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Hawk
01-09-2006, 05:20 PM
Hi,
Gopher asked me if I have a ground up PitBull ST build up going on. He asked about parts cost with taking it that direction. In response I have opened this thread. I will document my PitBull chassis build of an Mini Inferno ST from nothing to finished running racer.
I plan to list all parts and numbers if applicable, source/supplier, cost from that supplier and pictures of progress. Gopher is interested in the roller build and does not include electronics. I will list it that way but early on I need to set up the servo and motor so those will be mentioned but I will keep too cost lists, one with servo and motor and the other without.

Keep in mind that the details of the build up are based on my tastes, budget and intended purpose. I want a all out racer. That means reliable, consistent, tunable and FAST.
I will make decisions about parts that will reflect this. I will try and include my thoughts on these departures and explain why. I might even list the alternatives that I think a backyard runner might use instead.

I pick some parts based on my experience with 1/8 off road racing (MP777 SP2/OS RZ-B Vspec T) and might not make sense to some.

d :cool:

gopher
01-10-2006, 01:38 AM
thanks hawk :) just like to see projects through completion, similar to thomas p's work going on :)

I think a step by step might be my best move... will take me a while to finish the way my wife keeps taking my hobby money away... bah.. bills...


:)

Trickpatrick
01-10-2006, 04:56 AM
:) Perfect I like the way you think sir.
I too want an all out ST for race only.
Keep up the good work I'll be watching :)

Hawk
01-12-2006, 01:35 AM
I thought I would start with the basic platform, the chassis. This is the PitBull chassis and add on kit (screws, servo mounts) from Panic Toys, thanks BitHed. STiffy will be added later.

Cost: $70.00

Second photo is the servo mounts mounted on the chassis with 3mm hex flush screws. Drilled and counter-sunk holes. Servo cost $59.95 from Tower Hobbies but that won't be included in the roller total.

gopher
01-12-2006, 03:55 PM
I can't see the pics?

edit:


link to HAWK'S GALLERY (http://halfeight.com/gallery/showgallery.php?ppuser=109&cat=500) to see pics

Hawk
01-12-2006, 04:02 PM
Sorry Gopher, I forgot that part. :confused: Clueless I guess.
d

Hawk
01-17-2006, 03:21 AM
Sorry for so long between updates. I have been busy with other pressing matters. Parts have arrived so that I can continue and lots of goodies that are 'neccessary' for a stock type build up arrived too. I am still waiting for the shims (they are in the mail) for the axles/wheel nuts.

So I thought I would do the standard photo with 'Here are my pile of parts'. Many are 3racing but the most important to me, the shocks, are Kyosho. No body does it better.

BitHed
01-17-2006, 11:26 AM
...aww man this is going to be some REAL fun...And you thought watching Myth Busters' was cool!! This is gonna be KEWL!!!

mat3833
01-17-2006, 04:59 PM
i love mythbusters!!! that show kicks. let us kno when you get the parts installed and a video made.

Matt

Hawk
01-17-2006, 06:37 PM
This is the motor selection to experiment with:
motors left to right Tekin Rage 6.8kv, Hyperion YC-22 5000, Hacker 4200kv, Aon 2415-4900, Mamba 8000kv.
ESCs Tekin, Mamba, Quark 22A.

mat3833
01-17-2006, 08:47 PM
man feel like donating any of those to me when you are done?? LOL, i would love to have that selection

Matt

gopher
01-18-2006, 02:06 PM
no doubt!

I'm trying to talk the wife into letting me get a hyp 6kv and mamba esc atm :)

kind of difficult to get her to budge

Hawk
01-23-2006, 05:43 PM
I am sorry to say that my original statement of purpose will have to be changed. I have been working on this project and have kind of hit a wall. If I had lots of time to do it, then no problem. Information though is time critical and if I wait for all the parts to show up when they will, it would no longer be interesting or useful except as a historical or reference article. While those things are useful endeavors, just look at the Ronny's corner thread. It is large and contains tons of very useful information. I have posted a link to the thread or copied a reply from it to others new threads asking the same question. I have read it several times since I originally read it as it was written.

Here is the problem. If I go from a ground up build of an ST with PitBull(tm) chassis, I have to buy hundreds of parts. I can look them up from the manual and exploded diagrams. I have pages of them listed by ST only, used by both, assemblies and Kyosho packages. What I can't do is buy them all in a timely manner. I can get prices for online posted parts bags from Kyosho vendors (PanicToyz, Stellamodel, Dinball, RCboyz et al) for only half of the parts needed.

