R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-21-2010, 09:51 AM   #1
Tech Master
 
FLHX1550's Avatar
 
Join Date: Mar 2010
Location: Wyoming, MN
Posts: 1,712
Trader Rating: 11 (100%+)
Default LRP SXX V2 for 1/12th Stock - Opinion

Everyone,
I am not trying to start a "what ESC is better" thread, but I am really considering the LRP SXX V2 for running some 1/12th stock on carpet, and wondered how competitive they are.

I know the RS is the "one to have", but the 1s capability on the LRP with no need for a booster/battery is very attractive to me, I just dont like having to buy more and more "stuff"

Now the RS and Castle have very nice, PC based software to tune the timing, wondered how those out there with teh SXX are tuning it, or are they just using the buttons/lights on the ESC?
__________________
JConcepts - TKO - RW Mods - B-Fast - MODX Motors & Batteries - Skare OCD Designs
FLHX1550 is offline   Reply With Quote
Old 09-21-2010, 10:11 AM   #2
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Default

Well I'm running one in my 12th. We run 13.5 *no boost* at my local carpet track and I'm very competitive speed-wise. I haven't had any problems with this esc whatsoever. So depending on whats ran at your track (boost vs. no boost), I don't feel this choice would be a bad one.

hth's

- JBee
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO
JayBee is offline   Reply With Quote
Old 09-21-2010, 10:58 AM   #3
Tech Elite
 
MugenDrew's Avatar
 
Join Date: Aug 2006
Location: Apollo Beach, Florida
Posts: 2,098
Trader Rating: 30 (100%+)
Default

LRP is kinda got us all in limbo rite now. They have stated (burito) on the sxx stock spec thread that there will be an announcement on there web site in early October reguarding the SXX STOCK SPEC. V2. They where updating ver.1 (mrk I, II and III) at the IIC to V2's. So it sounds like the people that already own them will be able to send them in for the new firmware and anybody that is looking to buy might want to wait.
From LRP's forum the sole intent of the stock spec is for the spec motors and has much more agressive timing profiles.
__________________
Mugen Seiki Racing Desoto Racing Race AKA Byron Original Fuels Arrowmax Sanwa RC America
MugenDrew is online now   Reply With Quote
Old 09-21-2010, 11:21 AM   #4
Tech Master
 
FLHX1550's Avatar
 
Join Date: Mar 2010
Location: Wyoming, MN
Posts: 1,712
Trader Rating: 11 (100%+)
Default

That's what I was gathering on the LRP forums also.

We do run boost settings, and the Tekin is 90% dominant at our track.

I am a little dis-heartened because it seems to me that the other manufacturers don't need a "stock" spec ESC and a mod one. There is enough adjustability to accomplish both.

I'd rather run the LRP because I dont have to run a receiver booster, but I am not going to be able to wait till Mid-Late october for a V2 Stock ESC to come out.
__________________
JConcepts - TKO - RW Mods - B-Fast - MODX Motors & Batteries - Skare OCD Designs
FLHX1550 is offline   Reply With Quote
Old 10-21-2010, 02:54 PM   #5
Tech Champion
 
oXYnary's Avatar
 
Join Date: Dec 2003
Posts: 6,301
Trader Rating: 4 (100%+)
Send a message via AIM to oXYnary Send a message via Yahoo to oXYnary
Default

Couldn't they just offer optional firmware for the competition for spec racing with it versus a different esc? (Which on a separate subject have they announced a USB & program adapter yet?)
__________________
www.3drcracing.com <<RC Video Game.
Kyosho Mini-Z Buggy, Moto Racer | Losi Micro SCT, 8ight Mini
oXYnary is offline   Reply With Quote
Old 10-21-2010, 07:49 PM   #6
Tech Adept
 
Dread Pirate's Avatar
 
Join Date: Jun 2010
Location: OC/RC Raceway
Posts: 248
Trader Rating: 15 (100%+)
Default

Like you, the built in booster, dynamic timing, and small size were very attractive for putting this into a 1/12th scale.

I used to run the Tekin RS, sold it all when my carpet track closed, bought the Havoc 1S to run the non-timing class at Vegas, and then bought the SXX v2 to run at my new carpet tracks 17.5 timing class.

