S&S reed valve for 99 Evo - Harley Davidson Forums: Harley Davidson Motorcycle Forum

Softail99fb · 10-31-2012, 04:35 PM

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.

bikedelic · 10-31-2012, 04:45 PM

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?

prodrag1320 · 10-31-2012, 06:59 PM

stick with the regular,steel rotary valve

Softail99fb · 11-01-2012, 03:33 PM

No other takers so that's good news. No arguing over who's got the best answer lol, steel again it is! Thanks.

FritzHD · 11-01-2012, 07:59 PM

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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Jon_Fatboy_P · 11-01-2012, 10:15 PM

Quote:

Originally Posted by Softail99fb

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.

Quote:

Originally Posted by prodrag1320

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?

Jonathan

prodrag1320 · 11-02-2012, 12:37 PM

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

prodrag1320 · 11-02-2012, 12:38 PM

Quote:

Originally Posted by FritzHD

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

FritzHD · 11-02-2012, 04:55 PM

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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Jon_Fatboy_P · 11-02-2012, 08:48 PM

Quote:

Originally Posted by prodrag1320

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