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Unfortunately it's going to be hard , where I live we don't have tracks here. But, maybe this winter I be able to track it in (Bahrain track) . I live in Middle East by the way.
Driving under normal conditions what I can see the water temp increased by ( 5 c ) my car is turbo charged with stock hood. Definitely need after market hood with this setup.
last time I drove the car was a year ago maybe more than that. Any way built this diffuser for top speed purpose, hopefully it will yield the result I'm after and make the car more stable in high speed.
On my 295 km run the back of the car felt realy light I had to let go, scary!! ( stock aero)
After I had finished my diffuser had 2 crack manifold and a bad clutch
Now looking to but the car back to gather and head back to see result of the diffuser. Good or bad 😁
Just remember when you're setting this up, you must vent the air coming in through the bumper. Your temps are likely raising because you've effectively trapped more air than previously. Venting the radiator and brake duct air can get tricky with custom work like this. I think the quickest and easiest venting system would be a vented hood (similar to that of a NSX).
Another place you'll likely want to vent is the diff. On the track you'll likely see dangerous diff temps and it will likely start to vent fluid out. Under normal circumstances, it will generate quite a bit of heat on track and now that it is enclosed you can expect that to increase as well.
I was considering doing something similar but planned to use multiple small panels to ease maintenance and installation, as well as strengthen the over design. Also, I figured the small segments would allow for simpler development around problems when I found them.
Unfortunately the Z doesn't readily accept a functional rear diffuser (with the stock exhaust system setup). It just poses too many obstructions. So if you want to optimize it you likely want to play around in that area.
Another place to consider for venting, aside from underhood air is the fender's airflow. But that's a whole other can of worms.
I had to revive this thread. Actually learned some good stuff in this thread with some counter research in between.
I'm curious about the to flat of a underbody part. With people saying it could produce life. Someone said it needed a bump in it or something like that. If anyone knows. I understand the diffuser science of it and the front and rear rake will have a better effect.
I wanted to make a front splitter/under body for the front and some type of side skirt splitter without anything extreme. Mainly to keep engine clean and some for aesthetic reasons.
The front canards you see people add to front bumpers. The L shaped sloped things on the sides of the front bumper. Are these functional or aesthetic too?
04-11-2015, 04:19 PM
