R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 03-06-2010, 06:49 AM   #391
Tech Adept
 
StevenOlsen's Avatar
 
Join Date: Oct 2007
Location: Denmark
Posts: 176
Default

Quote:
Originally Posted by hacker View Post
I always thought 'feel' setting is like the expo function on your transmitter. Not going to make it accelerate any quicker, but just narrows up the powerband where you want it.

is it fair to say your gearing the sxx ss about 6fdr with a 17.5?

boost setting on 4 seems rather low, do you race on a small track?

have you tried 10boost with a higher fdr?
the feel is how smooth or how much feel you want, så you could say it like the expo on your transmitter have just never think of it like that.

right now im gearing 8 fdr. but yes it is on a small really track the streght is about 20 meter and about 100 meter on a lap.

4 in boost is low but have problems with the motor temp so just set the speedo in boost 4 and tryed testing feel and fdr. will test next saturday just putting the ESC in 10 on feel and test the boost and fdr to find the perfekt setup on the ESC.

i have also tryed the ESC with both boost and feel in 10 but on a Speed Passion 17.5 and no problems geared like a tekin 7.0 (on 480m2 carpet). but the X12 have so much timming build in already so it just gets hot . tryed it geared 8 fdr and after 2 min the motor was 130 celcius on the 480m2 track

so my starting point on the ESC on the track with the testing i have done would be 3, 8-10, 3-4, 0-1. and gear 2fdr lower then on a SPX or about the same as a Tekin and ofcouse with a x12 17.5 its really just testing what the best setting is for your track. and remember to tjek temp offen in the beginning so you dont burn the motor
__________________
Steven Olsen
CAR: Awsomatix A700L.
Nosram 7000 Batteries.
Nosram Comet HD ESC.
Nosram Pure 2 evolution Motor.
StevenOlsen is offline   Reply With Quote
Old 03-07-2010, 10:14 AM   #392
Tech Rookie
 
Join Date: Sep 2007
Posts: 19
Default

Hey Guys,
can any LRP team driver help me out here? i have a LRP SXX SS with a Speed Passion V3 10.5 motor. the same combination Alexander Stocker is using .
Sadly we have been expeirencing problems, we have blown up the esc just by changing the boost profile. Not happy

This is what we did:
At the start we ran 3,3,4,0 everything worked fine, felt very smooth. so we decided to turn up the feel to 6. so it was 3,6,4,0 everything worked fine. Then we decided to turn up the boost by 1. So that was: 3,6,5,0 and the car stuttered on the track and started smoking.

Could anyone help ? What profiles are you running?
Thanks in advance Ben
youngben is offline   Reply With Quote
Old 03-07-2010, 02:27 PM   #393
Tech Fanatic
 
hotdognobun's Avatar
 
Join Date: Sep 2009
Location: San Diego
Posts: 823
Trader Rating: 31 (100%+)
Default

Anyone interested on a new SXX TC Spec for $180.00 check out my thread
hotdognobun is offline   Reply With Quote
Old 03-07-2010, 08:08 PM   #394
Tech Adept
 
Join Date: Sep 2009
Posts: 117
Default

There were a few Tekins and Hobbywing in the 11.5T A main. I qualified 2nd and finished 3rd. I got a LRP SXX SS the evening before the controlled practice rounds and I only had time to run 3 packs with it before the race, and I have to say it was easier and more precice to drive than the Tekin. It drove almost like my old SPX, but with more power and speed, I felt more comfotable with it, so I went with it for the race. If I could have more time with it, I think I could get it to drive slightly faster lap time.

The Tekin had more raw power on the straightaway, but I found that I had to think too much about when the turbo was going to kick in and that affected my driving. I am sure Tekin will come up with something better for large tracks soon because they are getting into the outdoor season shortly.

Most people would think on a large track like RC Addicts, more power and speed could improve the lap time. I found that the limit was actually with the RJ tires we were running. These tires could only handle limited load in the corners, so if the power was not applied precisely in the corners, the car could get unbalanced and get out of line easily. I found that the more power I had, the easier it was for me to mess up my line. These tires were not very stable because they use sponge as insert (not foam), so it would be quite difficult to make correction once the car went out of line.

