Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster Racing Forum

Post Reply
 
LinkBack Thread Tools Display Modes
Old 05-30-2018, 10:49 AM   #1
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Front fender vents

There is a steep penalty in NASA TT for front splitters but no penalty for rear wings so you end up with a challenge balancing the car out. I’m wondering if fender vents above the wheels would help. Boxsters have not only brake cooling air entering the wells but also the radiator air (if you’ve modified your fenders like most of us have) so I think boxsters would be a good candidate. Has anyone tried this?



__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 05-30-2018, 10:58 AM   #2
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 3,121
i've thought about it, but probably the most invasive mod you can do - cutting and such. have you done the centre vent?
The Radium King is offline   Reply With Quote
Old 05-30-2018, 11:01 AM   #3
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 3,121






and of course the new gt3.
The Radium King is offline   Reply With Quote
Old 05-30-2018, 11:09 AM   #4
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Quote:
Originally Posted by The Radium King View Post
i've thought about it, but probably the most invasive mod you can do - cutting and such. have you done the centre vent?
I don’t have a center radiator so no, you can only get away with it if they’re for “cooling” technically the fender vents promote brake cooling so people get away with it. I think I might go for it.
__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 05-30-2018, 11:30 AM   #5
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Here's what I'm thinking, the Rough Mustang vents are flexible, effective and cheap. Apparently the best position is at the top of the wheel well where air pressure is the highest (the tire pulls air up the back as it spins and the incoming from the ducts and rad meets it at the top of the tire.

__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 05-30-2018, 12:17 PM   #6
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Probably a better route.

c6 corvette fender vents



Also has anyone done any engine venting? Maybe existing through the top hatch and out the clamshell?
__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 05-30-2018, 12:57 PM   #7
Registered User
 
Cunningr's Avatar
 
Join Date: Mar 2016
Location: Spain
Posts: 985
Interesting idea, you need to see which flows better with the porsche lines though. They not have one for 996 cars?
__________________
2000 Boxster S Ocean Blue Metalic
Cunningr is offline   Reply With Quote
Old 05-30-2018, 01:31 PM   #8
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Quote:
Originally Posted by Cunningr View Post
Interesting idea, you need to see which flows better with the porsche lines though. They not have one for 996 cars?
Oddly not that I can find. You’d think with the new GT3 fender vents someone would be making a kit for the 996 or 997
__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 05-30-2018, 01:50 PM   #9
Registered User
 
Cunningr's Avatar
 
Join Date: Mar 2016
Location: Spain
Posts: 985
Quote:
Originally Posted by truegearhead View Post
Oddly not that I can find. You’d think with the new GT3 fender vents someone would be making a kit for the 996 or 997
Yeah really, I tried a google search too.
__________________
2000 Boxster S Ocean Blue Metalic
Cunningr is offline   Reply With Quote
Old 05-30-2018, 01:58 PM   #10
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 3,121
Quote:
Originally Posted by truegearhead View Post
I don’t have a center radiator so no, you can only get away with it if they’re for “cooling” technically the fender vents promote brake cooling so people get away with it. I think I might go for it.
perhaps install a centre rad - for cooling - approved. and only a fool would vent it down ...
The Radium King is offline   Reply With Quote
Old 05-30-2018, 02:00 PM   #11
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 3,121
Quote:
Originally Posted by truegearhead View Post
Here's what I'm thinking, the Rough Mustang vents are flexible, effective and cheap. Apparently the best position is at the top of the wheel well where air pressure is the highest (the tire pulls air up the back as it spins and the incoming from the ducts and rad meets it at the top of the tire.
problem is that the top of our fenders is curved, so tough to find anything that would match that curve properly. that's why i like the first pic i posted - just several slashes across the fender, then bend them down.
The Radium King is offline   Reply With Quote
Old 05-30-2018, 07:17 PM   #12
Registered User
 
Join Date: Jul 2005
Location: MA
Posts: 880
Subscribed.
__________________
98 Arena Red 986
Stroked & Blown is offline   Reply With Quote
Old 05-30-2018, 09:38 PM   #13
Registered User
 
Cunningr's Avatar
 
Join Date: Mar 2016
Location: Spain
Posts: 985
Quote:
Originally Posted by The Radium King View Post
problem is that the top of our fenders is curved, so tough to find anything that would match that curve properly. that's why i like the first pic i posted - just several slashes across the fender, then bend them down.
Yeah I gave a better look at the pic, that would be the way to go true cut into vender luvers, like the old hot rod uses. That would flow, and old school hotrod fabricator should be able to do that. Isnt there an inner fender well would need some kind of venting as well to connect the 2 points to actually get the heat out?
__________________
2000 Boxster S Ocean Blue Metalic
Cunningr is offline   Reply With Quote
Old 05-30-2018, 10:18 PM   #14
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 3,121
plastic liner - can be cut or removed.
The Radium King is offline   Reply With Quote
Old 05-31-2018, 02:49 AM   #15
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Quote:
Originally Posted by The Radium King View Post
problem is that the top of our fenders is curved, so tough to find anything that would match that curve properly. that's why i like the first pic i posted - just several slashes across the fender, then bend them down.
Ya I agree, the problem is not skilled enough to cut and bend the fenders and make it look right without rewraping or repainting both fenders. I’m thinking the aluminum or ABS panels would take the fender shape with a enough rivets
__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 05-31-2018, 07:30 AM   #16
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 3,121
i'd thought about that but it's a significant bend and my fear was the the louvers would distort (and not look cool). i don't live close enough to anywhere to actually get my hands on one to see. there was a company making a cf product for the gt2 that is nla. hey, you can always chumpcar it and get the deed done with a hole saw. otherwise, check the aero - from what i'd read, the highest pressure area is actually just in front of the wheel centreline.
The Radium King is offline   Reply With Quote
Old 05-31-2018, 09:26 AM   #17
Registered User
 
Join Date: Jul 2005
Location: MA
Posts: 880
maybe buy some janky fenders from Woody to test stamped vents? If it works, then do it to your originals?
__________________
98 Arena Red 986
Stroked & Blown is offline   Reply With Quote
Old 06-01-2018, 05:25 AM   #18
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Well TT director just confirmed that this is illegal. Not sure how everyone is getting away with it but I’d rather not test the waters. Someone else should carry the torch though!

Happy Friday

__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Post Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:29 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page