Then I find out that the v2 is only for mod motors and that the dynamic timing wouldn't even kick in at the RPMs that a 17.5 generates. I traded a guy for his SXX Stock Spec and raced it last weekend. I think it's going to be a very good ESC, but the software needs some improvement, and they are about to release some new Sw.

Without timing, at Vegas and at my new track, rollouts of 100-105mm were giving the best lap times. I set the timing to 10 with rollouts ranging from 65 to 104 but never felt the dynamic timing kicking in. When I dropped the rollout to 50 I could finally feel it kicking in at the end of the straight, so I dropped the rollout to 45 for it to kick in sooner, but the car was slower due to the lower rollout.

This has left me thinking that the Sw hasn't really been tuned yet, the band is way too tight to be used effectively. Lot's of variables; I've spent some time adjusting, recording, adjusting, recording, etc. Not done, but I'm convinced that the current Sw is too simplisticly based on RPM alone and I'm looking forward to the next release, hoping it will let this fine ESC shine in 1-cell 1/12th configurations.
__________________
"We face each other as God intended. Sportsman-like. No tricks, skill against skill alone." -Fezzik
Dread Pirate is offline   Reply With Quote
Old 10-21-2010, 07:54 PM   #7
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Default

Let me clarify my above statement.....

The LRP SXX V.2 is NOT made for SPEC racing!!! 17.5 or 13.5 no boost racing
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO
JayBee is offline   Reply With Quote
Old 10-22-2010, 01:33 AM   #8
Tech Champion
 
oXYnary's Avatar
 
Join Date: Dec 2003
Posts: 6,301
Trader Rating: 4 (100%+)
Send a message via AIM to oXYnary Send a message via Yahoo to oXYnary
Default

Quote:
Originally Posted by JayBee View Post
Let me clarify my above statement.....

The LRP SXX V.2 is NOT made for SPEC racing!!! 17.5 or 13.5 no boost racing
But the thing is since this version will supposedly have a usb adapter coming out. There should be no reason they cannot offer such firmware in a future update?

Right No reason people cant have access to the spec timing as well. Or better yet. Just offer one version and offer different profiles. Period.

Or is the underlying thing here is LRP is NOT going to do this in order to purposely make a spec and competition esc? (In which case its time to look elsewhere)
__________________
www.3drcracing.com <<RC Video Game.
Kyosho Mini-Z Buggy, Moto Racer | Losi Micro SCT, 8ight Mini
oXYnary is offline   Reply With Quote
Old 10-22-2010, 07:44 AM   #9
avs
Tech Master
 
avs's Avatar
 
Join Date: Jul 2006
Posts: 1,175
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by Dread Pirate View Post
Like you, the built in booster, dynamic timing, and small size were very attractive for putting this into a 1/12th scale.
...
Not done, but I'm convinced that the current Sw is too simplisticly based on RPM alone and I'm looking forward to the next release, hoping it will let this fine ESC shine in 1-cell 1/12th configurations.
if the dynamic timing is rpm based then it will be challenging to get 1 profile that works for both 1s and 2s voltage ranges. sounds possible that LRP 'tuned' the profile for 2s 17.5,13.5 ranges?
__________________
Tony Shimko
avs is offline   Reply With Quote
Old 10-22-2010, 08:52 AM   #10
Tech Elite
 
Join Date: Oct 2002
Location: Mclean, VA
Posts: 3,940
Trader Rating: 45 (100%+)
Default

So are the internal components different between the SXX V2 and the SXX SS V2? If not, then would be nice to be able to download either the SXX V2 or the SXX SS V2. Then you could run the speedo in a mod or ss mode.
Apex is offline   Reply With Quote
Old 10-22-2010, 08:56 AM   #11
Tech Elite
 
Join Date: Oct 2002
Location: Mclean, VA
Posts: 3,940
Trader Rating: 45 (100%+)
Default

Quote:
Originally Posted by Dread Pirate View Post
Like you, the built in booster, dynamic timing, and small size were very attractive for putting this into a 1/12th scale.

I used to run the Tekin RS, sold it all when my carpet track closed, bought the Havoc 1S to run the non-timing class at Vegas, and then bought the SXX v2 to run at my new carpet tracks 17.5 timing class.

