chippedprop

I don't know the answer on the lower resist. compared to other motors.

I'll look at Typhoon...you have to understand that I have other people who test and know much more about motors then myself.....so I weed out the lower crapper motors and use then ones of best value and/or best performance.....best bang for your buck...one that will go for years, not just months.

To some lower qlty. motors aren't important...they want cheap. You do get what you pay for. Testing with watt meters will tell a lot about what is really going on. I view motors and al elec. on the plane as invetment....cause money doesn't grow on trees around my house. I look to see what will last even if crashed.

Yes it will be a more eff. set with lower kv and higher voltage.

You can always go to a smaller cell count on the ammo.

I have used HET before....you can tell a diff. on performance when using the same kv other motor vs. HET.....plus your not spending 50 bucks more on a more exp. motor.

So why 6 cells....most start with 3 then 4 cells and work up ???

rockitboy

I have a Stryker and another Funjet that I have been running the last 2 years. They use the E flight 2700kv motor, a 4 cell 2200mah Zippy and a 6x4 prop. Great setup. These did acually start out with 3 cells and stock Stryker motors. Its time for some real speed! Looks like the Ammo goes on Ebay to help fund a HET motor. You think the stock control horns just glued in will hold up to 6 cell power?

chippedprop

Hmmm...good ? .....I stopped using stock elevons and hardware many years ago. I do know that many still use the same stock parts and push 140- 150 on FJ

Check my youtube site to see what I do to FJ and Strykers

http://www.youtube.com/user/chippedprop49

The current Stryker has been radar speed checked at 130mph on 4 cells

bigdog5332

hey chippedprop i was wondering what you thought of that cheep motor that you were talking about in the stryker area..the 42.99 one..what would you think about it in a fj
thanks

chippedprop

Funny you should ask...

I have started building on a FJ and plan on using the SAPAC 3200kv. should be a freaking rocket.

I just have to work out a couple of possible motor mounting issues, but other then that we should be good to go.

Remember I don't make a stock FJ. It's very streamlined

I have already worked out the up grades from a FJ which I lost in march of 09 at the club field..in heavy woods and zero sign of it. The FJ showing in my video section does not reflect the tweaking. So this one we be sweet.

I will add one more CF tube in the wings just to be sure I don't get flutter issues. I'm guessing I'll be in 145-150 range. The top speed on the Stryker which is propped down was 137

We who fly FJ know that it's MUCH less draggy then a Stryker...and mine is less then a stock FUNJET.
Stay tuned
Cp

bigdog5332

cool..i might have to try it on mine up at 5800ft lol..it would be on a almost stock airframe...i have only done a solid carbon square tub on mine instead of the fiberglass one...also do you think i should add some more cf to the wings and mabey a strip to the elevons

bigdog5332

for my current motor Six Series 2700kv...what would be the max safe amp draw without a heat sink?
thanks

chippedprop

I'll post pics as I build. With the higher speed you have to think about wing and elevon flutter. I'll be added 1 one CF tube parl. to the CF that replace fiberglass, but closer to the trailing edge. I'll add balsa strip to make it easier to attach balsa elevons. I'll make my own thin vert. fins and plug and regroove for the fins...in the same place only slightly closer to the leading edge.

In the current build it may be able to stay together...but I want to make sure...so that's the plan....Oh I always run 1 CF tube thru the nose and all the way to the rear of the plane inside on the floor/battery bay

chippedprop

According to my sources about 60-65 static amps on 4 cells...if you add a heat sink and increase air flow you can go higher.

rockitboy

Can you really push that motor so hard? E flight specs 34 amps as max. I run heatsinks on mine and if I push it a bit at the end of the pack it gets plenty hot. I only pull 39-40 amps. My buddy melted a motor mount on his stryker running 3 cells and a 6x4 prop. He pulls 36 amps. I think he does alot of WOT flying though. This is just my experience with this motor.

bigdog5332

i am pushin 40 through it but i put a master airscrew 4.3x4 on it and at 32 amps it has more thrust than a apc 6x3s at 40amps

sthurman

Has the group came to a consensus for a good 3s 2200 30c setup for the funjet. I have a funjet kit with those batteries waiting to be built, but I want to get a really nice fast 3s setup ?

Thanks

rockitboy

E flight Six series 2700kv, CC Thunderbird 36 esc and an APC 6x4 prop. That worked great for me. Quite a bit faster then a stock Stryker C model. I since put a 4 cell 2200mah and a 45amp Electrifly esc in. Same prop. A bit more speed. Just gotta let it cool down some between speed runs. rockit.

bigdog5332

I would say you go with the arc 28-47-1.5 and a castle creations ice lite 75 or 100 and I am guessing you would probably be around 105-110 on 3s and the u could go 4s later and be around 120-130 depending on ur prop....but on 3s just make sure you keep it at about 55amps max just to be easier on the lipos that are good for 66amps

chippedprop

Ok on the 2700 e flite I would NOT prop over 5.5x4.5 on 4 cells...I would suggest 4.75x4.75....The motor is not the greatest....if you want more then go with a HET of the same or close kv...they are made to take the abuse.

Or go with a 28mm x 47mm ish mm motor ...longer then the e-flite....

You can go with the microDan 2900kv but it HAS to run on a e-flite ESC set at 12hz or the middle switching freq. of the 3 choices
On 4 cells it pulls 54 amps and puts on 700-800 watts. on APC 4.75x4.75...the big benefit is it weighs 1.6 oz vs 3-4 oz of other motors.

Oh speed I ran a Turnigy 2650ma 4 cell battery and had a speed run of over 115mph 4.75x4.75
Cp

HannaDav

flying a stock FJ
15yrs of flying
around $500. to spend
and no I dont know how to set one up for that speed.

bigdog5332

but remember sthurman only wants a 3s setup

n8rloves2fly

My Feedback: (5)

I have 3cell 2200 with an align 3700kv motor I got off ebay for $12 or so flies great I castle 32 or36 ESC the cheap one got a 9min 25sec flight and love this set up! 5X3 prop (i think)

sthurman

Wow that is a GREAT looking funjet !!

sthurman

Thanks so much for all the suggestions. After researching I've decided to go with a arc 28-47-1.5 or maybe the lighter ARC-28-37-2.5. I do like the idea of being able to someday go to a 4s, but I have about (15) 3s 2200 30c batteries that I would like to use up first. The arc 28-47-1.5 seems to be able to handle more watts but its heavier. So I guess I have to decide whether I want to over watt the 2.5 but have a over all lighter plane OR go with the 2.5 and not abuse the motor as much but have a heavier plane.

Boy those ICE ESC are expensive, I like the fact of not having to use a separate BEC on a 4 cell though.

Here is a pic of my current fun jet which I bought used off a guy at the field, they are so fun.

bigdog5332

the nice thing with the ice lite is that you can adjust it along with being able to see the data from your flights on the castle link.....the weight of the 47-1.5 isnt going to affect how the plane flies because it will have more power and you will have more power in the feature with it

bigdog5332

Hey i was wondering if anyone has tried any of the arv 36-x-x motors in their FJ's...i noticed that one guy ran the turnigy outrunner in his and it was fast

n8rloves2fly

My Feedback: (5)

There is a hxt motor sold by Hobby City 2700 or 3700 kv with sweet looking heat sink made for the fun jet. Looks great.

blkz2801

Got a link?

Also, I am still waiting on just a few more parts to get here. (in Italy due to the military) Really funny thing happened, i got an email from tower saying the got my returned products and will credit my account, but i never returned anything. So i just bought them again

blkz2801

Also, what do yall use to paint the FJ?