Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 10-22-2012, 05:32 AM   #1
Registered User
 
jaykay's Avatar
 
Join Date: Sep 2009
Location: toronto
Posts: 2,290
Exhaust Snap and Pop

I am getting some snaps and pops when blipping the throttle for down shifts. It sounds great but I am wondering if this an indication of problem such as lean condition or it's simply a function of my bypass exhaust and 2nd cat delete pipes; softronic flash; 74 mm tb.

Its not an out and out back fire but a....pop! Snap! I realize that I am using exhaust noise as feedback for throttle blips.....the snap crackle pop catches me out such that my engine speed is not spot on when let out the clutch

Anyway thoughts?....durametric scan is clean
__________________
00 986 S....with a few tweaks
jaykay is offline   Reply With Quote
Old 10-22-2012, 05:43 AM   #2
2001 Arctic Silver 2.7
 
tony_fury's Avatar
 
Join Date: Jun 2012
Location: Huntington Beach,CA
Posts: 310
Garage
Popping upon letting off the accelerator and down shifting may be an exhaust leak sucking in air..
Seen this a lot with motorcycle exhaust changes, small leak will do this..
T
__________________
2001 Boxster - Arctic Silver Metallic
RMS, IMS, 87.5K
tony_fury is offline   Reply With Quote
Old 10-22-2012, 06:37 AM   #3
Registered User
 
jaykay's Avatar
 
Join Date: Sep 2009
Location: toronto
Posts: 2,290
Popping on decel could indicate an good state of tune.....but I am getting it right on the the blip for downshifts.

I will have a look at the exhaust...thanks!
__________________
00 986 S....with a few tweaks
jaykay is offline   Reply With Quote
Old 10-22-2012, 09:54 AM   #4
Registered User
 
jaykay's Avatar
 
Join Date: Sep 2009
Location: toronto
Posts: 2,290
....I suppose with a blip you are throwing a fresh charge in an over run condition....so it's going to pop in an unmuffled exhaust... my bypass pipes
__________________
00 986 S....with a few tweaks
jaykay 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 05:25 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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