High speed G-maxx for ISC event, 100mph or bust - Page 17 - RC-Monster Forums

squeeforever · 02.09.2010, 04:39 AM

I read the whole thread for the most part, and clearly got the idea that traction is your biggest problem. I didn't see it mentioned, so I'm just gonna throw it out there. Did you ever try or consider traction compound? Its supposed to work extremely well on the foam tires, but I haven't tried it, so I can't say for sure.

Kcaz25 · 02.09.2010, 07:31 AM

Quote:

Originally Posted by moe7404

they didnt travel back in time cause they didnt have the Einstein in the truck. tell me after all those mods . is it still a t-maxx? looks like there is only 10% parts stock left.

It's very much a Maxx.

Rivermaxx · 02.09.2010, 09:29 AM

Quote:

Originally Posted by moe7404

they didnt travel back in time cause they didnt have the Einstein in the truck. tell me after all those mods . is it still a t-maxx? looks like there is only 10% parts stock left.

I didn't make the rules. But i did follow them. Lots of e-maxx parts in that truck even old school rpm short arms.

moe7404 · **way cool -** 02.09.2010, 07:43 PM

with out a dought it is a VERY cool truck.. something came to me ( ill bet you all ready thought of it ) is stopping it safely going to be just as hard as going fast?

Rivermaxx · 02.09.2010, 07:50 PM

Definatly dont want the wheels to lock up. I had the setting for the brakes at about 30%. Nic Case 156 mph pass took up allmost the whole 1/2 mile and I believe he just let it cost too the end with maybe a little drag.

Rivermaxx · 02.09.2010, 07:53 PM

Quote:

Originally Posted by squeeforever

I read the whole thread for the most part, and clearly got the idea that traction is your biggest problem. I didn't see it mentioned, so I'm just gonna throw it out there. Did you ever try or consider traction compound? Its supposed to work extremely well on the foam tires, but I haven't tried it, so I can't say for sure.

I mention traction being my biggest issue multiple times. I am not sure about traction compounds but it probably would of helped.

moe7404 · 02.10.2010, 12:52 AM

did i miss you saying how much nitro it will be running on? i had an idea to set up my t-maxx to do an endurance run. what think?

PBO · 02.10.2010, 01:03 AM

Quote:

Originally Posted by moe7404

did i miss you saying how much nitro it will be running on? i had an idea to set up my t-maxx to do an endurance run. what think?

What are you talking about?

_paralyzed_ · 02.10.2010, 01:04 AM

Quote:

Originally Posted by moe7404

did i miss you saying how much nitro it will be running on? i had an idea to set up my t-maxx to do an endurance run. what think?

none. It's electric. I don't understand you. It ran on 22.2 volts and a brushless motor. Have you read the thread?

PBO · 02.10.2010, 01:05 AM

Quote:

Originally Posted by Rivermaxx

I mention traction being my biggest issue multiple times. I am not sure about traction compounds but it probably would of helped.

It would have but it also wears the foam compound very quickly

Kcaz25 · 01:15 AM

Quote:

Originally Posted by moe7404

With out a dought it is a VERY cool MAXX... something came to me (Ill bet you already thought of it ). Is stopping it safely going to be just as hard as going fast?

I fixed your post.

-Zack

EDIT: I'm not fixing these:

Quote:

Originally Posted by moe7404

they didnt travel back in time cause they didnt have the Einstein in the truck. tell me after all those mods . is it still a t-maxx? looks like there is only 10% parts stock left.

You have not a clue. It's okay hang around here for 6 months or so, it will come. Welcome to RCM!

Quote:

Originally Posted by moe7404

did i miss you saying how much nitro it will be running on? i had an idea to set up my t-maxx to do an endurance run. what think?

It's an E-Maxx. Harold already told you. Its shocking how nitro is the new slow isn't it?

OZ-RUSTLER · 02.10.2010, 01:09 AM

Quote:

Originally Posted by moe7404

did i miss you saying how much nitro it will be running on? i had an idea to set up my t-maxx to do an endurance run. what think?

Duuuuude. Pass that doobie over my way.

Rivermaxx · 03:24 AM

Geez it must be that cush bud hehe. I sure hope he meant the nitro left on the track from the previouse drag race event LOL! If so I believe there was a thin layer still left on the track, so its running on not much nitro at all lol. My competator was running on 30% nitro and his best pass was like 76mph with a 2 speed buggy. quite a few on road nitro cars broke 100mph + that day.

feistyacorn · 02.10.2010, 11:29 AM

We use traction compound on our 1/10 trucks foam tires for carpet racing.

This is what I am using right now. It is some nice stuff, but they went crazy on pricing recently.
http://www.amainhobbies.com/product_...-Tire-Traction

I have used this in the past. As a FYI it has a strong ordor, most tracks ban it.
http://www.amainhobbies.com/product_...ction-Compound

A friend is using this one and he likes it so far.
http://www.amainhobbies.com/product_...on-Formula-4oz

02.15.2010, 12:30 PM

I think you need to re-think your approach.

It's all very well and good having skinny wheels and tires but you are severely limiting your contact patch and overall grip for slightly less frontal area on something that's as aerodynamic as a widened brick anyway. Your truck is also much too light. You have enough power to break 100 easily, you don't need the truck to be ultra light (11lb WITH two 6s packs is ultra light) for a run. Thrust ssc 2 weighed 10.3 tons... Didn't stop it breaking the sound barrier. JZEmaxx's truck was fast not because it was super light or amazingly aerodynamic, but because it was a converted 20lb MMT with a huge motor and lipos strapped to it. Even then he was still having trouble with airflow and the front lifting.

At the end of the day, weight affects acceleration, handling and braking, top speed should remain relatively unchanged. What weight will affect is how much mechanical grip you have, and how easy it is to keep on the ground. Shove 5lbs of lead on the nose and tail of it. I guarantee it will be faster and easier to control. Better yet, stick weights on the inside of the wheels and rebalance them. Increased gyroscopic effect should help it track straight. You can scale a car down but you cannot scale down the laws of physics, the forces acting on these vehicles are very much the same as those acting on a real car at 80mph, it's just that the real car will weigh 1500kg. The heavier a car is, the more difficulty the forces acting upon it will have upsetting it.

Provided you have the power to overcome the inertia provided by the weight (which you do) you will have a more easily controlled and less prone to wheelslip vehicle.

Aerodynamics are a black art in RC, very few have access to wind tunnels and whilst there is nothing to stop you taping an assembly to the back of the truck that you reckon might aid it at high speed, you have no real idea of whether you are hindering it or helping it. I ran a high speed full bodied Slash for a while, anyone an stick a big motor in a Slash with a recognisable Slash body shell on it, but have you ever tried getting the damn thing to stay on the floor? 45mph is around the limit for that Slash shell before it's aero wheelying, I finished up at 75mph with a modified hardcore Proline shell and a lexan undertray. 4s only I don't think it was a bad effort.