^ vortex generators cost $20. You can't afford that...?

Have a go... http://www.sigmaautomotive.com/perfo...kz/vortekz.php

 

I'm not going to just slap on 3m tape vortex generators lol, Im talking about doing this right, color matching them and all.

 

^ cool ... color matching would make them practically invisible...did you notice they discuss painting them on that sight and give suggestions? I'll add here where you can to get small batch factory color match paint, complete with metal flake (if you have that) and clear coat so you can do it right. Let us know how the VGs work... You can be (almost - except for this 4-rotor) the first RX-8 out there with vortex generators.

ps. also this shows a true 'functional' wing...not some wussie trunk mounted trim piece ...talk about leverage lol! ...that thing could prop raise the front wheels off the ground if set at a high enough lift angle.

http://www.automotivetouchup.com/

 

I have seen more and more of those curved wings popping up, and I like them. I am considering one of the mazda speed wing I originally wanted, but you dont need that kind of mount on it.

 

So this thread just died off?

 

I quess so.

Maybe not...because i'm here

 

I should have my car out of the garage withi the next couple of days. I will snap a good photo of my Newest splitter design.

I will have my first track day with the splitter this weekend and will post some before and after videos (with data and analysis).

 

How were the results from last weekends test of the splitter?

 

It felt great and my lap times improved but I was also on fresher tires and had more power. I will upload a photo of the splitter latter.

 

A few pics of the new splitter. I like the design, but we need to work on a few things to make it easier to remove and reinstall so the car can still be a street car.

My latest videos can be viewed by clicking the link in my signature.

 

I'm a big believer in aero aids. Last year, I installed an APR dual-element rear wing (the kind they no longer sell) and it immediately changed the handling of my autocrosser from neutral to understeer at solo (under 60 mph) speeds. I attribute this to increased rear grip from the rear downforce, but without any equivalent increase in front grip (no splitter), the result is understeer.

I did tune the understeer out with spring rate changes, and, when I then subsequently removed the rear wing - guess what - oversteer!

The new, 3D wings are better at track speeds, however. Good downforce with less drag than a dual-element, but the 3D wings won't produce as much downforce at lower speeds (at least, this is what I have been told from multiple sources).

I was looking forward to experimenting with a splitter this year but the SCCA changed the rules, so my nifty carbon fiber dual element wing sits in my garage. It was fun while it lasted.

 

APR has different settings if you look some of them dont start working till 30mph while others dont until 50 or even 60. You just have to choose. The sooner the downforce starts the more pressure you get at high speeds so you cut your top speed down. Its give and take.

Highway you should play with canards front and back, they can take away vortexs at the wheels, and also direct air from the side of the vehicle so you get to maintain that downforce when you loose the clean air in the front of the vehicle in a turn.

 

I am not worried about "Clean Air" The car feels very stable in the high speed turns. If you watch my latest video (dry lap not the wet one) I apex turn 1 at about 88 MPH and turn 8 at 103MPH. Both of those speed were kind of on the low end for the day. I apexed turn 1 as high as 92 and turn 8 106MPH. Even at those speed the car felt very planted. I could have easily taken them faster too but I never got a chance to truly warm up my tires and I wanted to play it safe.

In regards to the Canards, I dont think I need anything more then I have. I installed the splitter end cap/flaps at the wheel wells to make sure I get as much downforce even in the turns, plus on the straights it is directing the air over the front tires.

 

Looks good!

Great work.

More up close pics?

 

the re-amemiya front lip for our cars "appears" functional compared to other lips.

whats is the opinion from you wiser aero masters out there on this lip?

worth the money? or waste of money?

 

How much?

It looks very functional. It has the splitter and the built in Canards to direct air flow up and over the wheel wheels which reduce drag and lift plus create downforce.

The weak point is the fact that it attaches to a stock bumper which if it could produce significant downforce would significantly flex and tear off or tear the bumper off depending on how it is attached.

So IMHO I think it probably reduces some lift by reducing the amount of air that goes under the car and produces 35-50LBS of downforce at 90-125MPH. My opinion is very unscientific and heavily based on the idea that you can only achieve marginal downforce without adding additional bracing and support to the bumper.

Will you notice the difference on the track? On highspeed sweepers I believe you will have a more stable front end. However when you add downforce to the front you can upset the rear, but I dont think the margial increase in downforce will be enough to cause any problems.

 

Bump. Any new DIY splitter designs?

 

Nothing new when it comes to function, but after having my splitter dig into the sand at leguna seca and tear my bumper in half, I redesigned my splitter and undertray. Im using alumalite for everything including the uprights which support the rear of the splitter. The splitter and undertray are both 1 piece and I have 4 splitter struts. The splitter is not attached to the bumper and pulling a total of 6 disconnect pins will remove the splitter/undertray. The splitter is strong, I weigh 200 lbs and the splitter supports my entire weight with the only flex being the alumlite between the struts. Properly distributed, im guessing it would have no problem holding 500 lbs.

 

pics or it didnt happen

 

Interesting thread, keep us updated on new research and results

 

Trunk mounted wings are ok for low speeds but, I have seen apr wings rip off of two cars at th track, right through the mounting holes on 150mph straightaways.
Kognition racing makes a chasis mount for the 8, at least Kyle Mohan has one on the mazdatrix drift 8. That is a serious wing.

 

It would help if you called it by it's proper name; bumper cover or front fascia, rather than calling it a bumper, which it isn't. Big difference between the two actually.

 

Stop being so **** about stupid crap. It is not any different then someone saying Kleenex instead of tissue. Chalk it up to car subculture vernacular if it makes you feel better.

 

just ignore him, his playmate is no longer available so now he's just bored.

 

Definitely believable. It is not uncommon for RX-7 track junkies to have a direct mount to the chassis for their wings. Of course that would require one to undo their wings whenever access to the trunk is needed.