288LikesTamiya mini cooper
08-18-2009, 02:03 AM
#9856
I've been racing my M05 on carpet and I've only noticed one problem. Under braking the rear end of the car will swing out. It's the only problem I have with the car. I'm using the stock setup. Is anybody else experiencing this problem? and any remedies? I've got my own ideas of how to cure this problem, but I want additional input to see if I'm on the right track.
Thanks
Thanks
Firstly I've got a few questions:-
1. Is your car weighted up?
2. What tyre combo front\rear are you using?
3. If your car is weighted up, where is it placed?
Ok after studying some of the threads on what guys have been doing on their MO5 this is how my car is set up and I will share a bit on its performance.
Firstly I run a tight TAO5 ball diff with lead placed behind the front bumper. If you can manage epoxy resin mixed with leadshot in the cavities behind the bumper even better.
One of my Lipo’s has lead on it and depending which one I use with body on the AUW of my MO5 can be between 1350grams to 1385grams.
I use blue springs front with oil weight 50 and yellow springs rear with oil weight 40 built as per Jilles Groskamp and here is the link
The tyres I use are the Tamiya radial S grip front & M grip rear.
Short wheel base and 40% exponential on steering
So after some meticulous building, my MO5 straight out of the box intially and onto carpet performed like this
Ok just joking, it drove like it was pushing into the corners, like a lot of understeering which made me feel a bit uncomfortable. After about 10 maiden laps I pitted. I lowered the ride height in the front about 2mm off the deck approximately and raised in the rear 3 to 4mm. You might want to experiment here but just remember low at the front higher in the rear. You know 'suck it and see' type experiment
Well the verdict from me is that this thing is PLANTED and I couldn't believe the transformation, no more understeer. It felt great
and my lap times where great too. Comparing lap times to my MO3 well, would you believe we started a new racing series going in reverse direction out at the regular indoor track I race on an was hard to get a good comparison. It was quick and even going in reverse I belive my overall lap times will beat the MO3 hands down with a couple more meetings.
How will it go on a conventional outdoor track with this set up you might ask?
Good question, maybe someone can give me some feedback because I race midweek on carpet only.........period.
Wow that was almost like a mni review on the MO5, and a bit long winded but thats how it went for me
..........thumbs upCheers
John
08-18-2009, 02:31 AM
#9857
Some further information regarding the M05 that drivers might find of interest:
The M05 in medium mode is actually heavier than the M05 in long mode (extra plastic piece)
In my M03L the weight distribution was 60:40 F:R
In a M05M the weight distribution is 55:45 F:R
In a M05L the weight distribution is 58:42 F:R
This shows that in actual fact the medium has a bigger weight bias to the rear than the long version. Taking this further it would be reasonable to assume that the short wheel base is even worse. This to me means a bigger pendulum effect on the shorter cars
My idea would be to see if I can balance the car so that the bias is similar to the M03L. At this point it is not far wrong
Hope this gives you something to think about
The M05 in medium mode is actually heavier than the M05 in long mode (extra plastic piece)
In my M03L the weight distribution was 60:40 F:R
In a M05M the weight distribution is 55:45 F:R
In a M05L the weight distribution is 58:42 F:R
This shows that in actual fact the medium has a bigger weight bias to the rear than the long version. Taking this further it would be reasonable to assume that the short wheel base is even worse. This to me means a bigger pendulum effect on the shorter cars
My idea would be to see if I can balance the car so that the bias is similar to the M03L. At this point it is not far wrong
Hope this gives you something to think about
08-18-2009, 02:42 AM
#9858
Hi scribbler, I run on carpet too and here is the scoop on what I believe will solve you rear end swinging out
Firstly I've got a few questions:-
1. Is your car weighted up?
2. What tyre combo front\rear are you using?
3. If your car is weighted up, where is it placed?
Ok after studying some of the threads on what guys have been doing on their MO5 this is how my car is set up and I will share a bit on its performance.
Firstly I run a tight TAO5 ball diff with lead placed behind the front bumper. If you can manage epoxy resin mixed with leadshot in the cavities behind the bumper even better.
One of my Lipo’s has lead on it and depending which one I use with body on the AUW of my MO5 can be between 1350grams to 1385grams.
I use blue springs front with oil weight 50 and yellow springs rear with oil weight 40 built as per Jilles Groskamp and here is the The tyres I use are the Tamiya radial S grip front & M grip rear.
