Just GPS clocked my fastest Maxx yet... 60.1 MPH

HiAmplidude · #1 11-15-2003, 04:03 PM

extended E-Maxx
All aluminum
SINGLE Hacker B50 9XL motor
24 cells
24/51 pinion/spur
Road Rage 40 series tires

60.1 real MPH... Woo hoo!

OptimaMan · #2 11-15-2003, 04:41 PM

HiAmp: Congrats! That is some serious speed from an Emaxx! What kind of controller are you using? A schulze?

-OptimaMan

HiAmplidude · #3 11-15-2003, 04:56 PM

Thanks man! I appreciate that!

Yea, the controller is the new Schulze 32.170 . It's seriously big and ugly, but does the job.

k_sw31 · #4 11-15-2003, 05:43 PM

HiAmp- That is sweet!!

You have any vid?

You may be the first to have an emaxx break 60!

Lets see 32 cells!

BTW, how hot is that waffle of silicon and copper getting with 24 cells?

HiAmplidude · #5 11-15-2003, 06:10 PM

No vid over 60 mph yet. I had the truck set up and ready to go, but I was alone with my 11-month old kiddo' today, so I'm just happy to have gotten out for the run.

I'll definitely get some video soon. I do have some 50+ MPH speed run videos from when it was running twin brushless though. Unfortunately, my circuit has been having terrible problems over the last 2 weeks, and I'm only getting about 66kbps upstream. If you have the patience for the download, you're welcome to check it out here:

Scroll way down to the one that has "50+ MPH" in white next to the link. (Right-click, save as...)

http://66.93.220.59/rcnuts/videos.htm

Maxxcrazy · #6 11-15-2003, 06:36 PM

And maybe if you didnt add all the aluminum, you'd be faster

k_sw31 · #7 11-15-2003, 07:02 PM

I dont think a few ounces in aluminum is gonna gain much, he has over 3 lbs in batteries on that sucker!

HiAmp- I think you should definatly take a look at these FAUP cells. On 24 cells, you'd have over a pound in weight savings.

These cells are nimh, with a capacity of 1950 mah. They are about as long as a sub c cell, but are about 5mm narrower than a sub c. Not to mention, 23 grams lighter than a GP3300. From what I have heard, they cannot deliver quite as much current, but make up in the weight/space savings!

I maybe ordering some soon to help break 60 mph in my rustler. I think they are seriously worth a look.

Check em out: http://www.battlepack.com/packs.asp

PS, nice 50+ mph vid! Bandwidth for me was 15-20 kbs, my dsl usually tops out at 45 kb/s.

HiAmplidude · #8 11-15-2003, 07:16 PM

As far as the batts go, a couple weeks ago, when I ran the B50 8XL motor, I would go through a set of 3300 mAH batts in about 2 minutes. The 9XL is a LOT more efficient, but with an ESC capable of delivering bursts of 225 Amps, I don't think I'm ready to run less capable cells quite yet. Maybe after my more efficient custom C50 XL gets here....

old phart · #9 11-18-2003, 05:18 AM

The 1950 UAP's couldn't cut it at the SAW races last weekend.

DualBL · #10 11-18-2003, 04:50 PM

why couldn't they?
-Nick

old phart · #11 11-19-2003, 03:12 AM

This is taken from the guy who sponsored the 2003 NAMBA SAW races in L.A. :

"First, 1950's will NOT take any abuse what-so-ever. We have found they fall off dramatically if they are recharged more than twice in a single day. Even charging at very low amps. I witnesses some of the best 1950's available in the world vent at 5 amp charge rate. You should see what happens to them when charged at 8 amps. Save your money - look elsewhere."

Craps · #12 11-19-2003, 07:13 AM

Go here: www.thunderpower-batteries.com

Check out the TP8000-5S4P 8000 mah (18.5 volt) battery packs.

Hacker has experimented with these in an E-Maxx and smoked the Hacker Master Competition ESC.

Brushless Motors and Lithium Poly Batteries, the future is here!

k_sw31 · #13 11-19-2003, 09:44 AM

Quote:

Originally posted by old phart
This is taken from the guy who sponsored the 2003 NAMBA SAW races in L.A. :

"First, 1950's will NOT take any abuse what-so-ever. We have found they fall off dramatically if they are recharged more than twice in a single day. Even charging at very low amps. I witnesses some of the best 1950's available in the world vent at 5 amp charge rate. You should see what happens to them when charged at 8 amps. Save your money - look elsewhere."

From what I have heard, they need to be treated similar to nicads. Also, keep in mind these are boats hitting in the 100 mph mark. They are charging at way to high of an amp rate for this smaller cell....I have heard you want to charge them at around three amps.

DCLXVI · #14 11-23-2003, 04:03 PM

I might be way of but aren't you supposed to keep the recharge current below or at 1C? With NiHM that is...