R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 01-09-2007, 08:53 AM   #16996
Tech Addict
 
Join Date: Dec 2004
Posts: 517
Default

KilRuf and TryHard: Thanks for your help.

I think i will try the less rear drop first. On the front spring, isn't it transfer more weight to front when use stiffer front spring? Using stiffer front spring should more the car has faster reaction which means my car will break lose more easily when entering into corner. Please correct if my theory is wrong.
Ed, for the sweeper situation, you got the picture. I think the car is rolling too much too. When the car is rolling too much how come you suggest try to use softer sway bar? Isn't it has only one way to go which is use stiffer rear spring to hard sway bar? Thank you.
ioxqq is offline   Reply With Quote
Old 01-09-2007, 09:40 AM   #16997
Tech Champion
 
TryHard's Avatar
 
Join Date: Jun 2004
Location: Sydney, NSW
Posts: 5,284
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by ioxqq
KilRuf and TryHard: Thanks for your help.

I think i will try the less rear drop first. On the front spring, isn't it transfer more weight to front when use stiffer front spring? Using stiffer front spring should more the car has faster reaction which means my car will break lose more easily when entering into corner. Please correct if my theory is wrong.
Ed, for the sweeper situation, you got the picture. I think the car is rolling too much too. When the car is rolling too much how come you suggest try to use softer sway bar? Isn't it has only one way to go which is use stiffer rear spring to hard sway bar? Thank you.
A stiffer spring (high poundage) will resist the weight transfer to the front more. Think of it this way. Imagine a spring on the ground, and you jump on it, it will squash downwards due to your weight.
Now if you use a stiffer spring and jump on it, it won't squash as much, because it resists your weight more.
Effectively, this is what is happening with the weight transfer, when you let off the power into a turn, your cars weight moves forwards, which the springs attempt to resist. How stiff the springs are control how much weight is transfered.

Obviously this isn't the only function of a spring (bump and roll control being other vital aspects), but it works in a simplifed form.

Controlling how weight is transfered around the car is the key to getting good handling, more so on cars dominated by mechanical grip, (such as our RC cars), rather than aerodynamic (a full scale F1 car for example).

Yes the stiffer spring will sharpen up your initial turn-in, but after that it will reduce the amount of steering you get, as the weight can't be transfered to the front.

Droop works in effectively the same way, by limiting the down travel of the arms (and effectively how much the car squats or dives), you can limit the transfer of weight to the opposite end (i.e Front droop affects the rear of the car, rear droop the front).

One thing to be aware of with droop though, which a lot of people forget, is that it does affect your roll control. I remember a situation earlier this year, where I had big trouble with oversteer into a chicane after a long sweeper. What was happening was the car was effectively resting on the droop stop through the corner... and as soon as i asked the car to turn more, the rear end broke away. Running less droop solved this problem, despite it seeming to be the wrong thing to do (basically adding weight transfer to the front... the opposite of what was required for a car oversteering on turn-in). This is one reason why I rarely change the droop settings on the car.

Also, if you re-read my post, I did actually suggest using a stiffer rear bar

Hopefully that makes sense.

Ed
__________________
| THard.co.uk | Xray | MuchMore |
TryHard is offline   Reply With Quote
Old 01-09-2007, 11:27 AM   #16998
Tech Addict
 
Join Date: Jan 2007
Posts: 617
Trader Rating: 35 (100%+)
Default 415 vs rdx

can someone give me a run down or comparison of the 2 cars are they pretyy much equal? and as far as set up, if i buy a refine 2 kit, what else does it need to be as good as it can be on indoor carpet? i know with the rdx i need low roll centers and some other stuff.
nazman01 is offline   Reply With Quote
Old 01-09-2007, 11:55 AM   #16999
Tech Regular
 
Join Date: Jul 2006
Location: Surrey British Columbia Canada
Posts: 304
Default

since when was mre discontinued?

http://www.tamiyausa.com/product/ite...oduct-id=49394
C_Suzuki is offline   Reply With Quote
Old 01-09-2007, 12:29 PM   #17000
Tech Addict
 
Stein Tumert's Avatar
 
Join Date: Feb 2006
Location: Norway (Oslo) / Germany (Hamburg)
Posts: 556
Default

Quote:
Originally Posted by nazman01
can someone give me a run down or comparison of the 2 cars are they pretyy much equal? and as far as set up, if i buy a refine 2 kit, what else does it need to be as good as it can be on indoor carpet? i know with the rdx i need low roll centers and some other stuff.

For the refine 2 (415 MSX MRE) I recommend to get the shorter suspension arms from the EVO5 if you plan to race on carpet...
__________________
Stein Tumert
Tamiya TRF, Sanwa M12, SpeedPassion, Much More, LRP
Stein Tumert is offline   Reply With Quote
Old 01-09-2007, 12:30 PM   #17001
Tech Addict
 
Stein Tumert's Avatar
 
Join Date: Feb 2006
Location: Norway (Oslo) / Germany (Hamburg)
Posts: 556
Default

Quote:
Originally Posted by C_Suzuki

It was annouced from day one as a limited edition kit...
__________________
Stein Tumert
Tamiya TRF, Sanwa M12, SpeedPassion, Much More, LRP
Stein Tumert is offline   Reply With Quote
Old 01-09-2007, 02:29 PM   #17002
Tech Elite
 
