I feel the need for buying another engine Somehow, they intrigue me and I want to own more! (this hobby is addictive...)
My next plane will be the SIG Somethin Extra, so I'm looking for an engine for that project.

I kind of want a 61 size engine since I have a 46 and a 52 by now, but I guess that would be way to much power and nose heavy for the SE?
I put together this list of possible engines (Tower and Horizon). I see a lot of people like the Thunder Tiger. OS seems to prize themselves out of the market (or, at least my pocketbook). Comments/suggestions??

Thanks,

Tycho

SuperTigre G61 Sport ABC Engine. 26.7oz 99.99

O.S. .61 FX Non-Ringed w/Muffler 23.6 oz 159.99

Thunder Tiger GP .61 ABC w/Muffler 26.75 84.99

GMS .61 BB Ringed Remote Needle Valve w/Muffler 26oz 79.99

Tower Hobbies .75 Ball Bearing ABC Schnuerle & Muffler 23.0 oz 94.99

Evolution .61NT 25.13 oz 119.99

================================================== ===========

Tower Hobbies .46 Ball Bearing ABC Schnuerle & Muffler 16.9 oz 79.99

SuperTigre GS-45 ABC w/Muffler 18.5oz 69.99

O.S. .46 AX ABL w/Muffler 17.2oz 114.99

GMS .47 ABC BB Remote Needle Valve w/Muffler 16.7oz 69.99

Thunder Tiger Pro .46 BB ABC w/Muffler 17.01oz 79.99

Magnum XLS-52 BB/ABC/FSR 17.oz 99.99

Magnum XLS-46 BB ABC FSR 16.oz 89.99

Evolution .46NT 13.10 oz(w/o m) 89.99

Better get a K&B Twister 61. Weighs the same as your 46 but has 1.8 hp! And they are about 100$!
http://www.modelengine.com/61/6170b.htm

You could add the LEO .61 Pro, 23.6 oz $139 CDN (taxes incl.) & the LEO .46 Pro, 16.7 oz, $99.99 CDN (taxes incl.)

Whom sells LEO engines?

I also did a search on the K&B engines. Seems like a good engine. Now if I only had something old to trade in I could get $20 off the price.

-tycho

Try an Irvine 53 or an MVVS 49 with a tuned muffler. The MVVS will get that plane right with the program. A 61 is overkill on this plane. I would use a 50 ish engine on it.

Mark Shuman

Is a four stroke out of the question for you or your budget? You didn't list any. The Saito .72/.82 will out fly all your listed engines. IMHO anyway



David

Had an Irvine 53 in my 1st SE, and it's just waiting to go into the replacement which is on the board right now. (it's predecessor had a sad demise).

The Irvine is a very good match for the SE.

If you want a 61 I can recommend the Thunder Tiger, but go for the PRO series not the GP.

Terry

Tychoc
I know what you mean about being ready for a larger motor. I have many 40ish size motors and went to a TT GP .61. The reason is because I have a 6 year old TT GP .42 and it is probably the most dependable engine I have. Always starts easy and idles good. That is why I went with the TT on the larger motor. It, too runs excellent and idles down good. I know that they are cheap ABC engines but if I get 6 years of use out of them and it dies I feel that I well got my money's worthout of it. I also recently acquired a O.S. .91 Surpass 4 stroke with pump and don't yet know how well it well do --plenty of torque. I'm putting it on a Super Chipmunk, not in the air yet, but close. But the TT .61 is quite an engine. Rated at 2 hp and mine will pull a Razzle straight up out of sight, but I'm running a 12.25 X3.75 prop. Just my 2 cents worth.
RWCherry

The TT61 is very reliable and is powerful enough. Runs very smooth too!

I got an OS FS70 Surpass 2 for my SE.

Couldn't ask for a better engine.

xchangx: That's nice to read since I have ordered one of those , gonna be my first fourstroke.

Tycho,
Buy a four stroke. Once you've owned one, you'll probably never want another two stroke, so start now.
Dennis-

I know it's not on your list but how about an OS 46AX for around $114.00. I have one with an APC 11X7 and it flys the SSE very well and if I want to do more 3D work then I change the prop out to an APC 12.25X3.75 and a Dubro prop nut instead of a spinner for fast changeout of the prop.

BTW... With this combo I needed no weight and the plane balanced right on the spar, inverted. Just mount the engine where suggested and keep the battery (mine is an 1100MaH JR extra) right in back of the fuel tank and the reciever right between the battery and servo tray.

