what engine ?
01-05-2007, 01:48 PM
#1
Junior Member
Thread Starter
Join Date: Jan 2007
Location: , CO
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
what engine ?
just currently got my first prop jet. and i got engines laying around and was wondering which one would be the faster of the two.
1st engine: Magnum XLS 46 [link]http://hobbypeople.net/gallery/210756.asp[/link]
2nd engine: SK 50 Engine .50
specs:
8.5 disp.
23.64mm Bore
19.6 stroke
1.5-16500 output ( H.P/r.p.m)
2500-12000 practical r.p.m
recommended prop 11x6
sorry its a dumb question i know. but i dont know nothing about the motors. just fly em.. buddy does all the work
both engines are stock and the plane is a used S.A f-20 tigershark.
1st engine: Magnum XLS 46 [link]http://hobbypeople.net/gallery/210756.asp[/link]
2nd engine: SK 50 Engine .50
specs:
8.5 disp.
23.64mm Bore
19.6 stroke
1.5-16500 output ( H.P/r.p.m)
2500-12000 practical r.p.m
recommended prop 11x6
sorry its a dumb question i know. but i dont know nothing about the motors. just fly em.. buddy does all the work
both engines are stock and the plane is a used S.A f-20 tigershark.
01-05-2007, 01:55 PM
#2
My Feedback: (19)
Join Date: Apr 2002
Location: Cleveland,
OH
Posts: 5,576
Likes: 0
Received 0 Likes
on
0 Posts
RE: what engine ?
Use the Magnum 46
Prop with a 9x7 or a regular 10x6 prop to start with.
If you enjoy the combination and want a bit more speed, buy a jett-stream or ultra-thrust muffler and bolt it to the engine - instant 1000 rpm boost (+) - no hassles, just bolt it on and go. Keep the same prop sizes.
The SK engines i am aware of have shown a tendency not to run well at higher rpms (which is why they suggest the bigger prop)
Prop with a 9x7 or a regular 10x6 prop to start with.
If you enjoy the combination and want a bit more speed, buy a jett-stream or ultra-thrust muffler and bolt it to the engine - instant 1000 rpm boost (+) - no hassles, just bolt it on and go. Keep the same prop sizes.
The SK engines i am aware of have shown a tendency not to run well at higher rpms (which is why they suggest the bigger prop)
....Welcome to RCU....[sm=thumbup.gif]
01-05-2007, 07:20 PM
#5
Senior Member
My Feedback: (50)
Join Date: Mar 2002
Location: Mira Mesa, CA
Posts: 5,405
Likes: 0
Received 0 Likes
on
0 Posts
RE: what engine ?
I am a big fan of Jettstream and UT mufflers but price wise you might just get a Tower muffler $14- and get 600+ RPMS. 
Not as good as the Other 2 but more affordable.
From what I understand the SK is a bit torquey so another vote for the Mag.
Welcome aboard and keep us posted!
Not as good as the Other 2 but more affordable.From what I understand the SK is a bit torquey so another vote for the Mag.
Welcome aboard and keep us posted!
