Looks like ya got your poop together pal. Let us know what you decide.

LOL Beware my friend...
I also wanted a new engine, logged on to Tower to order it and here I sit with a big credit card bill and a looong list of things I thought would be good to have.
Gotta love the easiness and availability of online shopping!

O.S. FS-70 II Surpass
+
Dubro Fuel Can Cap Fittings
O.S. Type F Glow Plug 4-Stroke Medium (3)
Futaba Dual Servo Extension J 6"
Futaba NR4F1500 Reveiver NiCd Flat 4.8V 1500mAh
APC 13x6 Sport Propeller (2)
Dubro Spinner Prop Nut 5/16-24
Hobbico VoltWatch Receiver Battery Monitor (2)
Hobbico 90 Degree Z-Bend Pliers
Dubro Socket Bolt Lock Nut 4-40
Futaba S3004 Standard Ball Bearing Servo
Dubro Snowbird Skis Main Black
Master Airscrew 12x6 3-Blade Propeller (2)
Hobbico LCD Digital Mini-Tachometer
Hobbico After Run Engine Oil 2 oz. (2)
Klotz Benol 2-Stroke Castor Pt
Sullivan Heavy Duty Banana Clips
Hobbico VoltWatch 12V Field Power
Futaba S3001 Servo Standard Ball Bearing (3)
Pacer Z-Poxy 30-Minute 8 oz.
Pacer Z-Poxy 5-Minute 8 oz.
Pacer Zap-A-Gap CA+ 1 oz.
Hobbico Recoil Fuel Tubing 5'
Dave Brown Six-Shooter Fuel Pump Glow

Yikes! Looks like I'm on noodles for the following month!

Why not a O.S. 50SX? I've built 4 SE's and always used .46FXs and wanted a little bit more power. Has anyone got any thoughts on this. I've never seen a SX in action. The price is as much as a .61FX but I'm not gonna go putting my .61FX on my SE!

I agree with Denis on this one for sure.... I only own one 2 stroke and it is on the club trainer!

John

Curious why you left the .61 K&B 6170 off list I or II? Weight (14.25 oz) and HP (1.8) are similar to others in these lists, and HP is better than many of them. Price ($99.99) is in line too.

No other reason than the comments about a .61 size engine was too big, but in this case the K&B 6170 fits in the 50-ish engine class, so you're right - it's still a contender. From the web-site it looks like the $99 price is temporary. Any idea why they're running this special given that the .46 is $139?

-tycho

tychoc-you might want to look at this forum thread currently active in the engine forum-it may answer a few of your questions.
The price reduction may be because they 'might' be going to offer a version of the ringed engine with some of the design mods offered in the abc twist version(more power). Therefore selling some of the abc twist versions to reduce inventory??
http://www.rcuniverse.com/forum/Old_...2275731/tm.htm

i would also reccomend an os 50 sx ringed. they are great engines, i was always impressed with mine. i sold it though to fund my yak..

I did look at it, but at $159.99 it seems a little overpriced compared to the competition?

At just $50 more I could get into a Saito or a YS 4-cycle. I've heard good things about the SX-50 too though.

-tycho