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View Full Version : Just got a ProBoat Shockwave 26



Fischetti11358
04-14-2014, 04:37 PM
I went to my LHS the other day with my friend. He bought a Shcokwave 26 BL V3 a few months ago, so I decided to get one also.

I ran it the other day for the first time on a 2s lipo and it was fun, just bot fast enough for me. I ran it again yesterday with a 3s lipo and what a difference!

I have done some research and today and I just ordered a new 3s lipo. It's a 5000mah 65-130c. I also ordered an Octura X435, which will be sharpened, balanced and polished.

Can't wait to get them!

Are there any other recommended upgrades for the Shockwave 26? I was looking for a metal rudder, but couldn't find one.

kfxguy
04-14-2014, 05:50 PM
That prop is way too small. You'll have a hard time getting on plane with it. I have had two of those boats and my son still has one. It really like the 45 mm graupner carbon prop. I upgraded the esc to the 80 provost esc out of a miss geico. On 4s it's really fast.

Fischetti11358
04-14-2014, 05:55 PM
I've read on a few threads that people are running this prop, that's why I ordered it.

kfxguy
04-14-2014, 06:19 PM
For the non brushless version which turns a lot more rpm. What size shafts did your order it for?

Fischetti11358
04-14-2014, 07:26 PM
I've seen many people using it on the Shockwave 26 brushless version.

I ordered this one, which is getting sharpened, balanced and polished.

http://www.funrcboats.com/ProductInfo.aspx?productid=OCX435

kfxguy
04-14-2014, 10:11 PM
I've seen many people using it on the Shockwave 26 brushless version.

I ordered this one, which is getting sharpened, balanced and polished.

http://www.funrcboats.com/ProductInfo.aspx?productid=OCX435

Sorry bud. Like I told you, it's not gonna work. I won't keep arguing with you. That prop you sent a link for is for a 1/8 shaft. If you have a Shockwave 26 brushless, you have a 3/16 shaft. I have the same prop. I did the same mistake your making. That prop works with the brushed version. I've had both. The brushed version has a smaller shaft and the motor turns more rpm per volt. If you have a v3 brushless, I'll bet you 100 bucks I'm right. Here's your proof....I just took these pics just for you

http://i218.photobucket.com/albums/cc243/ltzguy/20140414_210410.jpg (http://s218.photobucket.com/user/ltzguy/media/20140414_210410.jpg.html)


http://i218.photobucket.com/albums/cc243/ltzguy/20140414_210232.jpg (http://s218.photobucket.com/user/ltzguy/media/20140414_210232.jpg.html)

Fischetti11358
04-15-2014, 05:19 AM
Well when I ordered, that's the only x435 prop I saw. Do you have a link to the one I need?

J.W. Pepper
04-15-2014, 07:45 AM
Sorry bud. Like I told you, it's not gonna work. I won't keep arguing with you. That prop you sent a link for is for a 1/8 shaft. If you have a Shockwave 26 brushless, you have a 3/16 shaft. I have the same prop. I did the same mistake your making. That prop works with the brushed version. I've had both.

The brushed version has a smaller shaft...
Sorry guy, but that's not true! I too have the brushed version (V3), uses the same size shaft as the BL version, .150" with 3/16"(.187") prop shaft, both come with this prop... http://www.proboatmodels.com/Products/Default.aspx?ProdID=PRB0151 - I attached 3 pix of my shaft for your review - they're under your boat pix.

Proboat (not provost) lists this one as optional... http://www.proboatmodels.com/Products/RelatedParts.aspx?ProdID=PRB0600&Category=Hop-Ups&SubCategory= - and - http://www.proboatmodels.com/Products/Default.aspx?ProdId=PRB0650 - those are the same props that come stock on the IM31 (v1 & v2), I have the v1.

