R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 07-30-2013, 06:10 AM   #2281
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,529
Default

I think the Spring chart on the Reflex website needs updating.
On the chart it says the T4 Yellows are 14.5-15.1, but on the spring page it says they go to 15.2.

Also, T4 Orange are 17.0 on the chart and 16.7 on the springs page etc.

Still not measured some Xray 2.5's?
__________________
Xray T4'16, T4'14 (Wet Car)
Xray X12 2016
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RD Disco
Skiddins is offline   Reply With Quote
Old 07-30-2013, 05:32 PM   #2282
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,676
Trader Rating: 11 (100%+)
Default

Go by what the chart says. The product page is the manufacturer rating, the chart is a temperature adjusted value in order to remain a constant value in relation to other springs.

I have not had time to measure 2.5 springs. Things are very busy behind the scenes with our new facility build out and the testing of our RX4 T4 chassis.

What I can say is that I can see the light at the end of the tunnel. I should be moving into the new facility this weekend if I can get everything sorted out and the new chassis should go into production sometime next week. So far the results are very promising. I will post pictures and start a pre-order as soon as I am able to do so.
__________________
REFLEX RACING/ RSD/ GIZMO RACING USA/ HOBBYWING/ AXON/ QTEQ/ TEAM PRIME
CristianTabush is offline   Reply With Quote
Old 07-30-2013, 09:37 PM   #2283
Tech Regular
 
Join Date: Dec 2006
Location: New Zealand
Posts: 364
Trader Rating: 1 (100%+)
Default

Cristian

I have sent you a email just checking to see if you got it, no hurry on the reply

Edwin
Edwin Pibal is offline   Reply With Quote
Old 07-30-2013, 10:06 PM   #2284
Tech Elite
 
andrewdoherty's Avatar
 
Join Date: Jan 2005
Location: ★Wylie, TX★
Posts: 3,763
Trader Rating: 47 (100%+)
Default

Thanks a ton for showing James and I the ropes at RSD Speedway Sunday. I had a great time and the place looks fantastic. I can't wait for some epic races there for many years! Also looking forward to your new chassis/car. It looked promising.

AWD
__________________
"Whether you think you can, or think you can't, you're right." -Henry Ford
"[Driving] Genius is 1% inspiration, and 99% perspiration" -T.A. Edison
|◤Hobbywing◢|◤SpeedzoneUSA.com◢|◤Pro-One◢|
|◤ReflexRacing.net◢|◤Protoform◢|◤AVID R/C◢|
andrewdoherty is offline   Reply With Quote
Old 08-05-2013, 01:26 PM   #2285
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,529
Default

Testing springs etc last weekend and started to doubt some of the effects I was getting.

Should softer or harder springs give more initial steering?

I understand that whichever it is it might cause a loss of mid corner steering but I can make other adjustments for that.

Skiddins
__________________
Xray T4'16, T4'14 (Wet Car)
Xray X12 2016
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RD Disco
Skiddins is offline   Reply With Quote
Old 08-05-2013, 01:48 PM   #2286
Tech Fanatic
 
erchn's Avatar
 
Join Date: Aug 2010
Location: Union City, CA
Posts: 779
Trader Rating: 7 (100%+)
Default

Quote:
Originally Posted by Skiddins View Post
Testing springs etc last weekend and started to doubt some of the effects I was getting.

Should softer or harder springs give more initial steering?

I understand that whichever it is it might cause a loss of mid corner steering but I can make other adjustments for that.

Skiddins
IMO, there is no simple answer.

That said, I would expect stiffer springs to give quicker reactions off center, but maybe cause the car to take longer to get to the middle of the corner, as weight transfer takes more time.

This is assuming you aren't already too stiff. For instance on a T4, starting from 2.7 in the front though (which is a relatively balanced spring), above is what I would expect.
__________________
RCAmerica ; Team Powers USA ; Reflex Racing ; RC≥ RC Crew Chief ; Bezerk RC

Last edited by erchn; 08-05-2013 at 02:10 PM. Reason: Bad assumption made less assuming.
erchn is offline   Reply With Quote
Old 08-05-2013, 02:37 PM   #2287
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,529
Default

Quote:
Originally Posted by erchn View Post
IMO, there is no simple answer.