Another guy I know has the Irvine 53 and he started with a 12x7 prop which was to much for that engine so I gave him a 11X7 and now he is sold on the prop for that engine/plane combo. BTW.. He needed to but his battery behind the servo tray (same battery as mine) with the Irvine mounted in his.

tychoc, for info on LEO engines, contact Lorne Mackie, the distributor, at --- [email protected]

Lots of good info - thanks!!

Several brought up the 4-stroke. Yes, I really would like a Saito 82, but I'm having a hard time justifying the cost. Well, let me rephrase that. I'm having a hard time justifying the cost to my wife[]

Seriously though, DBCherry, you mention that once I have a 4-stroke I will never want another 2-stroke. Can you give me some more justifications for why that is? I mean, I can get a decent 2-stroke for less than $100, but a 4-stroke is going to cost at least twice

Good news is that I still have lots of time before I commit. How good are the Magnum 4-strokes by the way? They seem a little cheaper or is it you get what you pay for?

Thanks,

Tycho

I'm not DB but the first 2 things that come to my mind is fuel and prop size

For starters, I have a Saito 56 that is now mounted on my 4* 40. This plane had an OS46AX on it at the beginning. With the OS I was getting about 12 minute flights, with the Saito I am getting close to 15 minutes. In both cases I was not running full throttle the whole flight plus it's the same tank and fuel (approx. 9oz tank and 15% nitro/20% Oil Byrons Fuel)

The other thing is you can turn bigger props with the 4-stroke engines. The above mentioned plane flew great on the OS with an APC 11x7 and with the Saito I am turning an APC 12X6 and getting a little slower speed but much more pull for aerobatics.

If speed is what you are after, a 2-stroke may be what you want. If stump pulling torque [&:] is what you want then definitely a 4-stroke. Other than 2 Saitos (56 and 1.20) and 1 OS91 FS II, I use YS engines myself (Own 4 right now). Way more expensive, but gobs of power. The plane in my avatar (CG Ultimate) started life with a Saito 1.20 and now runs a YS 1.10FZ, same HP rating (I know, I know) but tons more power and pull [sm=spinnyeyes.gif].

You can pull stumps with a 2-stroke as well, if it is correctly propped. A 12-4 on the AX (or similar 2-stroke) will pull to the moon & will be just as fast in level flight as the 4-stroke turning the 12-6, because the 2-stroke will turn that 12-4 considerably faster. The fuel thing is real enough, & so is the 4-stroke sound, but the price premium & greater care necessary with 4-strokes are significant negative factors.

Tychoc-

Two other points about 4-strokes: 1) They seem to burn more of the oil, so they don't leave as big a mess on your plane, and 2) They sound COOL!!! They are much quieter and sound a lot more realistic.

-Scott

Ok, so a 4-stroke sounds interesting. Here's a list of some possible 4-strokes:

Magnum XL-70RFS 4-Stroke 21.2 oz 169.99
Magnum XL-61RFS 4-Stroke 15.5oz 149.99
Thunder Tiger F-54S 14.8 $169.99
Thunder Tiger F91S 26.2 $189.99
Saito 82 AAC w/Muffler 17.6 oz $254.99
Saito 72 AAC w/Muffler 16.5787621 $224.99

Now, the Magnum XL-70 has an ok price tag. Any reason for picking a more expensive Saito for the SE?
Would the XL-70 be a good match for the SIG SE?

Thanx,

tycho

I don't have any experience with Magnum, but I own a Saito 91, which I love. As far as I know, the Magnums run fine and are basically OS clones. You really answered the question yourself when you listed the weights in your post. The Magnum 70 weighs 4 ounces more than the Saito 82 and 5 oz more than the Saito 72. Saitos are generally lighter than other 4strokes of similar displacement and may have a little higher quality than Magnum. BTW, you ought to be able to find the Saito 82 for less than $254.

I am strongly considering a Magnum 70FS for my next engine, so I'll be interested to see what others say.

-Scott

I have a Magnum 52 four stroke and it runs great. Has better than 200 flights on it without anything other than a minor valve adjustment recently. (Took less than 5 minutes at the field.) I also have a Thunder Tiger 54 four stroke, and although it's been a very good engine, I feel it's a bit more cheaply made than the Magnum. Either of these engines can be had for under $150.