Short wheel base and 40% exponential on steering
So after some meticulous building, my MO5 straight out of the box intially and onto carpet performed like this
Ok just joking, it drove like it was pushing into the corners, like a lot of understeering which made me feel a bit uncomfortable. After about 10 maiden laps I pitted. I lowered the ride height in the front about 2mm off the deck approximately and raised in the rear 3 to 4mm. You might want to experiment here but just remember low at the front higher in the rear. You know 'suck it and see' type experiment
Well the verdict from me is that this thing is PLANTED and I couldn't believe the transformation, no more understeer. It felt great and my lap times where great too. Comparing lap times to my MO3 well, would you believe we started a new racing series going in reverse direction out at the regular indoor track I race on an was hard to get a good comparison.
It was quick and even going in reverse I belive my overall lap times will beat the MO3 hands down with a couple more meetings.
How will it go on a conventional outdoor track with this set up you might ask?
Good question, maybe someone can give me some feedback because I race midweek on carpet only.........period.
Wow that was almost like a mni review on the MO5, and a bit long winded but thats how it went for me..........thumbs up
Cheers
John
Firstly I've got a few questions:-
1. Is your car weighted up?
2. What tyre combo front\rear are you using?
3. If your car is weighted up, where is it placed?
Ok after studying some of the threads on what guys have been doing on their MO5 this is how my car is set up and I will share a bit on its performance.
Firstly I run a tight TAO5 ball diff with lead placed behind the front bumper. If you can manage epoxy resin mixed with leadshot in the cavities behind the bumper even better.
One of my Lipo’s has lead on it and depending which one I use with body on the AUW of my MO5 can be between 1350grams to 1385grams.
I use blue springs front with oil weight 50 and yellow springs rear with oil weight 40 built as per Jilles Groskamp and here is the The tyres I use are the Tamiya radial S grip front & M grip rear.
Short wheel base and 40% exponential on steering
So after some meticulous building, my MO5 straight out of the box intially and onto carpet performed like this
Ok just joking, it drove like it was pushing into the corners, like a lot of understeering which made me feel a bit uncomfortable. After about 10 maiden laps I pitted. I lowered the ride height in the front about 2mm off the deck approximately and raised in the rear 3 to 4mm. You might want to experiment here but just remember low at the front higher in the rear. You know 'suck it and see' type experiment
Well the verdict from me is that this thing is PLANTED and I couldn't believe the transformation, no more understeer. It felt great
and my lap times where great too. Comparing lap times to my MO3 well, would you believe we started a new racing series going in reverse direction out at the regular indoor track I race on an was hard to get a good comparison. It was quick and even going in reverse I belive my overall lap times will beat the MO3 hands down with a couple more meetings.
How will it go on a conventional outdoor track with this set up you might ask?
Good question, maybe someone can give me some feedback because I race midweek on carpet only.........period.
Wow that was almost like a mni review on the MO5, and a bit long winded but thats how it went for me
..........thumbs upCheers
John
08-18-2009, 03:37 AM
#9859
Tech Fanatic
iTrader: (22)
Hi scribbler, I run on carpet too and here is the scoop on what I believe will solve you rear end swinging out
Firstly I've got a few questions:-
1. Is your car weighted up?
2. What tyre combo front\rear are you using?
3. If your car is weighted up, where is it placed?
Ok after studying some of the threads on what guys have been doing on their MO5 this is how my car is set up and I will share a bit on its performance.
Firstly I run a tight TAO5 ball diff with lead placed behind the front bumper. If you can manage epoxy resin mixed with leadshot in the cavities behind the bumper even better.
One of my Lipo’s has lead on it and depending which one I use with body on the AUW of my MO5 can be between 1350grams to 1385grams.
I use blue springs front with oil weight 50 and yellow springs rear with oil weight 40 built as per Jilles Groskamp and here is the link
The tyres I use are the Tamiya radial S grip front & M grip rear.
Short wheel base and 40% exponential on steering
So after some meticulous building, my MO5 straight out of the box intially and onto carpet performed like this
Ok just joking, it drove like it was pushing into the corners, like a lot of understeering which made me feel a bit uncomfortable. After about 10 maiden laps I pitted. I lowered the ride height in the front about 2mm off the deck approximately and raised in the rear 3 to 4mm. You might want to experiment here but just remember low at the front higher in the rear. You know 'suck it and see' type experiment
Well the verdict from me is that this thing is PLANTED and I couldn't believe the transformation, no more understeer. It felt great and my lap times where great too. Comparing lap times to my MO3 well, would you believe we started a new racing series going in reverse direction out at the regular indoor track I race on an was hard to get a good comparison.
It was quick and even going in reverse I belive my overall lap times will beat the MO3 hands down with a couple more meetings.
