Engine basics > Four strokes only

Surpass FS-26

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Dave Hull:
Ahhh, the old drill bit technique!

On the one 4S I got a chance to play with a bit, the change in airspeed (power) with seemingly small changes in venturi size was impressive. This was on a big Saito, so it may not be an issue with a smaller engine using more of the available power?

You might bring some small O-rings and pantyhose with you, just in case it is breathing a bit too much. Kind of an anti-drill bit.

Divot

Target:
It's the small TD venturi (I think a #32 bit?), so I am hoping it would only need opening not reducing. But the P/H is probably something I should bring with me anyway, incase I soil mine.....
Thanks for the reminder.
I hope to have results for this mod before the end of the year, LOL.

Vr,
Target

Target:
Does someone have the P/N for the intake gasket between head and elbow? Is that even available anymore?
Yes, I have looked here-

https://www.osengines.com/parts/discontinued.html

Thanks!

Target

Mark Mc:
Now that is definitely something I would never have thought of.  Curious to see the results.

Mark

Mark Mc:

--- Quote from: Target on February 03, 2019, 02:01:51 AM ---I finally set up my intake on my OS .26 fs tonight.

--- End quote ---

Chris,

Did you ever get any time on this TD venturi setup?

Mark

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