R/C Tech Forums

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

Like Tree25Likes
Reply
 
Thread Tools Search this Thread
Old 10-12-2015, 07:58 PM   #8911
Tech Champion
 
hanulec's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2007
Location: @ the post office
Posts: 8,547
Trader Rating: 27 (100%+)
Default

Quote:
Originally Posted by voodoo View Post
can anyone guide me on which holes i should bolt up on the alum chassis brace in my EvoII to get optimum chassis flex without sacrificing overall chassis strength against collisions. i also have those Tamiya hollow bolts, are they helpful? thanks!

also, which promotes traction roll on a grippy track, a flexy or a stiff chassis?

which brace?
you'll find a stiff chassis best unless there is no grip.... and then, possibly removing the top deck is best.
__________________
FJ / ROAR #2-122945 / MaxRotation FPV Drone Racing / [email protected] Awesomatix USA / Wild Turbo Fan / Mon-Tech Racing / RocheRC USA / Side Piece /
LRP / John's BSR Tires / TeamEAM / TQ Wire / R1 / Team Scream / PCR / MIX
RacerLog wiki Awesomatix A700 / 2wd offroad 4 life
hanulec is offline   Reply With Quote
Old 10-14-2015, 04:27 PM   #8912
Tech Adept
 
Join Date: Sep 2002
Location: Davao
Posts: 214
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by hanulec View Post
which brace?
you'll find a stiff chassis best unless there is no grip.... and then, possibly removing the top deck is best.
yeah grip is hard to find in our local track unless prepped for a race. but i tried removing the top deck and i actually took 1st in a heat over our top drivers, and consistently placed in the top 3 (except for a couple of heats which were my fault). loving this car!
__________________
Awesomatix Sanwa Trinity Tamiya
voodoo is offline   Reply With Quote
Old 10-15-2015, 04:49 AM   #8913
Tech Elite
 
howardcano's Avatar
 
Join Date: Jan 2012
Location: Olathe, KS
Posts: 3,609
Trader Rating: 35 (100%+)
Default

John Doucakis wins in Greece!:

http://www.redrc.net/2015/10/john-do...nationals-rd3/
__________________
Howard Cano
When race results are re-calculated using the IOF (Index Of Fun), I always win.
1993 ROAR 1/8 Pan National Champion
howardcano is offline   Reply With Quote
Old 10-15-2015, 08:23 AM   #8914
Tech Adept
 
Join Date: Sep 2002
Location: Davao
Posts: 214
Trader Rating: 13 (100%+)
Default

So, does shorter upper camber/caster links promote traction roll or lessen it?
__________________
Awesomatix Sanwa Trinity Tamiya
voodoo is offline   Reply With Quote
Old 10-15-2015, 01:32 PM   #8915
Moderator
 
Clegg's Avatar
 
Join Date: Jan 2004
Location: Outside doing things in places... Denver, CO
Posts: 4,609
Trader Rating: 9 (100%+)
Default

So I've determined that trying to follow setups on an AX car is rather pointless given that few people have a car that are all the same parts as any of the setups. Seems most cars end up being A700Mutts. (example, I am running an aluminum chassis (1st gen CO1AL) on an A700L, but with some L2/Evo2 bits, and GD1s, in 17.5/13.5).

So... in trying to tune the car around feel/driving style, what are people using for general setup guidance? The old Xray tuning guide that breaks down each geometry adjustment? Or is there anything more current/applicable to the A700 out there? Trying to narrow down high impact adjustments around roll center and such in relation to "free up/stick the rear off power", "more mid corner steering or on power steering", etc...

And with the A700 there are SO many options to tweak change, its a bit daunting at times. Being that I've been out of the loop the last 7 months, looking at the A700 again to make changes leaves lots of "why the hell is that setup the way it is right now?" questions
__________________
Joe Kelly - JK720.net
5280 Raceway |5280raceway.com | 5280 Raceway Facebook
Clegg is offline   Reply With Quote
Old 10-15-2015, 02:17 PM   #8916
Tech Regular
 
WesRaven's Avatar
 
Join Date: Feb 2015
Location: Ventura, CA
Posts: 429
Default

Quote:
Originally Posted by voodoo View Post
So, does shorter upper camber/caster links promote traction roll or lessen it?
I would say shorter links will promote traction roll (to a certain point) because you will continue to gain camber as the car rolls into the turn.

