Not satisfied with BJ26 speed, any tips???

**Diesel6401** · 05-24-2010, 07:08 PM

The bj motor is actually a better motor than the stock sv motor. I think you need the programming card and adjust the motor timing. Also what batteries are you running? The bj motor can also handle more voltage. I don't think the problem is with the motor/esc of the bj just setup you have right now. You should def read through the information on the BJ on this site and I think you'll be able to get the boat running real good. Happy Boating!!!

http://www.offshoreelectrics.com/pro...rb3311&cat=136

**Tbone2000** · 05-25-2010, 03:41 AM

Thanks Diesel. I have the programming card for the ESC. What is your timing set at? I'm running 3800 mAh 7 cell 8.4V electrifly packs. I haven't made the switch to lipo yet. Anyway, these packs make my SV27 absolutely fly. I'm not saying the BJ26 is slow, just slow compared to the SV. I don't have a GPS, so maybe the SV just makes a bigger roost and looks faster..... I don't know. I have heard people elsewhere on this site speak highly of the BJ motor/esc setup so maybe I will leave it alone. Just seems like it should be faster.

**Diesel6401** · 05-25-2010, 04:19 PM

Originally posted by Tbone2000

Thanks Diesel. I have the programming card for the ESC. What is your timing set at? I'm running 3800 mAh 7 cell 8.4V electrifly packs. I haven't made the switch to lipo yet. Anyway, these packs make my SV27 absolutely fly. I'm not saying the BJ26 is slow, just slow compared to the SV. I don't have a GPS, so maybe the SV just makes a bigger roost and looks faster..... I don't know. I have heard people elsewhere on this site speak highly of the BJ motor/esc setup so maybe I will leave it alone. Just seems like it should be faster.

I actually don't have a BJ26, I just read alot. I think most folks set their timing to high, but don't quote me on that. It may be a cg problem you have with the BJ maybe it's running too wet not sure. If your happy with your nimh that's cool, but don't buy any new nimh packs. I think you'll be surprised that you can save more money in the long run swapping to lipo's.

**Meniscus** · 05-25-2010, 04:47 PM

Diesel is right. We do run high timing on the BJ26 and his suspicions related to COG are likely correct too. When you run the BJ26, does she get air underneath and try to flip? It may also be that you have the strut too low in the water or the wrong angle. Try moving the COG around and put the strut parallel to the water's surface while on plane. After you try that, you may find there's a difference in speed. From there you can try many of the other recommendations in this section of the forum to determine if there are other things you can do without spending a bunch of money.

Another question, how do you charge your NIMH's? I'm sure you know, but if you charge them very slowly, then they do not peak as much. If you charge them at higher amperage, then they pack a slightly higher punch. In any case, since you have both power systems, there's no issue with switching the motors to see what they will do, but I have to agree that the BJ26 motor is quite capable of working well.

Are you able to post a video of it running? I think you'd find that many folks could provide good input after seeing it run on the water.

I hope this helps.

**Tbone2000** · 05-25-2010, 06:07 PM

Thanks for the input. I use a Duratrax intellipeak dual charger. So.....do lipos last longer in terms of number of runs/charges?? I plan to switch to lipo but I bought my SV and batteries/charger as people were crossing over so I want to get my money out of them.
The boat doesn't seem to get too much air, it might need a lil more actually. I will mess with the COG and strut angle and see what is up. Should the boat want to flip backwards, is that normal?? Also, should I keep the timing high?

**Karfrik** · 05-25-2010, 07:07 PM

The BJ26 esc is much happier with lipos than Nimh,it happened to me.Also change the stock outdrive for some quality hardware,like Fullers(mine) or the ones OSE sells which i have read also work great and cheaper,making the boat more tuneable and responsive.X642 prop should be ok,thats what i run.........good luck and let us know.,Al

**dana** · 05-25-2010, 08:03 PM

i recently sold my elam on here with an x640 prop. i know it has the same motor esc setup as the bj (i think)...the guy who bought it said he ran the boat on the x640, then an x642. he told me it was actually faster with the x640 on it. maybe its because the smaller prop allows more rpm's. thats all

**tiletony** · 05-26-2010, 12:23 AM

the esc can handle up to 6s on a stock set up..but this is a hot set up so be careful..check temps often..

**Tbone2000** · 05-26-2010, 03:42 PM

Great information, thanks! Hey....does anybody know the part number for the OSE hardware? I'm thinking about purchasing this to improve handling. I might also instead use the formula fasttech setup with the offset rudder. Hopefully it would just bolt on.

**Meniscus** · 05-26-2010, 03:51 PM

Yes, always keep the timing on high. Of course you don't want it to flip over, but it's a good indication of how "wet" it runs. If the COG is too far forward, then it will not be riding as high on the water, which results in extra drag.

On the lipo vs. Nimh subject, lipos are lighter, maintain more constant voltage under load, etc. etc. If you do a search, there are lots of sites that compare the two. However, keep in mind that you will also need a charger that will handle them. You do not want to use a charger that is not compatible with lipos! Just a word of caution.

The hardware system I believe he was referring to can be found here: http://www.offshoreelectrics.com/pro...prod=ose-80085

However, it is out of stock at the moment. I say add a watch to the item, that way when it comes in, you'll be notified.

**dana** · 05-26-2010, 05:30 PM

ive heard alot of people say the stock proboat esc can handle 6s lipo...but the specs on it say max input voltage 21v, so how will it handle 6s lipo's? most of what ive read has been people using 6s and burning the motor/esc up... so personally 5s lipo is as high as i would go safely. just my opinion

**kookie_guy** · 05-26-2010, 08:38 PM

Originally posted by dana

ive heard alot of people say the stock proboat esc can handle 6s lipo...but the specs on it say max input voltage 21v, so how will it handle 6s lipo's? most of what ive read has been people using 6s and burning the motor/esc up... so personally 5s lipo is as high as i would go safely. just my opinion

^^ agreed. motor can take it, ESC cant

**Karfrik** · 05-27-2010, 02:53 AM

Originally posted by Meniscus

Yes, always keep the timing on high. Of course you don't want it to flip over, but it's a good indication of how "wet" it runs. If the COG is too far forward, then it will not be riding as high on the water, which results in extra drag.

On the lipo vs. Nimh subject, lipos are lighter, maintain more constant voltage under load, etc. etc. If you do a search, there are lots of sites that compare the two. However, keep in mind that you will also need a charger that will handle them. You do not want to use a charger that is not compatible with lipos! Just a word of caution.

The hardware system I believe he was referring to can be found here: http://www.offshoreelectrics.com/pro...prod=ose-80085

However, it is out of stock at the moment. I say add a watch to the item, that way when it comes in, you'll be notified.

Yeap thats the one,$30 cheaper than a Fuller,but many other options out there.You`ll see/feel the difference in handling right away!!!!...............Al

Not satisfied with BJ26 speed, any tips???

Not satisfied with BJ26 speed, any tips???

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