Need some help identifing a 4S engine. - RC Groups
Thread Tools
Apr 29, 2007, 09:39 PM
War Eagle!
sneasle's Avatar
Help!

Need some help identifing a 4S engine.


It is a .91 Four stroke, that is all I know about it. Looks like an OS, Magnum, or TT to me. Might be a saito as well, but I don't think that is a style Saito has used recently.

Any ideas?

[image]http://i2.ebayimg.com/07/i/000/9a/8f/a252_3.JPG[/image]
Sign up now
to remove ads between posts
Apr 29, 2007, 10:06 PM
S.A.D. member
ivanc's Avatar
Quote:
Originally Posted by sneasle
It is a .91 Four stroke, that is all I know about it. Looks like an OS, Magnum, or TT to me. Might be a saito as well, but I don't think that is a style Saito has used recently.

Any ideas?

Looks a lot like a Thunder Tiger F-91S 4-Stroke

Ivan
Apr 29, 2007, 10:29 PM
War Eagle!
sneasle's Avatar
Quote:
Originally Posted by ivanc
Looks a lot like a Thunder Tiger F-91S 4-Stroke

Ivan
Possibly, All three look about the same.. we shall see when it gets here.
Apr 29, 2007, 11:26 PM
Young gun
newguy2005's Avatar
looks to me like a TT because my magnum .91 4s has a double silver spacer that butts up against the spinner backplate. that one only has a single and that TT has a single so my best bet is the TT
Apr 30, 2007, 01:50 PM
S.A.D. member
ivanc's Avatar
Quote:
Originally Posted by sneasle
Possibly, All three look about the same.. we shall see when it gets here.
No, they don't. Different rocker valve cover, different side plate on the camshaft - see the different bolting pattern on OS and Magnum compared to the TT. Also they use different prop driver.

Here are pics of Magnum and OS.

Ivan
Apr 30, 2007, 09:04 PM
War Eagle!
sneasle's Avatar
Got confirmation that it was a TT. Thanks guys.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Need some help identifing retracts and more Shroomer Fuel Plane Talk 12 Nov 26, 2004 10:58 PM
Need some help with my latest plane wim5150 Electric Plane Talk 2 Aug 08, 2001 04:29 AM
A-10 glitching issue...need some help!!! David Hogue Electric Ducted Fan Jet Talk 5 Aug 07, 2001 09:51 PM
Upgraded Zagi 400X.....now I need some help. futurvet Foamies (Kits) 1 Jun 06, 2001 09:19 PM
need some help finishing my mini ifo. Jeremy_D Parkflyers 4 May 28, 2001 05:49 PM