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brushlessboy16
Im not dark, Im over ripened! xD
 
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09.02.2009, 09:26 AM

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Originally Posted by SpEEdyBL View Post
From my observation the Tekin 1900 (or a 1512 1.5Y) on 4s w/ zero degrees of timing is a hair more in power than the nitro engines. On 5s it just blows them away.

IMO, it's really runtimes that are the issue especially when the mains are 20 or 30 minutes long. I was running a 20 minute main at a large outdoor track, which I was leading for the 14 minutes by more than a half lap. But when I decided to change my pack at that point, it of course dropped me to second, almost third, and it was hard to adjust to the higher voltage of the fully charged pack. It's difficult because 4s 5000 mah charged to 90% (4500 mah) gives me 19 minutes of runtime geared 14/46. One tooth lower could probably give me that extra minute but it's risky.

One may say to get a bigger pack or go up in voltage and less mah, lower kv motor etc, but I don't really want to add the weight of a higher capacity pack, or have to deal with the higher center of gravity of a pack with more cells. The 1900 on 4s has proven to be a VERY efficient setup with VERY wide gearing range.
+1

throughout a main you adjust to the speed and power very slowly. but after a battery swap its hard to get a rhythm back.



Does anyone know what the averyage MAH per minute on a buggy is with a 15 series on 4s?


Benjamin White
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zeropointbug
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09.02.2009, 12:07 PM

Buggy on 4s = ~250mah/min @ track

My Revo on 6s/4200 pack = ~160mah/min @ track

Mind you that is two different owners here.... the buggy number is from a guy at the track, he's fast around the track, and still uses a 'nitro finger' for throttle, so that number should go down as he adjusts.


“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens

Last edited by zeropointbug; 09.02.2009 at 12:08 PM.
   
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brushlessboy16
Im not dark, Im over ripened! xD
 
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09.02.2009, 01:03 PM

Quote:
Originally Posted by zeropointbug View Post
Buggy on 4s = ~250mah/min @ track

My Revo on 6s/4200 pack = ~160mah/min @ track

Mind you that is two different owners here.... the buggy number is from a guy at the track, he's fast around the track, and still uses a 'nitro finger' for throttle, so that number should go down as he adjusts.
sweet.

My 8ight comes up at 8lbs flat in race trim with a 1515, 4s 5000mah pack, bow ties and a personal transponder.

anyone else know there specs?


Benjamin White
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Ryu James
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09.02.2009, 06:44 PM

thats cool. my 8ight 2.0 comes in at EXACTLY 8lbs also. that is with bow ties, 5s 3850mah, hacker c50 7xl in a tekno 44mm mount, my homemade 3mm carbon chassis, and pers. transponder too.


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Last edited by Ryu James; 09.02.2009 at 06:55 PM.
   
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brushlessboy16
Im not dark, Im over ripened! xD
 
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09.02.2009, 11:37 PM

My pack (4s 500mah) took a little over 2500mah after an 11 minute run. seems about right.

ryan, did you get my last email?


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Ryu James
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09.03.2009, 02:24 AM

Quote:
Originally Posted by brushlessboy16 View Post
My pack (4s 500mah) took a little over 2500mah after an 11 minute run. seems about right.

ryan, did you get my last email?
yeah got your email. just sent reply. started on reply yesterday and got interrupted.


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zeropointbug
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09.03.2009, 01:08 PM

That's a beauty track, I would love to be on that surface for a day!

James, I think he says "just a tad faster than the ICE buggies..." ICE = internal combustion engine.


Aqwut, NO, nahuh! lol I am not sure whether they just suck or I am that much better, but I do know that on practise sessions I was passing lot's of buggies and truggies and they couldn't keep up. I had the suspension very low, P-3 rockers in rear, the rear skid was almost dragging when on power, crimefighter LPR's, handled wicked anyways. Should gain an even gibber lead once I lower the CoG of it, check my thread on it...


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zeropointbug
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09.03.2009, 01:11 PM

Oh, and James, which model Hyperion charger do you have?

If you have one of the fairly newer units, then all you do is push mode ONCE after the charge has ended, that will bring you to the other screen that tells you mah put into the pack.


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kalbien
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09.04.2009, 07:47 AM

Quote:
Originally Posted by zeropointbug View Post
If you have one of the fairly newer units, then all you do is push mode ONCE after the charge has ended, that will bring you to the other screen that tells you mah put into the pack.
if you have one oof the older ones you push that button that you change battery type before charging....
   
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aqwut
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09.02.2009, 11:40 PM

I agree with the skills.. I'm still lacking in that department.. and for almost a decade already.. haha

ZeroPointBug... You wonder if you are that great of a driver?.. LOL Truth is, the guys you race with just sucks... hahaah J/K

When I race at my track, I have to set it all the way down to 40MP to run.. even that is almost too fast... but the brushless really have an advantage on the oval track.. offroad, not so much.. but that's from our local track.... But it does make a difference.. Tires, Servo and Weight....


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The Dan
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09.03.2009, 12:48 AM

http://www.youtube.com/watch?v=tCSjK2gzxBE

Listen at 3:08 minutes in.
   
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Ryu James
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09.03.2009, 02:24 AM

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dude, those drivers are f***ing amazing! they take every corner as tight as possible and perfect every time. that is probably the best video i have seen that displays the skill of the pros. all the other vids i have seen it is hard to tell if they are any better than the average club racer.

so what did he say at 3:08? how many volts are they running on? and the are a "tad quicker" than what?


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Byte
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09.04.2009, 08:00 AM

Just a question, but which cars are the best/make the fastest lap times? Probably 1:8 4WD buggy's, right? But what comes after them, and after them? (I hope you get what I mean lol) I think it is, 1:8 4WD Buggy, 1:10 4WD buggy, 1:8 4WD truggy, am I right?
   
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brushlessboy16
Im not dark, Im over ripened! xD
 
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09.04.2009, 08:42 AM

at my track truggies are turning laps comparable to buggies maybe a half second off.. think it might depend on the track


Benjamin White
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lambchops
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09.05.2009, 04:57 PM

truggys are quicker at our track but its quite bumpy so they have the advantage


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