I didn't mean for this to be a hostile exchange. And it's pretty easy to see who you are, after all you made a video of a race day. A lot easier for me to see who you are than you to see who I am.
You described what a diffuser does, I already know that. You've asserted that the ones you've seen (at the track) don't work.
My questions, that you haven't answered, are, why do they not work, and what would it take to make them work?
I just love it though, and it really feeds my drive to succeed at something, when someone says something won't work or I don't know what I'm talking about. So keep it up, it has positive effects.
I've been building cars from scratch for 25 years. I was wrenching on Z's before you had a drivers license. I don't know why these aftermarket or scratch pans and diffusers don't work and I was asking someone I thought might know. But even race car drivers don't know everything I guess. That's disappointing, I thought they were omnipotent.
That's okay though, I'll figure it out one way or another.
I invested in Solidworks (with CFD) a long time ago. Pretty sure I can dig up a s30 solids file. I'll spend some time with the Z aero and get back with you guys.
If you are proficient in solid works that means you are more than likely a mechanical engineer. If you have been wrenching on Z's before I had a license that would make you around 55 to 60 years old. Given that you have all this experience you don't need my omnipotent race car drivers input anyway. I guess its just the immature way you post, your verbiage skills, the fact you don't read very well or it could be the fact you don't really understand what I'm trying to say to you. I never said that the diffusers (AT THE TRACK) that I see don't work. I am discussing our cars. 240Z's. Thats why I'm posting on HYBRIDZ. I have never seen a 240Z with a properly designed and functional underwing and diffuser. EVER. I have seen and driven plenty of modern race cars (AT THE TRACK) with perfectly balanced undertrays and diffusers that work just fine. Question for you.....Do you think you can take a modern race car undertray with diffuser and remove it from that car and attach it to the underside of a Z and it function properly. With all your experience wrenching on Z's I would have guessed you said yes given your previous posts. This of course is incorrect. It doesn't work that way. You say I've "asserted" that the ones I've seen at the track don't work. That is not what I said and Mike Kelly tried to point that out to you as well but you still insist that is what I said. For the record...........I said, ( I see loads of people who attach panels to the underside of a car, I see people buying diffusers all the time and not actually realizing that they are not doing anything but adding weight and drag to the car). Thats copied and pasted from my post. I am referring to the idiots who try and make their cars look like a race car but have in actuality caused more weight and drag thus it actually works against them. The design of a diffuser actually begins with the splitter and nose of the car, but you probably already knew that. I remember now, you dont ever want to race but might want to go fast someday and you wanted a functional underbelly and diffuser for your Z to be able to fully take advantage of the aerodynamics. Given that I'm 50 years old and omnipotent I'd say you better hurry up and get busy goin' fast.
Edited by cobramatt, 12 June 2013 - 05:20 AM.