betty.k
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hey prez!! where you been at? i was gonna put out an apb on ya!:D:8ball:
i’m in! last time was a total whirlwind for me, be good to do it all again!:p:8ball:
yeah, what he said! maybe we can even revive the joint comp with bitpimps idea:8ball:
:Dhehe, gimme some time! i wanna goop one up with silicone or something to enable a bit of waterproofing. but til then i’m gonna have a go at some track cars:8ball:
not sure if i have the answer but turn the controller on before attaching the car to charge. that’s happened to me:8ball:
enertec micro chargers have them. they’re about $27 in dse and tandy stores. i’d be interested in taking the chassis’ of your hands if you want, lemme know:8ball:
well we finally got to test out a biff’ed zip zap se and the results are disappointing.:sad: pretty much halved the speed so there’s something about the se pcb that doesn’t turn the fets on properly or something like that. oh well, now that i’ve scored my new mustang and hemi cuda shells i don’t mind if it don’t go too fast now, can’t see them properly otherwise!:D:8ball:
hey there fish face! welcome to the boards:smiley2::8ball:
aarrrrr! ye be buyin rum with that gold me hearty!! aarrrr!!!!:8ball:
ANYTHING will do:8ball:
so, time to revive this sucker!
first, i wanna know how to custom make a sensor arrangement, i’m thinking maybe a magnet on a wheel with a steering coil wired to the contacts, am i on the right track?
next i wanna know how to calculate the geardown ratio and what sort of gears to use. let’s say the roller on my dyno has a circumference of 10cm. and i then set the wheel curcumference on the speedo to 100cm. am i correct in assuming a 10:1 reduction wil be the correct choice?
and what if i find a reduction gear i want to use, let’s say it’s 8.7:1. given that i know the curcumference of the roller, 10 cm, how do i calculate the figure to punch into the speedo:question::8ball:Edited by – betty.k on 20 April 2004 04:02:54
ok peeps, hachi sent me the pics to post so (hopefully!!) here they is!:p
here’s the quad cell firebird, looks fast standing still!



and here’s some pics of the “lowered battery” mod that allows for low center of gravity and the lowering of flat shells even with a flipped pcb.






if those pics turn into X‘s then try here: http://www.geocities.com/bettyk3332003/hachimods.html?1082391083281
and if that fails, try this webshots album: http://community.webshots.com/album/135656737qEtQbh
and if none of that works then we’ll know that the gods will it not to be!!:D:8ball:
YYEEEEEEEEEEEEEEEHAAAAAAAAAAAAAAAWWWWWW!!!!:D:8ball:
yeah, i noticed that too. perhaps mount the extra batts on the front somewhere (diffucult) or some sort of fin/spoiler on the front. i realised very quickly on the day why 1:10’s are mostly 4wd. without it they’d never make it around the track at the speeds they do:8ball:
i wouldn’t get too excited about crush gear motors. i’m guessing that they’re just regular crappy motors with pretty stickers and packaging:8ball:
if he “goes down” occasionally then i’d say yes!:D:8ball:
tim, aaron is purchasing a bulk order of (i think) fets for z’s. check it here http://www.ausmicro.com/topic.asp?TOPIC_ID=2005&FORUM_ID=6&CAT_ID=4&Topic_Title=HELP%21+Any+Melbournite+with+IRF7389+FETS%3F&Forum_Title=Mini%2DScale+%2D+For+Sale+%7C+Wanted+%7C+Trading&whichpage=2:8ball:
i’d say that’s a good thing considering the amount of high speed knocks that baby copped!:D:8ball:
i reckon that buggy would be fun! for $30 you can buy 2 and bash the crap outta one while you get used to the size and handling.:8ball:
i think with the onset of winter, every outdoor rc enthusiast is gonna be working on this one! i know i is! (bloody melbourne weather!!):8ball:
ouch! sand is a killer! but just too tempting to pass up!:D:8ball:
to you!!:smiley2::8ball:
you idiot!:D:8ball:
ok gang, review number 1!:p
i got one of these placed in my sweaty little hands by the man himself today. he gave me a quick but thorough lesson on where each wire goes and it seemed to make sense. so i thought about installing this turbo into my slowest car, but i thought “let’s go for gold! so i cracked open my fastest bit (my ferrari) and performed some minor surgery!THE TEST SUBJECT:
enertec chassis
dual 150mah nicad
lxx 2 speed pcb with IRLML2502TR fets
zz nos motor
7.1:1 gearsetinstallation was simple, and as this replaces the 4 drive transistors they can be completely removed. so now i can use those fets on another board or fet the steering. i checked a few things before installation for a before and after comparison.
i did the patented hold the rear wheels trick and go forward. previously the car would turn til the nose pointed straight down. after, it pointed 45 degrees further! vast torque increase!
next i took it outside and i can safely estimate a 10 – 20% increase in boosted speed and a 30 – 40% increase when unboosted. this is definately due to the massive increase in torque.
before, it was difficult to get a wheelie out of this car as it has a low centre of gravity. after it was difficult to get a wheelie out of this car as it has so much torque it just flips onto it’s back when you go reverse then forward!:shock:
i checked the motor temp periodically through the run and i didn’t notice any increase at all, which is a good sign that motors won’t die quickly.
so in summary, you’re gonna hafta pry this outta my cold dead hands if you want it back ph2t! absolute killer mod, me want many more!!:p:8ball:nice work man! the vents are turning this into a mean lookin’ mofo:smiley2::8ball:
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