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  (#76)
Mod Man
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02.01.2008, 11:26 PM

Honestly, it is not the motors that concern me but the batteries and ESCs. To achieve decent wattage, high capacity cells will be needed. Then high amp ESCs will be needed. This is going to get expensive very quickly.

Matt
   
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  (#77)
Promod
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02.02.2008, 01:27 AM

Blew the dust off my old eagle tree data. I have 4 different motors that were tested on 12 cells. A Hacker 7XL, Hacker 9L,basic 4200 and XL3100. All pulled over 1000 watts with the XL3100 being the highest at 1200 watts. But the Hacker 7XL was the fastest in the truck. Ran 4 or 5 different dual motor setups but can't find any data on them.
At least for me larger motors always seemed to run higher top speeds. They seemed to be able to pull a much higher gear compared to a smaller motor.


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  (#78)
snellemin
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02.02.2008, 01:39 AM

I agree Promod...that old saying....

No replacement for displacement.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
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  (#79)
jzemaxx
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02.02.2008, 04:14 PM

I think 2 Nemisis 6XL's and 2 9920's would be a solid combo on 3S. Will need some heavy duty 3's though.
   
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  (#80)
BL_RV0
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02.02.2008, 04:15 PM

30c fp's.


Get me back into RC!
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  (#81)
Mod Man
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02.02.2008, 06:30 PM

Quote:
Originally Posted by BL_RV0 View Post
30c fp's.
Oh, yes, my favorite cells!

Matt
   
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  (#82)
SpEEdyBL
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02.03.2008, 04:34 AM

Quote:
Originally Posted by Promod View Post
Blew the dust off my old eagle tree data. I have 4 different motors that were tested on 12 cells. A Hacker 7XL, Hacker 9L,basic 4200 and XL3100. All pulled over 1000 watts with the XL3100 being the highest at 1200 watts. But the Hacker 7XL was the fastest in the truck. Ran 4 or 5 different dual motor setups but can't find any data on them.
At least for me larger motors always seemed to run higher top speeds. They seemed to be able to pull a much higher gear compared to a smaller motor.


Promod

The wattages for the motors you tested would be completely differnt on lipos i bet. If two 6xls are used and the amount of batteries required, you may end up with more than a 10 lb setup.


Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy

http://www.rc-monster.com/forum/show...894#post367894

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T.R.C.R.
   
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  (#83)
SpEEdyBL
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02.03.2008, 04:37 AM

Quote:
Originally Posted by jzemaxx View Post
I think 2 Nemisis 6XL's and 2 9920's would be a solid combo on 3S. Will need some heavy duty 3's though.
I wouldn't use warriors. Throttle control is very, very important w/ highspeed setups.


Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy

http://www.rc-monster.com/forum/show...894#post367894

Area 52 Ranch Raceway
T.R.C.R.
   
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  (#84)
Serum
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02.03.2008, 04:38 AM

the 25C enerland cells seem to hold their voltage better than the 30C's!

two 6XL's on 3S?

that makes no sense at all.
   
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  (#85)
Mod Man
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02.03.2008, 09:15 AM

The best cells I have run from a voltage drop perspective are my EVOs. My Thunder Power Extreme cells were very good too, but they do not last long under the abuse I put them through.

Matt
   
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  (#86)
jzemaxx
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02.04.2008, 03:46 PM

Ok found out some of the other setups....don't know the gearing on them, but they are all limited to 10lbs mins and 3S or 10cell so that evens the playing field up.

2- e-savages - 1 dual MM5700's, 1 -running Neu 1515-1D

6- emaxx's - 2 running dual Velineons (one of them mine), 1-Novak 4.5, 1-running dual 7XL's, 1 running dual Nemesis 6XL's, 1- running twin BK 6L's.

1 - E-revo running 6.5 Novak

1- T-maxx running twin Lehner basic XL4200's

A few others are entered, but running brushed setups and I don't think they will be contenders....

Should be an interesting turnout.
   
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  (#87)
Promod
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02.04.2008, 03:50 PM

Sounds like a very cool class!! I would love to build a truck for it. Also like the cell limit and weight limit.
Make sure and take some pictures/vids and lets us know what happens.


Promod


IF it's cogging your not pulling the trigger fast enough!!
Brushless from the Start!
   
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  (#88)
jzemaxx
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02.04.2008, 03:54 PM

Yeah should be...I'm in the middle of building my other truck/setup as the race isn't till the end of the month. That is why I started this post for some advice. Talked to a few people and twin Neu's were out since the cans hit each other with anything smaller then a 62 spur, so I went with twin Nemesis 6XL's and twin 9920's. We''ll see how it runs.
   
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  (#89)
Promod
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02.04.2008, 04:03 PM

Should run good. You will be surprised at how high you can gear it. If your allowed to run with no body I found that gains a little speed. Just don't wreck


Promod


IF it's cogging your not pulling the trigger fast enough!!
Brushless from the Start!
   
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  (#90)
jzemaxx
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02.04.2008, 04:33 PM

Have to run with a body.....booooo..lol
   
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