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Tamiya TRF 801XT Build Thread

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Old 07-06-2011, 08:23 AM
  #301
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Default RE: Tamiya TRF 801XT Build Thread


Quote:
ORIGINAL: pianori

Which can are you using? I'm not sure if I want to go electric or nitro. I have a castle 2650 sitting around and a AE .28 ported. I'm leaning more towards the nitro option(sitting in my pile of parts) as the 2650 is in an Xray 808 that I'm still enjoy at the track. Is the 2650 strong enough for this truggy?
Are you the guy on youtube with the 808 doing street passes with a go pro hd at what looks like about 70mph?
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Old 07-06-2011, 08:33 AM
  #302
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Default RE: Tamiya TRF 801XT Build Thread


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ORIGINAL: pianori

Which can are you using? I'm not sure if I want to go electric or nitro. I have a castle 2650 sitting around and a AE .28 ported. I'm leaning more towards the nitro option(sitting in my pile of parts) as the 2650 is in an Xray 808 that I'm still enjoy at the track. Is the 2650 strong enough for this truggy?
I'm using a Medusa 36-60-2200 4-pole motor. It's got plenty of oompfh. Don't make 'em anymore (Medusa RC stuff is no longer).
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Old 07-06-2011, 09:54 AM
  #303
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Default RE: Tamiya TRF 801XT Build Thread

No, that is not me. I did something similar with an XTM XT2e though and it hit about 65mph. (youtube search: XT2E xtm 19t/46 65 mph on grass)
I got tired of the XTM car as it is horrible in the track, but great on a fast straight. So I wanted something better on the track so I decided to buy the 808 (also have an RC8B with custom CF shock towers).

My wife burned the Castle 2650 a few weeks ago on the XT2e at the park. I installed a 20 pinion and a 46 spur. If was incredibly fast, but could only drive it for about 8 min to keep temps below 160F. After she drove the crap out of that car, she came to me and asked why was my receiver beeping? It was the telemetry sensor warning for over 180 degrees F. Well when I got the car back the motor smelled funny. I could not verify, but I'm sure it went past 210F. Any way I send it to Castle for repair and they are sending me a new one tomorrow (according to tacking number).
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Old 07-06-2011, 09:57 AM
  #304
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Default RE: Tamiya TRF 801XT Build Thread

Thanks Eman77 for the info. So it sounds like the Castle Mamaba 2650 should be fine if I decide to put it in.
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Old 07-06-2011, 11:03 AM
  #305
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Default RE: Tamiya TRF 801XT Build Thread

The thing about the 2650 is that you aren't supposed to do 6S if that bothers you. Here's the guy I was talking about...Crazy crazy car. This guy IS doing 6S on a 2650 with the 808. If it had been you I would have asked you how the motor is doing...gets faster as the vid goes on.

[youtube]http://www.youtube.com/watch?v=YNw_teWE3TU[/youtube]
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Old 07-06-2011, 12:19 PM
  #306
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Default RE: Tamiya TRF 801XT Build Thread

I asked that question to Castle Creations long time ago because I was thinking of doing the same thing. The tech support said that that motor is not supposed to run at 6C for long amount of time, but if you monitor the temperature and keep it under 180 you will be fine (over 200 the motor burns - that is what happened to my wife).

As of now I have only run the 2650 with 4C with a 19 and a 20 pinion and a 46 spur. I have my telemetry thermocouple alarm to go off at 180 F. I could get about 10 min of run time at insane speeds before I would have to take a brake to allow the motor to cool off. You are tempting me now!

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Old 07-10-2011, 08:05 PM
  #307
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Default RE: Tamiya TRF 801XT Build Thread

Ok I received the 801XT on Wednesday and run it today at the track. I'm really impressed with it. I cannot believe it is only $229 shipped.

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Old 07-11-2011, 06:37 AM
  #308
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Default RE: Tamiya TRF 801XT Build Thread

Yeah, it's a fantastic deal for sure.

