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FX Royal Racing Engine Thread

Old 05-22-2022, 06:54 AM
  #1816  
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Originally Posted by Roelof
You can always contact Hudy directly....
Or else get a 3 port P/S set
I hear ya man, but them being Hudy, they will prolly just tell me to get the new K502 when it comes out, instead of trying to help me out with a discontinued K501 P/S. Haha
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Old 06-27-2022, 09:34 AM
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Has anyone tested/compared the new 2169 to the 2131 and/or 2108?
On either k301, k501, k303 or k502

Curious to hear if any noticeable differences between pipes

i currently run 2131 on k301 in buggy and 2108 on k501 in truggy

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Old 07-29-2022, 04:43 AM
  #1818  
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Default K301ec piston and sleeve

Hi guys, having some trouble finding a piston and sleeve kit for my k301ec here in Sweden, part No 653103, and was wondering if someone knows of other piston and sleeve kits that are compatible with this engine. Cheers.
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Old 08-03-2022, 10:03 PM
  #1819  
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Originally Posted by Galatians2 20
Has anyone tested/compared the new 2169 to the 2131 and/or 2108?
On either k301, k501, k303 or k502

Curious to hear if any noticeable differences between pipes

i currently run 2131 on k301 in buggy and 2108 on k501 in truggy
I had the k303/2169 combo in buggy! Very nice combination, sounds killer……… makes good bottom end power, think it spools the 303 up to RPM’s a bit quicker than 2108

i now run the 2108 because it calms the bottom end (smooths) and also that pipe gets awesome runtime! 10min stops at my current local track
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Old 08-05-2022, 09:54 AM
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Originally Posted by 1evo RRR Driver
I had the k303/2169 combo in buggy! Very nice combination, sounds killer……… makes good bottom end power, think it spools the 303 up to RPM’s a bit quicker than 2108

i now run the 2108 because it calms the bottom end (smooths) and also that pipe gets awesome runtime! 10min stops at my current local track
Thank you for the report. I appreciate it.
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Old 08-26-2022, 07:10 AM
  #1821  
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Hello all. I could use some guidance. Which FX pipes are what seem to be an OS 2090 and 2060? I want to buy them for my OS based engines. RC America is here in my backyard and the price is better the OS pipes. I still love the 2169 on a K303, rips!! Thanks.
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Old 04-23-2023, 01:01 AM
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Hello people I cannot find PDF and exploded view on K303L.
On the Internet
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Old 04-23-2023, 02:49 AM
  #1823  
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Originally Posted by PedroJ
Hello people I cannot find PDF and exploded view on K303L.
On the Internet
Really? Did you check the manufacturer website?
Download | K303L (fx-engines.com)
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Old 04-26-2023, 03:12 PM
  #1824  
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something is wrong because the part numbers are all the same
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Old 12-03-2023, 04:19 AM
  #1825  
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Hello Friends, I have a doubt, I have a 0.30mm head.I use 30/25%.Nitro.
But now here in Europe it's only 16%.
My question is with a 0.20mm head, it is good for 16% or better below 0.20mmm.

Thank You

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Old 12-03-2023, 04:39 AM
  #1826  
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Taking out 0.1mm is the normal advise. You can try 0.15 because the 16% EU fuel is actually around 13%. If you blow plugs or see the surface of the piston shows lighter spots then you need to add some head clearance.
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Old 12-04-2023, 01:02 AM
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Originally Posted by Roelof
Taking out 0.1mm is the normal advise. You can try 0.15 because the 16% EU fuel is actually around 13%. If you blow plugs or see the surface of the piston shows lighter spots then you need to add some head clearance.
Roelof I'm going to try the 0.20mm head Shim.
​​​​​​On my FX K303 I'll give you the results later.

Thank You
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Old 02-13-2024, 06:44 AM
  #1828  
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Default FX with Novarossi tuned pipe

I am looking into getting a FX engine for my truggy. What would be the best one?

Also, I have 2 Novarossi tuned pipes and wonder if I could use them on the FX engine? Has anyone ran Novarossi pipes with FX engines.

I have the 2096 and 9901 Novarossi pipes.
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