Best 4-1 header for sohc
03-12-2003, 12:37 PM
#1
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Best 4-1 header for sohc
who makes the best 4-1 header for the y8. I know dc sports is one but i hear the quality of it is not that great. I was thinking of RSR on but its 4-2-1. Anybody know
thanks.
thanks.
03-12-2003, 01:25 PM
#2
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Re: Best 4-1 header for sohc (willyboyD16)
who makes the best 4-1 header for the y8. I know dc sports is one but i hear the quality of it is not that great. I was thinking of RSR on but its 4-2-1. Anybody know
thanks.
thanks.
get what you want.
03-12-2003, 01:52 PM
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Re: Best 4-1 header for sohc (willyboyD16)
i run the dc 4-1 on my y8..ive had it for about a year and a half and nothing's gone wrong with it... u feel the top end a lil more, but nuthin major...
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03-12-2003, 02:20 PM
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Re: Best 4-1 header for sohc (EricEG)
I thought there was a diff in designs like...
4-1=more low end
4-2-1= more top end
I remember hearing that somewhere.
4-1=more low end
4-2-1= more top end
I remember hearing that somewhere.
4-1=more top end
4-2-1=BETTER low end and midrange
hehe i knew it was somethign like that though-
03-12-2003, 02:58 PM
#11
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Re: Best 4-1 header for sohc (RyanCivic2000)
check the write up done by dave @ hada
http://www.hadamotorsport.com/tech/r...emc/index.html
for the money Bisi's header
[Modified by eg6ajk, 5:59 PM 3/12/2003]
http://www.hadamotorsport.com/tech/r...emc/index.html
for the money Bisi's header
[Modified by eg6ajk, 5:59 PM 3/12/2003]
03-12-2003, 03:24 PM
#12
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Re: Best 4-1 header for sohc (eg6ajk)
03-12-2003, 03:28 PM
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Re: Best 4-1 header for sohc (SpoonSportsEH2)
Anyone have pics of the Bisi header installed??? I know you have to get rid of A/C to run it...just want to see how much room it actually takes up
Thanks
Thanks
03-12-2003, 06:44 PM
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Re: Best 4-1 header for sohc (Hooch at 8400-RPM)
hey i know the D-series ain't much but i got a few tricks up my sleeve. Since i had to sell my turbo setup I just want enough to hang with or beat a stock si.
thanks for the opinion though
thanks for the opinion though
03-13-2003, 12:04 AM
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Re: Best 4-1 header for sohc (willyboyD16)
Anyone here have the Type 1 4into1 header? I was kinda interested in getting that one:
http://www.ipsracing.com/engine/head...peone_421.html
http://www.ipsracing.com/engine/head...peone_421.html
03-13-2003, 02:58 AM
#16
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Re: Best 4-1 header for sohc (SmobbinSi)
Some links on the Bisimoto header:
https://honda-tech.com/zerothread?id=419324
http://pub143.ezboard.com/fhondadser...cID=1635.topic
https://honda-tech.com/zerothread?id=419324
http://pub143.ezboard.com/fhondadser...cID=1635.topic
03-13-2003, 01:34 PM
#18
Solbros Owns Me
Re: Best 4-1 header for sohc (gen 5 hatch)
I think 4-1's are a waste for the sohc. True, 4 to 1's are designed for top end power, but that's in the 7+ rpm range, which sohc's rarely move into. For a B18C5 which revs to 9 grand, it's worth it, but not the sohc.
I feel like you would be better off with a 4-2-1. Give you better help in the mid range, while still giving great results on the high end. You won't be utilizing the design of the 4-1 with stock valvetrain and stock cam
I feel like you would be better off with a 4-2-1. Give you better help in the mid range, while still giving great results on the high end. You won't be utilizing the design of the 4-1 with stock valvetrain and stock cam
03-13-2003, 01:34 PM
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Re: Best 4-1 header for sohc (00-ITR-373)
03-13-2003, 02:03 PM
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Re: Best 4-1 header for sohc (Evs-One)
I think 4-1's are a waste for the sohc. True, 4 to 1's are designed for top end power, but that's in the 7+ rpm range, which sohc's rarely move into. For a B18C5 which revs to 9 grand, it's worth it, but not the sohc.