Quote:
Originally Posted by Clegg View Post
So I've determined that trying to follow setups on an AX car is rather pointless given that few people have a car that are all the same parts as any of the setups.... ...Being that I've been out of the loop the last 7 months, looking at the A700 again to make changes leaves lots of "why the hell is that setup the way it is right now?" questions
I have come to the same conclusion after trying many different setups from other people; I find them to rarely work, or even be remotely drivable sometimes. When you're starting out brand new, you have little else choice, but after getting used to your own car, driving style, and common track choices, you need to start trusting your own setups and nearly ignore what works for others. I've definitely learned a lot from trying other setups, but what I commonly run and find works for me is different from most others I see that do well.

Anyway, all of that being said, here is the only general setup starting point I've found that works for me on medium-high grip asphalt: Standard springs with the dampening and spring rate set to a 3.0 mm gap front and back. 1.2 mm sway bar up front, 1.0 in the back. If I want more steering and not having any rear traction issues, I will go with a 3.6-4.0 mm gap on the spring rate up front to soften it (but leave the dampening at 3.0).

I've played with many combinations of parts, tires, dampers, chassis (alloy and carbon), upper decks (with and without), flex, bodies, and modifications between my Evo 1 and 2... This is the general starting point I use for all of them and I find it works pretty well to get me in the ball park. It also gives me a baseline so I can tell what other changes are really doing.

Curious what other's use as their go-to "I have no idea what to expect" initial setups.
__________________
Wes Raven - ActivRC.com
Ventura Roadrunners - RoadrunnersRC.com
WesRaven is offline   Reply With Quote
Old 10-15-2015, 02:59 PM   #8917
Tech Regular
 
Schwarta's Avatar
 
Join Date: Jun 2014
Location: Brisbane
Posts: 431
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by WesRaven View Post
Curious what other's use as their go-to "I have no idea what to expect" initial setups.
I've used the setup you posted a while ago as a good starting point.

Wes, I noticed in the a800 thread that you said you prefer the carbon chassis, do you use the chassis brace (am33-5 or other) with the carbon chassis?

I know with the alloy chassis, if you don't use the brace, you must use the top deck, is it the same with the carbon chassis?
Schwarta is offline   Reply With Quote
Old 10-15-2015, 04:03 PM   #8918
Tech Regular
 
WesRaven's Avatar
 
Join Date: Feb 2015
Location: Ventura, CA
Posts: 429
Default

Quote:
Originally Posted by Schwarta View Post
Wes, I noticed in the a800 thread that you said you prefer the carbon chassis, do you use the chassis brace (am33-5 or other) with the carbon chassis?
Yes, I am using the AM33-5 with the C01L2-H chassis and no top deck. I typically run on a bumpy asphalt track and like to have lot of flex, so the AM33 only has two screws in the center with set screws at the ends to keep it straight on the chassis. For what it's worth, I'm also running the Josh Cyrul shortened AT32 rod mod.

Regarding the top deck; I tend to run without it because while I do gain mid-corner steering, I find I give up too much rear-end traction. I personally haven't found a problem gaining mid-corner steering without having to run the top-deck, and feel they lock up the rear flex points too much for my taste.


Edit:
Quote:
Originally Posted by Schwarta View Post
I know with the alloy chassis, if you don't use the brace, you must use the top deck, is it the same with the carbon chassis?
I've actually run a carbon Raceberry chassis on my Evo 1 without a chassis brace or top deck, but still had the full AT32 rod to keep the chassis from bowing. It is the easiest car to drive I've ever wheeled, but it can't be pushed as hard as other setups. I actually keep this extra car around for the days that I can't dial my main car for the life of me. I even switched to it in the middle of the recent Nats because I dialed my Evo 2 out to oblivion on the Tamiya track. Sometimes consistency can beat a car that is theoretically faster. My Evo 2 (running the alloy chassis at the time) was capable of putting down faster lap times, but my overall times were better with the Evo 1. Me being crazy nervous at my first Nats event didn't help either
__________________
Wes Raven - ActivRC.com
Ventura Roadrunners - RoadrunnersRC.com

