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View Full Version : overall Mini-Z weight?


rivaldo
2009.04.15, 03:28 AM
hi,

I am new and just own a 1:28 pancar. I am curious, whether my car is lighter or heavier than a standard MR-02.
what's the weight of a MR-02 including batteries and karo?
what's the minimum weight one has achieved for a mini-z scale?

I'll post pics and more info later today..

Eman
2009.04.18, 12:47 AM
My fully optioned MR-02 MM 98mm car weighs 139 grams. With autoscale body, without batteries.

color01
2009.04.18, 02:11 AM
So assuming 48g of battery, you'd be up to 187g. That's a good ballpark. :)

My own pan car weighs about 170g (w/ body, w/ batteries), but it's an MRCG (converted MR02) so it's rather underweight. I have gotten the car down to 163g with an SC430 white body. That's the lowest weight I've ever seen with a Mini-Z running a hard plastic body.

If I had a Lexan body to install, we would be down to 145g. :cool:

rivaldo
2009.04.18, 10:55 PM
thx for your info.
I already read quite something about your MRCG and would like to see some drive.
here are some pics from my pancar version in mini-z scale.
I was a bit astonished to measure a quite low weight, but it's for good reasons as I use lipo and BL-motor.
I will shorten some wires - mainly the servowire, which is ugly and unhandy.
I had to drill out a bit of the body to be able to mount it, since the rather small, but comparably huge acoms hayabusa 2,4GHz receiver demanded this. surely there are some smaller and more expensive 2,4GHz receivers on the market.
and of course the body needs some color!

http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000258.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000257.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000256.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000255.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000254.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/Bild017.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/Bild018.jpg

color01
2009.04.19, 01:17 AM
Certainly the LiPo and BL motor are worth a lot of weight, but you must be doing something right if you can get the chassis down to 124g with modular electronics! How much does your chassis weigh without battery, motor or electronics?

Skv012a
2009.04.19, 01:21 AM
Average for tuned MR15s is 170-5; MR02s are 180-5; MAs are 180-200. Remember that more weight at the right spot > overall less with poor balance.

rivaldo
2009.04.19, 05:36 AM
I didn't weight the pure chassis, but will do that the next days.
I guess, the chassis is about the same weight as yours, because the lipo ist only 30g and the motor is only 10g. servo, ESC and receiver are all around 7g.
what I should have mentioned:
it's not me, who developed the chassis, but:
http://www.carbon-one.at/

the chassis is designed for AAA cells, but I wanted to use a lipo and a tiny BL and think it's perfectly drivable.

Skv012a
2009.04.19, 12:05 PM
Remember that Li-Pos are illigal for all official races like HFAY, PNWC, and so on.

Yvan
2009.04.20, 04:51 AM
Hello everyone from Spain.

I have been working on my miniz (MR02) weight but I can not go lower than 190g !!! Which is too heavy.
So how do you do to to get 170/175 g ?

I think that the motor mount must be important as some of them are heavier than others.
Is it correct ?

Skv012a
2009.04.20, 12:25 PM
Yes, but not by 10 grams heavier. Answer #1: MR-15. It has far less chassis bulk than an 02. Answer #2: shave some chassis parts to reduce a few grams. Use as little aluminum parts as you can.

CristianTabush
2009.04.20, 02:29 PM
No shaving is necessary, just don't use a whole lot of aluminum. The body is one of the most important places to loose weight. My bodies weigh in at around 33-35 grams (some of the new ones, ie the GTR McLaren and Skyline) weigh close to 43-46 grams standard. By loosing 8-10 grams, you are close to the new weight. Sure you can loose even more weight by lightening the chassis, but this is at the expense of durability and increased chassis flex. Neither of which you want.

PN mounts are much lighter than Atomic, typically. Use titanium screws and plastic or delrin wheels. ASF boards are also lighter. Titanium shaft for the differential is a must. Use Orion/R1 Wurks/ TRP batteries. They are lighter than the rest.

My latest 02, with the new PN Front, ready to race with a Giro-Z installed and a modified motor (heavier than stock motors) is 182 g. With a stock front end, it weighs in at around 176.

Skv012a
2009.04.20, 04:08 PM
Let me actually add a small note- look @ my new thread over in Science section about stock arm reinforcement. This lil technique could save some of us $ on replacing front ends/chassis and/or save weight since you won't need the aluminum parts as an alternative.

eztuner12
2009.04.20, 07:55 PM
thx for your info.
I already read quite something about your MRCG and would like to see some drive.
here are some pics from my pancar version in mini-z scale.
I was a bit astonished to measure a quite low weight, but it's for good reasons as I use lipo and BL-motor.
I will shorten some wires - mainly the servowire, which is ugly and unhandy.
I had to drill out a bit of the body to be able to mount it, since the rather small, but comparably huge acoms hayabusa 2,4GHz receiver demanded this. surely there are some smaller and more expensive 2,4GHz receivers on the market.
and of course the body needs some color!

http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000258.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000257.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000256.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000255.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/P1000254.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/Bild017.jpg
http://i598.photobucket.com/albums/tt70/rivaldoxy/Bild018.jpg

Hi rivaldo
Yep, very nice, incredible simple and practical chassis:)
Gracias!
Saludos.

Yvan
2009.04.22, 03:32 AM
Thank you for your reply.
I guess you have been working hard on that mateer :).
My 02 is with an old PN motor amount and I was thinking to get the ATM V3 or V5, as it is quite used here in Spain.
But Cristian, as you say that PN is much lighter than ATM, which mount could you suggest me ? I am open mind.
And I usely use the Lexus SC340 body.

Thanks.

Skv012a
2009.04.22, 08:37 AM
Get the 94-98mm MidMount LCG. Maybe even newest 90mm MidMount if you plan on using 90, 94, and 98.

Eman
2009.04.23, 12:39 AM
rivaldo your car is sick man! I've got to build one for myself. I was wandering if they had BL for Mini Z's. Where can I find build info on cars like that. What do you think you have invested? I need info please!

rivaldo
2009.04.23, 03:38 AM
I guess you don't wanna built your own chassis, which is quite some work and needs machinery. I bought the chassis at http://www.carbon-one.at/

the pure chassis is 120. with all mini-z parts like diff, knuckles... (which he also offers) it's 210

well, the rest is electronics. I took the cheapest 2,4GHz system I found. the Acoms hayabusa with it's pretty small receiver. but spektrum or yeti are also possible of course. regarding the BL-motor: it must be a tiny one, otherwise you can't handle the power. mine weights 10g. I had to slightly modify the motormount for this small motor. of course you need an BL-inrunner. there are many ESCs on the market 10A continuous current is enough.
about the lipo: you have to play around a bit to find the best fitting one. depends what lipo capacity you want. servos at right size are available everywhere.