25 Size 2 stroke Comparison ST S25 vs Brat 25

This was harder than I thought.... Super Tigre S25ABC vs Brat 25 AAC. Both running Omega 10% and APC 9x6 props. See video for the plugs used.
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[@Clintfranklin]

Yes David, nice run. Glad to see you climbing back in the saddle. Those little engines are a lot of fun. Hope your doing ok. Looking forward to videos as always.

[@johnlamkin7268]

Great video Dave glad you're back .

[@luisgarza2036]

Under this conditions Bratt engine outperformed supertiger S by around 1400 RPM, those Bratt engines are awesome performers + inovative by using composite materials as you mentioned in other video. Bella still around playing.

[@wolfgangrumpel9509]

Wish we would have T-shirt weather here

[@theflyinggreek6329]

Pretty interesting that the Brat was so much more responsive. Cool comparison. Would running say, 15% make a huge difference?

[@dmrcflyr2]

I have done several comparisons of nitro content of fuels. No there is no appreciable or value in running 15% over 5%. I choose 10% today just because I had more if it.

[@theflyinggreek6329]

@@dmrcflyr2 , I am just getting back into gas, and dug out an old High Compression FA-80 that I am getting ready to go through. I have heard everything from 5% to running 20/20. Best suggestion? Also, where can I get parts for the FA-80? I enjoy the videos, I really like the comparisons.

[@dmrcflyr2]

I run only 5% in my Saito engines now. I used to always run 10%. There is no need, IMO to run any more nitro than that. It has worked well for me for 30+ years. Horizon Hobby is the exclusive distributor for Saito parts and has been for many years. Search eBay, hobby shops, or Horizon.

[@theflyinggreek6329]

@@dmrcflyr2 Thank you. Greatly appreciated.

[@wolfgangrumpel9509]

@@dmrcflyr2 But you mean this under Florida weather conditions. Here in Germany we found that higher Nitro helps to improve low rpm idling and better starting. We talk about temps below 13-10°C.