Neil what the effect of the stroke length?

More then I can explain ! LOL

but in a nutshell a short stroke engine can typically handle higher RPM's easier...

+1..I tested an 086 on a mod B5...it make very high peak HP, but took a pretty big hit in the low end, as well peak power was pushed up higher in the RPM range....

There's a new KING in town! OS FTW! Looks great Neal! Awesome comparison! You can really see the smooth, not at all peaky OS powerband that I have come to love so well. I like OS....... a lot!

The OS is a killer mill no doubt ! from running them both I can say they are very competitive with each other, and each one has its own strengths over the other... The B5 is punchier, which I personally prefer..its still very smooth but it has more snap in the trigger then the OS does...The OS is very smooth and little less responsive on the trigger..tho its not lagging or anything like that, but its just not quite as crisp on trigger as the B5... The B5 appears to be getting a little better runtimes, but we are running the B5 with a little less crank timing then the OS , as well we were running the OS on a 8 mm venturi and the B5 on a 7mm venturi....On the dyno I ran the OS on a 8 mm and the B5 on a 7 mm....Both engines tune very easy, they both rip and either one would make me happy....So whichever one floats your boat, you really can't go wrong with either IMO

The only difference being hundreds of dollars $$$$$$$$$$$$$$$$$$$ (and a manual printed in English)

Makes the decision pretty easy for me!

I have 3 xz speed engines that all came from hong kong (I shared 1 with a buddy of mine) and they all came with this manual. I have purchased 5 WC II speed engines in the past 18 months and they all came with english manuals. Mis-information breeds ignorance which translates into pandaemonium. >>>>









Sooo what am I missing? (sorry Kris but you are killing me, BTW I got something for you this winter Its a good one )

By the way, Frank likes OS also. Let's combine him and Jammin to Frankrazy

LMAOROTF
and that is true I do like OS engines.

LMAO!

+1 Frank! All OS Manuals are printed in English. Now that I think about it, does the Boo5 even come with a manual?? Mine didn't.

LMAO!!

Nope...no manual needed...just a simple engine for us simple folk who simply want to go fast!! And no doubt, you guys certainly like your OS engines!!

Frankie, if you've got something special brewing then I'm betting you've been spending $$$ again...can't wait to find out...is it bigger than a breadbox??

No manual with the 55 you are right. That's one thing I can say about Neal. No bs just the facts. But I still like os engines.

Just a little bit bigger than a bread box. Should be here soon. Might not work out but ohhh if it does I'll need my own class.

I just want to know why you need so many engines in such a short period of time? Do they only last 3 gallons??????????

I really want 4 speeds. 1 for the buggy 1 for the truly and 2 fir backup. That's jus thow I roll. I started Out with 1 and then it got wore because I like to race so I bought 2 more and then I wanted 2 new speeds for the nitro challenge. If you knew me then you would understand. That's how I roll. I sold 3 of them and blew one up and still have one. They still had tons of life in them.

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