That said, I would expect stiffer springs to give quicker reactions off center, but maybe cause the car to take longer to get to the middle of the corner, as weight transfer takes more time.

This is assuming you aren't already too stiff. For instance on a T4, starting from 2.7 in the front though (which is a relatively balanced spring), above is what I would expect.
I fitted a pair of AME green springs, which seem similar to Xray 2.9's (having gone from RSD Silver's) and the steering felt lazy, I admit it got me ftd but it felt too much like hard work to get fast laps as it felt too safe.
__________________
Xray T4'16, T4'14 (Wet Car)
Xray X12 2016
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RD Disco
Skiddins is offline   Reply With Quote
Old 08-05-2013, 03:01 PM   #2288
Tech Fanatic
 
erchn's Avatar
 
Join Date: Aug 2010
Location: Union City, CA
Posts: 779
Trader Rating: 7 (100%+)
Default

Quote:
Originally Posted by Skiddins View Post
I fitted a pair of AME green springs, which seem similar to Xray 2.9's (having gone from RSD Silver's) and the steering felt lazy, I admit it got me ftd but it felt too much like hard work to get fast laps as it felt too safe.
I've not tested any AME springs. But I will say that just because it claims to be stiffer or even measures stiffer it can feel very different. Take, for instance, the RSD Silver T4 vs. Green T4 springs, they measure nearly identical, but they feel pretty different on the track. The Green's (to me) feel lazier, though they measure slightly stiffer.

Also, if you are going all the way up to a 2.9ish spring, and not making other changes like lowering the amount of front anti-sway bar, the car may not generate much lateral traction due to lack of roll. When running RSD Red springs on my car, I run a 1.1 front bar, as example.

I would say that an easier test would be just standing your shock up a bit more with the same spring, to see if it generates the reaction to change you are expecting.
__________________
RCAmerica ; Team Powers USA ; Reflex Racing ; RC≥ RC Crew Chief ; Bezerk RC
erchn is offline   Reply With Quote
Old 08-05-2013, 04:00 PM   #2289
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,529
Default

Quote:
Originally Posted by erchn View Post
I've not tested any AME springs. But I will say that just because it claims to be stiffer or even measures stiffer it can feel very different. Take, for instance, the RSD Silver T4 vs. Green T4 springs, they measure nearly identical, but they feel pretty different on the track. The Green's (to me) feel lazier, though they measure slightly stiffer.

Also, if you are going all the way up to a 2.9ish spring, and not making other changes like lowering the amount of front anti-sway bar, the car may not generate much lateral traction due to lack of roll. When running RSD Red springs on my car, I run a 1.1 front bar, as example.

I would say that an easier test would be just standing your shock up a bit more with the same spring, to see if it generates the reaction to change you are expecting.
I have the Reds, but haven't tried them as they are so stiff.
I have to be carefull at my home track as it isn't completely flat, so going to stiff can cause other issues, like flying off the sweeper But I'll try the red's at some point, might have to buy some other roll bars.
I do tend to run a 1.3 front roll bar on asphalt (and a 1.3 rear)
Another thing I haven't tried is lowering the front roll centre's (at the wishbone) as I'm always worried it migth make the steering too lazy.

