Anyone done the Kershaw 700's yet?

[Custnam]

Ive read posts with people talking about the Kershaw's as an option, but Ive yet to find someone thats actually gotten the http://home.ptd.net/~kershawd/Kersha...Conversion.htm

If so was it a good investment? More torque, top speed? Looking into getting this but hoping to get as much info as possible before the purchase. Thanks

[mbeatle]

Downsides that people rarely mention:

• Lower runtime - brushless is more efficient and therefore can actually increase runtime
• More weight - I've yet to see anyone quote differences in weight, but a decent brushless motor can save you 70g off your truck.

[Custnam]

Yea, I knew about the decreased runtime because I contacted Dan directly about my E-Maxx. I dont recall how much runtime he thought I would lose off hand, it was awhile back. Im running dual Maxamp 7 cell 4700 mah NIMH packs, with no plans in the near future of lipos. My other set of packs still have to be reconfigured, but they will be dual Intellect 7 cell 3600 mah NIMH'S.
Unfortunately most of this is a cost issue. Just depends on weighing the pros and cons VS. the cost. I know a motor that size most likely has a ton of torque, and I didnt buy my revo for high speed anyway, but I may just end up going BL someday. Not too sure on that one either.

[nitrolijah72]

This is the setup I run:

3905 E-Maxx (stock other than the Kershaws)
SPC 4620 7-cell packs
CBP 4700 Elite 7-cell packs
26T Pinion that comes with the Conversion Kit

Run Time - High Speed passes - 15-20 roughly still with enough punch at the end to flip the truck over...The truck accelerates ALOT faster than the stock set up with the Titans. I am impressed and that is coming from a nitro guy who also runs a MGT 8.0...

Playing around - varying the speed a bit gives me about 25-27 minutes, just depends. I have no complaints about the set up..My point is, the decrease isnt that big of a deal and as you stated you didnt buy the E-Revo for high speed anyway. Most want the most speed possible and most insane set ups for the sake of having it. I dont know LOL I like the motors I am running and Dan has been a cool, stand up guy with me...

Weight - I will get the truck's weight later tonight and post it. It is heavier as the batteries and motors do add weight. My verdict - OK not a big deal. I EXPECTED the weight to increase...

You will hear nothing but negative comments on this forum about these motors,(with a few exceptions of course) as most here feel their opinion is THE opinion. I however know of course that isnt the case.

I decided to do the conversion because I wanted to try it out. I have seen the 970 conversion run and I was impressed with it on the old 3906 E-Maxx..

The system isnt as efficient as brushless and is heavier blah blah blah....I havent decided which lipos I want to get but that will be my next upgrade before I go with the CC MMM system whenever it comes out bug free......

Only my .02 cents and it is from practical hands on experience not hear say or youtube videos....I am fortunate enough to be able to have a "RC budget" and I can try this or that if I so choose. It isnt a waste for ME if I wanted to attach a rocket to the truck that weiged 100 pounds. It is what I wanted to do with it and it is at my descretion to do so. That is what the hobby is all about. Personal preferences and desires no matter if anyone else thinks it is a waste of money or pointless....

Stay tuned

[aggie rustler]

Mine is in the mail, probably get it early next week. I will have a short review when I get them hooked up.

[BlUeRuStY]

Nitrolijah72. I demand pictures

[4boys3pedes]

I also have ordered the conversion from kd. I only did it because the mmm and the novak do not have the bugs out of their systems yet, or are not available. I am also one of those fortunate to have an rc budget, but I will wait for the big $$$ items intil they have proved themselves "bug" free and reliable. I will post my thoughts when it is done. If it is good enough to race then no mmm or novak. I guess it is to be determined LOL!!!

[asheck]

You will hear nothing but negative comments on this forum about these motors,(with a few exceptions of course) as most here feel their opinion is THE opinion. I however know of course that isnt the case

Please watch your comments!this is about the 4th time I've seen you complain about this.Just because people were listing the advantages of brushless and that they can be more cost effective,you feel like you should take it personally.Get over it BTW it's not these motors.Brushless is just far superior,more efficient,more power,and no maintenance.It is new technology.

[aggie rustler]

Alright fellas, we all know that both systems have their pro's & con's and what they are. Let's just agree to disagree.

Why can't we just all get along? -Rodney King

[Kershaw Designs]

You know, I'm not sure whether to be flattered, turned-off or horrified that I was the source of such controversy. Believe me when I say that I've been at the place where 1000's of dollars has been wrapped up in RC cars. Now, if only everyone could be so passionate about issues of great world consequence, like politics, China on the rise and quality education.

Here's a simple fix. Since I sell BOTH kinds of systems, I really have nothing to gain by swaying one way or the other. I've given plenty of advise that is as humanly unbiased as possible to customers who have purchased just a little "widget" from me. Those open to any honest opinion, just email.

Dan Fischer
Dan@KershawDesigns.com

[asheck]

Dan I bought a brushless motor from you and have absolutely nothing against your kit,and totally understand why you have it available.But since your here as a poster not a vendor what do you run in your personal vehicles?

[galexis123]

I personally agree that everyone should pick and choose whatever setup they want. I personally ordered the Kershaw 700 HO myself as an alternative to a brushless system. I know someone will come into this thread and restate ALL the advantages of a brushless system. BUT no one seems to state the disadvantages. I personally have had a brushless system (MM & 6900kv on a losi xxx-t & speed-t) and let me say that I had to upgrade both cars substantially in order to be able to handle the increase TORQUE and RPM. It was not cost efficient in the end. I have done soo much research before deciding to go with Dan's motors.