I need to take outdoor pics of mine, but now it has skid marks on the roof from a bad spill, so it's not going to clean up as well any more. [&:]
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Old 07-12-2011, 06:26 AM
  #309
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Default RE: Tamiya TRF 801XT Build Thread


Hey is the clutch bell a mod 1? The pins in the clutch fly wheel that hold the pads where not even in height causing at one point misalignment that lead to the clutch bell gear to strip. I looked on the Tamiya site for replacement but it only shows part # 9404968 which is a 13T. The kit comes with a 15T but I cannot find the part # for it. I am confused!

There should be another manufacture that I can use the clutch bell from. I was thinking Associated RC8 or OFNA. Any thoughts?
Thanks,
Eric
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Old 07-13-2011, 05:24 AM
  #310
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Default RE: Tamiya TRF 801XT Build Thread

Correct, Mod1 is what you want. Not sure about your 15T you had, and only seeing a 13T part - since I'm electric, I'm not using a clutch bell (just a simple pinion), so I can't speak to that issue.

I'm using a Novak pinion - can't really tell you what clutch bells are good/bad brand-wise. I'm sure either AE or Ofna are just fine though, they make quality stuff.
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Old 07-13-2011, 06:22 AM
  #311
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Default RE: Tamiya TRF 801XT Build Thread

Thanks for the reply. I ended up calling Tamiya and they said that OFNA and Nitro House makes engines and engine parts for them. They also said that in the kit they include the 801X bell with 15T (part # 84073) that is why it is confusing. Any way, problem solved.

Another issue with the car is the fuel tank. I had a hard time tuning the engine until I realized that there were tons of bubbles in the fuel line. I traced the line and it shows that bubbles are mixing with the fuel right after the fuel tank nipple. I will change the fuel tank from the HB D8 and that should fix it (I have a few around).

On a good note the TRF801XT is simply awesome. It is stable, precise, fast and rock solid. Some times it pops wheelies depending on where and how I drive it. The best $200 I spent in some time. I'm very happy with it. I'll try to post on Youtube a little vid from my phone.
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Old 07-13-2011, 07:14 AM
  #312
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Default RE: Tamiya TRF 801XT Build Thread

Glad you like it! It's the favorite in my lineup currently, I run it the most - by far. [8D]
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Old 07-20-2011, 11:15 AM
  #313
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Default RE: Tamiya TRF 801XT Build Thread

Where did you get the rear dirt guards? i wolud love to get a pair.
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Old 07-22-2011, 02:26 PM
  #314
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Default RE: Tamiya TRF 801XT Build Thread

David Jun talks about 801X/XT..

[youtube]http://www.youtube.com/watch?v=YD1m4FJOypE[/youtube]
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Old 07-24-2011, 05:27 PM
  #315
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Default RE: Tamiya TRF 801XT Build Thread

can any of you all tell if this is the updated version with the shorter arms/ shafts?
http://cgi.ebay.com/Tamiya-49497-TRF...ht_6849wt_1185
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Old 07-25-2011, 05:24 AM
  #316
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Default RE: Tamiya TRF 801XT Build Thread


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ORIGINAL: mychales

Where did you get the rear dirt guards? i wolud love to get a pair.
I got mine from amainhobbies: http://www.amainhobbies.com/product_...ggy-Mud-Guards

They are made for the D8T, so I had to trim a bit off here or there (used lexan-trimming scissors), and had to drill a hole to mount 'em, but they work fine. And for $6, it's well worth it.
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Old 07-25-2011, 06:43 AM
  #317
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Default RE: Tamiya TRF 801XT Build Thread

Good info on the +5 chassis.
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Old 07-25-2011, 07:04 AM
  #318
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Default RE: Tamiya TRF 801XT Build Thread


Quote:
ORIGINAL: chaserogesr14

can any of you all tell if this is the updated version with the shorter arms/ shafts?
http://cgi.ebay.com/Tamiya-49497-TRF...ht_6849wt_1185
I can't say for 100% sure, but I do NOT think it's the updated one w/shorter arms. Part number for the update is 49497A - and anyone selling THAT one always points out the shorter arms and improvements included (since it's more expensive).