I have a YS 91 that has a much power as most 1.20 fours, an OS 70 Supass that I'll keep forever. I just bought a Saito 1.80 that'll go in my new 73" Cap. (By the way, I bought it here on RCU from a well known guy for $250, and I doubt that it has two tanks through it.)

Britbrat,
I see no difference in the care of four strokes over two strokes, and I've run plenty of both, so I don't know what the "significant difference" is that you allude to. I also think that a four stroke has significantly more "stump pulling" torque than a two stroke, unless the two stroke is propped with much less pitch than the four.

Yes, a four stroke uses less fuel than a two, and yes, there's a bit less oily mess with some, but the differences for me are the torque (from their ability to turn bigger props), and the sound, there's just that sound.... [8D]

And so you know tycho, my modelling budget is limited, but I'll buy fewer engines if that's what it takes to stick with four strokes.
Dennis-

I paid $225.00 at the LHS for my Saito .82. Yes it's twice as high as a OS.46. Is it twice the engine? For the way I fly yes. Forget the sound and the fuel consumption. When your 12" off the ground and you throw the left stick to the top.....The Saito is gone. No questions asked. It's hard to describe to people that have only run two strokes. I know because I had flown 15 years before I got my first one. I am not all four stroke. I think a good two stroke still has a place in the right application. However for 3D and hovering and Instant power the 4C can't be beat.

David

if your budget allows, get a ys 63. weighs less than most 70 four strokes but has more power than most of them. all ys engines seem to be that way.

Yup, good posts here... The 4 strokes ARE addictive but I still prefer 2 strokes in most of my stuff- The Saito-72/82 and the YS-63 are incredible engines, but pricey-

The TT Pro-46 is IMHO the best value for 2 strokes under $100- and performs at least as good as the OS-46FX, but use the Tower Hobbies muffler for $14 and get 500-1,000 rpms over the stock muffler

The next step up would be the Irvine-53 which has a NOTICEABLE increase in power over the FX,TT Pro-46 etc... A couple other perfect matches for your SE would be the MVVS-49, K&B-48, and the Webra-50GT - The Webra has instant throttle response and is lighter than all others listed, except maybe the Leo... The MVVS is rumored to have awesome throttle response also--(I don't have the MVVS) and the Screamin-48 (K&B) is one of the best kept secrets in this range!

Also, the Tower-75 is an impressive engine if you are going bigger but none of the 60+ size engines would be a good fit in the SE- stay with the 46-52 2 cycle, or 52-82 4 cycle engines for the SE-

My favorite part of the hobby is deciding what engine to get for what plane [X(]

Keep us posted!
james
P.S. I have flown Somethin' Extras with everything from a Magnum-40XL, to the K&B-48, and finally the Irvine-53 (Tower Muffler again) The Magnum flew it fine but no 3D and limited vertical, the K&B seemed close to the Irvine-53 in power and performance, and both had unlimited vertical--- Stay with 12.25x3.75, 12x4 or 11x5 to keep the speed down or the plane could explode!

Lots of good info here. Looks like there are three categoris of engines that I could use for the SE.

I. "Regular" 2-stroke (46) engine for OK performance. Prices are cheap, but not too good for any hoovering and 3D

Thunder Tiger Pro .46 BB ABC w/Muffler 17.01oz 79.99
Magnum XLS-52 BB/ABC/FSR 17.oz 99.99
O.S. .46 AX ABL w/Muffler 17.2oz 114.99

II. Performance 2-stroke for better performance. Prices approaches those of cheaper 4-cycle.

MVVS 49 GFS/R ABC RC w/mini tuned silencer 13.40 oz $149.95
Webra SPD50GT w/TNII Carb & Muffler 11.25 oz $129.99
K&B .48 R/C ABC w/Muffler 19 oz 138.99
Irvine 53 ABC 14.10 £99.99**

III. 4-cycle engine for more torque and instant power for 3D and aerobatics + "the sound"

Magnum XL-70RFS 4-Stroke 21.2 oz 169.99
Thunder Tiger F-54S 14.8 $169.99
Saito 82 AAC w/Muffler 17.6 oz $254.99
Saito 72 AAC w/Muffler 16.57 $224.99
YS .63 FZS 17.9 oz 239.95
O.S. FS-70 II Surpass 22.1 oz 224.99

- The Irvine engine sound nice and I have read very good things about it, but there seems to be no distributor for it in the US.
- A .60 size engine is not a good match for the SE.
- The premium 4-cycle seems to be YS and Saito.

-tycho