I feel like you would be better off with a 4-2-1. Give you better help in the mid range, while still giving great results on the high end. You won't be utilizing the design of the 4-1 with stock valvetrain and stock cam
I feel like you would be better off with a 4-2-1. Give you better help in the mid range, while still giving great results on the high end. You won't be utilizing the design of the 4-1 with stock valvetrain and stock cam
03-13-2003, 02:33 PM
#21
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Re: Best 4-1 header for sohc (RyanCivic2000)
I think 4-1's are a waste for the sohc. True, 4 to 1's are designed for top end power, but that's in the 7+ rpm range, which sohc's rarely move into. For a B18C5 which revs to 9 grand, it's worth it, but not the sohc.
I feel like you would be better off with a 4-2-1. Give you better help in the mid range, while still giving great results on the high end. You won't be utilizing the design of the 4-1 with stock valvetrain and stock cam
That's bullcrap. Many D16's spend their time in high rpm. Truely in a race when are you in mid and low range rpms? I use 4-1 header on my SOHC and have had excellent results from 5800-7200. When i get a new ecu with a higher revlimiter I'll see even more benefits.
I feel like you would be better off with a 4-2-1. Give you better help in the mid range, while still giving great results on the high end. You won't be utilizing the design of the 4-1 with stock valvetrain and stock cam
That's bullcrap. Many D16's spend their time in high rpm. Truely in a race when are you in mid and low range rpms? I use 4-1 header on my SOHC and have had excellent results from 5800-7200. When i get a new ecu with a higher revlimiter I'll see even more benefits.
my d16 spends alot of time in the 5000+ rpm range on a regular basis and my stock valvetrain are still in excellent condition. not bad for a d16 with 134,000+ miles.
03-13-2003, 02:37 PM
#22
Solbros Owns Me
Re: Best 4-1 header for sohc (sleeperciv)
I'm saying you're gonna show about the same results at your 7200 peak as well as better results in the mid range.
4 to 1's are for high revs...ie 7000+
show me a dyno that shows the huge difference betwen a 4-2-1 and a 4-1 on a sohc up to 7200 rpm.
I've had a DC 4-1 on my sohc and I currently have a stock exhaust mani for the better mid rang, and my high end is still excellent.
4 to 1's are for high revs...ie 7000+
show me a dyno that shows the huge difference betwen a 4-2-1 and a 4-1 on a sohc up to 7200 rpm.
I've had a DC 4-1 on my sohc and I currently have a stock exhaust mani for the better mid rang, and my high end is still excellent.
03-13-2003, 02:51 PM
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Re: Best 4-1 header for sohc (Evs-One)
4-2-1 pull more low end torque & hp up to around 5000rpm. The power then levels off to about stock. 4-1's pull more hp 5000+. 90% of my time in a race is above 5000rpm. 4-2-1 is good for nice daily driving torque. DC sports used to have the dynos that showed this on their webpage. It doesnt want to load for me now so i cant go check.
03-13-2003, 02:53 PM
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Re: Best 4-1 header for sohc (willyboyD16)
Kamikaze 4-1 Ceramic Header
Thats what I got, works great, u get to run no cat or a high flow tho.
They east gaskets kind fast, had to replace mine 3 times, already.
http://www.importparts.com sell them for cheap, i got mine there.
The are great if your going to Supercharge you car, but doing that on a d16 is kind a waste you might as well just get a turbo, in that case same the cash, and buy a turbo Kit, or make a home made one
Thats what I got, works great, u get to run no cat or a high flow tho.
They east gaskets kind fast, had to replace mine 3 times, already.
http://www.importparts.com sell them for cheap, i got mine there.
The are great if your going to Supercharge you car, but doing that on a d16 is kind a waste you might as well just get a turbo, in that case same the cash, and buy a turbo Kit, or make a home made one
03-13-2003, 03:25 PM
#25
Honda-Tech Member
Re: Best 4-1 header for sohc (Quad-Damge)
Quad-you runnin a SC? If not isnt the Kamikaze WAY too free flowing?
Whatever you do...do not get a Powertech (big for domestics in MI...not good on lil hondas though...I made that mistake) In fact the powertech is so bad...Im putting the stock one back on soon as it hits 60 degrees
Whatever you do...do not get a Powertech (big for domestics in MI...not good on lil hondas though...I made that mistake) In fact the powertech is so bad...Im putting the stock one back on soon as it hits 60 degrees