Tony Campbell Posted May 11, 2007 Share Posted May 11, 2007 Bought a showtime 90 a short while ago and got an SC91 2 stroke to power it. The motor, doesn't exactly give it 'sparkling' performance, so, a motor change is in order.My dilemma is...... 120 fourstroke or mvvs 26cc petrol??I've never had a petrol motor as yet, so the change-over is making me wonder whether to go that route or not. I'm used to glow motors so the 120 fourstroke wouldn't be any problem to fit and operate.But..... I like the idea of cheap fuel and a motor that will cost me the equivalent of a middle of the road fourstroke.Ground clearance for the prop isn't a problem either way, and, the added one pound of weight wouldn't bother me too much as the plane is a bit of a floater anyway.HELP!!!!!!!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
Tony Campbell Posted May 11, 2007 Author Share Posted May 11, 2007 Actually, I just did a quick check on fourstroke weights, and, they all average around 1kg (thats probably minus the silencer too). The MVVS, all up including ignition, battery, and silencer comes to around 1.150kg. Thats only 150g difference. Add to that, petrol engines use much less fuel so need a smaller tank (around 10 oz for the 26 mvvs) the weight difference is virtually nil. Lokks like I'm answering this one myself, and twisting my own arm.What do you all think? Have I missed anything?? Quote Link to comment Share on other sites More sharing options...
Lee Waples Posted May 14, 2007 Share Posted May 14, 2007 If you want to get the best from this model the YS 1.10 is the way to go, although the saito 1.25 would be good also. Quote Link to comment Share on other sites More sharing options...
Tony Campbell Posted May 14, 2007 Author Share Posted May 14, 2007 I had considered the saito 125, especially considering the price that some of the outlets have them at the moment. The YS110, just a bit pricey at the moment for me. Would be great though!! Quote Link to comment Share on other sites More sharing options...
Chris Dickens Posted May 14, 2007 Share Posted May 14, 2007 I agree with Lee a 4 stroke will give a much better power delivery (electric is even better) ist choice the YS110 2nd best Saito 125. Quote Link to comment Share on other sites More sharing options...
Tony Campbell Posted May 15, 2007 Author Share Posted May 15, 2007 Thanks guys, I think I'll go for the saito 125, looks like good value. Quote Link to comment Share on other sites More sharing options...
Nick Holmes 2 Posted November 30, 2008 Share Posted November 30, 2008 Hi guys, Just building my showtime 90 4D, just got one in time before they stopped building them. Did you find the wing fit at the trailing edge to the fuse left a gap? Thanks Nick Quote Link to comment Share on other sites More sharing options...
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