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Old 05-17-2023, 11:11 AM
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Originally Posted by Csaari77
Is there a plan for an alternate motor if the Reedy FT 21.5 isnít back in stock or are we just screwed?
Looking for one myself. I think I saw a mid-May ETA somewhere?
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Old 05-24-2023, 08:56 PM
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I don't see a rule about battery stays/holders. When using a shorty pack in M-chassis are there rules around what can be used?
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Old 05-25-2023, 11:21 AM
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Originally Posted by quantum
I don't see a rule about battery stays/holders. When using a shorty pack in M-chassis are there rules around what can be used?
You can run a shorty pack and tape it in.
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Old 05-30-2023, 06:17 PM
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Originally Posted by Raman
You can run a shorty pack and tape it in.
Hmm, thanks - what about 3D printed battery stays?
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Old 05-31-2023, 04:00 PM
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Originally Posted by quantum
Hmm, thanks - what about 3D printed battery stays?
Nope. Not original Tamiya part
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Old 05-31-2023, 05:02 PM
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Originally Posted by Raman
Nope. Not original Tamiya part
Seems a bit odd you're allowed to use tape or foam but not plastic.
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Old 05-31-2023, 05:07 PM
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Tamiya rules are especially peculiar about this, while they still usually vary greatly between countries. And non-Tamiya parts seems one of the major on-going themes that are more or less consistent nevertheless.
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Old 05-31-2023, 09:29 PM
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Originally Posted by DirkW
Tamiya rules are especially peculiar about this, while they still usually vary greatly between countries. And non-Tamiya parts seems one of the major on-going themes that are more or less consistent nevertheless.
I'm surprised they don't require Tamiya brand tape or foam.
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Old 06-01-2023, 10:12 AM
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Tape, adhesive, foam, oil, grease, glue are generic expendable items.

battery tape has been used for years, dates back to NiCd/ NiMh. TRF415, 416, 417 didnít have battery retainers so tape was used. So tape is legal.

3D printing a part to substitute a battery holder to fit a shorty pack, is creating / designing a specific aftermarket part for the M07 / M08
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Old 06-01-2023, 10:15 AM
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Originally Posted by quantum
I don't see a rule about battery stays/holders. When using a shorty pack in M-chassis are there rules around what can be used?
You may want to consider minimum weight before you go with a shorty. My M08 was severely underweight with a a shorty, so I ended up running standard. Even then, I still needed to add 50g to make weight.

M07 is a bit heavier.
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Old 06-01-2023, 11:45 AM
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Originally Posted by Raman
You may want to consider minimum weight before you go with a shorty. My M08 was severely underweight with a a shorty, so I ended up running standard. Even then, I still needed to add 50g to make weight.

M07 is a bit heavier.
Same. I added 50g and actually a touch more to bring it a few grams over. The extra weight doesn't hurt the rwd cars.

With the M08, I wanted the side-to-side weight distribution that a full size pack provides.
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Old 06-06-2023, 02:36 PM
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Originally Posted by Raman
Nope. Not original Tamiya part
Originally Posted by DirkW
Tamiya rules are especially peculiar about this, while they still usually vary greatly between countries. And non-Tamiya parts seems one of the major on-going themes that are more or less consistent nevertheless.
Originally Posted by Raman
Tape, adhesive, foam, oil, grease, glue are generic expendable items.

battery tape has been used for years, dates back to NiCd/ NiMh. TRF415, 416, 417 didnít have battery retainers so tape was used. So tape is legal.

3D printing a part to substitute a battery holder to fit a shorty pack, is creating / designing a specific aftermarket part for the M07 / M08
If thats the rule, fine. But am I the only one who finds that odd? because the battery stay is not performance enhancing, it just holds the pack in. If there were a tamiya part that was designed for that purpose then we'd just use that. Generic screws and turnbuckles are allowed. In fact you could argue that lightweight, titanium, hardware has more of an impact on performance than a piece of plastic that simply avoids (and is heavier than) tape!
So is that the official rule from FMW? or is that our collective, educated assumption?
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Old 06-06-2023, 02:39 PM
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Originally Posted by Raman
You may want to consider minimum weight before you go with a shorty. My M08 was severely underweight with a a shorty, so I ended up running standard. Even then, I still needed to add 50g to make weight.

M07 is a bit heavier.
I'm experimenting with shorties on the basis that mass centralization is "good". I've added weight to bring it up to par and... so far so good. Had to chase setup a bit, but rotates well. You have to plug in your batt before sliding it in, so that is a bit of a pain.
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Old 06-06-2023, 02:41 PM
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Does anyone know if the TRF420 C-hubs are a direct fit for older models TRF417, 418 suspension? TIA
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Old 06-06-2023, 02:51 PM
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No unless you ream out the hinge pin hole from 2.6 to 3mm which I don't think is allowed in TCS rules but is physically possible.


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