The time lost by a slight mistake in the corners would be more than the time gain on the straightaway. So, for this particular TITC race, I have to say SXX SS is the more suitable ESC, due to the several factors I mentioned above.

My car was not the fastest on the straightaway, but my lap times were among the fastest. I had the fastest single lap time in 2 of the 4 qualifying rounds. I also TQed 1 round. So, in my opinion, knowing your own limit, and driving with the "right" amount of power is the key to achieve your optimum lap time. Too much power would hurt the lap time for sure.

I have to agree that we raced speed controllers this year, not rc cars The Nosram team had their version of SXX SS MK2 4 days before the race and no one else could get one. No LRP SXX SS were available at that time neither. I was planning to run my Tekin for the race. In order to stay competitive, I spent more time tuning my Tekin than setting up my car before the race, and I personally think this is not healthy for this hobby. I was so tired of all the ESC thing, I wished I could just focus on driving and car setup instead of messing with computer. I hope in future races, they will control the ESC and any other equipment that could make too big of a difference in speed. Stock class racing should be more about driving and setup, this is just my 2 cents


Quote:
Originally Posted by Me_MrTyson View Post
The results are in TITC in Mod the LRP / Nosram was the ESC to have.

Nothing but LRP got into the final, Big pat on the back LRP showing there quality and winning formula is a match for any ESC out there including the "T" So under mod condition at this race venue nothing could touch it. (noticed I used the word "This Venue!" )

I cannot find anywhere the information on the 11.5t otherwise known as brushless?? Where did the SXX ss come in this race??? was it an all LRP / Nosram affair all over again or was there something else?
andrew188 is offline   Reply With Quote
Old 03-07-2010, 08:12 PM   #395
Tech Champion
 
Join Date: Oct 2005
Location: Cincinnati, OH
Posts: 5,360
Trader Rating: 38 (100%+)
Default

Got mine on the track today. It was very fast but I had trouble keeping my motor temps down and think I have messed up my x-12 motor. The black covering on the rotor started to come off and the coils look a little blackish (not sure if they do new??).

Ran 17.5 with: 5.5 to 6.0 FDR, 4 dots, 2,6,5,0
or8ital is offline   Reply With Quote
Old 03-07-2010, 08:22 PM   #396
Tech Adept
 
Join Date: Sep 2009
Posts: 117
Default

Quote:
Originally Posted by or8ital View Post
Got mine on the track today. It was very fast but I had trouble keeping my motor temps down and think I have messed up my x-12 motor. The black covering on the rotor started to come off and the coils look a little blackish (not sure if they do new??).

Ran 17.5 with: 5.5 to 6.0 FDR, 4 dots, 2,6,5,0

The X12 stock motors doesn't seem to work very well with ESCs that add lots of software timing. With X12, you have to a "a lot" more conservative in the ESC setting, motor timing and gearing, as compared to other motors. X12 also tends to run hotter than other motors, so again, you need to be very conservative.
andrew188 is offline   Reply With Quote
Old 03-07-2010, 08:26 PM   #397
Tech Champion
 
Join Date: Oct 2005
Location: Cincinnati, OH
Posts: 5,360
Trader Rating: 38 (100%+)
Default

Quote:
Originally Posted by andrew188 View Post
The X12 stock motors doesn't seem to work very well with ESCs that add lots of software timing. With X12, you have to a "a lot" more conservative in the ESC setting, motor timing and gearing, as compared to other motors. X12 also tends to run hotter than other motors, so again, you need to be very conservative.
I was under the impression those were conservative settings. Two people on this thread posted similar settings. The timing on the motor was set back as far as it would go with the 4 dot, the boost was set at only 5.
or8ital is offline   Reply With Quote
Old 03-07-2010, 08:48 PM   #398
Tech Adept
 
