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View Full Version : 7 Cell Epoch Spec2 Dragster Spectacular!!


MicroRCracer
11-30-2002, 04:11 AM
Yes!! I was bored and decided to finally upgrade to 7 cells of nimh 120mah.. None of the cells would fit in the passenger area of the body and so i decided to go and upgrade to the single blower look to the tri-blower dragster "muscle machines" look.. The car contains my rehandwinded Armature to a lower turn along with my upgraded FET so i dont burn out the ESC. Power is defintely night and day compared to 4,5,6 cell modifications.. My speed checker is currently broken right now, but i believe this Epoch goes beyond 35 kmh or even more... I know it looks kinda awkward, but i do plan on refacing the three stacked batteries to make it look flush to the body or to make it look like somekind of crazy NHRA dragster motor... Runtime isnt that great, but just a little touch of the trigger, the car goes balistic like an uncontrollable angry beast. Top end is superb if i can get it on a grippy surface like a tennis court. Cant wait to try it out!! If i can get the rears to hook up perfectly, like on a carpet or any grippy surface, i believe this epoch will do wheelies since when i tested it out on the kitchen floor hitting reverse to forward rapidly, it did a wheely already. Right now, its a matter of tapping the trigger from slow to fast (like pan car direct drive style) which i do plan on testing at my friend's tennis court (excellent traction) for some pure topend speed!! I will try and get this on video asap so you guys will feel the rush and speed adrenaline that i excitedley feel right now!! I currently use a Mini-Z transmitter since it has adjustable steering travel to help this car from spinning out on turns.. Next project, 8 to 10 cells with a spacious impreza body since it allows it to fit more cells. Anyways, tell me what u guys think?:)

tinyrc
12-01-2002, 08:56 PM
WOW! I'd really like to see a video! What did you do to the FETs? Stack, replace, or ? What type did you use? Cool!

MicroRCracer
12-02-2002, 12:23 AM
hey tiny rc!!

I just stacked the FETS using parted Fets from another Spec2 electronic board..

e_lm_70
12-03-2002, 06:47 AM
Cool mod ... curios to see a video out off it.

My personal taste isn't in favor of massive budy cut for add bats.

There are on market a lot of nice & small NiMh bat, so better have little mAh but still a perfect body !

... just upset that you broke my 6cell record !

For go to 8 cell I need do buy some special cells ! ...

BTW for me 6cell are already enogh :)

e_lm_70

P.S: Epoch rulez !
When they will push more the market with more hip/pop/hup ... or we need to wait for kyosho to enter in the 1/43 arena ?

tinyrc
12-03-2002, 08:52 AM
Originally posted by MicroRCracer
hey tiny rc!!

I just stacked the FETS using parted Fets from another Spec2 electronic board..

Ah, so no idea what the part number or anything is? :confused:

TemjinNeo78
12-03-2002, 03:59 PM
suweet good job!

MicroRCracer
12-03-2002, 05:11 PM
Hey tiny!!

When i unscrew the board and turn it over next time, i will be sure to copy off the numbers off the FETS..

MicroRCracer
12-05-2002, 04:52 AM
I know its off EPOCH topic kinda, but i just wanted to share with everyone that Ive developed an 8 cell Modded Mini-Z Extreme Dragster, inspired by the tech development from my 7 cell Epoch Extreme Dragster..:D



Well.. Here is my other creation of being an originator innovator again....

e_lm_70
12-05-2002, 06:11 AM
I can't believe that you are powering the Mini-Z PCB with 9.6V (8cell)

Are you using a turbo ? If so it must also be a good turbo !

Just see that you love to add weight ...

I was thinking to add in my Mini-Z F1 12 1/3 AAA, for have in total 7.2V and 280mAh and till a lot of current out of the bat ...
Just skeptical about that the only change with 3x2 7389 FET is enough for keep alive my PCB.

e_lm_70

MicroRCracer
12-06-2002, 05:57 PM
e_lm_70,

Its all FET and capacitor technology my man and also getting helpp from the father who is an Engineer..

By the way, if you look closely at the picture, my batteries are nicad 1.25V instead of the regular 1.2v .. So, I am not running 9.6v, I am aactually running 10.00 volts... O yeah, the weight of the extra 4 batteries really keeps the weight down for stable high top-end speeds.. :D

e_lm_70
12-07-2002, 05:32 AM
Hi,

I have seen your AA 1.25V NiCd, I have as well some 1800mAh AA 1.25 NiMh, and some 700mAh AAA 1.25 NiMh are on the way home.

So far I till have to see a real difference between 1.2V and 1.25V batt.

As you well know fully charged (any Bat) they can run up to 1.5V ... so you can run up to 12V ...