Last edited by WesRaven; 10-15-2015 at 04:18 PM.
WesRaven is offline   Reply With Quote
Old 10-15-2015, 04:26 PM   #8919
Tech Regular
 
WesRaven's Avatar
 
Join Date: Feb 2015
Location: Ventura, CA
Posts: 429
Default

Quote:
Originally Posted by howardcano View Post
Thanks for posting this Howard. Big congrats to John and Awesomatix! Nice to see a mod win

__________________
Wes Raven - ActivRC.com
Ventura Roadrunners - RoadrunnersRC.com
WesRaven is offline   Reply With Quote
Old 10-16-2015, 01:21 AM   #8920
Tech Addict
 
Join Date: Sep 2006
Posts: 743
Default

Quote:
Originally Posted by WesRaven View Post
Thanks for posting this Howard. Big congrats to John and Awesomatix! Nice to see a mod win

You can find the video of these A-mains and more pictures in the report here:

https://www.facebook.com/awesomatixRC
Oleg Babich is offline   Reply With Quote
Old 10-16-2015, 02:39 PM   #8921
Tech Initiate
 
Join Date: May 2010
Posts: 23
Default

Could someone please explain the effects of using am26. Also I've notice that am06s is now standard on the evo 2, what effect does this have on handling?
Thanks
danielc3009 is offline   Reply With Quote
Old 10-16-2015, 03:39 PM   #8922
Tech Champion
 
hanulec's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2007
Location: @ the post office
Posts: 8,547
Trader Rating: 27 (100%+)
Default

Quote:
Originally Posted by danielc3009 View Post
Could someone please explain the effects of using am26. Also I've notice that am06s is now standard on the evo 2, what effect does this have on handling?
Thanks
http://racerlog.com/wiki/Awesomatix_...ter_Adjustment

fyi - am26 haven't proven to be extremely popular.
__________________
FJ / ROAR #2-122945 / MaxRotation FPV Drone Racing / [email protected] Awesomatix USA / Wild Turbo Fan / Mon-Tech Racing / RocheRC USA / Side Piece /
LRP / John's BSR Tires / TeamEAM / TQ Wire / R1 / Team Scream / PCR / MIX
RacerLog wiki Awesomatix A700 / 2wd offroad 4 life
hanulec is offline   Reply With Quote
Old 10-17-2015, 03:35 PM   #8923
Tech Regular
 
Schwarta's Avatar
 
Join Date: Jun 2014
Location: Brisbane
Posts: 431
Trader Rating: 3 (100%+)
Default

Do the gears wear much? I seem to getting a bit of a "chirp" on take off and was just wondering if it may be wear on my gears. I am using some Teflon dry lube on the gears.

I thought they looked ok at last check. And the car seems to be quiet (ish) when running.
Schwarta is offline   Reply With Quote
Old 10-17-2015, 03:52 PM   #8924
Tech Adept
 
Join Date: Sep 2002
Location: Davao
Posts: 214
Trader Rating: 13 (100%+)
Default

That happend to me once, it was the spur gear.
__________________
Awesomatix Sanwa Trinity Tamiya
voodoo is offline   Reply With Quote
Old 10-17-2015, 06:13 PM   #8925
Tech Apprentice
 
Join Date: Sep 2014
Posts: 85
Default

ooo. That looks hawt.
theoutbackdream is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bendigo..Vic.. On Road Car Club VoneSkip Australian Racing 17219 09-26-2017 10:31 AM
T.O.P. Racing "Photon" 1/10 EP Touring Car keithander Electric On-Road 9064 06-14-2017 01:46 PM
Topeka Onroad Racing Aaron P Kansas/Missouri Racing 10913 01-18-2017 07:05 AM
Touring Car Custom Cut Urethane Chassis Protectors!! Rommel Electric On-Road 220 07-07-2013 10:23 PM
The prototype car is on the winning pace number_one Electric On-Road 163 01-12-2009 11:52 AM


Tags
yokomo


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 08:52 AM.


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