tech inspection. Their just too wide.
__________________
"Let Your Racing Speak"
bilster44 is offline   Reply With Quote
Old 01-28-2014, 02:08 PM   #724
Tech Regular
 
Join Date: Feb 2010
Location: Morrisville, NC
Posts: 471
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by bilster44 View Post
A two wheel buggy with four wheel front tires on it probably will not fit the width of the tech box at a Roar/Ifmar race, that everyone must use when going through tech inspection. Their just too wide.
Wouldn't the width stay the same if you are using 0 offset wheels? The end of the axle would still be the widest part of the front end.
__________________
I'm not an expert, just a truggy enthusiast
kawi650 is offline   Reply With Quote
Old 01-28-2014, 02:11 PM   #725
Tech Champion
 
Davidka's Avatar
 
Join Date: Oct 2004
Posts: 9,861
Trader Rating: 75 (100%+)
Default

The sidewall could overhang more on a narrower rim than the 4wd tires were designed for . The 22 rims are pretty wide, more so than the AE's and Losi's previous types.
__________________
"I have no idea what you're talking about, so here's a bunny with a pancake on it's head."

In mind and body, we're all heading towards old age. It is slower to go by bike.
Davidka is offline   Reply With Quote
Old 01-28-2014, 02:20 PM   #726
Tech Regular
 
Join Date: Feb 2010
Location: Morrisville, NC
Posts: 471
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by Davidka View Post
The sidewall could overhang more on a narrower rim than the 4wd tires were designed for . The 22 rims are pretty wide, more so than the AE's and Losi's previous types.
I was thinking if the tires were on appropriate sized rims, not the narrower 2wd front rims. I could see the sidewall overhang being a problem.

Didn't Proline make wide front 2wd tires and wheels that were nearly the size of 4wd fronts in the late-90s? Anyone remember those?
__________________
I'm not an expert, just a truggy enthusiast
kawi650 is offline   Reply With Quote
Old 01-28-2014, 02:24 PM   #727
Tech Champion
 
Davidka's Avatar
 
Join Date: Oct 2004
Posts: 9,861
Trader Rating: 75 (100%+)
Default

Quote:
Originally Posted by kawi650 View Post
I was thinking if the tires were on appropriate sized rims, not the narrower 2wd front rims. I could see the sidewall overhang being a problem.

Didn't Proline make wide front 2wd tires and wheels that were nearly the size of 4wd fronts in the late-90s? Anyone remember those?
I remember those, Losi did the same. They were really closer to the 2wd fronts we run now. Front tires were typically MUCH narrower in the early 90's.
__________________
"I have no idea what you're talking about, so here's a bunny with a pancake on it's head."

In mind and body, we're all heading towards old age. It is slower to go by bike.
Davidka is offline   Reply With Quote
Old 01-28-2014, 03:59 PM   #728
Tech Prophet
 
Wildcat1971's Avatar
 
Join Date: Apr 2012
Location: Arizona
Posts: 16,945
Trader Rating: 81 (100%+)
Default

I am really hoping that the AE MM car does not require the amount of weight added to it that others do. Its kinda lame to buy a kit and then stick $100 into brass to make the car not suck. Plus it sucks to have all of that weight in 17.5. Also, drivers like spencer rivken ran rm for 17.5 on the same track he ran mm for mod recently at a larger race. Since he has both cars and is sponsored, he could run mm in both, but didnt. Maybe because the centro is kinda heavy for 17.5?
__________________
Support: Team Associated | Reedy Motors & ESC's | Sanwa Radios | Avid | Proline Tires
Wildcat1971 is offline   Reply With Quote
Old 01-28-2014, 04:10 PM   #729
Tech Elite
 
Join Date: Mar 2011
Location: Houston
Posts: 2,544
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Wildcat1971 View Post
I am really hoping that the AE MM car does not require the amount of weight added to it that others do. Its kinda lame to buy a kit and then stick $100 into brass to make the car not suck. Plus it sucks to have all of that weight in 17.5. Also, drivers like spencer rivken ran rm for 17.5 on the same track he ran mm for mod recently at a larger race. Since he has both cars and is sponsored, he could run mm in both, but didnt. Maybe because the centro is kinda heavy for 17.5?
I think the saddle pack will take care of that. A shorty will almost certainly require more weight if it's on anything but high grip.
__________________
Follow my rc products on Facebook at Raborn Racing Originals and the line of 3D printed parts at
http://www.shapeways.com/shops/rebellionrc
fredswain is offline   Reply With Quote
Old 01-28-2014, 05:16 PM   #730
Tech Prophet
 
Wildcat1971's Avatar
 
Join Date: Apr 2012
Location: Arizona
Posts: 16,945
Trader Rating: 81 (100%+)
Default

That is what I am hoping for. If the saddles are all I need for outdoor racing.
__________________
Support: Team Associated | Reedy Motors & ESC's | Sanwa Radios | Avid | Proline Tires
Wildcat1971 is offline   Reply With Quote
Old 01-28-2014, 05:39 PM   #731
Tech Champion
 
Davidka's Avatar
 
Join Date: Oct 2004
Posts: 9,861
Trader Rating: 75 (100%+)
Default

Weight is a band-aid for setup. Remember when guys would put 6oz under their lipo batteries? Dakotah Phend just posted that he only runs 7gm in his 22 MM, a car with a reputation for needing a lot of weight.