The PB prop is the same thing as a Prather S215... http://www.offshoreelectrics.com/proddetail.php?prod=hpi-prather-s215 and is very close in size to an Octura x640 - 40mm(1.57") 1.6P x 1.57" = 2.512

If you have a v3 brushless, I'll bet you 100 bucks I'm right. Here's your proof....I just took these pics just for you...
@Fischetti11358... you might want to listen to what kfxguy is trying to tell you cuz you will loose the $100 if you don't! I don't care what some JackMeHoff on another forum told you, they're wrong!

He's wrong bout the brushed version shafts as you can tell from the attached pix, but that doesn't really matter since we're talking bout BL boats anyways.

My 2C - hopefully it cleared the air - peace everybody.

http://i218.photobucket.com/albums/cc243/ltzguy/20140414_210410.jpg (http://s218.photobucket.com/user/ltzguy/media/20140414_210410.jpg.html)


http://i218.photobucket.com/albums/cc243/ltzguy/20140414_210232.jpg (http://s218.photobucket.com/user/ltzguy/media/20140414_210232.jpg.html)[/QUOTE]

Fischetti11358
04-15-2014, 08:05 AM
I guess I'll have to wait and and see. But like I've said, I've seen numerous posts about the x435 prop working. Can't I just drill out the prop to make it fit my shaft?

What prop do you guys recommend me getting?

Fischetti11358
04-15-2014, 08:19 AM
I just find it weird that I've read on multiple forums from multiple people that this prop works.

J.W. Pepper
04-15-2014, 08:47 AM
I just find it weird that I've read on multiple forums from multiple people that this prop works.

There's two different Shockwave boats, this old one that has steerable outdrive... http://www.proboatmodels.com/Products/Default.aspx?ProdID=PRB3150 - stock prop is 1.34" in diameter which is 34.03mm. Reason it's smaller than the props used on the SW-v3 boats is because the prop is running submerged, the v3 boats use surface drive.

Here's the deal... PB took the Impluse 26 (which was brushed only) replaced the PB electronics with Dynamite electronics, renamed it Shockwave 26V3 and offered it in two versions - smart move if you ask me.

The people who are telling you to use the x435 apparently don't know the difference between the old model and the new one (or their a$$ from a hole in the ground since their not asking) that's why they keep giving you false info.

Me and kfxguy do know our boats and we know what we're talking about, that's why we keep giving you correct info backed up by numerous pix, for what-ever reason you choose not to believe us.

Fischetti11358
04-15-2014, 09:11 AM
So they're running the x435 on the older Shockwave? But I've seen people running the x435 on the V3.

What sharpened, balanced and polished prop do you guys recommend for the V3 on a 3s lipo?

kfxguy
04-15-2014, 10:20 AM
Jw, your right. Now that I think of it, it was only the steerable out drive version that had a 1/8 shaft. My bad.

Op, my son's boat likes (don't trip everyone! Lol) a graupner 50 mm carbon prop on 3 the most. I checked it last night. We have tried numerous props and on 3 this is what it likes. It runs for about 25 minutes on a 5400 mah battery and never runs hot. It's what it likes. And it's cheap. I'd start off with a 45 mm first because I am running g the 80 amp esc.

kfxguy
04-15-2014, 10:22 AM
Here's a link. Buy a few

http://www.offshoreelectrics.com/products.php?cat=Carbon+Props

Fischetti11358
04-15-2014, 11:03 AM
Here's a link. Buy a few
http://www.offshoreelectrics.com/products.php?cat=Carbon+Props

Run them just like that? Don't have them sharpened or balanced?

kfxguy
04-15-2014, 11:04 AM
I couldn't find it on 3s. Here it is on 4s

Shockwave 26 brushless on 4s: http://youtu.be/mGtDESqpII0

kfxguy
04-15-2014, 11:05 AM
Run them just like that? Don't have them sharpened or balanced?

No need too. They are already sharp.

TheShaughnessy
04-15-2014, 11:12 AM
I did a x642 for a customer , he liked it so much he got two more.

kfxguy
04-15-2014, 11:19 AM
I did a x642 for a customer , he liked it so much he got two more.