How will it go on a conventional outdoor track with this set up you might ask?
Good question, maybe someone can give me some feedback because I race midweek on carpet only.........period.
Wow that was almost like a mni review on the MO5, and a bit long winded but thats how it went for me..........thumbs up
Cheers
John
Firstly I've got a few questions:-
1. Is your car weighted up?
2. What tyre combo front\rear are you using?
3. If your car is weighted up, where is it placed?
Ok after studying some of the threads on what guys have been doing on their MO5 this is how my car is set up and I will share a bit on its performance.
Firstly I run a tight TAO5 ball diff with lead placed behind the front bumper. If you can manage epoxy resin mixed with leadshot in the cavities behind the bumper even better.
One of my Lipo’s has lead on it and depending which one I use with body on the AUW of my MO5 can be between 1350grams to 1385grams.
I use blue springs front with oil weight 50 and yellow springs rear with oil weight 40 built as per Jilles Groskamp and here is the link
The tyres I use are the Tamiya radial S grip front & M grip rear.
Short wheel base and 40% exponential on steering
So after some meticulous building, my MO5 straight out of the box intially and onto carpet performed like this
Ok just joking, it drove like it was pushing into the corners, like a lot of understeering which made me feel a bit uncomfortable. After about 10 maiden laps I pitted. I lowered the ride height in the front about 2mm off the deck approximately and raised in the rear 3 to 4mm. You might want to experiment here but just remember low at the front higher in the rear. You know 'suck it and see' type experiment
Well the verdict from me is that this thing is PLANTED and I couldn't believe the transformation, no more understeer. It felt great
and my lap times where great too. Comparing lap times to my MO3 well, would you believe we started a new racing series going in reverse direction out at the regular indoor track I race on an was hard to get a good comparison. It was quick and even going in reverse I belive my overall lap times will beat the MO3 hands down with a couple more meetings.
How will it go on a conventional outdoor track with this set up you might ask?
Good question, maybe someone can give me some feedback because I race midweek on carpet only.........period.
Wow that was almost like a mni review on the MO5, and a bit long winded but thats how it went for me
..........thumbs upCheers
John
I run a tight ball diff ( may as well be a spool ), white fronts blue rears ride hard front 32 spice rears.
08-18-2009, 06:28 AM
#9861
Tech Regular
Mine isn't a Cooper-but it is a mini. WB is 225. Not quite done. I will have to cut out the lower front of the HPI Civic to fit. Don
08-18-2009, 07:42 PM
#9862
Tech Master
iTrader: (23)
Join Date: Jun 2005
Location: wonderfull place called, MALAYSIA.
Posts: 1,592
Trader Rating: 23 (96%+)
08-19-2009, 03:45 AM
#9864
Fish .. two weeks back you're set-up advice was to just throw the mini on the track.
The next week you're publishing high tech weight distribution data.
The next week you're publishing high tech weight distribution data.
Some further information regarding the M05 that drivers might find of interest:
The M05 in medium mode is actually heavier than the M05 in long mode (extra plastic piece)
In my M03L the weight distribution was 60:40 F:R
In a M05M the weight distribution is 55:45 F:R
In a M05L the weight distribution is 58:42 F:R
This shows that in actual fact the medium has a bigger weight bias to the rear than the long version. Taking this further it would be reasonable to assume that the short wheel base is even worse. This to me means a bigger pendulum effect on the shorter cars
My idea would be to see if I can balance the car so that the bias is similar to the M03L. At this point it is not far wrong
Hope this gives you something to think about
The M05 in medium mode is actually heavier than the M05 in long mode (extra plastic piece)
In my M03L the weight distribution was 60:40 F:R
In a M05M the weight distribution is 55:45 F:R
In a M05L the weight distribution is 58:42 F:R
This shows that in actual fact the medium has a bigger weight bias to the rear than the long version. Taking this further it would be reasonable to assume that the short wheel base is even worse. This to me means a bigger pendulum effect on the shorter cars
My idea would be to see if I can balance the car so that the bias is similar to the M03L. At this point it is not far wrong
Hope this gives you something to think about
08-19-2009, 08:19 PM
#9867
hey what is the better buy a spektrum 2.0 or 3.0
08-19-2009, 11:59 PM
#9868
The only real difference between these two radio's is the 2.0 is two channels, and the 3.0 is three channels. I believe, for the most part, the fatures are identical. For a mini you don't need a third channel, but in applications like rock crawlers a third channel is a must. I bought mine when they first came out, so I can't remmember if there is any further advatages of one over the other.
