Go Back  R/C Tech Forums > General Forums > Electric Off-Road
Tekin 1550kv vs 1350kv (Truggy) >

Tekin 1550kv vs 1350kv (Truggy)

Tekin 1550kv vs 1350kv (Truggy)

Reply

Old 04-10-2011, 05:00 PM
  #1  
Tech Elite
Thread Starter
iTrader: (25)
 
T. Herwig's Avatar
 
Join Date: May 2009
Location: Somerset, PA
Posts: 2,373
Trader Rating: 25 (100%+)
Default Tekin 1550kv vs 1350kv (Truggy)

I'm planning on converting to a low kv/high cell count setup. My goal:

To make 20 minute mains with nitros...

My question here is, would I be capable of making a 20 minute main with these setups:

1350kv/6S RC8TE

vs

1550kv/6S RC8TE

It seems possible but has anyone had any personal experience? How many mah packs did you use? Any specific settings? Obviously the 1350kv is going to get better runtime, but is it still possible using a 1550kv setup or no?
T. Herwig is offline  
Reply With Quote
Old 04-10-2011, 06:37 PM
  #2  
Tech Lord
iTrader: (32)
 
SuperEk4's Avatar
 
Join Date: May 2006
Location: Singapore
Posts: 10,333
Trader Rating: 32 (100%+)
Default

I ran 1350kv neu motor with x2 CRT with zippy 6s [email protected] Mah. Geared 15/46 managed to get 28mins

Good speed n cool temp.

I raced 1600kv medusa v2 motor it can last 20 mins also but the 1350kv lasted longer.

Originally Posted by T. Herwig View Post
I'm planning on converting to a low kv/high cell count setup. My goal:

To make 20 minute mains with nitros...

My question here is, would I be capable of making a 20 minute main with these setups:

1350kv/6S RC8TE

vs

1550kv/6S RC8TE

It seems possible but has anyone had any personal experience? How many mah packs did you use? Any specific settings? Obviously the 1350kv is going to get better runtime, but is it still possible using a 1550kv setup or no?
SuperEk4 is offline  
Reply With Quote
Old 04-10-2011, 06:43 PM
  #3  
Tech Elite
iTrader: (58)
 
8ight-e's Avatar
 
Join Date: Jan 2009
Posts: 4,168
Trader Rating: 58 (100%+)
Default

Originally Posted by T. Herwig View Post
I'm planning on converting to a low kv/high cell count setup. My goal:

To make 20 minute mains with nitros...

My question here is, would I be capable of making a 20 minute main with these setups:

1350kv/6S RC8TE

vs

1550kv/6S RC8TE

It seems possible but has anyone had any personal experience? How many mah packs did you use? Any specific settings? Obviously the 1350kv is going to get better runtime, but is it still possible using a 1550kv setup or no?
I ran a 1350, not enough rear (torque) on 6s if you ask me, go w/ the 1550 for sure. Can gear either fine for long races and simliar top ends, I think the extra rpms helps the 1550 give you a blast when needed. Just an opinion though

1500 - 1700 on 6s
1700 - 1900 on 5s
1900 - 2200 on 4s
2200 - 2600 on 3s (buggy only)

Again personal preference
8ight-e is offline  
Reply With Quote
Old 04-10-2011, 06:56 PM
  #4  
Tech Elite
Thread Starter
iTrader: (25)
 
T. Herwig's Avatar
 
Join Date: May 2009
Location: Somerset, PA
Posts: 2,373
Trader Rating: 25 (100%+)
Default

Originally Posted by SuperEk4 View Post
I ran 1350kv neu motor with x2 CRT with zippy 6s [email protected] Mah. Geared 15/46 managed to get 28mins

Good speed n cool temp.

I raced 1600kv medusa v2 motor it can last 20 mins also but the 1350kv lasted longer.
Did you make the 20 minutes with ease on the 1600? Or was it very close? What kind of track was it? Technical or a lot of wide open throttle?

Originally Posted by 8ight-e View Post
I ran a 1350, not enough rear (torque) on 6s if you ask me, go w/ the 1550 for sure. Can gear either fine for long races and simliar top ends, I think the extra rpms helps the 1550 give you a blast when needed. Just an opinion though

1500 - 1700 on 6s
1700 - 1900 on 5s
1900 - 2200 on 4s
2200 - 2600 on 3s (buggy only)

Again personal preference
How was runtime for your 1550kv? I'd like to with that as I can always dial it down if I need to, but remember, my number 1 priority here is to be able to make the 20 minute mains.
T. Herwig is offline  
Reply With Quote
Old 04-10-2011, 07:06 PM
  #5  
Tech Adept
iTrader: (5)
 
Join Date: Jun 2009
Posts: 231
Trader Rating: 5 (100%+)
Default motors

I'm not sure about in a truggy but it should be similiar. With mechanical brakes on my buggy I can run 1550kv on 6s 2650mah and get 15 min, my 5000mah battery is probabaly almost 30 I've never run it down all the way yet. On 6s its faster then i can keep in a straight line if I get in it.
hontrx265r is offline  
Reply With Quote
Old 04-10-2011, 07:09 PM
  #6  
Tech Elite
iTrader: (58)
 
8ight-e's Avatar
 
Join Date: Jan 2009
Posts: 4,168
Trader Rating: 58 (100%+)
Default

Originally Posted by T. Herwig View Post
Did you make the 20 minutes with ease on the 1600? Or was it very close? What kind of track was it? Technical or a lot of wide open throttle?