I can't remember if I tried that prop. I have one tho. We sat down and kept swapping props one day to find out it did best with the 51mm graupner. I know that's frigging huge for this boat but I think the reason why is the 6 pole 1500kv proboat Is low rpm with a lot of torque

Fischetti11358
04-15-2014, 11:43 AM
Looks like I'll be ordering some of those carbon props when I get home!

I am also going to call the place I ordered the x435 prop from and see if I can cancel the order.

Fischetti11358
04-15-2014, 11:47 AM
The 45mm prop is out of stock on that site and on another site it says it's discontinued.

kfxguy
04-15-2014, 12:32 PM
The 45mm prop is out of stock on that site and on another site it says it's discontinued.

I'll check when I get home from work. I think I have a few.

Fischetti11358
04-15-2014, 12:42 PM
I'll check when I get home from work. I think I have a few.
That would be great, please let me know.

Fischetti11358
04-15-2014, 12:45 PM
Also, will this fit?

http://www.offshoreelectrics.com/proddetail.php?prod=oct-oc6pnmm

kfxguy
04-15-2014, 01:17 PM
Also, will this fit?

http://www.offshoreelectrics.com/proddetail.php?prod=oct-oc6pnmm

Yes but i wouldn't recommend it. They come off and you'll lose your prop and the boat won't move....so you'll go swimming if you don't have a way to retrieve it.

Fischetti11358
04-15-2014, 01:40 PM
OK thanks. So just stick with the regular prop nut?

Also, I want to order those carbon props. What sizes do you recommend me getting since the 45 is out of stock.

kfxguy
04-15-2014, 01:50 PM
Regular lock nut is fine. I'd get a 42, 48 and 51 and try those. On higher voltage it's gonna like the 42. On lower voltage, bigger.

Fischetti11358
04-15-2014, 03:31 PM
Well I don't plan on running it on 2s, it's just too slow haha.

So on a 3s, it will like a small one like a 40?

Anything else you recommend me getting? Does anyone make a metal rudder?

kfxguy
04-15-2014, 03:42 PM
Well I don't plan on running it on 2s, it's just too slow haha.

So on a 3s, it will like a small one like a 40?

Anything else you recommend me getting? Does anyone make a metal rudder?

I'm getting the feeling your not listening to me very much. 40mm is too small for that low of rpm. If you going to run 3s, get a 48. Quit worrying about running a small prop unless you change the motor and run a higher kv

Fischetti11358
04-15-2014, 03:48 PM
Sorry I must have been confused.

So if I'm only going to be running a 3s, what other sizes should I get besides a 48? Maybe a 51?

Fischetti11358
04-15-2014, 03:49 PM
Regular lock nut is fine. I'd get a 42, 48 and 51 and try those. On higher voltage it's gonna like the 42. On lower voltage, bigger.

Are you referring to the motor or battery voltage?

I'm putting the props in my shopping cart now. Should I get one bigger than the 51? They have a 54 and 57 also.

What else can I upgrade on the boat? Does anyone make a metal rudder? Are turn fins worth upgrading?

kfxguy
04-15-2014, 04:09 PM
Sorry I must have been confused.

So if I'm only going to be running a 3s, what other sizes should I get besides a 48? Maybe a 51?

Yes and yes.

Here's what happens when you try to go to fast with this hull

Shockwave 26 brushless modified: http://youtu.be/hpOcOZhVuV0

kfxguy
04-15-2014, 04:10 PM
Are you referring to the motor or battery voltage?

I'm putting the props in my shopping cart now. Should I get one bigger than the 51? They have a 54 and 57 also.

What else can I upgrade on the boat? Does anyone make a metal rudder? Are turn fins worth upgrading?

Biggest I've tried is a 51. If you can, get an 80 amp proboat esc and run it on 4s with a 42-45mm prop. That's the fastest, most reliable setup. I'd keep everything else as is.

Fischetti11358
04-15-2014, 04:14 PM
Ok, so I'll just order the 48 and 51 props.

I don't see the 80 amp ESC on that site. I see the 60 amp is $115. Do you recommend another company for an ESC, or stay with PB?

kfxguy
04-15-2014, 04:19 PM
Ok, so I'll just order the 48 and 51 props.

