Open or closed
Thread Starter
Member
Joined: Oct 2001
Posts: 195
Likes: 0
From: Marion, Indiana, USA
Car: 85 Camaro
Engine: 350 Carbed
Transmission: Stock 700r4
Open or closed
Should I run open or closed exhaust? I am going racing on Wed. the 9th at Muncie Drag Way and was wanting to pull my best times. I use dynomax shorties with 1 5/8 primarys and 2 1/2 collectors.
Thanks
-Terry-
Thanks
-Terry-
Supreme Member
Joined: Feb 2003
Posts: 5,740
Likes: 3
From: Glen Allen, VA
Open is always better. Don't listen to people who say you need backpressure, thats crap. What you need is velocity and scavenging, but open headers will be better than full exhaust for sure!
Senior Member
Joined: Dec 2001
Posts: 731
Likes: 2
From: Blacksburg, VA
Car: '92 Rally Sport
Engine: LO3
Transmission: 700R4
Read Ed's post in this thread. It explains a lot.
https://www.thirdgen.org/techbb2/sho...t=backpressure
https://www.thirdgen.org/techbb2/sho...t=backpressure
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