High speed G-maxx for ISC event, 100mph or bust

[JThiessen]

Try cheapbatterypacks.com (out of Oregon) if Castle doesnt have what you are looking for. I've used thier connectors, and they are high quality.

[Rivermaxx]

Ok guys, my truck is pretty much finished and I am still waiting on the custom made tires. The guy making them is taking way too long and keeps giving me excuses. Anyway I decided to go do some testing with some of those low profile panther tires that there was a lot of dispute about back in the day. I figured the low profile and the fact they are belted would help with high speed separation. BOY WAS I WRONG!. I made a couple of <1/2 throttle 50mph+ passes on my short street with no problems except the street definatly wasnt long enough. So Me and my buddy went out with the radar gun to a long street with little traffic and tried to better the passes a little more. Well it started out good and straight and about 1/2 way in the pass I rolled past the 1/2 throttle mark a little and all of sudden car jumped a little and came to a side ways stop after 15 feet. When I finally get down there 2 of the tires came uglued from the wheels from the centrifical force. The radar gun said 59 mph before epic failure of the tires. The nice thing about it is it stayed rubber side down and if it would of rolled without a body I would of been pissed. I really need those custom tires now so I can test properly.He said they are done and have been shiped but still havent seen a delivery confirmation #.

[vader2728]

We are all anxiously awaiting the arrival of those tires... Remember the video camera next time... Please...

[Rivermaxx]

Got my tires and wheels today they look really good and are really light. Time for some real testing hopfully I can get past 1/2 throttle now. I also noticed on my previouse 59 mph run the pinion gear was loose and spinning on the shaft. I am running 2 6s(22Volts) 3300 mah 30c batterys in parallel for a total of 6600mah and 198 amps continues and 264 amps peak. I am running all 6.5mm bullets capable of handling 200amps. Heres pics of the tires:




Thinking about lengthening the chassis a little more and use a UE mono thunder long steel shaft. But Its alot of work for only ~30 mm more. I wil see how this setup does.

[brushlessboy16]

Sick!
Very nice job

we need pics!

[Semi Pro]

looking great


i would also cut out the rear of the body, it will greatly reduce drag

[suicideneil]

Man, that looks bizzare- like 1/8 buggy shoes on a mini erevo... *hmm, interesting idea...*

Should be alot more controllable now, but I wonder how many runs those tires will last?

[Rivermaxx]

Yea, they are definatly different looking and I could of run buggy foams or still small truggy foams but I would lose gear ratio and the big monster truck wheel look. BTW They are 1/8 scale CEN monster truck wheels cut on a lathe. They are the purple foams and supposed to be the hardest compound available. So I imagine they should last longer than most. Theres not much on the back of the body at least not a real tailgate or anything. I do think the slipstream will be ideal though, thanks Neal for the recomendation.

[JERRY2KONE]

It really does look nice river. I hope the tires hold up for you. I still think a more solid tire might be the ticket for the speeds you want to go. You may have to run your own rubber on a lathe to get a trustworthy set of tires forgetting much over 100mph. So lets see it with the body on there. I sure hope your setup gives you some aerodynamics that will keep the wheels on the road. Once you get up around 80mph it will want to lift up if you do not have some kind of down-force included. Good luck with your testing.

[Rivermaxx]

The foam these tires are made out of are the same purple type Nic Case uses in his 160mph car. I am sure John at bsr knows what he is doing. He is the best tire mounter around and multiple guys with speed cars use him. A solid rubber tire would be too heavy and probably cause other problems. We will see how it tracks at speed. I noticed alot of the blow overs were from either a wheely or a tire balloning(growing) causing a lift off. I have the punch control set at 90% to help with the wheelies and obviously no tire balloning. The test body is going to be different from the run body as I dont want to have to buy another if I thrash it. Once I know everything is good I will start using the actual run body which I will be painting next week.

Heres some pic with a messed up body that I bought off ebay that the holes were not drilled in the right spots. I guess it will work for this project as I am going to use clear packing tape to hold it on for now. The slipstream body is longer and will fit alot better.

[Kcaz25]

Awesome! Yes. I would install the monoblock. Very exciting!

[Rivermaxx]

Cant, I am running a extended rear titanium skid. It is a little longer than with the mono also. I wanted it as light as posible also. Mono would of added some unwanted weight. Notice the narrow old school rpm arms and pillow blocks. It has aluminum pillow balls all the way around. Ti cvds, ti centers,ti turnbuckles,ti skids, UE 1/8 scale 6 spider diffs. I put all new avid ceramic bearings in the tranny and new bearing in the pillow blocks.It weighs 9.4 pounds with 2 6s 3300 batts without a body.

[_paralyzed_]

anxious for more testing now that you've got the right shoes. Looking awesome..........

[Kcaz25]

OH now I see what you meant, You are thinking about moding(lengthing) the chassis and installing the mono block shaft only. Gotcha.

[PBO]

Those BSR's are quite amazing aren't they

If you ran without punch control & a front splitter I'm sure the effect would be the same just a little kinder to the MMM

Are you revealing any pics of the aero setup? I'm assuming vertical stabilisers?