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HelicopterAlignT-REX 600N › Trex 600n conversion to 700
07-08-2008 09:48 PM  9 years agoPost 1
SkySurfer

rrApprentice

usa

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Has anyone dropped a OS . 91 into there 600? What parts do i need to make this motor fit.I have a 600n pro that's all pimped out with all metal and i really don't want to blow $3000 on a 700n. Looks like all i need is engine,pipe,105mm tail blades, 720mm rotor blades, TT,and Boom. I fiqure the conversion will cost around $600-$700.

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07-08-2008 09:55 PM  9 years agoPost 2
baddynergy

rrElite Veteran

sierra madre, ca- usa

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It has been done. The older YS91ST is ALMOST a bolt in fit. Minor work on the crank and engine mount is all that is needed. Runs like a bat out of HE!!is what I have heard.

**Unattended children will be givin a shot of espresso and a puppy**

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07-08-2008 10:50 PM  9 years agoPost 3
SkySurfer

rrApprentice

usa

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Today i went to my "LHS" to check out the os. 91. And it looks like the motor mounts and the fan mounts will have a date with MR Drill Press.Im also slapping on a SHO fan for better cooling. But im not sure if the .91 head will fit in the cooling shroud?

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07-08-2008 11:31 PM  9 years agoPost 4
baddynergy

rrElite Veteran

sierra madre, ca- usa

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The OS head needs some major massaging of the fan shroud where the YSST slides right in. And yes the fan hub needs to be drilled.

**Unattended children will be givin a shot of espresso and a puppy**

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07-08-2008 11:35 PM  9 years agoPost 5
Fixit

rrElite Veteran

UK

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All the work has been done for you just follow this thread.

http://runryder.com/helicopter/t395...=600+conversion

Good Luck

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HelicopterAlignT-REX 600N › Trex 600n conversion to 700
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