How was runtime for your 1550kv? I'd like to with that as I can always dial it down if I need to, but remember, my number 1 priority here is to be able to make the 20 minute mains.
so much has to do with the track, the conditions and the driver. With that said you can easily make 20minutes w/ the right battery and that motor combo. Figure out how much mah/min you use once you have it setup and you can get the smallest battery to accomodate your needs to hit 20min. If you must have one to start with for testing you should be pretty safe getting a 6s 4500mAH to make a 20min main w/ a truggy. If you are not sucking it dry you could try to get a little smaller pack, I would be scared to have any less than that to start with until it's tested w/ your basic style and conditions.
8ight-e is offline  
Reply With Quote
Old 04-10-2011, 07:29 PM
  #7  
Tech Elite
Thread Starter
iTrader: (25)
 
T. Herwig's Avatar
 
Join Date: May 2009
Location: Somerset, PA
Posts: 2,373
Trader Rating: 25 (100%+)
Default

I've been reading around everywhere, and the 6S/1350kv setup seems to be more efficient. My only issue is will it be "powerful" enough for me and provide the speed I need in the Truggy. Looking for as many opinions on the 6S/1350kv setup that I can get. Keep them coming if possible guys!

Thanks for the opinions so far.
T. Herwig is offline  
Reply With Quote
Old 04-10-2011, 08:16 PM
  #8  
Tech Lord
iTrader: (32)
 
SuperEk4's Avatar
 
Join Date: May 2006
Location: Singapore
Posts: 10,333
Trader Rating: 32 (100%+)
Default

Originally Posted by T. Herwig View Post
I've been reading around everywhere, and the 6S/1350kv setup seems to be more efficient. My only issue is will it be "powerful" enough for me and provide the speed I need in the Truggy. Looking for as many opinions on the 6S/1350kv setup that I can get. Keep them coming if possible guys!

Thanks for the opinions so far.
Yes don't worry tekin 1550kv has enough power to last 20mins. Use 6s 5000mah or more gear 13-15 pinion.

I tried it before
SuperEk4 is offline  
Reply With Quote
Old 04-11-2011, 04:24 AM
  #9  
Tech Master
iTrader: (21)
 
gtsakiris's Avatar
 
Join Date: Sep 2009
Location: The Demolished Shore, NJ
Posts: 1,078
Trader Rating: 21 (100%+)
Default

Originally Posted by 8ight-e View Post
I ran a 1350, not enough rear (torque) on 6s if you ask me, go w/ the 1550 for sure. Can gear either fine for long races and simliar top ends, I think the extra rpms helps the 1550 give you a blast when needed. Just an opinion though

1500 - 1700 on 6s
1700 - 1900 on 5s
1900 - 2200 on 4s
2200 - 2600 on 3s (buggy only)

Again personal preference

With much experience, and money wasted I'd have to agree. The 1350/6c will def give you more run time like maybe 20mins or so, I dont really think the 28 min suggested above is doable everytime. That guy musta babied it the whole time. The down side with the 1350 is that it doesnt have enough wheel spin when needed and when you are looking to correct the truck in the air you are grabbing for trigger that's not there. The 1550 is def. the better motor at the expense of more mah used. I feel the 1550/5c is the best setup which I run now. A little lighter/power ration. I have even used the 1550/6c, and that's def. faster and the route I think you'll go with.
Its in the end the track and the driver. Last week I used 220mah per min in my heats with 1550/5c. In the main the pace was faster and comp was more that I was using 323 mah per min. It took my 25min runtime in heat to 18mins in the main.
I was shooting for the 25min mark when I approached this topic a year ago, its just not feasible to have a truggy that can go the distance, and be a performer all on one pack.. the downside is that you can make it technically feasible just at the cost of being a lead sled. Go for a quick change theory. If you seach this thread for a quick change you see we ve been talking about it recently. My sponsor and I devised such a system in my 8t2.0(e) that we pit in about 10seconds, in and out with no body removal. this concept and theory is not for the novice racer or lipo user. Until it is, the only way to race nitros and win is to quickly change the battery. Keeps truck lighter and adheres to the rules. if they gonna make you pit, why stop and go without new juice!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! my takes are:
1350-1550-6c
1550-1700-5c
1700-2000-4c
2000-2200-4c
gtsakiris is offline  
Reply With Quote
Old 04-13-2011, 02:35 PM
  #10  
Tech Adept
iTrader: (26)
 
