R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 04-14-2007, 04:59 PM   #1051
Tech Elite
 
HarKonnenD's Avatar
 
Join Date: Aug 2001
Location: Connecticut
Posts: 3,024
Trader Rating: 23 (100%+)
Send a message via AIM to HarKonnenD
Default

I wasn't much into setups n stuff when I was learning about the MRX4 swapping rear blocks n such, but I seen many people using the 4.5 in the rear and that is what I went with along with the kit setup. Personally I like the setup. My local track is permanent, and the other one was made: cleaned up lot, layed down asphalt and really smooth. Traction is pretty good on both as I never had an issue with that.
__________________
Trying to live every day like its the last....
HarKonnenD is offline   Reply With Quote
Old 04-14-2007, 08:00 PM   #1052
Tech Elite
 
Join Date: Sep 2002
Location: Northern VA
Posts: 3,538
Trader Rating: 4 (100%+)
Send a message via AIM to munrath
Default

Quote:
Originally Posted by 3,2,1,..GO!
Ok thanks Sohlman,,,you think run in on the track will do the trick? You not in Fl. racing with Pooh?? O yea also how are you guys attaching the engine (21 Ro1A Ninja) to the engine blocks? No matter what i do I cant get the Hex driver straight down on the bolt,,it's always at a angle because of the hex driver hitting the side of the engine. The last thing i want to do is stripe these engine bolts. Any tips,,tricks?? Why dont the just make a engine with grooves for the hex driver?

lift the engine up some and then tighten the screws. If the engine is sitting on the blocks themselves then you will have the problem you mentioned. Simply lift the engine off the blocks and start each screw and then you should have no problem.

Mark
__________________
Tekno RC (RTM) / RadioPost / Tekin / Pro-Match Racing / AKA / PT Racing Oils/Diff Lube

Races for 2015:
PNB, AMS, E-Nats Warm-up, E-Nats, LCRC North East Challenge, RAC, LCRC Halloween, Badlands, ROAR Region 2 Series, and Local Club Racing
munrath is offline   Reply With Quote
Old 04-15-2007, 07:03 AM   #1053
Tech Elite
 
HarKonnenD's Avatar
 
Join Date: Aug 2001
Location: Connecticut
Posts: 3,024
Trader Rating: 23 (100%+)
Send a message via AIM to HarKonnenD
Default

Man it just had to rain today. I really wished to get out there and run my onroads. Ah well...gives me time to clean down the MRX4 and relube everything.
__________________
Trying to live every day like its the last....
HarKonnenD is offline   Reply With Quote
Old 04-15-2007, 10:11 AM   #1054
Tech Adept
 
dfilo123's Avatar
R/C Tech Elite Subscriber
 
Join Date: Apr 2007
Posts: 101
Default Reciver Cover

I Need To Cover The Reciver And Was Wondering What To Use.
dfilo123 is offline   Reply With Quote
Old 04-15-2007, 11:42 AM   #1055
Tech Champion
 
asw7576's Avatar
 
Join Date: Sep 2004
Posts: 5,792
Default

Quote:
Originally Posted by THE DOCTOR
What rear block is everyone using? 4.5 or the 5.5????

If you are using the 4.5 do you run on a track with lots of traction?

The guys using the 5.5, are you running on parking lot tracks?

Anyone running something weird like the 4.5 front block and the rear 5.5?
It really depends on your driving style, your race track and what you after.

4.5 = Lower Roll Center, More Body Roll, Better on less grip track, Slower cornering speed at grippy track.

5.5 = Neutral <--- I'm using this.

6.5 = Higher Roll Center, Less Body Roll, Better on smooth track, Faster cornering speed at grippy track.



When you mix front and rear suspension mount :

4.5 front and 5.5 rear = Anti Squat

5.5 front and 4.5 rear = Pro Squat, helpful when you feel too much understeering at mid corner off throttle. ( Or your car turns wide radius on throttle while doing mid cornering ). --- I fixed my MTX3 understeering problem with high roll center & pro squat after 3 weeks "brain dead" to find more steering at mid cornering.

See attachment for complete reading.
Attached Thumbnails
Mugen MRX-4R-roll-center.jpg  
__________________
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus

Last edited by asw7576; 04-15-2007 at 11:56 AM.
asw7576 is offline   Reply With Quote
Old 04-15-2007, 12:06 PM   #1056
Tech Master
 
cdelong's Avatar
 
Join Date: Jul 2004
Location: The Sunshine State
Posts: 1,805
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by asw7576
It really depends on your driving style, your race track and what you after.

4.5 = Lower Roll Center, More Body Roll, Better on less grip track, Slower cornering speed at grippy track.

5.5 = Neutral <--- I'm using this.

6.5 = Higher Roll Center, Less Body Roll, Better on smooth track, Faster cornering speed at grippy track.



When you mix front and rear suspension mount :

4.5 front and 5.5 rear = Anti Squat

5.5 front and 4.5 rear = Pro Squat, helpful when you feel too much understeering at mid corner off throttle. ( Or your car turns wide radius on throttle while doing mid cornering ). --- I fixed my MTX3 understeering problem with high roll center & pro squat after 3 weeks "brain dead" to find more steering at mid cornering.

See attachment for complete reading.
I'd love to see you run a 6.5mm block at Toledo on a good day. You'd be doing cartwheels end over end at every turn

If there's a LOT of bite you need body roll (4.5mm blocks) to stop you from traction rolling, so to say what block you need for this or that type of track doesn't always work. Most permanent facilities that are sealed and treated weekly will work great with a 4.5mm block. If traction is a touch lower you may possibly switch to a 5.5mm block, but there are other tuning options available (camber gain) to make the car work very well with the 4.5mm block.

I'm sure most everyone here will agree... the 4.5mm block is the most widely used set-up
__________________
KYOSHO EVOLVA
35PLUS21
FUTABA 3PKS/KO PROPO
BYRON'S FUEL/TWISTER TIRES
cdelong is offline   Reply With Quote
Old 04-15-2007, 12:20 PM   #1057
GK
Suspended
 
Join Date: May 2005
Posts: 332
Default

Quote:
Originally Posted by cdelong
...If there's a LOT of bite you need body roll (4.5mm blocks) to stop you from traction rolling...
That doesn't make much sense, I always thought you want less roll in high bite, and rotate more when traction is low...

Last edited by GK; 04-15-2007 at 03:40 PM.
GK is offline   Reply With Quote
Old 04-15-2007, 12:26 PM   #1058
Tech Master
 
cdelong's Avatar
 
Join Date: Jul 2004
Location: The Sunshine State
Posts: 1,805
Trader Rating: 12 (100%+)
Default

if you have no body roll and lots of traction your car will just flip in the corners. you need the roll to absorb that rolling momentum in the corners and STOP you from traction rolling.

sorry if you can't understand my explanation.... maybe someone else can explain it in terms easier for you to understand.
__________________
KYOSHO EVOLVA
35PLUS21
FUTABA 3PKS/KO PROPO
BYRON'S FUEL/TWISTER TIRES
cdelong is offline   Reply With Quote
Old 04-15-2007, 12:32 PM   #1059
Tech Champion
 
asw7576's Avatar
 
Join Date: Sep 2004
Posts: 5,792
Default

4.5, 5.5, 6.5 are just fine adjustments to suit your track or what you feel confidence driving it.

I can't say 4.5 is better than 6.5 or vice versa. I don't know..... it's everybody speed secret / recipe. All I can say 4.5 means Lower Roll Center and induce more body roll, while 6.5 is the opposite.
__________________
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus
asw7576 is offline   Reply With Quote
Old 04-15-2007, 12:39 PM   #1060
GK
Suspended
 
Join Date: May 2005
Posts: 332
Default

Quote:
Originally Posted by cdelong
if you have no body roll and lots of traction your car will just flip in the corners. you need the roll to absorb that rolling momentum in the corners and STOP you from traction rolling.

sorry if you can't understand my explanation.... maybe someone else can explain it in terms easier for you to understand.
I understand what you're trying to say, I just disagree with you and think the opposite is true, at least for rear suspension where the roll blocks are used. Read Serpent setup book, page 18: http://www.serpent.com/file.php?FileID=4082

Last edited by GK; 04-15-2007 at 12:51 PM.
GK is offline   Reply With Quote
Old 04-15-2007, 12:54 PM   #1061
Tech Elite
 
