Hi Rafeek,
I was thinking about doing that.
I bought the cub as is and fixed up dings and hangar rash.
I don't really want to do major mods. I just want to fly it.
Everything including the 6.6Life receiver battery are as much forward
as possible. Other than shoving it on top of the fuel tank. (I don't like that)
I had a quick look/comparison on engine choices for 1/4 scale cubs and
found that some guys are running Zenoah 26cc gas engines in their
Hangar 9 Cubs.
My Profi 76 2 stroke weighs in at 580g
Saito FA 100 approx. 823g would only needed to add 267g to balance
OS FS-120S-E approx. 944g ( just about a perfect weight match) and loooots of power
OS 160 approx. 1200g
Zenoah g26 approx. 1689g
That's 1100g more weight in the front......yikes
but we're talking about center of gravity here to balance.
So weight added to the front to balance would depend on engine choice.
When I have a chance I'll do a dry weight measure, see how heavy
she is in total and post results.
Andreas
Happy building & flying