New Zz Pcb Mod - Page 2

Namuna · #16 10-09-2002, 11:17 PM

You're in the ZZ (ZipZaps) subforum bud...This is NOT for Bits/MicroSizers.

#17 10-10-2002, 01:16 AM

I did it with NOS and the red gears. Nice. I'm gonna see if it can power my MS 2.6 now. IT couldn't before.

#18 10-10-2002, 01:24 AM

Powers the 2.6 effortlessly with a stock battery. Runtime is reduced severely with the NOS motor versus the resistors not being jumpered, even more severely with the MicroSizers 2.6 motor, but damn the 2.6 is fast now. Before this mod, I could only "rock" the car back and forth about 1/2 inch with the 2.6. Now it takes off.

Two Thumbs up. Also, I can't think of a reason I'd need excessive runtime of over 2 minutes. I don't mind charging it every few, as long as I can make a run through a large autocross course or make a drag race run I'm happy. My batteries aren't fully charged so I'm in no position to give you a runtime breakdown. It seems like about a 50% drop in runtime, longer than 2 minutes but not by much.

Just an FYI - Put the Control or Performance motor in and I bet you'll get good runtime. This is a lot like tuning real cars. You put a turbo, exhaust, headers, ported/polished head, stroke and bore it, and then you go out driving like a maniac, your fuel economy will suck. I wouldn't expect any different with what we're doing to our Zaps.

catman25 · #19 10-10-2002, 10:41 AM

do yall think it will run the 3.8 and is there any reverse side effects ??could i take the soldier off and will it go back to norm ???thanks -cat-

#20 10-10-2002, 12:06 PM

I have a 3.8 on order. I'll let you know when it gets in. This isn't a mod for people who are new to soldering though. REMOVING the solder will be even more difficult, but in theory it should be back to normal when you remove the excess solder, as long as the surface mounted resistors will stay put!

catman25 · #21 10-10-2002, 12:31 PM

so can we get a def. way of doing this ???cant you just remove the chips and soldir a line in place ??

joeNuggetz · #22 10-10-2002, 02:27 PM

Interesting thread. How does this compare with a ZipZap with a Microsizer/Bit circuit board? That's what I run in all my Zips. I'm curious if this mod makes the Zip board pump out more juice to the motors than an bit board. Can someone test out the readings?

Thanks
nugz

go_zz_go · #23 10-10-2002, 02:39 PM

well idid it. good results the only thing is that i hate soldering and some how the resistors came off while i was bridgeing them together well twenty minutes after i charged up i am still running strong well what is wrong do i need to put the resistors back?

joeNuggetz · #24 10-10-2002, 02:52 PM

Good job Oz. That sounds like a good idea.

#25 10-10-2002, 03:13 PM

Quote:

Originally posted by Ozmotear
I just completed this Mod. I used PC jumpers and soldered em in at the base of eact connector. Now if I want battery life i just remove them.

I'll post some pics soon.

Welcome aboard crazy foo!

hit me up on AIM if you see this. Maybe we could post some pics too

#26 10-10-2002, 04:39 PM

Quote:

Originally posted by gpile

This mod allows forward and reverse to work and boosts the current supplied to the motor by 25% from a somewhat charged battery of 1.22volts before the mod I saw 97ma after I was getting 125ma. A fully charged battery no doubt would bump the current more.

I assume you are were measuring that current between the terminals of the motor?

After the mod on a full battery I saw 150ma.

Did you do any voltage measurements? I am only seeing .9XX volts to the motor, I forgot to check before the mod though.

I guess this makes sense though that voltage would drop as resistance was decreased according to Ohm's law...

SlackerZ · #27 10-11-2002, 03:36 AM

I did the mod but removed both resistors as well. I'm impressed with ozmotear's soldering the pc jumpers. My first resistor just slid of and the second stuck to the tip of the soldering iron and I just assumed it was cooked. I think my zip is faster but I can't be sure. I'm planning to back off zips for a while untill I find a nice grey 911 and start anew with that one...my rx7 is turning into frankenstein's monster.

hogjowlz · #28 10-11-2002, 09:14 AM

I dont understand how soldering a few short wires on a circuit board can increase battery capacity. can you explain this?

lowerdfool · #29 10-11-2002, 10:04 AM

it's not increasing battery capacity. it's increasing the current from the battery through the board and to the motor. the circuit board restricts the flow of current and he's making it so it's not so restricted..... IE "resistors"

hogjowlz · #30 10-11-2002, 11:18 AM

oops my bad