Join Date: Sep 2009
Posts: 117
Default

Quote:
Originally Posted by or8ital View Post
I was under the impression those were conservative settings. Two people on this thread posted similar settings. The timing on the motor was set back as far as it would go with the 4 dot, the boost was set at only 5.
I am not experienced with 17.5T, but with the 10.5T, I had to run very, very conservative settings. I learned it the hard way as I broke a brand new 10.5T on its first run, with what I thought was already conservative settings. So, start from very conservative settings and gearing, and temp your motors and ESC every 2-3 laps, then go from there. It generally took me about 4-5 packs to find the ball park settings and gearing for a new motor that I have not run before. Don't expect to hit the optimum setting on your first packs, as that could be too risky. X12 stock motors are very different from Feigao based motors such as the Duos.
andrew188 is offline   Reply With Quote
Old 03-07-2010, 09:00 PM   #399
Tech Fanatic
 
BLUE 2's Avatar
 
Join Date: Oct 2006
Posts: 820
Trader Rating: 23 (100%+)
Talking

Hi

I'm running a X12 17.5 with -10 deg / 4 dot timing insert & its coming of at 75 deg to 85 deg with a ratio of 6.76 should i go higher or lower with ratio to bring the temps down ?

Was thinking of going to around 7 ratio .

Track has 2 some what large straights but also a tight infield .

Any tips
__________________
Cars Offroad : TLR 22B - TLR 22B 2.0 - TLR 22T - TLR 22SCT - TLR TEN-SCTE 2.0
Cars Onroad : HB Cyclone TC - TRF 416X - Tamiya TA05 - Serpent s411 eryx 2.0
BLUE 2 is offline   Reply With Quote
Old 03-07-2010, 11:06 PM   #400
Tech Adept
 
StevenOlsen's Avatar
 
Join Date: Oct 2007
Location: Denmark
Posts: 176
Default

Quote:
Originally Posted by or8ital View Post
Got mine on the track today. It was very fast but I had trouble keeping my motor temps down and think I have messed up my x-12 motor. The black covering on the rotor started to come off and the coils look a little blackish (not sure if they do new??).

Ran 17.5 with: 5.5 to 6.0 FDR, 4 dots, 2,6,5,0

how big was the track because 5.5-6.0 FDR is for me to much geared i ran the X12 with 4dot, 7,19 timing and 3,8,4,0 on a 480M2 carpet track with god flow.
i had also problems with the temp and the motor have been over 130 celcius and it stil works fine .
__________________
Steven Olsen
CAR: Awsomatix A700L.
Nosram 7000 Batteries.
Nosram Comet HD ESC.
Nosram Pure 2 evolution Motor.
StevenOlsen is offline   Reply With Quote
Old 03-07-2010, 11:10 PM   #401
Tech Adept
 
StevenOlsen's Avatar
 
Join Date: Oct 2007
Location: Denmark
Posts: 176
Default

Quote:
Originally Posted by BLUE 2 View Post
Hi

I'm running a X12 17.5 with -10 deg / 4 dot timing insert & its coming of at 75 deg to 85 deg with a ratio of 6.76 should i go higher or lower with ratio to bring the temps down ?

Was thinking of going to around 7 ratio .

Track has 2 some what large straights but also a tight infield .

Any tips
how is the speed compared with the other cars om the track both on the stregth and infield. and what is your settings on the ESC the gearing and temp sound like to be the perfekt combi for me, but try 7 in FDR, remember its not about the stregth speed if you lose to muck power infield
__________________
Steven Olsen
CAR: Awsomatix A700L.
Nosram 7000 Batteries.
Nosram Comet HD ESC.
Nosram Pure 2 evolution Motor.
StevenOlsen is offline   Reply With Quote
Old 03-08-2010, 03:29 AM   #402
Tech Initiate
 
Join Date: Dec 2007
Posts: 23
Default ETS 4 in Poland

Just got back from the ETS race in Poland. We brought 2 of the updated controllers to the race, 2 beeps on start up, and they both worked with out problems during the race. Our cars were among the fastest on the large open circuit, and very controllable in the infield. Unfortunately our driving skills didn't bring the cars on the podium, but we had no trouble keeping with the Tekins and AE in terms of power.

