What causes exhaust rasp?
#1
Teching In
Thread Starter
iTrader: (2)
Join Date: Oct 2005
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
What causes exhaust rasp?
In general, if you take off your cats in a car or truck, what is the actual mechanics of what causes the rasp? Also what is the best way to eliminate rasp on a vehicle with no cats?
#2
TECH Veteran
iTrader: (1)
I think its caused by the exhaust pulsations. Certain RPM's are ideal and rasp sometimes is unbearable at certain RPM's versus others. My friends TransAm is raspy enough at 2500 RPM's it makes my ears bleed. Dynomax bullets serve well as a resonator. Put one in line right after the y-pipe. Should do the trick.
#3
Teching In
Thread Starter
iTrader: (2)
Join Date: Oct 2005
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
well right now I have a dynomax ultraflow and no cats on my truck with a y-pipe and its raspy enough that its annoying but the rumble of the muffler sounds really good if you take the rasp away. Do you think if i switched to a super turbo muffler it would be less raspy? Do you think it would be too quiet with the super turbo compaired to the ultra flow?
thanks
ps nice rims on your truck
thanks
ps nice rims on your truck
Thread
Thread Starter
Forum
Replies
Last Post
gaps
GMT 800 & Older GM General Discussion
10
10-15-2015 02:53 PM
Superman09
Sponsor's Announcements, Sales, and Specials
9
09-25-2015 05:55 AM