Post your DIY aero pics
#261
I have a pic under heavy braking going down a hill. I will see how high it is. My splitter sticks out from the bumper about 3". I don't know what spring rates I have. The coil overs are a cheap set of street b.c coil overs (gold) with whatever spring rates they come with. I payed $600 for them 2nd hand.
#263
Car one is the far superior design. The easiest way to think of aero for me is to imagine the particular part your building being placed in running water ie like a creek. Now your job is to channel that water so it has the least resistance. I know that sounds silly but others have to have their brain wired like mine lol
#267
Car one with the apocalypseTM front end has a more effect means of evacuating the air above the splitter, has less drag, and creates less turbulent air for heat exchangers and brake ducting. Both designs have been tested here in Texas up to 150ish mph. Design one on the same car with no other changes has to run a lot smaller splitter to keep the balance the same. The goal is really to create negative lift on the front end which translates to more downforce, the stock miata bumper is a great design on the top 4"
Here is version 1 that we built in the winter of 2010 for JohnZ's car (spoolin2bars)
http://www.speedhunters.com/2011/03/...w_track_miata/
JohnR, ZXTEX car one, took it forward and used a better material and covered the front tires better with out canards. I have several improvments in my head but need a fresh junk bumper and some free time. Spoolin also needs more rear aero before we improve on the front design. Look how small the splitters are on both the straight down designs, they are more effective period.
Last edited by jacob300zx; 12-12-2012 at 11:03 AM.
#268
Car one with the apocalypseTM front end has a more effect means of evacuating the air above the splitter, has less drag, and creates less turbulent air for heat exchangers and brake ducting. Both designs have been tested here in Texas up to 150ish mph. Design one on the same car with no other changes has to run a lot smaller splitter to keep the balance the same. The goal is really to create negative lift on the front end which translates to more downforce, the stock miata bumper is a great design on the top 4"
Here is version 1 that we built in the winter of 2010 for JohnZ's car (spoolin2bars)
CAR SPOTLIGHT>> HOMEBREW TRACK MIATA - Speedhunters
JohnR, ZXTEX car one, took it forward and used a better material and covered the front tires better with out canards. I have several improvments in my head but need a fresh junk bumper and some free time. Spoolin also needs more rear aero before we improve on the front design. Look how small the splitters are on both the straight down designs, they are more effective period.
Here is version 1 that we built in the winter of 2010 for JohnZ's car (spoolin2bars)
CAR SPOTLIGHT>> HOMEBREW TRACK MIATA - Speedhunters
JohnR, ZXTEX car one, took it forward and used a better material and covered the front tires better with out canards. I have several improvments in my head but need a fresh junk bumper and some free time. Spoolin also needs more rear aero before we improve on the front design. Look how small the splitters are on both the straight down designs, they are more effective period.
#269
Look at spoolin2bars birch splitter we made in the post below, it was like a 6" splitter. No other changes but added the apocalypse front end and the splitter had to be trimmed down to 2" to keep the balance the same. I believe ZXTEX had the same experience as us on splitter length once you go to the flat front end.
https://www.miataturbo.net/race-prep...r-52759/page4/
I also believe spoolin picked up some mph on several straight's here on local tracks.
https://www.miataturbo.net/race-prep...r-52759/page4/
I also believe spoolin picked up some mph on several straight's here on local tracks.
#270
Look at spoolin2bars birch splitter we made in the post below, it was like a 6" splitter. No other changes but added the apocalypse front end and the splitter had to be trimmed down to 2" to keep the balance the same. I believe ZXTEX had the same experience as us on splitter length once you go to the flat front end.
https://www.miataturbo.net/race-prep...r-52759/page4/
I also believe spoolin picked up some mph on several straight's here on local tracks.
https://www.miataturbo.net/race-prep...r-52759/page4/
I also believe spoolin picked up some mph on several straight's here on local tracks.
#273
Depends what your goals are. Personally I think air dams and/or splitters should be used to correct aerodynamic balance after adjusting or changing a rear wing (assuming a diffuser that works is already on the vehicle). The correcting of aerodynamic balance will also add downforce. Also, a decrease in drag can usually be gained by the addition of either a splitter or air dam.
I have simulated both of these types of setups in cfd. If interested, check it out.
https://dl.dropbox.com/u/105015076/a...ata_122612.pdf
I have simulated both of these types of setups in cfd. If interested, check it out.
https://dl.dropbox.com/u/105015076/a...ata_122612.pdf
#274
Depends what your goals are. Personally I think air dams and/or splitters should be used to correct aerodynamic balance after adjusting or changing a rear wing (assuming a diffuser that works is already on the vehicle). The correcting of aerodynamic balance will also add downforce. Also, a decrease in drag can usually be gained by the addition of either a splitter or air dam.
I have simulated both of these types of setups in cfd. If interested, check it out.
https://dl.dropbox.com/u/105015076/a...ata_122612.pdf
I have simulated both of these types of setups in cfd. If interested, check it out.
https://dl.dropbox.com/u/105015076/a...ata_122612.pdf
#280
What materials are people using for flat underbody's?
Im about to put a front end on an NA the same as the blue car with the big Hoosier sticker, and I have a diffuser to put on the back, I was considering just riveting aluminium angle to the pinch welds and screwing an alumalite panel to it with perhaps a few alluminium angle's running across it for stiffness, and of course the whole exhaust will need to be wrapped.
Is there a foolproof option that wont melt? 1/4 birch seems heavy for an entire undertray.
Dann
Im about to put a front end on an NA the same as the blue car with the big Hoosier sticker, and I have a diffuser to put on the back, I was considering just riveting aluminium angle to the pinch welds and screwing an alumalite panel to it with perhaps a few alluminium angle's running across it for stiffness, and of course the whole exhaust will need to be wrapped.
Is there a foolproof option that wont melt? 1/4 birch seems heavy for an entire undertray.
Dann