R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-21-2012, 10:57 AM   #2911
Tech Fanatic
 
Martin Crisp's Avatar
 
Join Date: Oct 2003
Location: Toronto Canada
Posts: 822
Default

Quote:
Originally Posted by rdlkgliders View Post
When I say loose off I am having to really wait for the car to square up out of the corner to add power, I know this is somewhat normal but it is excessive. I am falling behind there especially to the Xrays. I use the same tires as the other guys we are all usually using 28 this time of year. I clean with buggy grip 2 and treat with tire tweak 2000.
I know the balance is there I just need to find it.
my setup basics have been
2mm front spacing
5mm rear spacing
1.25 front camber
2.25 rear camber
5 front downstop
3 rear downstop
both fr and rr shocks 4th from bottom of tower.
by end of day I have increased front downstop stoop up front shocks
and laid down rear.
xray shocks 500 cst front 425 cst rear
orange springs front 1.4 appx 15-16lb and teal rear slightly softer.

The adjustments help the loose rear end a little at the price of a mid corner to exit push situation
I should get the serpent shocks this week from zaraz and I will have yellow orange white black and gray springs coming.
Thanks
Don
You might want to try just 2 degrees rear camber, as sometimes too much rear camber can result in a loose car if you have gone past the optimal camber.

Also, try running the same droop front and rear, set at 5. I don't measure my droop that way, but I believe a 5 will give you a good amount of droop allowing you to transfer weight to the rear tires under acceleration and help you get on power sooner. With a 3 setting, you likely have too much rear droop making the car loose off power.

I am not familiar with the teal spring. If it is a softer than the yellow spring then it is possible your rear spring rate is too soft, enabling the car to roll too much in the rear, causing the car to be loose mid and corner exit. I would stick with the yellow springs in the rear if you are using the orange up front. You should also try a white rear and grey front combination and see if that works for you.

Laying the rear shocks beyond the 4th hole will cause the rear to roll more and will likely cause the car to be loose mid and corner exit, so I would stay with the 4th hole in the rear.

As for roll center, I would not use anti-squat, as that will cause you to be loose throughout the corner. Keep the spacers under the hinge pin blocks as the same. I do like the 0.5mm spacer under all four hinge pin blocks. I am not sure what you are using for spacers on the inboard upper links where they attach tot he bulk heads, but I would think a 5mm inboard front would be a good start for the front. In the rear I would try 3mm outboard and 3mm inboard. If you want more rear grip then reduce the inboard from 3mm to 2mm.

As for rear toe. try 3.0 and 3.5 and see what you like better after you have tried the changes above. I would not go below 3.0.

Based on the traction compounds you are using I assume you are running on asphalt? With tire tweak, the trick is to put very little on the tire otherwise the tire will always feel slimy. Make sure you clean the tire off about 3 to 5 mins before the run so that it is nice and tacky before the run.

When you clean with buggy grip 2, make sure you wait at least 10 mins before applying the tweek. It is also important to let the tweek sit on the tires for at least 10 mins.

I hope this helps.
__________________
Martin Crisp
SetupWorkbench.com | Power-Story.com | LearnSetup.com
Martin Crisp is offline   Reply With Quote
Old 02-21-2012, 07:45 PM   #2912
Tech Regular
 
rdlkgliders's Avatar
 
Join Date: Feb 2006
Location: So. Cal High Desert Hobbies
Posts: 458
Trader Rating: 21 (96%+)
Default

Thanks Martin,
For the info and the app.
__________________
Serpent, KO Propo, Viper, Savox, ProTek
Team Waldorf Racing

Your not lapping me, you just caught up to me again!!!
rdlkgliders is offline   Reply With Quote
Old 02-22-2012, 08:55 AM   #2913
Tech Master
 
BAD007SUZUKI's Avatar
 
Join Date: Sep 2009
Location: NILES, MI
Posts: 1,008
Trader Rating: 93 (100%+)
Send a message via Skype™ to BAD007SUZUKI
Default DIFF

has anyone had to replace the large rubber oring for the diff case yet? i need one and am trying to find a comparable part. i dont need the revision gear set but it seems thats the only way to get it.
__________________
R/C Fun Park 12990 SR23 Granger, Indiana 46530
BAD007SUZUKI is offline   Reply With Quote
Old 02-22-2012, 11:12 AM   #2914
Tech Addict
 