For the ETS races we use SP v3 13.5 motors. We ran 3/4/8/0 on the SXX, with a 5,4 gear ratio. The motors were comming off the track at 70 - 80 deg celcius, with neutral timing on the motor. You can see the track on ets.redrc.net.

A lot of people had problems with different brands of controllers, and some people burned motors. The new generation of controllers bring the motors closer to their limit, and it is quite easy to burn your motor or ESC. This is part ofbeing so close to the edge, and pushing the equipment to the limit, and applies to all the new controllers or even to all high performance equipment.

Be cautios when changing settings. Have somebody trackside to check the temperatures every 2 minutes, when testing new settings. Changing the gear ratio by small amounts, will usually result in smaller changes in temperature 5 - 10 deg. Be carefull when changing timing settings, small changes may result in big changes in temperature. Don't drive more than 5 minutes, even when practising, when settings are at the edge. If the car looses performance or doesn't go faster, come off the track, don't finish the session as it won't produce a faster time anyway. Check your car between every run, a seized up bearing, will probably burn the motor or ESC. When practising at home, leave a margin for error don't run every pack at the limit.

Best,
Peter Knudsen
petk is offline   Reply With Quote
Old 03-08-2010, 05:59 AM   #403
Tech Master
 
chicky03's Avatar
 
Join Date: Mar 2002
Posts: 1,993
Trader Rating: 1 (100%+)
Send a message via AIM to chicky03
Default

Quote:
Originally Posted by or8ital View Post
Got mine on the track today. It was very fast but I had trouble keeping my motor temps down and think I have messed up my x-12 motor. The black covering on the rotor started to come off and the coils look a little blackish (not sure if they do new??).

Ran 17.5 with: 5.5 to 6.0 FDR, 4 dots, 2,6,5,0
At the regional this past weekend we found that boost 4 with 5.7 final was good! 200 deg no fan.
__________________
Serpent America, Picco, Desoto Racing, Motiv, J Concepts, Nitro Pro fuel, PT RC Racing Oils, TQ Wire(best wire ever!), BSR tires, Arrowmax, Xceed, Sanwa, Amain Hobbies, MIP, Getcustomized, EZ Customs
chicky03 is offline   Reply With Quote
Old 03-08-2010, 06:02 AM   #404
Tech Champion
 
Join Date: Oct 2005
Location: Cincinnati, OH
Posts: 5,360
Trader Rating: 38 (100%+)
Default

Quote:
Originally Posted by chicky03 View Post
At the regional this past weekend we found that boost 4 with 5.7 final was good! 200 deg no fan.
Thanks Chicky, I will give that a shot. Those temps sounds much better. I was coming off at 245 with a fan.
or8ital is offline   Reply With Quote
Old 03-08-2010, 06:31 AM   #405
Tech Addict
 
chubbspeterson's Avatar
 
Join Date: Jun 2005
Location: Ridgemont
Posts: 518
Default

Quote:
Originally Posted by chicky03 View Post
At the regional this past weekend we found that boost 4 with 5.7 final was good! 200 deg no fan.
This was the setup for me, car was so fast, and had plenty of rip out of the corners. Also still had a little cog in the motor and "felt" like an old brushed motor to drive. It also had little to no fade over the 6 min mark, I fact I ran some pratice runs in the 7-8 minute mark before the car would fall off pace.
__________________
Mike Demone
7-Eleven, National Accounts Manager
Ridgemont, CA, 90026
"I vowed to never let this happen.."
chubbspeterson is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
LRP SXX TC SPEC Stein Tumert Electric On-Road 190 08-20-2012 05:52 AM
LRP Vector X12 StockSpec and SXX stockspec mac853 Electric On-Road 224 03-27-2010 02:54 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 12:28 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