Max G forces iphone

[gplracerx]

I've never done it, but I from what I hear, it's difficult to learn to work with aero. It's counterintuitive that the car will stick better when it's going faster up until it doesn't. And I'm not at all sure that you can work up to it bit by bit. There may very well be a no-man's land between where mechanical grip runs out and aero grip kicks in.

A splitter is very sensitive to ground clearance. If it's not just short of dragging, it's probably not doing much. As a result, a high downforce car needs extremely stiff springs to keep the ground clearance constant. In round numbers, about twice the spring rate you'd use in a car without aero. Of course that depends on how much downforce you actually have compared to the weight of the car. Also, the spring rate of the tires becomes more important.

[EvolutionX]

I am more about experimenting. That's the part that interests me. Go out for a session, come back in and makes some changes then go back out and see if they work. Since I am doing it myself there is a sense of accomplishment. It's a road car (Evo X) with some aero so it's not going to be in the same league as a F1 car, but a little here and a little there with me doing it based on reading about fluid dynamics, aero and suspension is more of a "hobby" type thing. I can take credit for what I did rather than having somebody else set it up. Plus I learn in the process. The car doesn't have a flat bottom so I am limited somewhat but as we all know, racing is a game of hundredths of a second. I plan on building my own rear diffusor as well. The Evo has one but I am pretty sure it's just for looks.

My splitter is pretty well built. Attaches to the cars frame in multiple locations. I am building a dam out of rolled aluminum and when I get to the track I plan on lowering it to an inch or so off the ground. Depending on track, I will lower it enough so it if it does scrape it only does it on the rough parts of the track. The splitter material is Alumilite so I can make 2 for about 110$. So no big deal when they get destroyed.

Playing around with the Aero and the coilovers gives me something to do between runs. I just need to get my laps so I can do close to the same time lap after lap before I do too much with adjusting things because at this point I wouldn't know if the time reduction is me getting better or the changes I made.

Although if somebody could get Adrian Newey to come by the track someday I would be willing to let me show me a thing or two. LOL

[gplracerx]

You can have a splitter or an air dam, not both. A splitter is a ground effects device that also restricts the amount of air flowing under the car if it's close enough to the ground to be operating effectively. A dam only restricts the amount of air flowing under the car. There's no point in having an air dam attached to a splitter. As far as ground clearance, both a splitter and an air dam need to be almost touching the ground at speed.

When you're learning how to drive, you should keep adjustments to a minimum. It's only when you can turn consistent laps that you can tell if an adjustment actually does anything. And even then, the proper adjustment might be to your driving line, not the car.

[EvolutionX]

From everything I read the dam goes above the splitter.. Scroll down to "Front splitter/air dam" on my car there will be a gap between the bumper and splitter. That gap needs covered with the air dam.

http://www.rapid-racer.com/aerodynamic-upgrades.php

[gplracerx]

OK. That sounds reasonable. The splitter would still work if it's close enough to the ground, but blocking air flow under the car above the splitter should increase downforce and decrease drag.

[EvolutionX]

Splitter is about 2 inches off the ground at this point. But next track day it will be as close to they round as I can get it without it dragging the whole time. The dam will be easy to build. Just rolled aluminum from Home Depot that roofers use. It's not the perfect setup since I have vents for oil cooler and inter cooler/radiator for the air to escape to but nothing I can do about that. I'm just trying to get as much downforce as I can with what I have. A little more speed through each corner can make a big difference at the finish line. Plus I have to balance out for the rear wing. If I set that too aggressive with no front aero then im under steering. It's all a balanceing act.

Plus like i said, it's a nice feeling to do something on your own, especially as advances as aero is and feel a result.

But as of now getting my lines down will help the most. I review the video after each session because I see things I didn't see in the heat of the moment on the track. Then I concentrate more on those "mistakes" in the next session.