Corse-R's Avatar
 
Join Date: Aug 2001
Location: Madrid (Spain)
Posts: 2,121
Default

Quote:
Originally Posted by GK
I understand what you're trying to say, I just disagree with you and think opposite is true, i.e. high bite track = higher roll center, low bite = lower roll center. When the car rolls more in high bite condition, outer wheels want to dig in which will result in traction rolling.
Think that gives you grip is the downforce created by the body and transferred to the wheels via the body support. This downforce is applied directly to the wheels (in the case of the rear track), not on the suspension nor springs, so it works in a slightly different form.

If you don't want to hook-up the wheels on a corner is a matter of other adjustments, the roll center makes the chassis twist and turn by the centrifugual forces.

Also, cornering on those cars is done raising the inner rear wheel and sliding the whole track, so the chassis needs to roll just to make it possible to slide the wheels.
__________________
Cheers,
Corse-R
---
[quote=MugenDrew;2684554]BATTERIES are for FLASH LIGHTS, gasoline is for cleanin parts, alcohol is for me to drink and well NITRO...everybody know thats for racing.[/quote] :D:D:D
Corse-R is offline   Reply With Quote
Old 04-15-2007, 05:22 PM   #1062
Tech Adept
 
dfilo123's Avatar
R/C Tech Elite Subscriber
 
Join Date: Apr 2007
Posts: 101
Default Reciver Cover

Hello Im New To The Forum And need Some Help With The Mrx-4r I Need to Cover The Reciver What Has Everybody else used
dfilo123 is offline   Reply With Quote
Old 04-15-2007, 08:34 PM   #1063
Tech Champion
 
asw7576's Avatar
 
Join Date: Sep 2004
Posts: 5,792
Default

Quote:
Originally Posted by dfilo123
Hello Im New To The Forum And need Some Help With The Mrx-4r I Need to Cover The Reciver What Has Everybody else used
I cover my receiver with stick pack battery shrink wrap.
__________________
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus
asw7576 is offline   Reply With Quote
Old 04-15-2007, 08:38 PM   #1064
Tech Master
 
cdelong's Avatar
 
Join Date: Jul 2004
Location: The Sunshine State
Posts: 1,805
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by dfilo123
Hello Im New To The Forum And need Some Help With The Mrx-4r I Need to Cover The Reciver What Has Everybody else used
Art Carbonnel showed me what he uses..... the inner tube from a bicycle tire. Get a 26" x 1.75" tube at WalMart for $3 and you'll have enough tubing to cut 100 receiver covers
__________________
KYOSHO EVOLVA
35PLUS21
FUTABA 3PKS/KO PROPO
BYRON'S FUEL/TWISTER TIRES
cdelong is offline   Reply With Quote
Old 04-15-2007, 09:02 PM   #1065
moy
Tech Master
 
moy's Avatar
 
Join Date: Nov 2006
Location: 818's
Posts: 1,043
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by dfilo123
Hello Im New To The Forum And need Some Help With The Mrx-4r I Need to Cover The Reciver What Has Everybody else used
you can use the cover from mtx3 or 4,or hpi's recievers box,or those party ballons.
moy is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
MUGEN MBX5R/MUGEN MBX5T PROSPEC/TRAXXAS RACE REVO Jason Halvorson R/C Items: For Sale/Trade 14 01-12-2008 10:32 AM
Mugen 5T Chassis, Mugen 46 Tooth Pinion, Associated Ride Height Gauge bretzkej R/C Items: For Sale/Trade 1 08-19-2007 06:31 PM
USA's Most Wanted FOR SALE Mugen MBX5R,Losi 8 comp, and Mugen MBX5T Prospec Truggy nobike R/C Items: For Sale/Trade 69 04-28-2007 07:45 PM
Another MTX3 prospec w lots of parts and an optional Mugen X12 w Mugen pipe Scott Fisher R/C Items: For Sale/Trade 11 11-21-2005 05:45 PM
drake xxx nt and mugen mst-1+extras......Looking for a kanai 2 or maybe mugen buggy [email protected] R/C Items: For Sale/Trade 5 06-30-2003 09:31 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 12:20 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