functional diffuser project
Le Mans Master
Joined: Jul 2013
Posts: 5,699
Likes: 147
He says his is functional.
A Diffuser is not my cup of tea either but I'm curious to see
how the finished production piece looks.
Last edited by StrangelovesM6Vert; Jul 1, 2015 at 04:46 PM.
Thread Starter
Racer
Joined: Sep 2011
Posts: 312
Likes: 0
the larger the diffuser, the larger the air expansion area is. the greater the expansion area the more down force it creates using the venturi effect. f1 racers are limited to the size of diffuser they can use so they are limited for down force. I have no way to get specific numbers to test it. vs other methods but from my understanding of the principals of aerodynamics and fluid dynamics. I think this should be functional. the formed diffusers you see are mostly for looks because they don't close out the underside of the rear. I made this one to stick out far enough to smooth out the air turbulence behind the bumper. it still doesn't stick out further than the rear most portion of the car. its pretty even.
Drifting
Joined: Mar 2012
Posts: 1,517
Likes: 147
From: Jasper Alabama
Burning Brakes
Joined: Dec 2011
Posts: 858
Likes: 75
From: Medford, Oregon
I applaud your efforts for trying to create or put 'function' over form. It would be great if there was a way for you to produce some type of tangible results after your final install. At some point in time I too would like to install a functional diffuser, good luck !! 
Currently designed functional front & side Aero pieces, splitter/side skirts (carbon fiber)!! I will send you a PM, and I will get you a set at cost if you like them, after registering as a vendor.
Last edited by 2FAS4UU; Jul 2, 2015 at 01:04 AM.
Melting Slicks
Joined: Mar 2013
Posts: 3,311
Likes: 384
From: Toronto Ontario
Its very interesting, and I like to see people taking chances with something different , so bravo on that , but it really isn't working, id just sell that one you have and start with one that fits and flows a little better.
Even if it does work ,, it doesn't look right ,, it looks like you just took a part from another car and bolted it on ....
Even if it does work ,, it doesn't look right ,, it looks like you just took a part from another car and bolted it on ....
Instructor
Joined: Jun 2015
Posts: 118
Likes: 8
You have an ENGINEERING degree?? I have 2. Can you even understand what I posted??? You even know what a diffuser is SUPPOSED to do?Again, the OP's attempt at scabbing something on doesn't work for me aesthetically and from the look of how it's mounted, I'm SURE it doesn't do what a diffuser is SUPPOSED to do. It is his car and he can hack it up anyway he likes. You come on a public forum asking stuff like this and you WILL find people that don't see the world you do. Making a FUNCTIONAL diffuser takes a wind tunnel and lots of sensors and trial and error. Doubt 99+% of the street cars need one for what they were intended for, just like those low slung front diffusers/spoilers-just targets for speed bumps/low driveways/parking stops.
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC
I gave you all the physics in my earlier post. You ever take FLUID MECHANICS? I did! You have an ENGINEERING degree?? I have 2. Can you even understand what I posted??? You even know what a diffuser is SUPPOSED to do?
Again, the OP's attempt at scabbing something on doesn't work for me aesthetically and from the look of how it's mounted, I'm SURE it doesn't do what a diffuser is SUPPOSED to do. It is his car and he can hack it up anyway he likes. You come on a public forum asking stuff like this and you WILL find people that don't see the world you do. Making a FUNCTIONAL diffuser takes a wind tunnel and lots of sensors and trial and error. Doubt 99+% of the street cars need one for what they were intended for, just like those low slung front diffusers/spoilers-just targets for speed bumps/low driveways/parking stops.
You have an ENGINEERING degree?? I have 2. Can you even understand what I posted??? You even know what a diffuser is SUPPOSED to do?Again, the OP's attempt at scabbing something on doesn't work for me aesthetically and from the look of how it's mounted, I'm SURE it doesn't do what a diffuser is SUPPOSED to do. It is his car and he can hack it up anyway he likes. You come on a public forum asking stuff like this and you WILL find people that don't see the world you do. Making a FUNCTIONAL diffuser takes a wind tunnel and lots of sensors and trial and error. Doubt 99+% of the street cars need one for what they were intended for, just like those low slung front diffusers/spoilers-just targets for speed bumps/low driveways/parking stops.
100% 
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Le Mans Master
Joined: Jul 2013
Posts: 5,699
Likes: 147
You guys take this stuff too seriously.
Other than on racetracks there isn't much room on the public roads
to go fast enough for this to be a functional benefit.
On the other hand the aesthetics can be appreciated (or not) on all the Posers and race car wannabees while the car is standing still
Other than on racetracks there isn't much room on the public roads
to go fast enough for this to be a functional benefit.
On the other hand the aesthetics can be appreciated (or not) on all the Posers and race car wannabees while the car is standing still
Last edited by StrangelovesM6Vert; Jul 3, 2015 at 04:27 PM.
Racer
Joined: Jun 2013
Posts: 421
Likes: 2
From: Seattle Washington
functional diffuser project
Originally Posted by tandt
Looks like a backwards snowplow. Or maybe he ran over a Honda.
Instructor
Joined: Jun 2015
Posts: 118
Likes: 8
My days are FINE by the way. Have lots of toys and money, good job and a wife I can tolerate most of the time. Oh, and I don't have a snowplow under my Corvette 
Looks a little like the directional veins on a snow thrower I have.
Maybe 2 or 3 of these black veins could go across the back, creative enough for you?
Last edited by tandt; Jul 7, 2015 at 03:50 PM.
Melting Slicks
Joined: Jul 2005
Posts: 2,990
Likes: 346
From: Mt. Pleasant S.C.
Drifting
Joined: Oct 2008
Posts: 1,594
Likes: 189
From: Wilmington DE
If you had a track only car and could prove the functionality I would keep it on. From the pics you have a nice looking Vette with the wheels and fender flares but now you are just ruining it.
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC