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#1 Video: Hitachi SideDraughts In Action
ddgonzal Posted on: 2008/5/17 18:39
ang94541's Video on YouTube

Quote:
I used one of those tiny security/spy camaras hooked up to my video camara. I mounted the camara with 2 sided tape and used an old foglight for lighting.
This was in response to my question of "what the fark are those SU pistons doing ?!?!" Apparently I have a bit of a reversion problem. lol

- ang94541
Nice work Angelo. I didn't realize the SU-type pistons didn't open up all the way when you floor the pedal, they seem to open gradually as RPMs increase. But they close quickly.

Quote:
Now that's got to be one of the most usefull video's that I have seen.
The reversion was worse at full throttle & at full engine speed, yet it still sounded like it was running fine.

The pistons were not bouncing about, so the dampers are working fine at least. Are you using a production type manifold, or a home made one?

- Dodgeman
Good question. What type of manifold is it? You have an A12A head on their, right?
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#2 Re: Video: Hitachi SideDraughts In Action
ang94541 Posted on: 2008/5/17 20:36
It's an H89 head. Small oval, closed chamber. Production manifold, homemade air cleaner. I think the valves are larger than the GX head.
Quote:
I didn't realize the SU-type pistons didn't open up all the way when you floor the pedal

Actually, I think the pistons drop when you floor it. That's apperantly a draw back of constant velocity carbs.
I have to do this again. I've changed the damper oil from gear oil to 15w fork oil.
I'd like to snap pictures while i drive at a steady pace and see where the pistons are. Then actually stop and take notes. RPM, a/f, vac,
On that last video, I had forgotten what I had done by the time I got home.
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#3 Re: Video: Hitachi SideDraughts In Action
1200wag Posted on: 2008/5/31 19:43
Cool video, sounds tough... [drool]
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#4 Re: Video: Hitachi SideDraughts In Action
A14force Posted on: 2008/5/31 21:22
That is brilliant!
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#5 Re: Video: Hitachi SideDraughts In Action
A14force Posted on: 2008/5/31 21:22
That is brilliant!
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