Also as an alternative to the Kershaw's, I found that the Electrifly's s-600/s-600r or the Electrifly's t-600/t-600r. They both are cheaper and have been used for bashing by many other hobbyists at 16.8v and more (in spite of the suggest manufacture voltage). If you don't believe me just google the name along with e-savage.

But I choose the Kershaw's because of the additional torque versus top speed. Because it seems sort of a contradiction to want extreme (+50 mph) speed for a MT. But that is only my opinion.

[asheck]

Just so you know I gear mine for around 40 mph,it's not about the speed,ok it's not all about the speed and these vehicles need no upgrades to handle it.With MT the efficiency becomes the most important thing IMO.If the brushed motors are what you want,I hope you enjoy them.

[Kershaw Designs]

Dan I bought a brushless motor from you and have absolutely nothing against your kit,and totally understand why you have it available.But since your here as a poster not a vendor what do you run in your personal vehicles?

Good question. But one that is hard answer and give what I believe you are looking for. In truth, I have been so overwhelmed with getting KD up and running full time and taking grad courses that I have not made any custom vehicles for myself. Most recently, I have had a 1/6 scale custom truck that had brushless power (Hard to beat the efficiency of brushless motor when moving large trucks). I am now setting up an E-Revo with 970 brushed motors to test the system and make a promotional video.

Dan Fischer
Dan@KershawDesigns.com

[nitrolijah72]

What a fricking whiner you are,this is about the 4th time I've seen you complain about this.Just because people were listing the advantages of brushless and that they can be more cost effective,you feel like you should take it personally.Get over it BTW it's not these motors.Brushless is just far superior,more efficient,more power,and no maintenance.It is new technology.

I was once told by you that if I cannot stand to read someone's else's opinion you shouldnt post anything or read it correct? I believe there is an option to put me on your ignore list to save yourself the pain and drama of reading another person's opinion that is different from yours.

I dont use terms such as you because I am mature enough to express myself and not name call. I am a grown up and can read another's post and not even care about it. This is just a hobby not my life. I think Dan makes great products and undoubtedly will make more "old" technology products in the future for those of us who want to spend our money as we see fit. Again typical of immature folks such as yourself....oops I did say immature but that is kind of obvious....

[nitrolijah72]

Nitrolijah72. I demand pictures

LOL....As soon as I get my camera back from being repaired I will get some pics and video...

[galexis123]

I got my 700 HO today and got an opportunity to run it for a couple of minutes. BUT my ESC was faulty and I sent it back to traxxas. I'm not sure if I got to see what theses things can really do because of my faulty esc. But my first impression is that it has plenty of torque. My car cut through almost a foot of grass like butter.

[alangsam]

i have them and have 35 runs. they are much faster 40mph vs 30. the torque is 2to3x. car will flip over backwards from standing start with slippler tight. havengt seen a change in run time from stock. everything is a bit cooler AND you stay waterproof. so far the motors are bulletproof. youll wonder why the titans have to be so bad.

choice is simple. for 99 bucks you go faster and the quality is 10x the titans. if you spend 250- 400 you can get good brushless which is better than brushed but you loose waterproof - if that matters.

[nitrolijah72]

Good point ^^ I ran mine this weekend at a local park and got excellent results... I had an issue with the motors and batts getting hot but figured it out and had a blast....

alangsam, you are right on the money, run times are not that much (if at all) different than stock. I ran my E in a large field with short, dry grass and did about 10 very large circles (about 800 or more feet from me) and the truck would still flip over even with the batts getting low....Coming down off of the grass hill, it would flip over and pop back on it's wheels and the onlookers thought it was the coolest thing as did my 11 year old...

I got more punch and time out of my CBP packs than my SPC packs though....I weighed the truck and got these results:

Truck (by itself) - 11 lbs
Truck (with batts) - 13 lbs

I will get some pics/vids at that same park maybe this weekend hopefully and you can see the rooster tail of grass the truck leaves behind....I am totally content for now with the setup and lok forward to seeing other videos and pics....

[deepsouth]

so brushless motors are not waterproof?

[deepsouth]

does this conversion come with everything u need?does it need an esc?

except for of course the batteries and the truck?

[ksb51rl]

so brushless motors are not waterproof?

I believe the reference was to the brushless ESCs not being waterproof.

[deepsouth]

oh ok thanks. that wuld make more sense.

[nitrolijah72]

does this conversion come with everything u need?does it need an esc?

except for of course the batteries and the truck?

Check out the kit below...It comes with your choice of pinions but it does come with all that is needed. You choose the connectors you want or you can go with the same bullet connectors to connect it to the stock EVX2....

http://www.kershawdesigns.com/

[deepsouth]

i would like to see what u are talking about but its just the home page. =(

[aggie rustler]

Come on deep, dig a little:

Products>E-Revo>E-Revo Revolver 700-HO
Motor Conversion

[nitrolijah72]

LOL....It comes with all that you need trust me and you will be up and running in no time....

[J.A.T.O.3.3]

Hey Dan , could you tell me if the Revolver 700HO kit will fit without hitting the front Traxxas sway bar ?

[ajb1205]

I may be wrong, but I think they are both forward facing like the E-Maxx so front sway clearance won't be an issue.

[Kershaw Designs]

The sway bar would pose no problems. Both motors sit at the rearward motor position.

Dan Fischer
Dan@KershawDesigns.com