Re: FWD-GT TOP SPEED CAR
Posted: Fri Nov 01, 2013 9:39 pm
Is that body going to give enough down force to keep the car on the track at speed?
Yep, 200oz, a little on the slow side. Should be plenty strong enough to keep it in a straight line. Less joint places for slop to occur.justinspeed79 wrote:Looking good. Direct linkage steering?
It should, we'll see though. Unlike an AWD or RWD this car won't want to lift the nose as bad so that's a plus.Phin wrote:Is that body going to give enough down force to keep the car on the track at speed?
Foams don't expand as bad as rubber tires. I've seen people belt touring car tires with Kevlar string and glue. But all that is just a ton of rotating mass compared to these foams. If these explode I should be able to pick up quite a bit of replacements from BSR racing. That's me hoping of course. Eliminate the middlemen and shipping and buy straight from him and it should lower the cost a little.LoboNYC wrote:
Are you going to stay with foam tires?
Well, one way to find out. Lol. I can't see the numbers on it, but unlike the theory on motors, ESCs definitely can't take more than they're rated for, and that looks like a 1/10 ESC. I do know the Hobbywing 150A Xerun can take 6S no problem, and they're only $100.I knew the can was technically a 3s max. Guy I got the advice from when purchasing the combo ran his on 4s all the time with no issues at all. The 6s was a plan if the 4s doesn't achieve the speed I'd like. I honestly don't know much about these motors but I don't plan on bashing like some would in a big heavy vehicle with big tires. My temps should stay relatively low making 10 second runs every 10 min or so. Ill be surprised if the car goes past the 4lb range. With the higher gearing on 6s the load will also be less. We'll see I guess but you may be correct.
This is a new term to me. Can you explain what you mean "atv", thanksgomachv wrote: Steering atv is gonna be pretty darn narrow
You'll have a pm coming your way in a few min.Sixtysixdeuce wrote: Where did you get the carbon fiber sheet? I could use some of that!
Not yet. We got the muffler/pipe TIG welded a few weeks back, but either been busy with other stuff or had crappy weather when free time existed. Not a lot of places to run these things out here, especially not safe places. This car has come very near being squished by 1:1 stuff many times in the past. I do know how that engine runs, though, as it's lived in both a GT and an OFNA 1/8 buggy before this. Freshly rebuilt, but I'm still a bit nervous about modding myself, so it's stock.Also id love to see that car run. Do you have any videos of it in action?
That's a pretty good idea with the lexan. I was already contemplating buying another sheet of Carbon fiber and tracing the body onto it and cutting a new main chassis with only cutouts for the tires. Your idea with the lexan skirts would achieve the same thing. My main goal is to get the car driving before I go changing too many things or spending any more money. For all I know I might have just made the worlds best car at doing 60mph burnouts. I went over my mothers to pick up my heat shrink tubing and rapid remover. I'll probably have the car going soon. I want to test it out for a little bit before I do any full power speed runs. Don't want anything vibrating loose on a first run and exploding my car. The body does have a slight wedge shape to it so I believe it should stick to the ground pretty well.jwscab wrote:when you get the car all ready to go, do your self a favor and make front, side and rear lexan skirts that double side tape to the the chassis, and velcro all around the outside of the body that contour very closely to the wheels, effectively making a smooth surface under the car. This will keep a bunch of air from 'scooping' the body up at speed and making the car light. If you can work it so you have an up-tilt on the rear portion, it will help stick it to the track.
I did not make the rear tower. Just something I saw at the hobby shop that I knew would be a good size for the rear. Just drilled the GT rear bulkhead and bolted it on. The front I did cut but its just a simple rectangle shape.Sixtysixdeuce wrote: Did you carve out the shock towers too? If so, wow, nice job!
Ive been scoping out parking lots as I drive around but none yet look to be what I'd like. There is a large 5 lane bypass highway near me that doesn't get much traffic as a typical interstate. At the right time of day I can drive on it and be the only one. This is where I will most likely do my speed runs.SFC K wrote:
So do you have a nice flat place to run it with no traffic?
ATV= adjustable travel volume. Basically the same as ATL(adjustable travel limiter), and EPA(end point adjustment).romulus22 wrote:This is a new term to me. Can you explain what you mean "atv", thanksgomachv wrote: Steering atv is gonna be pretty darn narrow