Then I find out that the v2 is only for mod motors and that the dynamic timing wouldn't even kick in at the RPMs that a 17.5 generates. I traded a guy for his SXX Stock Spec and raced it last weekend. I think it's going to be a very good ESC, but the software needs some improvement, and they are about to release some new Sw.

Without timing, at Vegas and at my new track, rollouts of 100-105mm were giving the best lap times. I set the timing to 10 with rollouts ranging from 65 to 104 but never felt the dynamic timing kicking in. When I dropped the rollout to 50 I could finally feel it kicking in at the end of the straight, so I dropped the rollout to 45 for it to kick in sooner, but the car was slower due to the lower rollout.

This has left me thinking that the Sw hasn't really been tuned yet, the band is way too tight to be used effectively. Lot's of variables; I've spent some time adjusting, recording, adjusting, recording, etc. Not done, but I'm convinced that the current Sw is too simplisticly based on RPM alone and I'm looking forward to the next release, hoping it will let this fine ESC shine in 1-cell 1/12th configurations.
Did you try max timing on the motor and playing around with the boost?
Apex is offline   Reply With Quote
Old 10-22-2010, 12:49 PM   #12
Tech Champion
 
oXYnary's Avatar
 
Join Date: Dec 2003
Posts: 6,301
Trader Rating: 4 (100%+)
Send a message via AIM to oXYnary Send a message via Yahoo to oXYnary
Default

Quote:
Originally Posted by Apex View Post
So are the internal components different between the SXX V2 and the SXX SS V2? If not, then would be nice to be able to download either the SXX V2 or the SXX SS V2. Then you could run the speedo in a mod or ss mode.
+1

Any LRP reps on here?
__________________
www.3drcracing.com <<RC Video Game.
Kyosho Mini-Z Buggy, Moto Racer | Losi Micro SCT, 8ight Mini
oXYnary is offline   Reply With Quote
Old 10-22-2010, 12:53 PM   #13
Tech Elite
 
corallyman's Avatar
 
Join Date: Feb 2002
Location: Edmonds, Wash
Posts: 4,564
Trader Rating: 99 (100%+)
Default

Quote:
Originally Posted by oXYnary View Post
+1

Any LRP reps on here?
-1 to your +1
__________________
Team ORCA / ORCA USA / Pro Spec
Serpent America / Team Serpent S411 ERYX / On Point Racing OP12C, S120 / Xceed Products
Hangar 30 / Seattle RC Racers
Fasttrax Racing Series / NORA On Road Series

Last edited by corallyman; 10-22-2010 at 03:49 PM.
corallyman is offline   Reply With Quote
Old 10-22-2010, 01:58 PM   #14
Tech Adept
 
Dread Pirate's Avatar
 
Join Date: Jun 2010
Location: OC/RC Raceway
Posts: 248
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by Apex View Post
Did you try max timing on the motor and playing around with the boost?
Yes.
I am running a 17.5 Ballistic, it ships marked at 30 degrees. I ran test at 20, 30, and 40 degrees when the rollout was from 70mm to 104mm; in those ranges 40 timing was always better (which makes sense when no timing is kicking in). When I dropped it to 50 and 45 rollout I only ran it at the 30 mark sense I was afraid to over time.
__________________
"We face each other as God intended. Sportsman-like. No tricks, skill against skill alone." -Fezzik
Dread Pirate is offline   Reply With Quote
Old 10-22-2010, 02:04 PM   #15
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,542
Trader Rating: 34 (100%+)
Default SXXSS V1.5

I have an SXXSS that was updated with new firmware that has been available since the iic, For arguments sake let's call it v1.5

It can be updated via usb once the new software is release from LRP. or so I'm told.

Raced 1/12th scale last sun with this setup: LRP X12 13.5 1S rotor, (4dot timing) at a 47mm roll. 0-7-9-0
It was a Rocket !

If I were to try it with an LRP X12 17.5 the roll would most likely be around 50+ to start with.

The SXXSS does require more rpm to make use-able power, for instance, the Tekin RS I ran with an X12 17.5 rolled out at around 77mm, also at -10deg, or 4dot timing.
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX 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 06:33 AM.


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