JamesReilly's Avatar
 
Join Date: Aug 2008
Location: My Lab
Posts: 588
Trader Rating: 54 (100%+)
Default

Quote:
Originally Posted by BAD007SUZUKI View Post
has anyone had to replace the large rubber oring for the diff case yet? i need one and am trying to find a comparable part. i dont need the revision gear set but it seems thats the only way to get it.
Use can use the ones that fit a 720 or 733 which is
Serpent 22.5x1mm Differential Case O-Ring Set (10)
[SER804200]

If you plan on coming to the Grand Slam Race at MSI this weekend I have some extra orings I can hook u up with.

LMK,
James
__________________
Tekno RC, Discount RC Store, REDS Racing USA,Reilly Paint (reillypaint@gmail.com)
"I'm not normal, just more normal then Finnish guys" - Ilias
JamesReilly is offline   Reply With Quote
Old 02-22-2012, 11:32 AM   #2915
Tech Master
 
BAD007SUZUKI's Avatar
 
Join Date: Sep 2009
Location: NILES, MI
Posts: 1,008
Trader Rating: 93 (100%+)
Send a message via Skype™ to BAD007SUZUKI
Default thx

i dont think i can make that race, buy i appreciate the info. if something changes, i'll let you know. what day is the race?
also!!!! thanks dangerous toys for the hook up!!!!!!!!


Quote:
Originally Posted by JamesReilly View Post
Use can use the ones that fit a 720 or 733 which is
Serpent 22.5x1mm Differential Case O-Ring Set (10)
[SER804200]

If you plan on coming to the Grand Slam Race at MSI this weekend I have some extra orings I can hook u up with.

LMK,
James
__________________
R/C Fun Park 12990 SR23 Granger, Indiana 46530
BAD007SUZUKI is offline   Reply With Quote
Old 02-22-2012, 08:03 PM   #2916
Tech Initiate
 
Join Date: Apr 2004
Location: Indianapolis, IN
Posts: 48
Default Belt rub

Completed my 411 tonight and noticed the front belt rubs the chassis at the back of the front diff cut out. Is this normal with the kit set up?
FastHound is offline   Reply With Quote
Old 02-22-2012, 11:03 PM   #2917
Tech Apprentice
 
RasCalDK's Avatar
 
Join Date: Sep 2011
Posts: 50
Default

I have never heard of that problem before.. Are you sure, you have placed the eccentric bearing holders right?
They should be placed in center position.
__________________
Rasmus T. Callesen - Denmark

Serpent S411 - Serpent.com/2-speed.de
Hobbywing Xerun V3 and Thunder Power Z3R motors - ToniSport
RasCalDK is offline   Reply With Quote
Old 02-23-2012, 12:24 AM   #2918
Tech Elite
 
mattwoodcraft's Avatar
 
Join Date: Jul 2004
Location: perth / australia
Posts: 2,747
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by FastHound View Post
Completed my 411 tonight and noticed the front belt rubs the chassis at the back of the front diff cut out. Is this normal with the kit set up?
on my car it was also running very close to the the cut outs front and rear and also very close to the center pulley on the rear of the top deck, all i done after i was made aware of this was file the chassis cut outs to a 45 degree angle this stopped the belt rubbing and also stopped wearing the top cover of the belts also
mattwoodcraft is offline   Reply With Quote
Old 02-23-2012, 06:40 AM   #2919
Tech Initiate
 
Join Date: Apr 2004
Location: Indianapolis, IN
Posts: 48
Default

Quote:
Originally Posted by RasCalDK View Post
I have never heard of that problem before.. Are you sure, you have placed the eccentric bearing holders right?
They should be placed in center position.
I am nearly positive they are correct.
FastHound is offline   Reply With Quote
Old 02-23-2012, 08:42 AM   #2920
Tech Adept
 
gregsbox's Avatar
 
Join Date: Mar 2010
Location: Manila, Philippines
Posts: 133
Default


VOTE HERE
__________________
[YOKOMO] [XRAY] [SANWA] [TEKIN] [ALIGN] [JR]

www.thisisrc.com
www.thisisbluerain.com
gregsbox is offline   Reply With Quote
Old 02-23-2012, 09:01 AM   #2921
Tech Apprentice
 
