CorvetteForum - Chevrolet Corvette Forum Discussion

Autocrossing & Roadracing Suspension Setup for Track Corvettes, Camber/Caster Adjustments, R-Compound Tires, Race Slicks, Tips on Driving Technique, Events, Results
Sponsored by:
Sponsored by:

C6 rear diffuser

Thread Tools
 
Search this Thread
 
Old Jan 7, 2016 | 10:24 AM
Share
  #21  
383's Avatar
383
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2010
Posts: 1,944
Likes: 48
From: CT
Default
I know i know i keep bringing this up but its cool stuff
Ive been reading about vortex generators and it seems like a larger diffuser angle could be used if VGs were put at the throat. Has anyone tried this with a yarn tuft /camera test to see if its effective?
Reply
0
Old Jan 7, 2016 | 01:27 PM
Share
  #22  
jlutherva's Avatar
jlutherva
Drifting
15 Year Member
Liked
Loved
 
Joined: Jul 2007
Posts: 1,597
Likes: 10
From: Cartersville Georgia
Default Here's mine


I got this with the Pfadt car. I installed for the first time this winter. The undertray goes all the way up to the rear edge of the doors.


Jim
Reply
0
Old Jan 7, 2016 | 03:51 PM
Share
  #23  
fmcokc's Avatar
fmcokc
Pro
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 704
Likes: 111
From: Edmond Oklahoma
Default
Read this:


https://www.google.com/url?sa=t&rct=...g7760eotTslcHw
Reply
1
Old Jan 7, 2016 | 09:05 PM
Share
  #24  
383's Avatar
383
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2010
Posts: 1,944
Likes: 48
From: CT
Default
Originally Posted by fmcokc
So it seems like steep angles work with higher ride heights. I wonder how a short and steep one will work like the one ill make. The twin vortices sure make the yarn tuft test harder
Reply
0
Old Jan 8, 2016 | 08:00 AM
Share
  #25  
el es tu's Avatar
el es tu
Thread Starter
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2011
Posts: 3,582
Likes: 46
From: va
Default
Originally Posted by jlutherva


I got this with the Pfadt car. I installed for the first time this winter. The undertray goes all the way up to the rear edge of the doors.


Jim
any pictures of the underside?

Originally Posted by 383
So it seems like steep angles work with higher ride heights. I wonder how a short and steep one will work like the one ill make. The twin vortices sure make the yarn tuft test harder
Are you keeping the rear valence and stock style exhaust? Modding that area can gain you a ton of space.

Reply
0
Old Jan 8, 2016 | 04:43 PM
Share
  #26  
383's Avatar
383
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2010
Posts: 1,944
Likes: 48
From: CT
Default
Originally Posted by el es tu



Are you keeping the rear valence and stock style exhaust? Modding that area can gain you a ton of space.

nope its all going. I have some plastic sign board im going to use for fitting then mold carbon from it
Reply
0
Old Jan 8, 2016 | 04:51 PM
Share
  #27  
el es tu's Avatar
el es tu
Thread Starter
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2011
Posts: 3,582
Likes: 46
From: va
Default
these are low cost and will exit right below the bumper cover when mated to the stock axle pipes:
Thrush welded:
2.5" (part# 17659) or 3" (part# 17660)

Reply
1
Old Jan 8, 2016 | 05:05 PM
Share
  #28  
383's Avatar
383
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2010
Posts: 1,944
Likes: 48
From: CT
Default
SWEET thanks dude!
I haven't had time to measure and search what would work and not be too loud
Any sound clips of yours assuming you use this one
Reply
0
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jan 8, 2016 | 07:18 PM
Share
  #29  
el es tu's Avatar
el es tu
Thread Starter
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2011
Posts: 3,582
Likes: 46
From: va
Default
no sound clips but they are supposedly the same design as flowmaster 40s

most auto parts stores should have them in stock for about $30 -$40


Reply
0
Old Jan 8, 2016 | 08:01 PM
Share
  #30  
jlutherva's Avatar
jlutherva
Drifting
15 Year Member
Liked
Loved
 
Joined: Jul 2007
Posts: 1,597
Likes: 10
From: Cartersville Georgia
Default
Originally Posted by el es tu
any pictures of the underside?



Are you keeping the rear valence and stock style exhaust? Modding that area can gain you a ton of space.

Tom,
I removed the backup lamps and mod'ed the valence to use the existing brackets that Arron Pfadt was using for mounting. The car had a valence on it when I got it. The exhaust is essentially straight pipes with some small resonators in front of the X pipe.

Pics of the underside - Uh no. I'll take some next time I remove it.

Jim
Reply
0
Old Dec 24, 2020 | 06:15 PM
Share
  #31  
ygto1's Avatar
ygto1
Melting Slicks
All Eyes On Me
Liked
Loved
Community Favorite
 
Joined: Feb 2016
Posts: 2,148
Likes: 828
From: Kalamazoo Michigan
Default
Nice idea. I'm going to be making mine soon.
Reply
0
Back to Subforum
Autocrossing & Roadracing
View Next Unread
c5z HPDE brake pad discussion




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 05:38 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE