Can I damage my engine by running open headers?
05-20-2004, 04:46 PM
#1
Junior Member
Thread Starter
Join Date: Dec 2003
Location: Ft. Lauderdale, FL
Posts: 85
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 Black Firebird
Engine: Chevy 350ci
Transmission: 700 R4
Can I damage my engine by running open headers?
Can I damage my engine by running open headers?
05-20-2004, 07:20 PM
#5
Supreme Member
Join Date: Jan 2002
Location: Valley of the Sun
Posts: 3,852
Likes: 0
Received 0 Likes
on
0 Posts
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
i heard that it burn valves??? true?
Again not likely.
The only way you can ruin valves like that is if you run a really short huge pipe header. It happens when cold air or water hits the exhaust valve and warps, burns it up or damages it.
With any headers that you could run in a 3rd gen you will not have any problems
05-20-2004, 11:35 PM
#6
TGO Supporter
Join Date: Oct 2002
Location: Saskatoon, SK, Canada
Posts: 9,067
Likes: 0
Received 1 Like
on
1 Post
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
It will be fine. Guys have been doing it for 40 or 50 years now, since the small block chevy was invented.
Trending Topics
05-21-2004, 12:27 AM
#8
Supreme Member
Join Date: May 2001
Location: Pitman, NJ
Posts: 2,009
Likes: 0
Received 5 Likes
on
4 Posts
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Originally posted by White91GTA
if you are not careful though, you will float the valves
if you are not careful though, you will float the valves
05-21-2004, 12:46 AM
#9
Senior Member
Join Date: Dec 2003
Location: Oklahoma
Posts: 647
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by 88IROC350TPI
Please explain that one....
Please explain that one....
05-21-2004, 09:17 AM
#10
Supreme Member
Join Date: Nov 2001
Location: heartland
Posts: 2,743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 89rs (previous 2.8)
Engine: 406
Transmission: 700r4 (for now)
Originally posted by White91GTA
that is just what i have heard, i think it is due to the lack of backpressure. you have to have a little backpressure in order for the engine to function properly
that is just what i have heard, i think it is due to the lack of backpressure. you have to have a little backpressure in order for the engine to function properly
Myth!!!
I could see floating the valves if you have no tach.....maybe not hear the motor truley due to exhaust noise.....
05-21-2004, 09:42 AM
#11
Moderator
iTrader: (1)
Join Date: Mar 2002
Location: Chasing Electrons
Posts: 18,406
Likes: 0
Received 216 Likes
on
202 Posts
Car: check
Engine: check
Transmission: check
Re: Can I damage my engine by running open headers?
Originally posted by Nightrider350
Can I damage my engine by running open headers?
Can I damage my engine by running open headers?
RBob.
05-21-2004, 09:45 AM
#12
Supreme Member
Join Date: Jun 2001
Location: Charleston, SC
Posts: 9,550
Likes: 0
Received 2 Likes
on
2 Posts
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by White91GTA
that is just what i have heard, i think it is due to the lack of backpressure. you have to have a little backpressure in order for the engine to function properly
that is just what i have heard, i think it is due to the lack of backpressure. you have to have a little backpressure in order for the engine to function properly
1. the valve float myth you heard is outright stupid. lets pretend that it was true... so you're saying backpressure the kind that would push the valve OPEN is going to help it close?? think about it.
2. BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD! BACKPRESSURE = BAD!
there is zero need for backpressure.
valves dont need it
the engine doesnt need it
EGR doesnt need it.
now there IS a diff between exhaust gas velocity depending upon pipe size... a smaller pipe allows higher speed at low RPM, helping TQ... the size is smaller, but its NOT backpressure that helped the TQ.. its the more efficent pipe for the lower volume of air.
backpressure causes pumping loss... thats all it does.
Thread
Thread Starter
Forum
Replies
Last Post