DENNIS STORTI's Avatar
 
Join Date: Apr 2002
Location: Horsham
Posts: 2,400
Trader Rating: 42 (94%+)
Send a message via AIM to DENNIS STORTI
Default

Quote:
Originally Posted by TRF415boy
No only the rear one fits, the front of the 415 is way too short.
thanks trf415 boy so the rear will fit do u know if the bomber one for the yok belt car is bigger than the trf
DENNIS STORTI is offline   Reply With Quote
Old 01-09-2007, 04:01 PM   #17003
Tech Regular
 
LBSR415's Avatar
 
Join Date: Jun 2006
Location: RAZOR GRAPHIX
Posts: 480
Default

Ok guys, burning question,,,I'm going to the snowbirds nats,,,,,I signed up for stock rubber tire on carpet,,,,never done this,,,what body style would you recommend? carpet like DNA or Alpha or my usual asphalt Mazda speed 6?
__________________
Team OHP
Razor Graphix
East Coast R/C
Pantheon Motorsports

These fish,,,are frozen.
LBSR415 is offline   Reply With Quote
Old 01-09-2007, 04:17 PM   #17004
Tech Champion
 
TryHard's Avatar
 
Join Date: Jun 2004
Location: Sydney, NSW
Posts: 5,284
Trader Rating: 4 (100%+)
Default

I would say, either Mazda speed6 (seems a lot of people are liking it on the rug, not tried one myself yet, will do by the end of the weekend), or the DNA2 due to be released very soon...
Otherwise the old faithful Mazda6 is always a good bet.

Ed
__________________
| THard.co.uk | Xray | MuchMore |
TryHard is offline   Reply With Quote
Old 01-09-2007, 04:32 PM   #17005
Tech Master
 
TRF415boy's Avatar
 
Join Date: Dec 2004
Posts: 1,857
Default

Quote:
Originally Posted by LBSR415
Ok guys, burning question,,,I'm going to the snowbirds nats,,,,,I signed up for stock rubber tire on carpet,,,,never done this,,,what body style would you recommend? carpet like DNA or Alpha or my usual asphalt Mazda speed 6?
I tried a few shells during the year and always came back to the good "old" Mazda 6. It may not have FELT the best, but track times proved it to BE, every time. If I were you I'd make sure I have one with me, always a safe bet. As a matter of fact, I decided not to bother with any other shells anymore
TRF415boy is offline   Reply With Quote
Old 01-09-2007, 04:39 PM   #17006
Tech Regular
 
Join Date: Sep 2005
Posts: 454
Default

I haved tried both Mazda 6 and Ride Accord Type B. I like the Accord better because it is faster on the straight and it is more aggressive than Mazda 6, faster response.
trf_racer is offline   Reply With Quote
Old 01-09-2007, 05:05 PM   #17007
Tech Regular
 
LBSR415's Avatar
 
Join Date: Jun 2006
Location: RAZOR GRAPHIX
Posts: 480
Default

Quote:
Originally Posted by trf_racer
I haved tried both Mazda 6 and Ride Accord Type B. I like the Accord better because it is faster on the straight and it is more aggressive than Mazda 6, faster response.
thought of that too but ride bodies are not ROAR legal,,,,Thanks Guys I thing Mazda speed 6 it will be
__________________
Team OHP
Razor Graphix
East Coast R/C
Pantheon Motorsports

These fish,,,are frozen.
LBSR415 is offline   Reply With Quote
Old 01-09-2007, 05:15 PM   #17008
Tech Regular
 
Join Date: Sep 2005
Posts: 454
Default

Quote:
Originally Posted by LBSR415
thought of that too but ride bodies are not ROAR legal,,,,Thanks Guys I thing Mazda speed 6 it will be
Your local track races based on ROAR rules? If not, Ride Accord is definately better than Mazda 6.
trf_racer is offline   Reply With Quote
Old 01-09-2007, 05:32 PM   #17009
Tech Master
 
TRF415boy's Avatar
 
Join Date: Dec 2004
Posts: 1,857
Default

Quote:
Originally Posted by LBSR415
thought of that too but ride bodies are not ROAR legal,,,,Thanks Guys I thing Mazda speed 6 it will be
I personally was talking of the "real" mazda 6. I haven't tried the new one, and not planning to since all the shells i tried revealed themselves useless (last to date, moorespeed mazda, found it absolutely crap).
TRF415boy is offline   Reply With Quote
Old 01-09-2007, 05:39 PM   #17010
Tech Regular
 
Join Date: Sep 2005
Posts: 454
Default

Quote:
Originally Posted by TRF415boy
I personally was talking of the "real" mazda 6. I haven't tried the new one, and not planning to since all the shells i tried revealed themselves useless (last to date, moorespeed mazda, found it absolutely crap).
Why is Moorespeed Mazda 6 bad?
trf_racer is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
TAMIYA TRF415 Xray XB8 R/C Items: For Sale/Trade 32 04-04-2008 08:50 PM
Tamiya TRF415 Crashmaster R/C Items: For Sale/Trade 19 12-13-2006 04:48 PM
Tamiya TRF415 MS NIB koabich R/C Items: For Sale/Trade 8 11-11-2005 07:28 AM
F/S Tamiya TRF415 rraden R/C Items: For Sale/Trade 20 06-10-2005 09:02 PM
Tamiya Evo IV or TRF415 TheDevil Electric On-Road 23 10-15-2004 07:27 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 06:31 PM.


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