If lots of weight must be added then either the setup hasn't been worked out (which can understandably take a while) or the car has adjustment limitations (Link locations, available spring rates, etc) to reach the right setup.
__________________
"I have no idea what you're talking about, so here's a bunny with a pancake on it's head."

In mind and body, we're all heading towards old age. It is slower to go by bike.
Davidka is offline   Reply With Quote
Old 01-28-2014, 07:45 PM   #732
Tech Addict
 
BillPear's Avatar
 
Join Date: Jan 2012
Location: The O.C. 92646
Posts: 748
Trader Rating: 3 (100%+)
Send a message via Yahoo to BillPear
Default

Quote:
Originally Posted by CaseyD View Post
Is it legal to run 4wd wheels on a 2wd buggy? How would that work at a race like the Reedy? Mix your barcodes with the ions?
The Reedy Race as do all major events require control tires. For the Reedy they were gold Barcodes front and Silver rear for 2wd, and Ions all around for 4wd.

If you feel like you need to run 4wd fronts on you 2wd buggy just run stadium truck and get out of my way
BillPear is offline   Reply With Quote
Old 01-28-2014, 07:59 PM   #733
Tech Master
 
Cridd's Avatar
 
Join Date: Dec 2012
Location: Visalia, CA
Posts: 1,944
Trader Rating: 16 (100%+)
Default

I think shorty in 17.5 is better than saddles. With engine being tame and not not pushing the cars limits gives it time to settle. With mod motor, feels like you would need weight to have it settle quickly and push harder, brake, etc. but 17. a shorty feels best in MM to me. Our club only races 17.5 and 13.5 so no big motors.
__________________
Chris
B6D / T5M / SC5M
Cridd is offline   Reply With Quote
Old 01-29-2014, 08:23 AM   #734
Tech Regular
 
Bcholka's Avatar
 
Join Date: Mar 2012
Location: Milwaukee
Posts: 476
Default

Quote:
Originally Posted by Cridd View Post
I think shorty in 17.5 is better than saddles. With engine being tame and not not pushing the cars limits gives it time to settle. With mod motor, feels like you would need weight to have it settle quickly and push harder, brake, etc. but 17. a shorty feels best in MM to me. Our club only races 17.5 and 13.5 so no big motors.
+1
And this has been beaten to death on many a thread--but I think the majority of experienced stock buggy drivers will recommend running shorty packs. I've experimented lots with both and I keep ending up with running shorty's.
Also-I agree that having to add any substantial amount of weight is definitely a bandaid for improper setup, wrong tires, etc.
__________________
2-Tekno EB48.2's, 1-Tekno ET48, 1-Tekno NB48, 1-Tekno NT48, 1-Tekno SCT-410, 1-AE B5, 1-AE B5M, 1-Kyosho RT6, 1-Kyosho MP9e TKi, 1-TLR Losi Mini 8ight
Our Awesome Sponsors: Tekno RC, AKA Tires, Dialed Designs Airbrushing
Special Thanks to: Trackside Raceway, Clark R/C Park & RC Scoring Pro
Bcholka is offline   Reply With Quote
Old 01-29-2014, 08:28 AM   #735
Tech Champion
 
Davidka's Avatar
 
Join Date: Oct 2004
Posts: 9,861
Trader Rating: 75 (100%+)
Default

Quote:
Originally Posted by Bcholka View Post
+1

Also-I agree that having to add any substantial amount of weight is definitely a bandaid for improper setup, wrong tires, etc.
Another component to this is adjusting the motor. If a car drops a significant amount of weight due to lipo from NiMh or the change to short packs then the ideal amount of power changes with it. I used to run as much as a 6.5 in 2wd before lipo came in, then 7.5, 8.5, now I run a 10.5 and I can't really use any more power then that effectively.
__________________
"I have no idea what you're talking about, so here's a bunny with a pancake on it's head."

In mind and body, we're all heading towards old age. It is slower to go by bike.
Davidka is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 4 (0 members and 4 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 08:18 PM.


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