I don't see the 80 amp ESC on that site. I see the 60 amp is $115. Do you recommend another company for an ESC, or stay with PB?

Proboat. You'll have to buy one used in the for sale section here when one comes up. I'd get the 42mm while your at it. When you get the esc and a 4s pack you'll need the 42mm prop. It'll do around 40mph with that setup

Fischetti11358
04-15-2014, 04:23 PM
Do you have a link to the 80 amp ESC, maybe I can find it somewhere else.

What speeds will I be getting on a stock setup with a 3s and either the 48 or 51 prop?

kfxguy
04-15-2014, 04:28 PM
Do you have a link to the 80 amp ESC, maybe I can find it somewhere else.

What speeds will I be getting on a stock setup with a 3s and either the 48 or 51 prop?

I think my son's does around 30-32mph on 3s with a 51mm

Fischetti11358
04-15-2014, 04:40 PM
Nice!

How much of a difference is that over a stock prop?

kfxguy
04-15-2014, 04:54 PM
Nice!

How much of a difference is that over a stock prop?

It did 22mph on the gps, stock on 3s. Like 16mph on 2s lol

Fischetti11358
04-15-2014, 06:00 PM
Just ordered the props! My new battery should be here Thursday!

J.W. Pepper
04-15-2014, 09:56 PM
I did a x642 for a customer , he liked it so much he got two more.

FYI: BHCheiftan recommends that size for the IM31's :spy:

Jan has CNC'ed M642's FWIW - http://www.kintecracing.com/CNC_Machined_Props.html - have to scroll down aways. - I've been thinkin about getting one to try out on my IM31.

J.W. Pepper
04-15-2014, 11:10 PM
Jw, your right. Now that I think of it, it was only the steerable out drive version that had a 1/8 shaft. My bad.
No prob, I was up all night. So I was a bit rough by 6am; took me awhile before it dawned on me why Fischetti11358 was being so adamit about the x435 size.

Last night I was checking out the MG24 for a BL project using a PB1500Kv motor with 90A SK speedo. Part of my research involved trying to figure out what size prop to use with that setup, that's what made me think of it.

J.W. Pepper
04-15-2014, 11:33 PM
Yes and yes.

Here's what happens when you try to go to fast with this hull

Shockwave 26 brushless modified: http://youtu.be/hpOcOZhVuV0

Dude - that's sick!

Have you thought about adding some glass to the interior to stiffen up the hull?? That's my only real complaint about these boats, thin plastic on the sides and especially the top rails, see attached, I drew red lines on them.

I got one of those Bondo kits I posted pix of in this thread (post #9)... http://forums.offshoreelectrics.com/showthread.php?46083-maiden-voyage-destruction-need-help to reinforce mine.

Now if I could just find time.

kfxguy
04-16-2014, 12:05 AM
FYI: BHCheiftan recommends that size for the IM31's :spy:

Jan has CNC'ed M642's FWIW - http://www.kintecracing.com/CNC_Machined_Props.html - have to scroll down aways. - I've been thinkin about getting one to try out on my IM31.

I've tried several cnc props on numerous boats. None of them performed near as well as the carbon props and Octura props. I even sharpened and balanced one last weeked. Was the same exact prop as an Octura I had that I s&b.....was noticeably slower. I've officially given up on cnc props. As much as I hoped they would work as well...they dont.

kfxguy
04-16-2014, 12:07 AM
Dude - that's sick!

Have you thought about adding some glass to the interior to stiffen up the hull?? That's my only real complaint about these boats, thin plastic on the sides and especially the top rails, see attached, I drew red lines on them.

I got one of those Bondo kits I posted pix of in this thread (post #9)... http://forums.offshoreelectrics.com/showthread.php?46083-maiden-voyage-destruction-need-help to reinforce mine.

Now if I could just find time.

