What size prop to break-in new Saito 91?
11-30-2002, 06:22 AM
#1
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What size prop to break-in new Saito 91?
The directions list sport props as: 12x8, 13x7, 13x8, 14x6, 14x8.
What should I use for break-in?
Oh, and what nitro % should I use.
Thanks alot guys!
What should I use for break-in?
Oh, and what nitro % should I use.
Thanks alot guys!
11-30-2002, 06:54 AM
#2
Saito .91 prop size
I have this engine and used a 14 x 6 APC for break in. My engine loves the Wildcat 20% nitro/20% oil (YS blend). Fully run in, my engine tachs at 10,300 peak and I fly at about 9900.
This season I switched to a 15 x 6 APC on my GP Extra ARF and peak around 9100 and fly at 8700 rpm.
This is a great engine- once it is fully run in.
I wouldn't put it in the air untill you have put at least 2/3 of gallon through it on the bench (8 - 10 runs) EXACTLY AS THE SAITO MANUAL TELLS YOU. After that, once you set the needles and the COLD valve lash, you won't have to fool with the mixture very much. My engine runs fairly rich in the mid range, which seems to be the norm, but doesn't seem to hurt anything.
Mark D
This season I switched to a 15 x 6 APC on my GP Extra ARF and peak around 9100 and fly at 8700 rpm.
This is a great engine- once it is fully run in.
I wouldn't put it in the air untill you have put at least 2/3 of gallon through it on the bench (8 - 10 runs) EXACTLY AS THE SAITO MANUAL TELLS YOU. After that, once you set the needles and the COLD valve lash, you won't have to fool with the mixture very much. My engine runs fairly rich in the mid range, which seems to be the norm, but doesn't seem to hurt anything.
Mark D
11-30-2002, 11:58 PM
#4
prop for Saito .91
The best is when you pull off the last of the power on final approach. Mine gives just you just a little bit of rumble just for an instant- sorta like a Harley with wings!!
Enjoy,
MarkD
Enjoy,
MarkD