Skiddins
__________________
Xray T4'16, T4'14 (Wet Car)
Xray X12 2016
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RD Disco
Skiddins is offline   Reply With Quote
Old 08-09-2013, 05:47 AM   #2290
Tech Adept
 
adriang79's Avatar
 
Join Date: Nov 2009
Location: Hobart, Tasmania
Posts: 119
Trader Rating: 5 (100%+)
Default

Cristian how far away are the TC6.1 hard anodized spool cups?
__________________
www.stmcc-hobart.weebly.com
STMCC Secretary

Team Associated TC6.2 Factory Team - Hobbywing V3.1 Stock spec -ORCA TX 13.5
TOP Rebel R-F01 - Hobbywing Justock - Thunder Power 21.5
adriang79 is online now   Reply With Quote
Old 08-09-2013, 10:37 AM   #2291
Tech Elite
 
CristianTabush's Avatar
 
Join Date: Oct 2002
Location: Houston
Posts: 2,676
Trader Rating: 11 (100%+)
Default

Don't have a date, but soon. We are working out some kinks with some samples from a different vendor. Should be late August/Early September if all goes well.
__________________
REFLEX RACING/ RSD/ GIZMO RACING USA/ HOBBYWING/ AXON/ QTEQ/ TEAM PRIME
CristianTabush is offline   Reply With Quote
Old 08-09-2013, 11:03 AM   #2292
Tech Elite
 
Jon Williams's Avatar
R/C Tech Elite Subscriber
 
Join Date: Oct 2003
Location: New Jersey
Posts: 2,753
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by erchn View Post
Also, if you are going all the way up to a 2.9ish spring, and not making other changes like lowering the amount of front anti-sway bar, the car may not generate much lateral traction due to lack of roll. When running RSD Red springs on my car, I run a 1.1 front bar, as example.
Yeah, I've been playing with the RSD reds on my car as well (coincidentally with a lighter front bar as well). I really like the way they feel in mod compared to the silvers or 2.5-2.8s when the bite comes up. The car feels more consistent lap to lap.

Eric (is that right?), what's your experience with the 2.5-2.8s compared to the reds?
Jon Williams is offline   Reply With Quote
Old 08-09-2013, 11:22 AM   #2293
Tech Fanatic
 
erchn's Avatar
 
Join Date: Aug 2010
Location: Union City, CA
Posts: 779
Trader Rating: 7 (100%+)
Default

Quote:
Originally Posted by Jon Williams View Post
Yeah, I've been playing with the RSD reds on my car as well (coincidentally with a lighter front bar as well). I really like the way they feel in mod compared to the silvers or 2.5-2.8s when the bite comes up. The car feels more consistent lap to lap.

Eric (is that right?), what's your experience with the 2.5-2.8s compared to the reds?
Ethan, actually, no biggy.

I've not really liked the 2.5-2.8, car feels a bit too lazy going in, and not consistent through the rest of the corner.

The reds do feel really good, IMO, but I would like to find a bit more mid-corner steering. You definitely need lighter bars though, in the rear I'm not running a bar at all.
__________________
RCAmerica ; Team Powers USA ; Reflex Racing ; RC≥ RC Crew Chief ; Bezerk RC
erchn is offline   Reply With Quote
Old 08-09-2013, 11:44 AM   #2294
Tech Elite
 
Jon Williams's Avatar
R/C Tech Elite Subscriber
 
Join Date: Oct 2003
Location: New Jersey
Posts: 2,753
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by erchn View Post
Ethan, actually, no biggy.
My bad. Sorry about that.
Quote:
I've not really liked the 2.5-2.8, car feels a bit too lazy going in, and not consistent through the rest of the corner.
That's how I've felt about them.
Quote:
The reds do feel really good, IMO, but I would like to find a bit more mid-corner steering. You definitely need lighter bars though, in the rear I'm not running a bar at all.
Yeah, I'm in the same position. I have a couple of things to try tomorrow that I hope will ameliorate the problem.
Jon Williams is offline   Reply With Quote
Old 08-11-2013, 08:54 AM   #2295
Tech Master
 
bshookup's Avatar
 
Join Date: Jul 2005
Location: Olympia, WA
Posts: 1,543
Trader Rating: 18 (100%+)
Default

PM to Cristian 8/7/13
__________________
TOP RACING: www.top-racing.jp/
TEAM POWERS: www.teampowersusa.net/
bshookup is offline   Reply With Quote
Reply



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 12:59 AM.


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

SEO by vBSEO 3.5.0