Join Date: Feb 2009
Posts: 235
Trader Rating: 26 (100%+)
Default 20 minute main made here

I just completed a 20 minute main 4-9-11. Tools used the rc8te running the Losi 1300 kv with a 6s 5000 blue lipo. Truggy geared 14/50 good speed was able to clear triples throughout the race but took the route to double then single. I do race sportsman class so I may not be as fast as the pro class but I'm also sure a pro driver would be smoother on the trigger than I so less wheel spin
Just my 2 cents
Motor came off at 130 degree
By no means I'm I the best driver but I did make a 20 min main
With 21 laps complete on a fairly large track
My average lap time was around 50-56 secs
While the pros were turning 45 sec
This was my first race with this Losi not a bad little motor
winstoncup is offline  
Reply With Quote
Old 04-13-2011, 02:40 PM
  #11  
Tech Elite
Thread Starter
iTrader: (25)
 
T. Herwig's Avatar
 
Join Date: May 2009
Location: Somerset, PA
Posts: 2,373
Trader Rating: 25 (100%+)
Default

Thanks everyone! I ended up going with the 1350kv/6S setup after getting many opinions. I will update this thread when I actually get to test it!

Thanks again!
T. Herwig is offline  
Reply With Quote
Old 04-13-2011, 02:47 PM
  #12  
Tech Master
iTrader: (21)
 
gtsakiris's Avatar
 
Join Date: Sep 2009
Location: The Demolished Shore, NJ
Posts: 1,078
Trader Rating: 21 (100%+)
Default

Originally Posted by winstoncup View Post
I just completed a 20 minute main 4-9-11. Tools used the rc8te running the Losi 1300 kv with a 6s 5000 blue lipo. Truggy geared 14/50 good speed was able to clear triples throughout the race but took the route to double then single. I do race sportsman class so I may not be as fast as the pro class but I'm also sure a pro driver would be smoother on the trigger than I so less wheel spin
Just my 2 cents
Motor came off at 130 degree
By no means I'm I the best driver but I did make a 20 min main
With 21 laps complete on a fairly large track
My average lap time was around 50-56 secs
While the pros were turning 45 sec
This was my first race with this Losi not a bad little motor
Just outta curosity what is the weight of your Lead Sled with the 5000mah 6 cell? If soley making the finish of the Main is your goal by all mean. A 5000mah 6c weighs, well........Toooooooooooooooooo Much to be any way competitive. All of the geometry of the truck is gone. Just my .02
The key with the higher voltage and lower kv is longer runtime due to voltage. if you are running the motor at full bore all the time because the low KV, you will create more heat. Ask randy pike from tekin. I am not fabricating hypothesis, facts from extensive testing of Ebuggies and Etruggies.
gtsakiris is offline  
Reply With Quote
Old 04-13-2011, 03:32 PM
  #13  
Tech Adept
iTrader: (26)
 
Join Date: Feb 2009
Posts: 235
Trader Rating: 26 (100%+)
Default Weight

I have no idea truck still runs and jumps pretty good. Goes through the air very level.
Turning left and right seems to not suffer at all
Yes I am a novice racer looking to finish a 20 minute main so that's what I'm looking for.
I just wanted to post my results
I'm sure the increase of weight will add wear and tear to some parts
So I'm my own R and D department
I'm only geared for about 34 mph not pushing the motor to hard I think
I could gear it for higher speeds but like u said more heat and less runtimes. I do think I am taking the right approach

I gear to pass in the infield and to keep up on the straights

Last edited by winstoncup; 04-13-2011 at 03:53 PM. Reason: More gearing info
winstoncup is offline  
Reply With Quote
Old 04-16-2011, 07:00 PM
  #14  
Tech Elite
Thread Starter
iTrader: (25)
 
T. Herwig's Avatar
 
Join Date: May 2009
Location: Somerset, PA
Posts: 2,373
Trader Rating: 25 (100%+)
Default

I'm in the market for 6S packs...

What fits? What doesn't?

Anyone with RC8TE's here that's done it?

1350kv/6S

I've been told that the "Blue Lipo 5000mah" packs will fit. Are there any others?
I found a good deal on 5800mah packs, but the weight on those is definitely "up there." Would 5800mah be complete overkill on this setup anyway? I plan on ordering this weekend so any opinions are appreciated.

PS: Any RC8BE owners, this applies to you too. The tray is the same size.

Thanks!
T. Herwig is offline  
Reply With Quote
Old 04-17-2011, 09:53 AM
  #15  
Tech Adept
iTrader: (26)
 
Join Date: Feb 2009
Posts: 235
Trader Rating: 26 (100%+)
Default Turnigy 5800

That's one huge pack. Stay with the 6s 5000.
winstoncup is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service