sv27 my first run...few q's

**leeuk** · 10-09-2011, 04:39 PM

heres the link to a video my friend made for me of my sv27

http://www.youtube.com/watch?v=9fyzMzlFaUs&feature=player_embedded

**Duster19** · 10-10-2011, 01:37 AM

Cool video... and I look forward to watching our builds.

I'm no PRO, but my boat running 6 cell Ni-mhs and an aftermarket prop Octura 440/3 got to plane much faster. I would go in that direction first.

Dave

**Diesel6401** · 10-10-2011, 03:44 AM

The slow to plane is normal with the stock prop. If you don't want to buy a metal prop and do the sharping and balancing grab yourself a CF42 and CF45 from here at OSE. Good quick upgrade over the stock prop. If you want a good metal prop grab a grim 42x55 make sure you sharpen and balance it or buy it sharpened and balanced. The CF props are a good quick and cheap upgrade over the stock.

http://www.offshoreelectrics.com/pro...t=Carbon+Props

http://www.offshoreelectrics.com/pro...od=dh-aqub9725 don't run this as is.. Make sure you get it S&B.

Old SV vids

http://www.youtube.com/watch?v=_t1ksDActBo

http://www.youtube.com/watch?v=6JSwz6hiRwc

**leeuk** · 10-10-2011, 04:05 AM

im glad you've sed that about stock prop as thats what i thought first,i know its def not my lipos not giving enough power as there brand new,fully balanced 30-40c 5000mah ones so plenty there,was really happy temps wise as both the esc and lipos didnt go much warmer than body temperature,altho the motor did get a little warm it wasnt dangerously but im gona look into getting the upgraded water jacket from either ose or kintec and file out the rudder pick up just to help cooling as i cudnt really see any water coming from the outlet when running.

Diesel,is the cf40 still ok over stock as ive seen people mention the cf42 and 45 more often than the cf40,and are these both ok on stock motor?
im running the seaking 60 esc and im quite impresed with it so far,easy to program with program card and a good fairly cheap upgrade over stock esc with little more scope on ampage draw so i felt safer in the water.

Duster,how you getting on with your build buddy?

**Diesel6401** · 10-10-2011, 04:16 AM

Originally posted by leeuk

im glad you've sed that about stock prop as thats what i thought first,i know its def not my lipos not giving enough power as there brand new,fully balanced 30-40c 5000mah ones so plenty there,was really happy temps wise as both the esc and lipos didnt go much warmer than body temperature,altho the motor did get a little warm it wasnt dangerously but im gona look into getting the upgraded water jacket from either ose or kintec and file out the rudder pick up just to help cooling as i cudnt really see any water coming from the outlet when running.

Diesel,is the cf40 still ok over stock as ive seen people mention the cf42 and 45 more often than the cf40,and are these both ok on stock motor?
im running the seaking 60 esc and im quite impresed with it so far,easy to program with program card and a good fairly cheap upgrade over stock esc with little more scope on ampage draw so i felt safer in the water.

Duster,how you getting on with your build buddy?

Yea the CF40 is ok over stock, but the CF42 and CF45 have better results. The CF40,CF42 and CF45 are all just fine with the stock motor. I even ran a CF48 with the stock motor and esc, but I really don't recommend it that much. Stick with the 42 and/or 45 and you'll be golden.

**leeuk** · 10-10-2011, 06:01 AM

sweet,thanks diesel,was hoping you or wizard would notice my thread and help me out,like ive sed before..im new to fe boats so this is a big learning curve for me so any help is great and very much appreciated.

another quick question,when the boat is on plane..how wet should it be? at a guess i would say mine was running nearly more than half the boat length in the water but after seeing your vids it looks like your running 2-3 inch?

**siberianhusky** · 10-10-2011, 06:17 AM

A few feet of cavitation is normal on take off, if mine doesn't cavitate it shoots out of the water and rolls right over!
It's also normal for them not to turn left as well as they do right. In a right turn the prop is helping pull the boat around, going left it is resisting turning left.
Most race boats are not set up to turn left at all.
The trim tabs and strut on mine are dead level with the bottom of the hull, CG between 27 and 30% from the transom, in flat water I move the packs to the 27% mark.
Mine also runs a little looser and faster on the water if there are some ripples on the surface.
My favorite all around prop on mine is an octura x440/3, most runs don't end up with a retrieve with this prop, in flat water or when running alone I can run a bigger/ faster prop, when there are 4 other boats on the course though the water gets pretty chopped up and all out speed is not really what finishes a race in those conditions. I'll give up some top end speed for the improved handling.

**leeuk** · 10-10-2011, 06:33 AM

havent really read up on cavitation but at a guess.. is it were the props spinning and sort of tries to push the rear of the boat downwards slightly until it gets momentum to drive forward??

i was running in flat water yesterday and was great,like ive sed,if it could get on plane easier then id feel alot happier..i didnt like how it was draggin it ass in the water but wasnt sure if this was normal for stock and was worried that because of this,it would draw more amps

**leeuk** · 10-10-2011, 06:44 AM

also i would like a better water jacket,but theres a couple to choose...i like the one listed on kintec as the sv27R super-cooler..would this fit the stock sv27 1500 motor?

**siberianhusky** · 10-10-2011, 07:20 AM

Yep cavitation is when the prop is spinning but the boat is moving really slow and the transom kind of sucks down, then all of a sudden it hooks up and goes.
The 540s super cooler water jacket will fit.
The UL-1/Motley Crew and SV27r have a slightly different diameter than the 1500 blue can motor, The Proboat size coolers are also the wrong size for that motor. Just tried a SV cooler on a Proboat Geico motor and it's too small.
It's the cooler right under the zip ties, 3rd thing down on the page should fit, even have a picture of it on the blue can motor.

Loading...

http://kintecracing.com/Water_Cooling_BQFJ.html

It takes a bit of trial and error to get it set up, change one thing at a time and see what difference that change makes, for better or worse, bring it in and try something else. I use a small digital angle finder to set up my boats, makes it very easy to get back to a set up that worked really well. When you change props you have to kind of start over again as the lift and speed really changes how the boat handles.
I generally leave my trim tabs set at 0* to the bottom of the hull and change the stinger by 1 degree at a time, either positive or negative depending on what the nose of the boat is doing. Unless it is really windy and rough I never have my CG more than 30%, I find it spins out in full speed turns if the CG is too far forwards. The nose digs in and the boat whips around and usually flips!

**leeuk** · 10-10-2011, 07:34 AM

will prob order the 540s one then but it doesnt have the add to cart button on so im guessing there out of stock as jan told me last time that if the add to cart button isnt visible then they prob dont have them in stock

**leeuk** · 10-10-2011, 08:07 AM

just emailed jan and gt an almost instant reply saying there out of the supercoolers and maybe a while til they get ome made...damn

**siberianhusky** · 10-10-2011, 01:53 PM

http://www.offshoreelectrics.com/pro...prod=ose-80030
here you go, from the Offshore electric store, think it's in stock. Steve is also a great guy to deal with, fast shipping turn around.
I have the older black version on mine.

**leeuk** · 10-11-2011, 02:51 AM

Thanks buddy,will def look into that.

sv27 my first run...few q's

sv27 my first run...few q's

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