About Engineering ... if I well remeber I till have a MSC in microelectronic ...

Can you post a PIC of the PCB with the part that you have updated ?

e_lm_70

P.S: I see you on Ebay selly your super 7cell ... surprise that you want to make a business out of it ... or just bored of epoch ?

MicroRCracer
12-08-2002, 04:05 AM
Sorry, I cannot post a picture of my PCB board, because my ex-buddy in the past became a jealous perpetrator backstabber in claiming ideas as his when it was really mine and that is why I desolved his relationship in no time.. For now, i would like to maintain it as a tradeskill secret like people do and as allowed in these forums and especially in Mini-Z racer forums... I figure, i worked hard to develop my work and so they should pay their dues as well in figuring out..

e_lm_70
12-09-2002, 09:48 AM
Just tried out my Mini-Z X-Speed and my Epoch 6 cells on a carpet Track.

They both have similiar top speed, but the Epoch can't compete in the lap time ... it is too narrow, the Mini-Z F1 can take turn far faster while the Epoch at same speed will roll ...

Controll such a fast narrow car on a carpet track it is very tricky ... I don't know how somebody can say that Epoch can compete with Mini-Z ...

BTW the other guys on the track were running 1/24 WWS 6cell with 180 motor ... my Mini-Z F1 have been smoked out ... waiting for my S02 and my 7389 FETs to see if I can close the gap ...

If I manage to go to california for Work ... I'm courios to check-out the true about the driving skills of MicroRCracer ... ;)
Only with a video I can start to believe that the Epoch can compete with a Mini-Z !

e_lm_70

BTW: Epoch is till the best RC for drive at home!

tinyrc
12-09-2002, 01:49 PM
e_lm_70, is the WWS popular in Austria?

e_lm_70
12-10-2002, 01:22 AM
Originally posted by tinyrc
e_lm_70, is the WWS popular in Austria?

Don't really know ... just have been inside one Austrian RC group.

I'm new in the RC world.

I just know that all the member of that group were using a 1/24 WWS.
They are all comming from Nitro RC 1/10, on summer they use a open air 1/10 track.
I have been told that the Micro RS4 is too week for drive in a track, and somebody last year were using an ABC. Some have a Mini-Z (mainly F1) just for fun (but they have left at home!)

On the track the 1/24 WWS look like a 4WD since it is very stable with good traction (thanks to the wide weels base and foan tyres). The center of gravity of WWS look as low as a Mini-Z F1.

My Mini-Z F1 need a lot of work for close the gap. And I guess a standard Mini-Z it is to high for prevent rolling over the carpet.

I'm waiting also a Mini-X ... maybe with 8 cell Mini-X plus FET update, I can be competitive ... who knows ...

MicroRCracer
12-10-2002, 02:08 AM
e_lm_70,


First of all, Ive never raced an F1 mini-z as it should handle way better than a regular mini-z as i would suppose.. Anyways, whats you handling setup looking like with your 6 cell mod..You have the two bateries on the rear and that could be a factor that im not sure of while my car is lowered very low all around with more weight due to 3 extra batteries on the front which I think balances the car well.. I have 4 in the middle and 3 on the front of the chassis.. Maybe, my car is proportioned right for handling? Im not really sure, but my car handles great as well as my well experienced driving in all RC classes.. I think its a combo between my driving and car setup and would like to demonstrate a friendly race with you some day when you come out here in CALI.

e_lm_70
12-10-2002, 03:35 AM
Hi,

I don't think my 6 cell set-up it is too bad ...
In thery I shuold have lower center gravity with my 6 cell set-up then with your 7 cell ...
BTW I guess it is a metter of track type ... on carpet there is so much grip that a F1 can take very fast turn, while a Epoch, will roll over 20 times ! I was thinking to add some wide rear tyres on my Epoch for encrease the weels base.
Probably on a sliding wood track, the Epoch can compate at the same level of a standard Mini-Z.
PS: Already with 6 cell my epoch is not much more light than a Mini-Z ...

e_lm_70

P.S: Very curios to see your Epoch under your controll ...

PP.SS: Just got my Mini-X (s) ... I will check soon if I will be able to compete with WWS ... as well I got my PN S02 for Mini-Z ...

PPP.SSS: How much have you done with your 7cell on eBay :)

MicroRCracer
12-10-2002, 07:17 PM
e_lm_70,


i forgot to mention that im using arear lexan big wing that is doublesided taped.. This could be a big factor for me as well.. Im also using soft grippy tires from the SPEC1..BTW, i kept my 7 cell and never sold it..:)

theone&only....
06-19-2004, 10:31 AM
when are you going to post a vid of this thing man.

NOS man
08-19-2004, 12:34 AM
yea i wanna see a vid!! that thing is off the hook!!