Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> Purple Hornies Anybody?
User Name
lost password?   |   register now

Thread: Purple Hornies Anybody? Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
07-28-2009 07:54 PM
chewyscool I got them on my truck this past weekend. They quieted down the drone of the exhaust I put on it 2 months ago. I used the same system I bought 10 years ago HeartThorb, but this time for some reason I got a terrible drone at crusing speeds. I'm happy with the final result, and thanks for the posts.
07-27-2009 08:09 PM
jimfulco If the openings are facing the engine, you'll get a little less noise, and flow will be reduced. Facing the outlet, more noise and more flow. Either way, it won't flow as well as a muffler with flush holes in an equally-sized inner flow tube.
07-24-2009 09:40 PM The perforations just let the sound/pressure waves expand into the outer chamber. The tone of the muffler can be changed by the number and placement of the slots or perforations.
07-24-2009 07:26 PM
Purple Hornies Anybody?

May be a dumb question but, inside the tube, the perferations only are open from one side? Are these reversable? My truck has a similar set with the perferations open to the rear of the exhaust and that is the only way that they could be installed. Does the sound just bounce around in the tubes entering from any direction? It would seem to me that the perferations should face the engine as to absourb some of the exhaust? Is this right?
(most of the time )

Posting Rules
You may post new threads
You may 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 Off

All times are GMT -6. The time now is 12:11 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.