lipo (2) 2s 5000mah battery place ment

[brad65]

Hey guys, I got my replacement sv27 in yesterday do to cracked hull hehe. I striped the boat to bare hull and fiberglass resined the side with some extra cloth. Seems to be much stronger. Anyway I'm about to start coming up with a flood chamber but before I do so I was wonder where is the sweet spot for two 2s lipos around 5000mah. Can anyone post some pics for me. thanks guys

[Fruity]

Brad,
don't worry about pics, all setups will vary, so do the battery weights, just try and set your centre of gravity at about 8 1/2 to 9 inches from the transom and you will be pretty close.

EDIT: Have a look at this thread for a couple of pics of mine - http://forums.offshoreelectrics.com/...ead.php?t=6858

Thanks...Tim.

[brad65]

sorry for the stupid question but transom is the rear of the boat? Also I've read 7 1/2 wow I guess eveyone like different setups. Will more weight up front cg help the boat to get on plane faster?

[Fruity]

Brad,
Yep, the transom is the back of the hull. Just draw a small mark on your boat about 8 inches from the transom, then balance it on your fingers whilst you set up the battery position. You can then estimate 1/2 inch or so either way of your mark.

Make sure your tabs are neutral or slightly down, about 1mm, I find with the tabs down it actually helps lift the rear of the boat a little and goes a little better.

Try Tabs down, 8 inch COG, strut neutral (or timy bit up) and you will have a good place to start your fine tuning.

Only make one change at a time, then run again.

[brad65]

thanks for your help, it went well and drove good, just need more speed it seems slow.

[Fruity]

Good start,
now each run, lift the tabs a tiny amount and play with your battery placement until you have a nice stable but light running boat.

I would purchase a X642 prop as well. Your set up with X642 should run 35 to 38 mph, if you can warrant the cost a small GPS is great for checking the changes you have made in your set-up.

I have mine at 38mph, and I don't think I can get a lot more with the current set-up so I have just ordered a couple of 3S lipo's to try 6S, now it should boogie. I just need a couple of smaller props to start out on with the increased rev's


Enjoy....Tim.

[brad65]

Humm 6s that's 22.2v right. I'm asumming that's not with the stock esc is it?

[Fruity]

Nah, I've upgraded the ESC to a 100 amp unit from a Heli that I picked up at the ricght price then watercooled. It is rated to 6S.

Cheers..Tim.