That boat you see in that video, destroyed itself. It could only take so many flips lol. My fix is I bought a 26" fiberglass hull to replace it. I just haven't put it together yet. In that video, it had a castle 1512 2650kv motor running on 4s. It was very fast.

kfxguy
04-16-2014, 12:16 AM
I want to be clear on something here. I know most people has their idea on a certain prop size is supposed to go with a certain hull. That may be true to a certain extent and there Wil always be exceptions. This is one of those exceptions. I have tried numerous props on this shockwave. It just likes a big as prop. The motor that come in it is a 6 pole very torquey 1500kv motor. It's only turning about 17k rpm on a fully charged 3s pack. It will swing a big prop with no problem. Wait till the op posts back. His boat is going to pick up a bunch with a prop change. I tried an x642, it went slower. M645...slower. it just likes those big carbon props.

J.W. Pepper
04-16-2014, 01:23 AM
The 45mm prop is out of stock on that site and on another site it says it's discontinued.

Your right Steve is outta the Graupner carbon props, but he does have these... http://www.offshoreelectrics.com/proddetail.php?prod=ose-2bld-316

Bout the ESC... get yourself a Seaking 90A unit, cheaper, better & easier to program than the PB or Dynamite units.

J.W. Pepper
04-16-2014, 01:58 AM
I want to be clear on something here. I know most people has their idea on a certain prop size is supposed to go with a certain hull. That may be true to a certain extent and there Wil always be exceptions. This is one of those exceptions. I have tried numerous props on this shockwave. It just likes a big as prop. The motor that come in it is a 6 pole very torquey 1500kv motor. It's only turning about 17k rpm on a fully charged 3s pack. It will swing a big prop with no problem. Wait till the op posts back. His boat is going to pick up a bunch with a prop change. I tried an x642, it went slower. M645...slower. it just likes those big carbon props.

The motor that come in it is a 6 pole very torquey 1500kv motor. It's only turning about 17k rpm on a fully charged 3s pack...
Your absolutely right!! And the PB versions of those motors are closer to 1700Kv:drool:, I bought one from Darin Jordan while back, that's what he told me at the time. Picked up a 2nd for a spare. Can't help but wonder how the boat would do with the PB 1800kv motor from the IM31:banana:

I've been checking out this prop chart... http://www.funrcboats.com/prop_chart1.htm#Chart - the x447 has almost the same amount of total pitch as the stock prop, 2.590 vs 2.60 - that explains why this boat can swing the larger props with no prob.

Unfortunately, both Steve & these guys are out of the x445's... http://www.funrcboats.com/category.aspx?CK=1&categoryID=218&startpage=1&sort=4 - the say disco'ed on that page, but here... http://www.funrcboats.com/ProductInfo.aspx?productid=GR231745 - they say they're on order, ok, so which is it??

Sux, after reading your posts, I very much wanna try the x445 size (on 3S), then maybe try the larger sizes.

Can't thank enough for sharing the info, just wish it was before the props got disco'ed.

TheShaughnessy
04-16-2014, 10:06 AM
Here's my story on the x642. A customer came into the shop (I started working at a hobby shop a couple months ago) and wanted a metal prop for his shockwave, at the time I didn't even know there was a brushless version. A brushed one with steerable outdrive had just left the shop and I noticed it did indeed have a 1/8 th stub shaft and assumed his would have the same.

Well I had him bring in his shockwave with his buddy who was picking up a m445 I did for a geico. I didn't really know where to go with a prop on the shockwave ( had lots of options after discovering he had a 3/16 shaft) I knew my sv27 ran well with the 642 so I said to myself, hey this is a similar power plant and hull so it should work well. I pulled out a 642 from my own collection and told him to give it a try and see how it worked. He called a couple days later and said he wanted two.

I didn't really consider it was only running 3s. PB needs a 2200 ish kv motor. Like has been said 1500 kv is low rpm for 3s. A larger prop really does need to be used but I was concerned with torque roll and prop walk, not to mention heat. Last thing I need is a customer with a smelly boat. Folks around here haven't accepted a 2 min run time so I have to limit how much prop I can recommend.

