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Queen Bee to TD09 Pis/Cyl question Cox_ba12





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Queen Bee to TD09 Pis/Cyl question Empty

Queen Bee to TD09 Pis/Cyl question

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Queen Bee to TD09 Pis/Cyl question Empty Queen Bee to TD09 Pis/Cyl question

Post  Cryhavoc Sun Oct 03, 2021 9:09 pm

I've seen references to guys modifying the .07 Queen Bee by putting TD 09 pistons and cylinders on them. I understand a crankpin bushing needs to be machined but what are you guys doing about the stroke. From what I can see the 09 has a longer stroke. If its not compensated for doesn't it mess up the port timing?

What do they run like with this mod?

Or is it just a, "Guess what I did" mod?.....

Thanks,
Mike
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Post  Lukemiester Mon Oct 04, 2021 1:49 am

Cryhavoc wrote:I've seen references to guys modifying the .07 Queen Bee by putting TD 09 pistons and cylinders on them. I understand a crankpin bushing needs to be machined but what are you guys doing about the stroke. From what I can see the 09 has a longer stroke. If its not compensated for doesn't it mess up the port timing?

What do they run like with this mod?

Or is it just a, "Guess what I did" mod?.....

Thanks,
Mike

I personally haven’t done it, I’ve just seen other people online do it before. Not sure if it would mess up the stroke, I know it’s a very very similar cylinder, not sure on the porting though
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Post  getback Mon Oct 04, 2021 8:50 am

did you read this one
https://www.coxengineforum.com/t12117-queen-bee-with-09-cylinder-piston?highlight=queen+bee+mod  Don't see where one modded was ran .. hear you look Very Happy  https://www.coxengineforum.com/search?search_keywords=queen+bee+mod
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Post  Cryhavoc Mon Oct 04, 2021 1:31 pm

Like that link, I keep seeing references to the mod but no concrete data. I would have thouhgt that guy "ampabuser", or something like that, over on RCGroups would be all over this mod but he seems content to ring out the stock 07 for all its worth.

Mike
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Post  getback Tue Oct 05, 2021 8:04 am

That's our 1/2Anut here on the forum , that's what he does REM them out LOL https://www.youtube.com/user/AmpAbuser This Site Rocks!
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Post  1/2A Nut Tue Oct 05, 2021 10:56 pm

Can try a turbo plug adapter for more QB power with a pressure tap.
https://kamtechnik.com/product/ktk-19/

Queen Bee to TD09 Pis/Cyl question Imag0316




Cox Queen Beast .074 / Kamtechnik Turbo Plug Adapter Test
Works with the .074  and .09 engines
Static Peak 19,783 rpm  / .214 hp - 158w / 56.2 mph pitch speed
Impressive 23.3 oz thrust!
OS P4 turbo plug / 25% nitro / 20% oil
This is now a viable power house well exceeding the TD .051


The best bet with a TD .09 is to source a Cox or Tornado RC carb or mod a carb to fit or
rob a throttle sleeve off a Medallion.

Queen Bee to TD09 Pis/Cyl question 20190926


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Post  sosam117 Wed Oct 06, 2021 8:17 am


Here are my Cox Tee Dee .09 with a Enya Quickly .09 carb.
Queen Bee to TD09 Pis/Cyl question 01_cox12
Queen Bee to TD09 Pis/Cyl question 02_cox11
Queen Bee to TD09 Pis/Cyl question 03_cox11

They throttle very well down to just over 3,000rpm and needle adjustments are good as well.
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