S&S reed valve for 99 Evo - Harley Davidson Forums: Harley Davidson Motorcycle Forum
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post #1 of 15 (permalink) Old 10-31-2012, 04:35 PM Thread Starter
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S&S reed valve for 99 Evo

Is the S&S reed valve as good as it sounds? I'm thinking about getting one. My steel gear shows some pitting from poor hardening.
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post #2 of 15 (permalink) Old 10-31-2012, 04:45 PM
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I would like to know the answer to this too. Dave63 suggested it to me in another thread, but I haven't had the chance to check it out yet. Anybody using one?
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post #3 of 15 (permalink) Old 10-31-2012, 06:59 PM
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stick with the regular,steel rotary valve

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post #4 of 15 (permalink) Old 11-01-2012, 03:33 PM Thread Starter
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No other takers so that's good news. No arguing over who's got the best answer lol, steel again it is! Thanks.
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post #5 of 15 (permalink) Old 11-01-2012, 07:59 PM
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Been toying with the idea of putting one in my stroker shovel. From what I've read it seems like it would be more for modified engines. Re: stroked,bored or both.

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post #6 of 15 (permalink) Old 11-01-2012, 10:15 PM
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Quote:
Originally Posted by Softail99fb View Post
Is the S&S reed valve as good as it sounds? I'm thinking about getting one. My steel gear shows some pitting from poor hardening.
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Originally Posted by prodrag1320 View Post
stick with the regular,steel rotary valve
Not trying to steel the thread but since the topic of the Rotary (stock) or reed (aftermarket) valve is up, Why do Harleys have these valves at all? What would happen if harleys didn't have a valve at all and just had an open vent?

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post #7 of 15 (permalink) Old 11-02-2012, 12:37 PM
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the motor wouldnt evacuate the oil out of the lower end properly.i dont use one on my drag motors,but have a electric pump for scavaging the oil from the lower end

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post #8 of 15 (permalink) Old 11-02-2012, 12:38 PM
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Been toying with the idea of putting one in my stroker shovel. From what I've read it seems like it would be more for modified engines. Re: stroked,bored or both.

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a big motor would be better with a timed breather hole in the case than the reed valve

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post #9 of 15 (permalink) Old 11-02-2012, 04:55 PM
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Mine is timed. Still have oil blowing out breather tube at high rpm. Not alot. The reed valve sounds like a good idea. Worked great on my old two stroke dirt bike for performance. Same principle. Open at vacuum, close with pressure.

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2010 FLTRX Wimmer Better Sucker,Stage 1,Xied's,no cat,fatstick with open end cap. 2004 Dyna Lowrider Harley Heavy Breather,Stage 1,Screaming Eagle mufflers.1996 FXDS-CONV S&S E.Screaming Eagle ignition,V&H Short shots. 1978 Strokershovel Lowrider 100 inches. 1974 Suzuki GT750 Lemans (Water Buffalo)
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post #10 of 15 (permalink) Old 11-02-2012, 08:48 PM
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the motor wouldnt evacuate the oil out of the lower end properly.i dont use one on my drag motors,but have a electric pump for scavaging the oil from the lower end
Thank you prodrag.

Jonathan

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