A 51 seems to be perfectly reasonable, I just figured something that large would create handling issues. I bet it would swing a x646/3 on 3s. I slapped one of those bad boys on my SV when I was starting out, finally smoked the esc when I ran 18 nihm cells in it.

Ok rambling done

Fischetti11358
04-19-2014, 07:59 PM
So, I got my new 3s lipo the other day. It's a Nano-Tech 5000mah 65-130c pack. I'm not sure what the 65-130c means. Does that mean at low throttle it's 65 and at full throttle it's at 130?

I also got my carbon props today. I ordered 42, 48 and 51mm ones. Which one should I try out first? How will each of them perform?

I am going to run the boat tomorrow, so I was just curious about the props.

kfxguy
04-19-2014, 10:16 PM
So, I got my new 3s lipo the other day. It's a Nano-Tech 5000mah 65-130c pack. I'm not sure what the 65-130c means. Does that mean at low throttle it's 65 and at full throttle it's at 130?

I also got my carbon props today. I ordered 42, 48 and 51mm ones. Which one should I try out first? How will each of them perform?

I am going to run the boat tomorrow, so I was just curious about the props.

Meh....turn it does some stupid rating thing. Still don't really know what it means or if it really means anything. I go by the lower number. It's basically a 65c (rated by them anyway, prolly more like 40-45c from what I've seen). Still easily good enough for what your doing. Always try the smaller prop first then work your way up. Let me know how it runs. Make a couple passes on stock prop...change...etc then you can see the difference.

Fischetti11358
04-19-2014, 10:55 PM
Will I notice a difference between the stock prop and the 42mm?

kfxguy
04-19-2014, 11:46 PM
Will I notice a difference between the stock prop and the 42mm?

You should

Fischetti11358
04-19-2014, 11:52 PM
Cool, can't wait to try it out tomorrow morning!

Fischetti11358
04-20-2014, 12:58 PM
I just got home from running the boat. Right when I got there, I ran my old 3s lipo on the stock prop. I knew how it performed on this, but I just wanted to get a feel for the speed of it, so I can compare it to other props and battery.

After a short run, I put on the 42mm prop. I didn't notice any difference, so I brought the boat in and put on the 48mm prop. I noticed a difference with this one and it was plenty of speed to be fun. I ran down my old 3s lipo on the 48mm prop and then I put in my new, bigger 3s lipo. On the 48mm prop and new lipo, the boat was really fast and at times, bouncing and jumping a little. I ran the new lipo for a few minutes, then I put on the 51mm prop. The 51mm was very fast off the line, almost jumping out of the water for a second. On this setup, the boat was amazing!

Now, I have a few questions. Should the front of my boat be slightly out of the water, or should the boat be planted into the water? Also, my prop should be fully submerged right? How should I adjust my rudder and fins so the boat performs better? I haven't touched them since I got the boat. How will moving them up or down make the boat perform?

kfxguy
04-20-2014, 01:04 PM
I just got home from running the boat. Right when I got there, I ran my old 3s lipo on the stock prop. I knew how it performed on this, but I just wanted to get a feel for the speed of it, so I can compare it to other props and battery.

After a short run, I put on the 42mm prop. I didn't notice any difference, so I brought the boat in and put on the 48mm prop. I noticed a difference with this one and it was plenty of speed to be fun. I ran down my old 3s lipo on the 48mm prop and then I put in my new, bigger 3s lipo. On the 48mm prop and new lipo, the boat was really fast and at times, bouncing and jumping a little. I ran the new lipo for a few minutes, then I put on the 51mm prop. The 51mm was very fast off the line, almost jumping out of the water for a second. On this setup, the boat was amazing!

Now, I have a few questions. Should the front of my boat be slightly out of the water, or should the boat be planted into the water? Also, my prop should be fully submerged right? How should I adjust my rudder and fins so the boat performs better? I haven't touched them since I got the boat. How will moving them up or down make the boat perform?

Told you! That puppy will move on out with the 51. Lol. Kinda goes against what most people think don't it?