I had actually planned to tear down the assemblies that I have now to illustrate the parts and build up. That makes less and less sense to me now as I can't buy the individual parts so simulating buy the parts is an exorcise for its own sake. One of the points of documenting this build (though it slows down my progress significantly) was to examine the issues of price and availability of this kind of build instead of buying an ST and upgrading or buying a H8 and upgrading.

It is not really practical at this time to do a build from parts bags and upgrades with little duplication of parts.
I conclude the only practical way to do a PitBull(tm) build or any other chassis (Eclipse CF comes to mind) build with out a donor RTR for all the tiny and obsure pieces.

I will document my build with the PitBull but from the changed point of view that I have a H8 that I am taking apart to build the ST/PitBull(tm) killer race truck.

I don't feel sorry or that I have failed anything because I have put lots of earnest effort into making the original premise work. I have found that it is not feasible and that was one of the reasons to explore this process.

On ward and up ward.

Trickpatrick
01-23-2006, 08:31 PM
Very logical.
I did the same thing more or less waiting for Bit right now. :)

BitHed
01-23-2006, 08:37 PM
...Uno momento Se'nor ;) Almost there Tricky...Picking up the extra bits for you today...

Trickpatrick
01-24-2006, 01:06 AM
Hey Bit it's all good :)

I just got a Mlst and raced it this weekend.
We have a spec class for them and its the best racing I have had for a while great truck. Fun to see 6 or 7 racing together :cool: :cool:

My first Losi product but I have done all the things you need to and its way fun!

The PB will be for Mod class , with a wing it will be my Truggy.

gopher
01-25-2006, 02:31 PM
Ya, I figured that would be the case Hawk, thanks for at least getting as far as you did.

I ended up selling my h8 (still unsure if it was the right thing to do) and picked up an 18t for bashing.

I am positive I will get an h8 st when I can afford a new charger and all that good stuff!

I just don't have the cash to drop to make the ST into the tank I need it the way I bash :)

I know the H8s are great builds, but seem to be more in line for racing and there are no local tracks (at least, not within 1 1/2 hour drive) and no way my wife would allow that w/ a newborn! lol.

Hawk
02-06-2006, 01:34 AM
http://halfeight.com/gallery/showgallery.php?cat=500&ppuser=109

Gallery has new picts. of PitBull(r) and the equipment.
Tekin Mini-Rage, Hyperion 5000Kv YC-22s, Jr Racing XS3-Pro radio, United RC X71 Battery pack. I have a STiffy in there on which electronics are mounted. I used the stock ctr diff mount so I could put at connector to the STiffy amidship and tie it all together. It is like a rock now, no twist, no bend, no vibrations.

I have to cut the beautiful inner body to allow the electronics peek through. I also have to cut the backend out of the truck so the wing will still fit. I hate to do it but I like the truggy look.

I move the steering to the outside and used a custom linkage. I hope to get the ant. wire mounted in a vertical position soon and charge the batt., setup up the esc and see how fast it will go around the corners of the figure eight in front of the house.

This is WinSTon's new best friend. I don't have a name for him yet but I think it will be Nelson, Ha Ha.

anyway, working on the battery hold downs. I am using plastic U shaped pieces that are for routing wiring. I put 2mm flush screws through the bottom for the inside. On the outside, I used the conveinient rail that CAW provided for the strap. Details to follow.

I want to run this so bad but building two trucks and racing 1/8 buggy is time consuming not to mention all the other irons in all the fires. Progress is slow and jerky at times. But, it will be raced, I promise. I can't wait to see the looks on those guys faces at the Antioch track with the new BL aluminum chassis killer truck.

I hope to have pics of that next weekend.

bermbuster
02-06-2006, 02:24 AM
You have one sweet ST (nelson) Good Luck this coming weekend with him....

BitHed
02-06-2006, 02:32 AM
...Whos beena busy boy then? Looking good Hawkalicious...I think its about time you had a link to your gallery in your signature, just after 'The OLD One' ;)

welsh-mudcow
02-06-2006, 02:27 PM
hey hawk can you post up a pic with your new st body on it please

Hawk
02-06-2006, 05:01 PM
hey hawk can you post up a pic with your new st body on it please

I want to, really I do. I just have trouble bringing myself to cut it up because I am keeping the wing. I like the Truggy look but I am afraid to hack it up. I will get it done soon though. :(