Mugen MBX7R Eco thread!
#1291
Maiden voyage. Tight indoor clay track. Car is lazy on 180 degree turns. Rear was hooked too much and pushed front when throttle picked up. I shortened wheelbase and moved rear camber link from outside on hub to middle. Also switched to bottom holes on rear hubs. Car was a little better. Next run I moved rear camber link to inside on hub and raised one hole on tower. Rear finally starting to rotate a little. Still need more off power turn in on the 180 degree turns. Car is 775 in diffs and stock springs and Pistons with 37.5/35 . Any suggestions ? Was planning on going to 5 in front diff. Possibly 3 in rear.
#1292
#1293
First race. Long day. With a hour between rounds so plenty time for setup changes. Shock pkg is 1.3 5 holes, black 9.0/10.0 springs and 550/450 fluids. Car landed and settled much better than stock setup. Still bad push on tight 180 turns. Had to crawl thru those and a s turn. First changes were to upper arm pills. Was up on tower and middle on rear. I changed to middle on tower and up on rear and bumped rear shock fluid to 500. Car was slightly better.
Next change was moving to front of Ackerman. A little better. More aggressive for sure.
Finally the change I should of done earlier, was dropping from 7 to 5 in front diff, and dropping ride height to 24/27. These changes finally got rid of push and made car turn in off power. Put in best qualifier. Qual points placed me 4th in b main. Got good start and lead
For a few laps. Got tangled in 10 pack rhythm section with lappers. Came out of that mess fifth. Battled back for bump spot. Over all happy with car and how it reacts to setup changes. suggestions and setup help is welcomed.
Next change was moving to front of Ackerman. A little better. More aggressive for sure.
Finally the change I should of done earlier, was dropping from 7 to 5 in front diff, and dropping ride height to 24/27. These changes finally got rid of push and made car turn in off power. Put in best qualifier. Qual points placed me 4th in b main. Got good start and lead
For a few laps. Got tangled in 10 pack rhythm section with lappers. Came out of that mess fifth. Battled back for bump spot. Over all happy with car and how it reacts to setup changes. suggestions and setup help is welcomed.
#1295
Tech Addict
iTrader: (1)
First race. Long day. With a hour between rounds so plenty time for setup changes. Shock pkg is 1.3 5 holes, black 9.0/10.0 springs and 550/450 fluids. Car landed and settled much better than stock setup. Still bad push on tight 180 turns. Had to crawl thru those and a s turn. First changes were to upper arm pills. Was up on tower and middle on rear. I changed to middle on tower and up on rear and bumped rear shock fluid to 500. Car was slightly better.
Next change was moving to front of Ackerman. A little better. More aggressive for sure.
Finally the change I should of done earlier, was dropping from 7 to 5 in front diff, and dropping ride height to 24/27. These changes finally got rid of push and made car turn in off power. Put in best qualifier. Qual points placed me 4th in b main. Got good start and lead
For a few laps. Got tangled in 10 pack rhythm section with lappers. Came out of that mess fifth. Battled back for bump spot. Over all happy with car and how it reacts to setup changes. suggestions and setup help is welcomed.
Next change was moving to front of Ackerman. A little better. More aggressive for sure.
Finally the change I should of done earlier, was dropping from 7 to 5 in front diff, and dropping ride height to 24/27. These changes finally got rid of push and made car turn in off power. Put in best qualifier. Qual points placed me 4th in b main. Got good start and lead
For a few laps. Got tangled in 10 pack rhythm section with lappers. Came out of that mess fifth. Battled back for bump spot. Over all happy with car and how it reacts to setup changes. suggestions and setup help is welcomed.
#1297
had my first serious bashing session with 3x 4s lipos
just a large jump and a landing in soft dirt on my small oval track
I did land awfully dozens of times on the hard packed dirt side and the mbx7r eco hold pretty well. but it always hold on better when it's brand new.
I managed to breack both 4mm screws holding the steering post underneath. quite strange... I think mugen's steel screws are a bit too hard and breaks instead of bending a bit...
anyways I had a great time and it flew nicely high !
just a large jump and a landing in soft dirt on my small oval track
I did land awfully dozens of times on the hard packed dirt side and the mbx7r eco hold pretty well. but it always hold on better when it's brand new.
I managed to breack both 4mm screws holding the steering post underneath. quite strange... I think mugen's steel screws are a bit too hard and breaks instead of bending a bit...
anyways I had a great time and it flew nicely high !
#1298
Tech Addict
iTrader: (1)
had my first serious bashing session with 3x 4s lipos
just a large jump and a landing in soft dirt on my small oval track
I did land awfully dozens of times on the hard packed dirt side and the mbx7r eco hold pretty well. but it always hold on better when it's brand new.
I managed to breack both 4mm screws holding the steering post underneath. quite strange... I think mugen's steel screws are a bit too hard and breaks instead of bending a bit...
anyways I had a great time and it flew nicely high !
just a large jump and a landing in soft dirt on my small oval track
I did land awfully dozens of times on the hard packed dirt side and the mbx7r eco hold pretty well. but it always hold on better when it's brand new.