The box in that listing looks exactly (dead on) like the one I have (non-updated one). Not sure if they updated the box for the upgraded one to mention the new parts (I figure Tamiya would slap a sticker on it at least).
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Old 07-25-2011, 07:58 AM
  #319
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Default RE: Tamiya TRF 801XT Build Thread

My throttle servo carped out. I was running an MKS DS1210
[link]http://www.amainhobbies.com/product_info.php/cPath/61_100/products_id/207999/n/MKS-DS1210-Titanium-Gear-Standard-Digital-Servo[/link]

In the TRF and it lasted 2 weeks (the motor fried)

In my Buggy throttle I am running the Savox SC-1258TG on the throttle with no problems so far.
[link]http://www.amainhobbies.com/product_info.php/cPath/61_100/products_id/183316/n/Savox-SC-1258TG-Standard-Digital-High-Speed-Titanium-Gear-Servo[/link]

Is the Savox SC-1258TG going to be strong enough for he truggy or is it going to crap out too? I also have a Savox SC-0251 around but I an not sure if it will be fast enough.
[link]http://www.amainhobbies.com/product_info.php/cPath/61_100/products_id/183309/n/Savox-SC-0251-Larger-Standard-Digital-High-Torque-Metal-Gear-Servo[/link]

What do you think?
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Old 07-25-2011, 12:35 PM
  #320
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Default RE: Tamiya TRF 801XT Build Thread


Quote:
ORIGINAL: Eman77


Quote:
ORIGINAL: chaserogesr14

can any of you all tell if this is the updated version with the shorter arms/ shafts?
http://cgi.ebay.com/Tamiya-49497-TRF...ht_6849wt_1185
I can't say for 100% sure, but I do NOT think it's the updated one w/shorter arms. Part number for the update is 49497A - and anyone selling THAT one always points out the shorter arms and improvements included (since it's more expensive).

The box in that listing looks exactly (dead on) like the one I have (non-updated one). Not sure if they updated the box for the upgraded one to mention the new parts (I figure Tamiya would slap a sticker on it at least).
looks like if I bought that id only have to spend about 50 more on the short arm setup, thats not too bad
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Old 07-25-2011, 12:44 PM
  #321
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Default RE: Tamiya TRF 801XT Build Thread

Not sure about that, you need shorter arms F/R, and shorter CVDs front/rear. It adds up [&:]
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Old 07-25-2011, 12:49 PM
  #322
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Default RE: Tamiya TRF 801XT Build Thread

amain's got the the cvds 17.99 for two and 20.99 for the front and rear arms
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Old 07-25-2011, 01:06 PM
  #323
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Default RE: Tamiya TRF 801XT Build Thread

$21 for front and rear combined, or each? If all the prices are "each", then look at 2 sets of CVDs ($18 x 2) plus 2 sets of arms ($21 x 2), so that's about $78.

But hey, that ebay auction plus the above price is still way cheaper than any other way to get the short arms! Go for it.
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Old 07-25-2011, 01:30 PM
  #324
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Default RE: Tamiya TRF 801XT Build Thread

hah
http://www.amainhobbies.com/shopping_cart.php
I know tamiya isnt stopping the 801 stuff but its getting pretty cheap
yea no matter what it still beats the price of the performance package kit
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Old 07-25-2011, 02:58 PM
  #325
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Default RE: Tamiya TRF 801XT Build Thread

Has any one tried the shorter arm setup that you know of? Does it really make a difference? It is only 5mm shorter. Can it make that much of a difference? I am curious because i want to justify the upgrade!

Any feedback?
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