If the Giles that you selected is their 1.40 rated model, I'd forget about the smaller displacement engines. They had two versions of this a while back. One was rated for a 1.20 and the other was rated at 1.40.

I'd have dropped the OS 1.20 pumper and kept the YS 1.10 in the line up for a 1.20 sized model. The 1.10 is more powerful than the OS. Central Hobbies sells the YS's much cheaper than some of the other places they are sold. I like the OS 1.20 pumper, but powerful, it isn't.

I would be tempted to buy an OS 1.20AX or 1.60FX two-stroke and fit it with a Cline type of regulator. You can burn 5% nitro fuel and produce the same power as all of the four-strokes that you have mentioned. Granted, throttle response won't be as razor-sharp as the YS engines burning 30% nitro, but it will only cost slightly more than half of the YS 1.40.

If you are going Saito, forget the 1.50. For just a few dollars more I'd get the 1.80, but also with a Cline type of regulator.

I just sold a NIB 1.40 Sport on eBay. It was like hanging a dead fish in the air over the side of a boat. Bids were coming in nearly as fast as emails of guys trying to get me to end the bidding early, or to ship it overseas for someone. It is a popular engine.

To me, the only two real choices are the YS 1.40 and the Saito 1.80. But that is just me. Good luck making your decision.


Ed Cregger