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Old 11-02-2008, 01:20 AM   #1126
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Hi guys, im going to get some IB 3800 Lipos so i can start racing again, my question is should i buy a battery strap (got my car 2nd hand and it didnt come with one) or should i just tape in the lipo? dont really want to use tape as its to much fiddling but will the batteries come out easy with a battery strap? i beleive the IB's have the chassis lugs which may help a bit.

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Old 11-02-2008, 01:30 AM   #1127
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Taping them in is the way to go especially if the LiPO has lugs.
But if you want to add weight to that side of the car then install the battery hold system with the carbon or plastic hold down plate.
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Old 11-02-2008, 03:52 AM   #1128
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Quote:
Originally Posted by Fast XXXS View Post
Hi guys, im going to get some IB 3800 Lipos so i can start racing again, my question is should i buy a battery strap (got my car 2nd hand and it didnt come with one) or should i just tape in the lipo? dont really want to use tape as its to much fiddling but will the batteries come out easy with a battery strap? i beleive the IB's have the chassis lugs which may help a bit.

Cheers
The IB 3800's have to mounted with the connections facing the front of the car to clear the top deck.
I removed a small amount of material (about 1mm in thickness) from the aluminium support just forward of the spur. or the battery is just touching and it wears away the battery.
I am using the two posts and plastic hold down that came with the MS. I had to glue about 7mm of hard foam to the unerside of the plastic hold down.

For interest, I have 40 of weight just forward of the battery, 60g just behind the battery, and 50g on the left rear.

There is also 30g in the center, under the belts, and 10g on the rear shock tower. It weighs 1501g.

Kevin
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Old 11-02-2008, 04:13 AM   #1129
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rctouringracer- Yeh i was thinking by using the strap i can get a bit more weight into the car.

Kavadni- Thanks for the info, i aiming to get my lipos in the next few weeks so ill see what needs to be changed. So wont the batteries fit if the connections are at the rear? I was just about to ask about the weights ill have to get my hands onto a bit more lead. Ill keep your suggestion in mind when it comes to putting the weight on.

Also something else, i took out the red foam pads from inside my oneway outdrives to free it up a little, will this put more wear on the shafts and cup?
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Old 11-02-2008, 04:17 AM   #1130
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For the IP3800 packs the battery bar/posts seems to be the best way to go, especially when the material is removed from the top deck support as has been mentioned.

When you're using packs that are taller, such as the TrakPower 4900s or LRP Competition Car Line 5300s (which I am using) then IMHO the best option is a Bitty Design lipo tray.

Here's a link to the lipo tray site...
http://www.bittydesign.net/prodottiPortaLipoINGLESE.htm

(click on the chassis you have from the pictured list on that page)

Attached is a pic of my car with the LRP 5300 lipo and Bitty Design lipo tray. I've also made some velcro straps to hold the battery to the tray.

In these photos, the tray is taped into the battery slots like you would a battery. I have however just made a prototype clamp that replaces the tape that holds the tray to the chassis and utilises the battery post holes in lower deck to secure it.

-Mark
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Tamiya TA05MS-dsc00039_640.jpg  
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Old 11-02-2008, 04:20 AM   #1131
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Also something else, i took out the red foam pads from inside my oneway outdrives to free it up a little, will this put more wear on the shafts and cup?
To my knowledge the urethane bushings inside the outdrives are there to stop chatter of the dogbones.

I got sick of replacing the bushings so i used an o-ring (the kind that goes in the shocks) in the short side of the diff and 2 of them in the long side. I have since stopped using these completely and cant say I've noticed an increase in wear of the outdrives.

-Mark
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Old 11-02-2008, 04:35 AM   #1132
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I like the looks of those trays, if i could afford the bigger Lipo's i would definetly get one. I dont really like the idea of having to grind away my lovely blue bling for the 3800s but oh well.

Yeh thats what i thought the bushings were for, i still have them and a few others so ill whack them back in if needed.
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Old 11-02-2008, 04:50 AM   #1133
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A note, the IP3800 25C is the absolute maximum height for the 05MS unless you use a tray.

I should also mention that it's extremely close to the center shaft (1/2 mm). Some small lead weights under the belts at center car are positioned to keep the lipo as far out as possible .. keeps it about 2mm away.

The top deck stops you plugging in if the connectors are positioned at rear.

Also 3 Racing velcro straps will not work, they foul the steering.

Kevin

Last edited by kavadni; 11-02-2008 at 05:01 AM.
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Old 11-02-2008, 05:00 AM   #1134
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Quote:
Originally Posted by Fast XXXS View Post
I like the looks of those trays, if i could afford the bigger Lipo's i would definetly get one. I dont really like the idea of having to grind away my lovely blue bling for the 3800s but oh well.

Yeh thats what i thought the bushings were for, i still have them and a few others so ill whack them back in if needed.
You can't see it once its done
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Old 11-02-2008, 11:51 PM   #1135
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Thanks for the help Kavadni, really appreciate it. I can only afford the IP's now anyway so it should be alright.

Can i use the carbon battery strap option for a normal TA05 on the MS? If not what other car battery straps will work?
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Old 11-03-2008, 10:42 AM   #1136
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Yes the carbon strap option for the TA05 will work on the TA05 MS.
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Old 11-03-2008, 11:08 AM   #1137
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Great car. just waiting for for 18t pulley's to arrive got trf415 black diff pulley's 35t then i will see if the conversion works..
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Old 11-03-2008, 04:56 PM   #1138
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While I have the Lipo's and have the car balanced up, tonight is actually the first night that they are legal at our club.

Today while sliding it around the kitchen floor and into a few chair legs the battery kept falling out.

I was using the MS battery strap, I've gone back to tape. The MS strap is way to soft|flexible, and the IP3800 are very slippery and rounded edges.
The MS strap was 19g.

A stiffer strap might work. It might pay o think about an Aluminium one, as a lot of weight is needed on the right hand side.

I think I mentioned it, you need about 6mm of padding under the strap with an IP3800. And the foam I tried was very hard.

Kevin
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Old 11-03-2008, 06:08 PM   #1139
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I made 2 small little stoppers that fitted to the outside edge of the lower deck (holes already there for the stick pack supports). Less than 10mm tall, these stopped the 6 cells packs from falling out the side when using the battery plate/posts to hold the packs in.

I'm guessing that something could be made that did the same job for the lipos?
You would need to make sure they can be attached and have the lipo still fit in the slots though...

-Mark

(Ps. am now using the Bitty Design lipo tray with velcro straps as seen in picture posted previously)
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Old 11-28-2008, 06:54 AM   #1140
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Has anyone here tried to upgrade some parts of the ta05ms with the trf416 parts?

Would the new castor blocks / uprights fit? Also the larger pulleys?
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