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Which engine for a cermark f-20?!?!?!?!

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Old 05-08-2003, 01:12 AM
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rap1404
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Default Which engine for a cermark f-20?!?!?!?!

hello well my problem is that i bought this f-20 with an enya 60 heli engine which makes it go around 110-120 with a 11/6 turnin about 17000rpm so im trying to make it go faster!! so my friends tell me to go with a tower 75 but ive been told that if i want speed i need rpm so another option could be a 70 heli or a 91 heli and if i could find one a ducted fan engine.
which is a better choice?? i think the 91 heli could be the one

thanks in advance

reinaldo
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Old 05-08-2003, 03:05 AM
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FlooredCOBRA
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Default Which engine for a cermark f-20?!?!?!?!

I did a search on the tower engines a while back when looking to buy. I heard they have problems leaking and who you go to shut it down with closing carb they kee running. I never owned one but heard many people mention this on this forum.

With the 91 you could use a nice meaty prop for speed. Think that would be ticket
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Old 05-08-2003, 02:10 PM
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Flyboy Dave
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Default Cermark F-20....

I have one, and two of my Buds do also. I run the T.H.
.75, one of the guys uses a magnum .75, and the other
a Jett .90. The Jett is the fastest. If you want to go
faster....you'll have to use the Jett, a Rossi .91 (piped),
or an O.S. .91 DF (piped).

Mine had flutter issues when I really got it cranking, but
I got it sorted out. The other two planes did not.

The Tower .75 carb needs to be twisted, and firmly
seated on the o-ring before it is cinched down, and It
will work fine. It as a high quality carb.

Dave.
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Old 05-08-2003, 02:18 PM
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Flyboy Dave
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Default Which engine for a cermark f-20?!?!?!?!

The Rossi .91 lends itself to a side mount, low pipe
configuration....and has in-flight mixture control...
It is a real BRUTE !!!
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Old 05-08-2003, 02:35 PM
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Flyboy Dave
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Default But for all-out....

....maxed to the max....I don't know of anything that
would out-crank the O.S. .91 DFV motor....
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Old 05-08-2003, 09:28 PM
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rap1404
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Default engines

hey dave interested is selling one of those engines??

reinaldo
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Old 05-09-2003, 04:22 AM
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Flyboy Dave
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Default Not really....

....but i know where there's an O.S.....

....will send PM.
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