I played with trim tabs and I dint have much luck. Mine ended up running the best the way it came. Knowing what I know now I could have bent the brass stuffing tube to play with it but I never did. You want it running as much out the water as you can without it chine walking or bouncing. When you play around with it you'll see what each thing does. Make only one change at a time tho! That way you can change it back if it gives you a eating effect.

Fischetti11358
04-21-2014, 10:06 AM
Thanks, I'll play around with the positions of them next time out!

By the way, my friend has the same boat, so running them together is really fun! He put his 51mm prop on first yesterday. He drove for about 30sec and he must have hit something and flipped. His hatch and inner cover came off. The inner cover sank but we eventually got the hatch back. Time to grab a roll of hatch tape!

Pa Yankee
05-14-2014, 08:09 PM
So the k series 51mm prop is the way to go? Debating between the 48 and 51.

Sympster
07-02-2014, 10:07 AM
48mm on 3S
http://youtu.be/l840mzqOi14

48mm on 4S
http://youtu.be/jUHtrQ2PTTA

51mm on 4S
http://youtu.be/f72leiCrD0Q

I don't have a GPS on it, any idea of how fast it is based on the video?

51mm is good on 3S also. I did have an issue with prop walk on the 51mm on 4S. Sorry my buddies talk too much in the vide. I'll try to shoot some on open water.

This is on a HK 3-4S 100A Car ESC. Got a Seaking 120 coming. Looking forward to trying 5 or 6S with a smaller prop. May reduce the chances of prop walk. Will try to prop to stay the high 30s or low 40s. I don't think this hull can handle anything faster.

bigcam406
07-05-2014, 09:25 AM
nice job on your boat and vids.the boat works really well.you're right about the hull,i wouldn't push it too much harder.

Sympster
07-06-2014, 10:11 PM
I finally got a GPS in the boat. 32 mph on the 51mm on 4S. Not as fast as I thought. I guess boats always look faster than they are really going. Fast enough for me for now.

kfxguy
07-06-2014, 11:53 PM
I'm surprised it didn't go faster. I just got an impulse 31 and I took the motor out of my son's shockwave and on 6s it does 45.7 with am m645 prop.

Sympster
07-07-2014, 09:45 AM
Just ran the speed calculator on the Graupner 51mm x 1.4 on 1500 kv and 4S. Maybe 32 mph isn't too far off. I derated by batteries a bit because they're a little bit old.


117686


Used the calculator your m645 on 1500 kv and a good 6S and seems like you should have got better than 45.7 mph out of it. It estimated 54 mph.
117687

kfxguy
07-07-2014, 09:54 AM
I got 39.5 out of mine with a castle 1512 2650kv motor on 3s I think. 4s was uncontrollable. So the limit for this hull for being controllable us about 40 mph. I did add some stick on wheel weight to the front to help it. I noticed the other day my son added weights to the right side of his to stop the prop walk. His goes straight too.

coryalvord
11-01-2014, 01:28 PM
Not to interrupt the conversation but I am new to boats and bought a proboat 26 hull and some way overkill electronics with plans to upgrade I have hobbywing seaking 120amp v3 and a 2100kv motor and was wondering if someone could recommend me a 4s pack that fits well would like to run a single pack in stock location I ran it with 2 standard sized 2s 5200 packs on sides was super fast but flipped easily due to extra weight

coryalvord
11-04-2014, 11:04 AM
Not to interrupt the conversation but I am new to boats and bought a proboat 26 hull and some way overkill electronics with plans to upgrade I have hobbywing seaking 120amp v3 and a 2100kv motor and was wondering if someone could recommend me a 4s pack that fits well would like to run a single pack in stock location I ran it with 2 standard sized 2s 5200 packs on sides was super fast but flipped easily due to extra weight

anyone with any input on my question?????????????????????

kfxguy
11-04-2014, 11:26 AM
anyone with any input on my question?????????????????????

i answered it in the other thread you posted the same question in. measure your boat where the battery fits...then look on the revolectrix website for dimensions...