RasCalDK's Avatar
 
Join Date: Sep 2011
Posts: 50
Default

Then, depending on the amount, i'd also just file it down.
__________________
Rasmus T. Callesen - Denmark

Serpent S411 - Serpent.com/2-speed.de
Hobbywing Xerun V3 and Thunder Power Z3R motors - ToniSport
RasCalDK is offline   Reply With Quote
Old 02-23-2012, 11:13 AM   #2922
Tech Master
 
BAD007SUZUKI's Avatar
 
Join Date: Sep 2009
Location: NILES, MI
Posts: 1,008
Trader Rating: 93 (100%+)
Send a message via Skype™ to BAD007SUZUKI
Default IM ON A BOAT!

CAN ANY OF YOU ROCKET SCIENTISTS PLEASE TELL ME WHAT SHIMMING THE TOP/BOTTOM OF THE SHOCK DOES FOR THE CAR? I'VE SHIMMED THE LOWER BY 1MM JUST TO LINE THE SHOCK UP BETTER, BUT I AM GETTING MIXED THOUGHTS/INFO ABOUT WHAT IT DOES. (IF ANYTHING). CLOSEST I CAN MUSTER UP IS IT HAS TO DO WITH WEIGHT TRANSFER.

THX
__________________
R/C Fun Park 12990 SR23 Granger, Indiana 46530
BAD007SUZUKI is offline   Reply With Quote
Old 02-23-2012, 11:17 AM   #2923
Tech Champion
 
RC MARKET's Avatar
 
Join Date: Feb 2007
Location: HK
Posts: 6,127
Trader Rating: 12 (100%+)
Default

Serpent Alum. Rear Upright
Attached Thumbnails
Serpent S411-ser-401421.jpg  
RC MARKET is offline   Reply With Quote
Old 02-23-2012, 12:17 PM   #2924
Tech Rookie
 
Join Date: Jan 2012
Posts: 6
Default

Quote:
Originally Posted by BAD007SUZUKI View Post
CAN ANY OF YOU ROCKET SCIENTISTS PLEASE TELL ME WHAT SHIMMING THE TOP/BOTTOM OF THE SHOCK DOES FOR THE CAR? I'VE SHIMMED THE LOWER BY 1MM JUST TO LINE THE SHOCK UP BETTER, BUT I AM GETTING MIXED THOUGHTS/INFO ABOUT WHAT IT DOES. (IF ANYTHING). CLOSEST I CAN MUSTER UP IS IT HAS TO DO WITH WEIGHT TRANSFER.

THX
Sounds like a question for Mr Crisp.
ZORO1 is offline   Reply With Quote
Old 02-23-2012, 03:31 PM   #2925
Tech Elite
 
Johnny Wishbone's Avatar
 
Join Date: Feb 2006
Posts: 3,285
Trader Rating: 6 (100%+)
Default

Quote:
Originally Posted by BAD007SUZUKI View Post
CAN ANY OF YOU ROCKET SCIENTISTS PLEASE TELL ME WHAT SHIMMING THE TOP/BOTTOM OF THE SHOCK DOES FOR THE CAR? I'VE SHIMMED THE LOWER BY 1MM JUST TO LINE THE SHOCK UP BETTER, BUT I AM GETTING MIXED THOUGHTS/INFO ABOUT WHAT IT DOES. (IF ANYTHING). CLOSEST I CAN MUSTER UP IS IT HAS TO DO WITH WEIGHT TRANSFER.

THX
You have to remember that the shock angle works on two plains, and really forward/back (shock spacing) is similar to moving your shock up and down on the lower arm and upper shock mount. The only difference is that shock spacing helps forward bite. The only thing to watch out for is any more than 2mm of spacing tends to negate any tuning advantage. The spacing will tend to make the car more stable and easier to drive, move the front shocks forward. Stability increases mainly in chicanes. The same applies to the rear shocks.

Note that the car will have less steering into corners.
__________________
Gary Lanzer
Team VBC HK
Team R1WURKS
Johnny Wishbone is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Batu Kawan Rc Track Tongga Malaysian R/C Racers 10418 06-28-2016 11:34 PM
DRCW Raceway Chesapeake, VA // Asphalt / Indoor Off Road / Outdoor Off Road stiltskin Racing Forum 10278 11-14-2014 07:39 AM



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 12:51 PM.


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

SEO by vBSEO 3.5.0