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Thanks it came out better than I had expected.
If found a few really good articles regarding front splitters which led me to add the rubber strip to between the splitter and the front bumper.
http://www.miataturbo.net/race-prep-...-height-70456/
http://www.6gc.net/forums/index.php?showtopic=80790
I noticed that if I hit a bump at high speed the splitter could start to vibrate. To prevent that from happening I oredered a set of adjustable aluminum rods from Fully torqued racing. They turned out to be very nicely machined and fit perfectly.
However I forgot that since they are made in the US they use non metric threads which caused a bit of a problem since non metric bolts are very rare over here. As usual a V8 driving friend came to the rescue with a few bolts ftom his parts bin :)
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Took the car to a trackday about a month ago. The track is made of an old military airfield which has been modified into a race track. The track was quite smooth a quick which suited my car very well.
During the first session the track was wet and it was only about 10-15° C outside. I was running on street tires which combined with the 4WD gave me a big advantage over the guys running on race tires and I ended up being quickest round the track that session.
When it was time for the second session the track had dried up and the temperature had gone a few more degrees so this time a highly tuned Opel GT with slicks managed to get past me but I still had a blast.
One area I did screw up was in the filming department... during the first session I had accidentally set my action cam to still picture instead of video so when I pressed record it captured a single frame http://pics.unlogic.se/smilies/facepalm.gif. I corrected this for the second session but the instead forgot to turn on the camera when I drove onto the track so I missed a large part of the first lap.
Anyway here is a few photos and the video from the second session.
http://pics.unlogic.se/3000gt/projek...924_121312.jpg
http://pics.unlogic.se/3000gt/projek...924_121259.jpg
http://www.youtube.com/watch?v=p8KkC8dn-L0
On the way home from the track I stopped at an official weigh station to check the weight of my car for the first time. With 1/3 tank of fuel and some tools and luggage in the car the scale stopped at 1640 kilos (3615 lb).
http://pics.unlogic.se/3000gt/projek...924_183140.jpg
http://pics.unlogic.se/3000gt/projek...924_183150.jpg
I'm having a few days off work so I'm getting some work done on the car.
Removed the splitter yesterday and added an aluminum subframe to it in order to prevent it from vibrating at speeds above 200 km/h. If this doesn't cure the vibrations I'll have to build a new one using some other material.
http://pics.unlogic.se/3000gt/projek...229_001208.jpg
http://pics.unlogic.se/3000gt/projek...229_165433.jpg
Got a Snow performance alcohol injection kit in the mail today.
http://pics.unlogic.se/3000gt/projek...229_191031.jpg
Installed everything on the workbench in order to be able to test all components notably the MOSFET-based driver module my little brother built for me. It's needed to convert the 5v PWM alchy signal from the LCDBC to a powerful enough 12v signal to drive the pump.
http://pics.unlogic.se/3000gt/projek...229_212530.jpg
http://pics.unlogic.se/3000gt/projek...229_220745.jpg
In order to generate a PWM signal while I had everything on the workbench I used a digital oscilloscope.
http://pics.unlogic.se/3000gt/projek...229_221126.jpg
After som testing me and my brother figured out that the Aquatec 5800 seemed to perform best with a 100 hz PWM signal. That gave a good atomization from 15% duty cycle and upwards with the nozzle I'll be using.
https://www.youtube.com/watch?v=VVUgKx6XPkE
The tank I'll be using holds 3 liters which is enough for 6 minutes of 100% duty cycle on the pump. Given how few seconds per lap that are spent at full throttle that should hopefully be more than enough.
cool thread man. how about this rubber piece on top of the splitter? or whoever that piece is. is that to force air to go up?
The rubber peice is there to make a seal between the splitter and the front spoiler. Amateur aerodynamics in action :)
This is the effect I'm trying to replicate:
http://www.formula1-dictionary.net/I...itter_aero.jpg
that picture doesn't make any sense to me.
but i do know that my splitter seems to have a little ramp on the top surface of the splitter assumeably to force air into or towards the radiator. which sounds nice, and i have had temperature issues in the past,.. and it seems like that little strip will block that.
so is that thing there so i can have those green arrows making more low pressure? deaurghhh.
Simplified yes :)Quote:
Originally Posted by shmoo
why do i want more low pressure, i'm sure this has been explained, and i've probably read the explanation half a dozen times. it obviously stuck..
Low pressure zone under the car gives you more downforce and reduces drag in simplified terms.
https://hanchagroup.wordpress.com/20...esign-is-best/