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Old 08-12-2008, 11:21 PM   #9541
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Guys, appreciate any advice here. I am looking to go brushless, but am undecided on 13.5 or 17.5.

I have been on the Tamiya Sports tune ever since I got the car, I think I am pretty OK at driving it and don't really have a big desire for more speed at the expanse of run time, wear/tear, etc at the moment. Am using Lipos too. Mostly bashing on the local asphalt track (longest straight is about 60'), but may race in the future.

I have read that 13.5 and 17.5 needs low FDR, but those with the 05R will know the FDR is quite limited, on the stock 105T spur, 49T will get me just under 5, 50T will get me 4.7, but I'm not sure if 50 or 51T will fit? I prefer not to change the spur and/or belts (to the IRF-R 18/37) to lower the internal ratio. 13.5 should be close to the Tamiya RZ/TZ?

Appreciate any inputs, thanks and cheers!
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Old 08-13-2008, 06:41 AM   #9542
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Why do you think the FDR is limited in the TA05? I can get down to a 3.8 without breaking a sweat using an 88/52 64P. I'm using a 13.5 at 4.5 FDR with no issues. You can get even smaller spur gears and larger pinions at Nexus Racing for even lower FDRs.

The only limit is if you want to keep using the original metric pitch spur gear that comes with the kit. That was the first item I threw away.
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Old 08-13-2008, 07:16 AM   #9543
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Quote:
Originally Posted by DirtyRacer View Post
You can add lead weights...
- Under your ESC
- on top of your servo
- in the space between the servo and motor (then mount your receiver on top of it)
You can also attach to each lipo
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Old 08-13-2008, 08:57 AM   #9544
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Stocker,

It would be tough to get to the FDR you need with the 105 spur. I run a 17.5ss in my R and have not had to change the internal drive ratio. I run a 88/48 combo in mine and have not had a problem yet and have plenty more room to gear.

The real problem that I have had with gearing is getting too small of a spur and not being able to get the pinion I need to properly mesh. I think the 88 in 64p is about the smallest I would go if I was wanting to run 13.5/17.5 brushless motors. The lower wind motors (10.5-2.5) can take less gear so you don't have a much of a gearing issue.
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Old 08-13-2008, 12:20 PM   #9545
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Originally Posted by stocker View Post
Guys, appreciate any advice here. I am looking to go brushless, but am undecided on 13.5 or 17.5.

I have been on the Tamiya Sports tune ever since I got the car, I think I am pretty OK at driving it and don't really have a big desire for more speed at the expanse of run time, wear/tear, etc at the moment. Am using Lipos too. Mostly bashing on the local asphalt track (longest straight is about 60'), but may race in the future.

I have read that 13.5 and 17.5 needs low FDR, but those with the 05R will know the FDR is quite limited, on the stock 105T spur, 49T will get me just under 5, 50T will get me 4.7, but I'm not sure if 50 or 51T will fit? I prefer not to change the spur and/or belts (to the IRF-R 18/37) to lower the internal ratio. 13.5 should be close to the Tamiya RZ/TZ?

Appreciate any inputs, thanks and cheers!
I run between a 4.31 - 5.4 depending on track size. This past weekend I was running a 4.31 without any issues and could have ran a 4.1 because of track temp and outside temp (no fan just heat sink). fine the right gearing for you and your liking. ask people at the track what gearing do they run and try it out. i run 69/36 48P. runs like a charm
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Old 08-13-2008, 05:05 PM   #9546
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My motor mount is very slightly bent due to a hard side impact to the motor. Is it worth going to the hop-up motor mount or should I just get the $7 stock replacement? I'm just about to switch from 27T to 13.5BL -- will I need the extra heat-sink capability?
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Old 08-13-2008, 05:12 PM   #9547
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Originally Posted by reenmachine View Post
My motor mount is very slightly bent due to a hard side impact to the motor. Is it worth going to the hop-up motor mount or should I just get the $7 stock replacement? I'm just about to switch from 27T to 13.5BL -- will I need the extra heat-sink capability?
the heatsink motor mount is DEFINITELY worth the upgrade. esp when you run brushless.
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Old 08-13-2008, 05:15 PM   #9548
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Quote:
Originally Posted by reenmachine View Post
My motor mount is very slightly bent due to a hard side impact to the motor. Is it worth going to the hop-up motor mount or should I just get the $7 stock replacement? I'm just about to switch from 27T to 13.5BL -- will I need the extra heat-sink capability?
Actually, a properly geared 13.5BL wont get any hotter than a 27t stock motor. In fact, it should run a bit cooler. Besides that, the TA05 motor mount is about THE only hop up for the car that I would say is over priced. It still cost a fortune even if you get it from somewhere like rc-champ.

So I would say go for the $7 stock replacment. It does the job as well as it needs to, especially if your switching to BL.
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Old 08-13-2008, 05:38 PM   #9549
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Hi All

I am using 48P in my TA05-R & can get my FDR down to 3.38 for 17.5 BL or as high as 10.13 for a 4.5 Mod BL

See ya
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Old 08-13-2008, 07:38 PM   #9550
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Originally Posted by Darkseid View Post
Actually, a properly geared 13.5BL wont get any hotter than a 27t stock motor. In fact, it should run a bit cooler. Besides that, the TA05 motor mount is about THE only hop up for the car that I would say is over priced. It still cost a fortune even if you get it from somewhere like rc-champ.

So I would say go for the $7 stock replacment. It does the job as well as it needs to, especially if your switching to BL.
Sage advice. It's easy to fall into the trap of using a broken part to justify the purchase of bling! I found a new stock motor mount on eBay for $3 + $4 shipping and hit the BIN. Saved about $50 right there! Cheers.
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Old 08-13-2008, 10:11 PM   #9551
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Anyone have ideas to mount the LRP sphere TC spec on the TA05? The foot print is perfect, but that dreaded power capacitor is in the way... is it possible to lengthen the wire and mount the cap somewhere else?
Thanks
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Old 08-13-2008, 11:03 PM   #9552
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i put shogoo on the cap and mount it to what ever is close for you. when the shogoo dries it's there to stay until you pull it apart. 100 times better than any servo tape. and yes you can lengthen the cap leads. does'nt hurt anything.
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Old 08-13-2008, 11:58 PM   #9553
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Anyone have ideas to mount the LRP sphere TC spec on the TA05? The foot print is perfect, but that dreaded power capacitor is in the way... is it possible to lengthen the wire and mount the cap somewhere else?
Thanks
you can lengthen the wires. but i just have mine hanging out there on the side of the ESC.
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Old 08-15-2008, 09:02 AM   #9554
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OK, looks like I've gotta change out the stock spur. I already have pinions from 38-47, so I guess I can get any of the standard type of 64p spurs, like Kawada, Robinson, or even the TB-03 spur 96T (#54055) right?
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Old 08-15-2008, 09:56 AM   #9555
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Originally Posted by stocker View Post
OK, looks like I've gotta change out the stock spur. I already have pinions from 38-47, so I guess I can get any of the standard type of 64p spurs, like Kawada, Robinson, or even the TB-03 spur 96T (#54055) right?
You can also go for the Tamiya 04 module gears. They are similar size to 64p, but metric.
The standard upgrade for an 05 is a 105T spur, not sure if you will get the ratio you are chasing tho.

Actually, Just read your original post again. I can confirm the 50 and 51 fit .. the 51 is the absolute limit.
And 50978 gives you both a 96T and a 90T

Kevin

Last edited by kavadni; 08-15-2008 at 11:03 AM.
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