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glassdoctor
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03.18.2008, 11:00 PM

Yeah... and the cool thing is this kind of Baja is much lighter than the real deal so it doesn't require an insane type motor/esc/battery setup as the 25lb car would need.


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lydiasdad
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03.18.2008, 11:15 PM

Quote:
Originally Posted by glassdoctor View Post
Yeah... and the cool thing is this kind of Baja is much lighter than the real deal so it doesn't require an insane type motor/esc/battery setup as the 25lb car would need.
exactly. Plus there are tons of maxx hop -ups that can be used. Arms, diffs, tires, etc.
   
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othello
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03.19.2008, 07:29 AM

>What kind of runtime do you get with hard running like that. What speed are you geared for?

Runtime hovers between 6.5-8 minutes when driving this way.
. 10s1p A123 (2300mah) setup: Eagletree logs showed: Average amp draw was between 18-22A @30V -> 550-650 Watt average.
. 6s2p A123 (4600mah) setup: calculated from runtime the average amp draw must have been between 35-42A

Gearing:
Both truggys were not geared properly for those short straights. Motor temperature was too high.

. 10s1p A123 setup: 1:14.56 and the motor reached 32000rpm. Calculated top speed: a bit less then 40mph with ballooning badland tires.
. 6s2p A123 setup: 1:15.11 with an estimated motor rpm of 38000rpm. Calculated top speed: a bit more then 40mph with GRP Grip tires.

While driving we both said that the 6s2p A123 setup was a bit faster. But this is hard to tell when driving on such a small place.


Brushless 1:5 custom 4wd Baja based on 1:8 truggy chassie
Jazz 55-10-32, Neu 1515/2Y (1100kv), 9s2p A123 (27v), up to 3.1KW
Latest video with eagletree Data inserts: Run on asphalt

Last edited by othello; 03.19.2008 at 07:54 AM.
   
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Using yur Pics
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Fast5sRevo88
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Using yur Pics - 03.19.2008, 01:56 PM

The buggy is awesome, it is very inspirational, really. Do u mind if i use the pics as a reference for building my own? Of course it won't be an exact replica, that would be impossible. Felt kinda stupid about asking the servo question, didn't see previous posts, just now getting hang of using the forum.
   
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