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Originally Posted by jhautz
Where is that track? They actually race monster trucks on asphult? I've never seen that, but it looked like fun. My favorite part was when the turn marshall though you were flamed out.:005: Happens to me all the time too. I normally just blip the throttle and they figure it out. I had one moron that picked it up and then held it by the wheel so I couldnt touch the trottle without risking injury to him. He carried it all the way back to the pits and then set it down and then I took off again. You should have seen his face when I took off. He almost shit his pants.:005:
About the Quark sparks: I'm wondering if with all of the cracks in the case and cutting you did if something like a little aluminum chip or something wasnt loose in there and shorted something out. Could have shorted accross the battery input leads and just disitigrated. My suspision is though that brian is probably right. Its running, but not at its full potential and you may have future problems. I certainly hope thats not the case though.
So what made you want to do that cooling mod? Did you try it and have some sort of heat problem with just using the heatsink. I wouldnt think that racing on asphault would be that hard on the esc. No hills and very little rolling resistance.
Sweet conversion. I love the fact that you got it done in the nick of time.
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That's at HobbyTown USA in Crystal Lake. They don't have a real track, so they do parkinglot racing every sunday.. fun all the same, and even had a jump on the track for the third heat lol.
I cleaned all the parts before assembling the Quark, so there would be .01% chance that a metal shaving caused the spark =\.
I did the mod because I know people have been heating their quarks quite a bit, and since I was running a 1512, and couldn't gear up anymore, AND, I run very hard, I figured I might as well do the mod, while I wait for the motor mount, and assemble the truck. I did the quark mod in my spare time. Just preparing for hot temps.
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Originally Posted by glassdoctor
first thoughts....
1. 135* after a run (even just 4 minutes) isn't that bad under race conditions on a warm day. I've seen my motor temp under 120 after a 30 min race but that was on a cold track. (50-60*?)
2. The packs should take very close to the same charge if they are paralleled the whole time. I would keep them hooked in parallel all the time... only separate them for charging. Don't know why/how they would be off that much... are you sure the charge wasn't interupted and restarted on the one pack or something?
Also... the 1836mah doesn't add up for 20 min of running. It's not right... can't be.
3336mah does sound about right... and even that is very efficient... under 170mah per minute. That's just a bit less than the best I saw when I raced my 8ight at that indoor track a while back.
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I'm still confused about the batteries.. I DMM'd the packs at work, and both were 21v. While charging, I had stopped one pack, about half way through, but wrote down the data, and added the two totals. and that was the pack that took 1hour and 20min.. I was monitoring the packs the whole time, and the pack that only charged for ~45min did it's cycle exactly as it should. but didn't put nearly as much back into the pack to peak it at 21v..
I'm gonna try and run the truck again for about 10-15min, and then recharge both packs again, and see what the stats are.
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Originally Posted by skellyo
It's a bit odd seeing Truggies slide around on asphalt like that. I dunno, it just seems a little redneck to me...the whole concept of racing off-road vehicles on flat semi-slick ground.
Good looking conversion though. I hope to get my LSP-R running soon too...if I can only find the time.
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Reffer to my reply to jhautz. Also, HobbyTown USA, may have a new track close by.. (in Huntley for anyone in my area), very large offroad track, that two people have been working on.. there's pictures of the new track, taken last fall, here:
http://www.chitownrc.com/showthread.php?t=5226&page=3 (scroll down 1/2 way)
Also, I ran the truck for about 2min after work today, and had a radio glitch, and hit my works mailbox at about 35mph. completely shattered the rear hub carrier, but no other damage at all.. took a chunk out of the mailbox post too.. that's a felony right? :(
note to self: turn off "race mode" before I run the truck again lol.