Headers? Loss of Low end?
#1
Senior Member
Thread Starter
Join Date: Nov 2001
Location: Vancouver BC
Posts: 444
Likes: 0
Received 0 Likes
on
0 Posts
Headers? Loss of Low end?
Hey to people who have aftermarket Headers?
After installing did you notice a dramatic loss in your low end?
How much gain would did you get form the headers? Mid/high end?
My headers are a custom design similar to the racinb beat but the piping is extended in a true dual format which connects into one two feet before the y pipe.
I'm currently competing in C/SP for autox and after installing my headers I noticed a huge loss in my low end. Would it be viable to use oper headers for autox?
After installing did you notice a dramatic loss in your low end?
How much gain would did you get form the headers? Mid/high end?
My headers are a custom design similar to the racinb beat but the piping is extended in a true dual format which connects into one two feet before the y pipe.
I'm currently competing in C/SP for autox and after installing my headers I noticed a huge loss in my low end. Would it be viable to use oper headers for autox?
#2
No longer cares
Join Date: Apr 2002
Location: just a bit north of your business
Posts: 1,345
Likes: 0
Received 0 Likes
on
0 Posts
You messed up the dynamics of the header primary length. Collector placement is crucial in performance of a header. By making a long primary system you should've gained bottom end but, it sounds like you made them too long and lost it.
The RB streetable header is a medium length collector design aimed at doing everything well but, suffers on the top and very bottom end because of that compromise. I run it with good success. There was a slight loss in bottom end on the stock porting though.
The RB streetable header is a medium length collector design aimed at doing everything well but, suffers on the top and very bottom end because of that compromise. I run it with good success. There was a slight loss in bottom end on the stock porting though.
#3
FC Mobsta
i agree....i lost a little low end...but upon putting my header/pre-silencer on, I didnt have time to fab. a feed tube to my actuators..so my ports are wired now...I think the header gave me a little low end lose though...but from 3800 to 6200 it rips!
#5
Senior Member
Thread Starter
Join Date: Nov 2001
Location: Vancouver BC
Posts: 444
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the repsonse guys. Well I noticed a huge loss in my low end. My exhaust sytem is header to resonator and to a 3inch piping turbo catback N1 exhaust.
But my gains in mid and high end were very nice indeed.
I attached a pictures of the header on my car.
http://www.teamfc3s.org/forum/member...hp?img_id=1162
But my gains in mid and high end were very nice indeed.
I attached a pictures of the header on my car.
http://www.teamfc3s.org/forum/member...hp?img_id=1162
Trending Topics
#8
Seduced by the DARK SIDE
Join Date: Apr 2001
Location: Orange Park FL (near Jax)
Posts: 7,323
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by marcus219
i lost a little low end...but upon putting my header/pre-silencer on, I didnt have time to fab. a feed tube to my actuators..so my ports are wired now.
i lost a little low end...but upon putting my header/pre-silencer on, I didnt have time to fab. a feed tube to my actuators..so my ports are wired now.
Here is a test: Time a low end pull 1500-3500 in 4th gear. Then close the aux ports and time the same pull.
My 91 NA was 3-4 seconds faster with the ports closed.
#9
Do a barrel roll!
iTrader: (4)
Originally posted by Wormiez
Thanks for the repsonse guys. Well I noticed a huge loss in my low end. My exhaust sytem is header to resonator and to a 3inch piping turbo catback N1 exhaust.
But my gains in mid and high end were very nice indeed.
I attached a pictures of the header on my car.
http://www.teamfc3s.org/forum/member...hp?img_id=1162
Thanks for the repsonse guys. Well I noticed a huge loss in my low end. My exhaust sytem is header to resonator and to a 3inch piping turbo catback N1 exhaust.
But my gains in mid and high end were very nice indeed.
I attached a pictures of the header on my car.
http://www.teamfc3s.org/forum/member...hp?img_id=1162
#10
Check out these dyno results Header Dyno
#11
hrm
i can vouch for wormiez losing a lot of power..
we raced til the end of 2nd only and i was even with him and he has a few more mods than i do! (read: header, etc)
he kept blabbing to me how wait until 3rd gear :p
i can vouch for wormiez losing a lot of power..
we raced til the end of 2nd only and i was even with him and he has a few more mods than i do! (read: header, etc)
he kept blabbing to me how wait until 3rd gear :p