redfisher1974

should work fine just reset it and give it a shot...

Rodx

Hi !
Many thanks RedFisher for your pics... It's exactly what I was looking for...
Many many thanks

Rodx

DragracerArt

I loved the GPSidea so much... I did it. lol
I made about 4-5 runs up and down the street each time... I didn't want to overheat anything running WOT too many times.

I also swapped the stock 19t pinion DOWN to a 18t pinion to slow it down a bit...
Even with the GPS hanging on the nose, it still wanted to wheelie a little. lol

I will eventually do some runs in bone stock configuration... with 18 / 19 / 20 tooth pinions... and also with both 7.4 & 11.1 Li-po's

I expect it to get near 65-70mph with the 20T pinion and 11.1 Li-po's.

Here are the results:


With the 11.1v / 2100mah Eflite Li-po & 18T pinion: 53.8MPH




With the 7.4v / 5000mah Venom Li-po & 18T pinion: 47.6 MPH

lcb1978

Hi, will the mamba 7700 motor run on the stock Flux ESC, I'm thinking of upgrading my Brushless system in my Flux, not sure what to go with though

redfisher1974

your welcome...if you want i can get you a link for it....

redfisher1974

Hey dragracer that looks like way too much fun...thats fast....you probaly can add a few mph to that due to the wieght and air drag of the gps....

DragracerArt

Yep, I agree... and not to mention, I geared it slower too... by dropping to the 18t pinion gear.

I'll fool around with it this week and get some more "baseline" numbers... I'd like to see what the stock motor, esc & 19t pinion will do on 7.4 volts... just to get an accurate "out of the box" MPH... then test it on 11.1 volts.... then try the 18t & 20t pinions for comparison.

I really need to find another place to top-end this thing... The street in front on my house only gives me about 100-200 yards of dragstrip to get up to speed... and it seems to get really narrow @ 50+mph.

DragracerArt

sorry, slow connection = double post

Enzyme80

haha that is great.  i have to get my radar gun out (used to be for hockey and lax ) and take a few readings. I am sure its around 40 but i gotta keep the front end down first.

Rodx

Hi !
Yes I would...
Please let me know.
Thanks again and again

redfisher1974

Here you are.... http://cgi.ebay.ca/Yeah-Racing-YA-01...3A2%7C294%3A50

michajas

Could you tell me what exactly gives oil in diff ?? I read about it many times but I don't know what it gives?

DragracerArt

The only problem I have with this Novak unit is the junk fragile fan they put on the ESC.

I've just smoked a 2nd one.

All it takes is an eyelash sized piece of grass to jam it up and fry it.

I'm in the process of mounting a 40mm fan on it from Radio Shack.

The fan makes a huge difference in ESC temps... much more than the 20 degrees mentioned earlier. I was thrashing the heck out of my car and went through a whole 5000mah battery just ripping up a baseball diamond in the park down the street from my house. The esc never went over 120 degrees... and the motor stayed just as cool. I bought the Novak motor heatsink for it too, so I'm sure that helped some.
Once the fan jammed and fried, the esc went up to 200+ degrees.... so that said, a fan is a must on this combo.



The other problem I have... is keeping the front end on the ground. Even after flipping the rear arms to lengthen the wheelbase, it still wants to go over backwards. I'm only using the 7.4 Li-po's too.

Here's a pic of the fried Novak fan... and the Radio Shack fan I'm wire-tying to the esc. You can see the motor heatsink I installed too.

DragracerArt

Well... I guess this is a byproduct of too much motor... lol

I just had a blowout in the driveway.

I was doing doughnuts in a few light puddles in my driveway... and BOOM, the RR tire exploded. It sounded like someone popped a paper bag.

Off to the hobbyshop again dangit...

redfisher1974

You could try loosing the slipper clutch to control front end lift...but with that much power you might just melt the slipper.....

DragracerArt

Yeah... I was thinking about that too, but came to the same conclusion... I actually tightened it up about 1 turn, just so it wouldn't slip too much or melt.
Extending the wheelbase did help a bunch... but I still 'gotta be really carefull...

I just came home with a set of rims/tires... figured I'd try something a little different. They didn't have the factory 6-spoke rims, so I had to settle for a pair of 5-spokes instead. These are a tad taller than the HPItires were...

Also a sidenote on the fan installation... What a difference it makes ! ESC and motor temps have not gone over 120-130 degrees. Prior to the fan install, the ESC was hitting 220-230 occasionally. The motor never seemed to get hot though.

mrklaw

Hi,

Just bought an e-firestorm flux and have a couple of questions before I go back and start reading some of this massive thread

When I got it out of the box, the spring on the rear left shock was loose - just rattling up and down - should it be pressed up against the top and bottom? The adjustable collar was in the same position on left/right, so I don't know if the spring is slightly shorter for some reason.

And if anyone can recommend a good bodyshell for this I'd be grateful. Can be either a great, ready painted one, or a clear one that I can get custom painted. Mine is the stock white flux one and its fine but I'd like something a bit more aggressive.

redfisher1974

On mine you have to turn the collars down over half way before they even touch the springs....I run with alot of preload on mine...As for bodies you really only have a couple choices the stock one you can get in clear and paint it or ebay has lots of the stock painted ones....

DragracerArt

My rears are adjusted all the way to the end of the threads (stiff)
My fronts are only about 1/4" down from the top of the threads. (soft)

Mine seems to be pretty well balanced like that...

ElectricGuy007

Ouchies...
I know your running the GTB, but what motor are you running to cause the tire to rip apart like that? 3.5r?
I notice you have plenty of tread left on those tires, so you cant be burning rubber too bad. lol

redfisher1974

Yes he is running a 3.5 on 3s i think....

DragracerArt

Actually, I was only running the 2s Lipo when it happened... and it was still geared down a tooth (to 18t) on the pinion . lol


I've only had the car week...and the weather here has been pretty crappy... hence the lack of tire wear.
I think the freewheeling at extreme RPM's during a doughnut is what caused it to blow apart.

I'm just glad it didn't rip-up the body or break a rod end or control arm. I got off the throttle pretty quick. That flap of rubber could have done some serious "out of balance" related damage if I stayed on the trigger another couple seconds.

goingmad008

Hi to All

Just like to say what a great site

Just new at R/C got my new firestorm flux2 weeks ago very nice car and quick.
Just like to ask a question on pinion gears my car is stock for now and would like toknow if i change the standard pinion gear from 19t to a 20 t would the car go faster or slower

I am running a 4600mah battery not lipo

once again great site and it is going to be very good for me to learn how to do things

Thanks and awaiting for some replys

redfisher1974

Hello and welcome....Yes the larger the pinion the faster it will go...but it will decrease the torque and the motor and esc will run hotter.that being said i am running a 21t pinion on mine right now,but thats for onroad only as it would overheat offroad...for offroad i go down to a 18t pinion...The best way to gear your truck is with a temp gauge.Just check temps every few minutes and try to keep them under 160f .

DM31

Hi guys,

I don't have a HPIFirestorm Flux yet, but am planning to order one. I also need a charger and batteries (2s lipo).

What is the size of the battery compartment so I can make sure everything will fit when it arrives?

Thanks.