Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 10-17-2019, 02:40 AM   #1
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 821
Relocated airbox and intake to rear window

I had a minor problem installing a 2.7L engine with a cable throttle, the throttle plate was further back and my intake tube no longer worked. Sure I could have made something work but I decided to pull the whole airbox out of the engine bay instead. OK mostly I was board. I also added some engine cooling ducts.









__________________
1997 2.5 Boxster NASA Time Trial track car
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 10-17-2019, 06:57 AM   #2
edc
550 Anniversary
 
edc's Avatar
 
Join Date: Jul 2012
Location: Surrey, UK
Posts: 680
Garage
Why not go for the bigger airbox if doing that? Also what is the flexi hose made of? I have seen flimsy ones collapse under pressure and restrict at and power.
edc is offline   Reply With Quote
Old 10-17-2019, 09:33 AM   #3
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 821
Quote:
Originally Posted by edc View Post
Why not go for the bigger airbox if doing that? Also what is the flexi hose made of? I have seen flimsy ones collapse under pressure and restrict at and power.
Well I cut the airbox in half so its very open now, I can't imagine a bigger airbox would be more efficient for this engine but I could be wrong. There's two kinds of tubing there: one is the air intake which is aluminum piping and forced induction silicon elbows. The hoses are just cooling for the engine, they're not under pressure. The bottom picture gives you a better idea of whats going on.
__________________
1997 2.5 Boxster NASA Time Trial track car
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 10-17-2019, 11:03 AM   #4
Registered User
 
Join Date: Feb 2017
Location: Stockholm
Posts: 221
Garage
Isn't that a low pressure area? Maybe better to have the air enter from the roof. Just thinking out loud..
Robert986 is offline   Reply With Quote
Old 10-17-2019, 11:24 AM   #5
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 821
Quote:
Originally Posted by Robert986 View Post
Isn't that a low pressure area? Maybe better to have the air enter from the roof. Just thinking out loud..
Ya....it definitely is. We’ll see how it does.
__________________
1997 2.5 Boxster NASA Time Trial track car
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 10-17-2019, 12:53 PM   #6
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,987
post 91 ...

Boxster Subaru conversion interest?

or perhaps item #26274 ...

https://www.factoryfive.com/order-a-kit/gtm-supercar-kit/
The Radium King is offline   Reply With Quote
Old 10-18-2019, 06:12 AM   #7
Motorist & Coffee Drinker
 
78F350's Avatar
 
Join Date: Jul 2014
Location: Oklahoma
Posts: 2,735
Garage
I like it. If you do want a higher pressure location for the intake, start by looking back at the aerodynamics at 180 km that Fred posted.
Boxster 986 Aerodynamics @180km/hr

Or better, just buy the sexy scoop (linked from one of TRK's old posts, the P-bucket links from the Subaru thread don't work well for me.). Bring the air to where you mounted the box.


__________________
I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.
78F350 is offline   Reply With Quote
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 03:53 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page