I managed to breack both 4mm screws holding the steering post underneath. quite strange... I think mugen's steel screws are a bit too hard and breaks instead of bending a bit...
anyways I had a great time and it flew nicely high !
But I have snapped at chassis in half.
http://www.rctech.net/forum/electric...buggy-676.html
#1299
HAVING FUN ! I've crashed a lot over the years and never broke a 4mm screw. That must of been one heck of a good time.
But I have snapped at chassis in half.
http://www.rctech.net/forum/electric...buggy-676.html
But I have snapped at chassis in half.
http://www.rctech.net/forum/electric...buggy-676.html
I also broke the Upper steering deck, that's weird ! i decided to built a aluminium copy of it. I noticed that the steering plate rubs on the hinge holder so I mounted it on the upper side of the deck ( i will post a pic)
well, the car is rebuilt so it's time to make it fly again !!
#1301
Tech Addict
iTrader: (1)
1/10th a weaker IMO, what do you think ?
I also broke the Upper steering deck, that's weird ! i decided to built a aluminium copy of it. I noticed that the steering plate rubs on the hinge holder so I mounted it on the upper side of the deck ( i will post a pic)
well, the car is rebuilt so it's time to make it fly again !!
I also broke the Upper steering deck, that's weird ! i decided to built a aluminium copy of it. I noticed that the steering plate rubs on the hinge holder so I mounted it on the upper side of the deck ( i will post a pic)
well, the car is rebuilt so it's time to make it fly again !!
#1302
i have no vid yet but will work on it. I would like to show a 180° because i have never seen it before on the internet ( but the tekno advertising with Austin blair shows a nice 360° ! )
this is the upper deck I build because the plastic one broke :
and my mbx7r eco broken arm : that didn't take long... it landed really badly right on the arm, lightly sideways. no 1/8 could have survived this ! I checked the eb48 arms and mugen made theirs thicker !
i will repair it and modify it with my little steel parts...
Learning to fly takes its toll ! this is my new launching ramp, nicely made of steel, plywood and carpet.
the old dirt one became too bumpy
this is the upper deck I build because the plastic one broke :
and my mbx7r eco broken arm : that didn't take long... it landed really badly right on the arm, lightly sideways. no 1/8 could have survived this ! I checked the eb48 arms and mugen made theirs thicker !
i will repair it and modify it with my little steel parts...
Learning to fly takes its toll ! this is my new launching ramp, nicely made of steel, plywood and carpet.
the old dirt one became too bumpy
Last edited by werner sline; 11-14-2015 at 04:41 PM.
#1303
I've got a couple issues that I'd like to get some help. First one is I'm running indoor on a med to tight clay track, med to loose traction. I seem to spin out at entry and middle of turn off throttle.
The other issue is my front camber on the left side is about 3 degrees with a washer on the top and bottom arm. The right arm is more like 5 degrees with the same amount of washers??? I had to add a washer to the top arm to get the same camber. Everything looks straight and moves freely.
I've attached my set-up sheet.
The other issue is my front camber on the left side is about 3 degrees with a washer on the top and bottom arm. The right arm is more like 5 degrees with the same amount of washers??? I had to add a washer to the top arm to get the same camber. Everything looks straight and moves freely.
I've attached my set-up sheet.
#1304
Tech Addict
iTrader: (1)
i have no vid yet but will work on it. I would like to show a 180° because i have never seen it before on the internet ( but the tekno advertising with Austin blair shows a nice 360° ! )
this is the upper deck I build because the plastic one broke :
and my mbx7r eco broken arm : that didn't take long... it landed really badly right on the arm, lightly sideways. no 1/8 could have survived this ! I checked the eb48 arms and mugen made theirs thicker !
i will repair it and modify it with my little steel parts...
Learning to fly takes its toll ! this is my new launching ramp, nicely made of steel, plywood and carpet.
the old dirt one became too bumpy
this is the upper deck I build because the plastic one broke :
and my mbx7r eco broken arm : that didn't take long... it landed really badly right on the arm, lightly sideways. no 1/8 could have survived this ! I checked the eb48 arms and mugen made theirs thicker !
i will repair it and modify it with my little steel parts...
Learning to fly takes its toll ! this is my new launching ramp, nicely made of steel, plywood and carpet.
the old dirt one became too bumpy
Nice jump and that front plate kinda odd with holder on top, I'm pretty sure it's upside down. Look at your manual!
Last edited by nitro2be; 11-15-2015 at 11:34 AM.
#1305
Tech Addict
iTrader: (1)
I've got a couple issues that I'd like to get some help. First one is I'm running indoor on a med to tight clay track, med to loose traction. I seem to spin out at entry and middle of turn off throttle.
The other issue is my front camber on the left side is about 3 degrees with a washer on the top and bottom arm. The right arm is more like 5 degrees with the same amount of washers??? I had to add a washer to the top arm to get the same camber. Everything looks straight and moves freely.
I've attached my set-up sheet.
The other issue is my front camber on the left side is about 3 degrees with a washer on the top and bottom arm. The right arm is more like 5 degrees with the same amount of washers??? I had to add a washer to the top arm to get the same camber. Everything looks straight and moves freely.
I've attached my set-up sheet.
Last edited by nitro2be; 11-15-2015 at 01:17 PM.