295LikesTamiya mini cooper
07-31-2017 | 09:18 AM
So I think I found out why my M05v2R was pulling left when accelerating. I checked the corner weights using 4 small scales and found that the front right and rear left wheels were carrying a lot more weight than the opposing ones. I checked the preload of the shocks, and the corners carrying the most weight were set quite a bit shorter than the others, yet those wheels touched the ground first when testing droop. 
I suspected the chassis was twisted, so I loosened all the screws connecting the front half to the rear half of the chassis, gave it a wiggle, then tightened it back up. The corner weights balance pretty close to even now with roughly equal length shocks. Hopefully it runs straighter next time I take it for a spin.
I suspected the chassis was twisted, so I loosened all the screws connecting the front half to the rear half of the chassis, gave it a wiggle, then tightened it back up. The corner weights balance pretty close to even now with roughly equal length shocks. Hopefully it runs straighter next time I take it for a spin.The disappearing tape on the bottom of the chassis was one of my concerns. Because of this I also put tape on the inside and I'm glad I did. I have an idea to fix this though.
07-31-2017 | 11:25 AM
Adjusting springs corner to corner seems vital, especially on the 05. Adjusted mine when it was misbehaving and it was 100% better immediately.
In 07 news, I ordered a super shorty pack, because returning to a full size lipo feels like de-evolution to me. I'm may be wrong, as I often am. The upshot is it was only $20 after discounts. The downside is I still don't get to drive the car until end of September.
In 07 news, I ordered a super shorty pack, because returning to a full size lipo feels like de-evolution to me. I'm may be wrong, as I often am. The upshot is it was only $20 after discounts. The downside is I still don't get to drive the car until end of September.
07-31-2017 | 01:27 PM
My thought on this is centering mass, based on what I notice when I switched from full size to shorty pack in my 05 V2. I thought about a low CG pack and may still give one a try. I'll probably try a full size battery as well, just to cover all the bases.
07-31-2017 | 06:25 PM
I think the full-size battery helps keep the M-07 planted. I think traction will become more of an issue with a shorty.
I nearly destroyed my tape in a short run. Tamiya has to come up with a better fix for the bottom hole.
I nearly destroyed my tape in a short run. Tamiya has to come up with a better fix for the bottom hole.
07-31-2017 | 06:53 PM
Please, do give us an update. This was one of my concerns while building the M-07. I tried to tighten everything evenly and in a cross pattern so that I didn't distort the chassis.
The disappearing tape on the bottom of the chassis was one of my concerns. Because of this I also put tape on the inside and I'm glad I did. I have an idea to fix this though.
The disappearing tape on the bottom of the chassis was one of my concerns. Because of this I also put tape on the inside and I'm glad I did. I have an idea to fix this though.
I corner weighted my M07 while I was at it. Perfect distribution with zero effort, I made no attempts to manage tweak or balance it beforehand.
07-31-2017 | 07:44 PM
08-07-2017 | 01:13 PM
Joined: Sep 2010
Posts: 2,313
From: Chicagoland
You need to pick up the M05 Version II swingarms, and chassis. You need to order two of the swingarms, as they come in a set of "one front, one rear" arm. You also need to eithe rorder the M05v2 pivot pins, or some longer screw pins for the rear arms. Finally, you need 4 m3 setscrews to do the droop settings.
You'll lose most of the gold.
You'll lose most of the gold.
08-07-2017 | 01:24 PM
Joined: Sep 2010
Posts: 2,313
From: Chicagoland
Ok, my turn.
I put the blue/white spring combination on my M05. It seems excessively stiff. Even the red/yellow setup seems far to stiff.
Is this compensation for the floppy M05 chassis? Or can going down the "really soft setup" rabbit hole be the right thing to do?
I put the blue/white spring combination on my M05. It seems excessively stiff. Even the red/yellow setup seems far to stiff.
Is this compensation for the floppy M05 chassis? Or can going down the "really soft setup" rabbit hole be the right thing to do?
08-07-2017 | 05:19 PM
You need to pick up the M05 Version II swingarms, and chassis. You need to order two of the swingarms, as they come in a set of "one front, one rear" arm. You also need to eithe rorder the M05v2 pivot pins, or some longer screw pins for the rear arms. Finally, you need 4 m3 setscrews to do the droop settings.
You'll lose most of the gold.
You'll lose most of the gold.
If you're using an alloy motor mount you'll want to get the v2 version of that too.