I am running a b16b and it is completly stock right now producing 187bhp (notwhp) and i want to start working on a few things.
I know that my B16 has no low end torque, which is fine with me as long as i have that explosive high end. I was told that 421 manis help with low to mid range and 4-1 manis help with top end as they are less restrictive.... is this correct?

i was looking at 2 headers different for the money.....

the DC JDM 4-1 header i heard wasnt too bad. for the money (i havent got too much right now)
and the obvious better choice the
Toda header. (a lot of money but worth it)But i have only seen it in 4-2-1, do they make 4-1?
i know the toda is an amazing header but is the dc gd for the money?

Is 4-1 the way forward for me?
At the same i will be going decat and either running an apexi N1 or 5zigen catback.

The next stage will be running an extreme cam and full valvetrain like buddy club, but probably an m22x cam. and as the head is off, maybe a port and polish and angle job for better air flow.
Then i will be putting some ITBs on there.

What do you think of all this?

THANKS and sorry if i have chucked a lot of info in there, just want your feedback on what i want to run

 

Toda. The best header you can buy for that motor. The DC 4-1 won't make you as much power, but for the money it's pretty decent.

 

can someone tell me the info between 4-2-1 and 4-1???

 

i beleive the 4-2-1 design will give u more midrange and some good topend and the 4-1 is more for top end high rpm power.

 

Does anyone know what a stock b16b puts down to the wheels on an avg. Dynojet?

 

well if a b16 rated at 160 does ~ 133 then im going to guess............. ~155 at the wheels of a b16b with barely any tq.

 

the only place your going to make power is up top. so i think a 4-1 header is the best as the b16b loves the really high revving.

 

Just because a header is a 4-2-1 doesn't mean a 4-1 is going to peak higher. This is a 4-2-1 and actually carries power very high...

 

what header is that? looks pretty gd. any figures with that header?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by J1A1H &raquo;</TD></TR><TR><TD CLASS="quote">what header is that? looks pretty gd. any figures with that header?</TD></TR></TABLE>

SMSP, I believe.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by clean rice &raquo;</TD></TR><TR><TD CLASS="quote">Just because a header is a 4-2-1 doesn't mean a 4-1 is going to peak higher. This is a 4-2-1 and actually carries power very high...

</TD></TR></TABLE>

The reason that header carries power so high is the length of the primaries.


The Toda/DC/Edelbrock don't have the primary length of that header.

- Derek

 

Wow that is an extremely long header....

OP: if you're short on money, try either picking up a used $800+ header like the ssr, smsp, rmf, etc....

if you can't find that, the DC isn't bad

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D-Rob &raquo;</TD></TR><TR><TD CLASS="quote">
The reason that header carries power so high is the length of the primaries.


The Toda/DC/Edelbrock don't have the primary length of that header.

- Derek</TD></TR></TABLE>

Yes I know, what I was getting at is that it is a 4-2-1 though, and yes it's a SMSP.

 

ok well i dont have the money for such a gd header right now... but it will definitely be something i need to get eventually!
Thanks everyone... i think i will settle for the dc 4-1 for now

THANKS AGAIN

 

once again clean rice is right! i have an edelbrock header on mine (b16b) i like it, its primarys appear to be fatter than comptech and dc headers (edelbrock may just use thicker steel i dunno), but you can still get a decent long tube header for a little less than the smsp i know its not on the same level but the vibrant race header 4-2-1 looks pretty nice... about 5 bills

http://cgi.ebay.com/ebaymotors...ZWD1V

 

thanks for the link... Are they a well known brand??? i was looking at their 4-1 for $400!!! Not bad at all?

 

i would get the 4-2-1, vibrant is a good company that has been around for awhile, i have not dealt with them personally but i havent heard anything bad...

 

how about a profab tri y header for this engine? what do you guys think?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rvm &raquo;</TD></TR><TR><TD CLASS="quote">how about a profab tri y header for this engine? what do you guys think?</TD></TR></TABLE>

There's definitely a difference between your conventional 4-2-1 and your 4-2-1 Tri-Y header. The tri-Y design is far superior, especially a tuned unit like the smsp one.

Here's a dyno comparison of a DC 4-1 vs. a DC 4-2-1. The 4-1 is the higher of the two.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rvm &raquo;</TD></TR><TR><TD CLASS="quote">how about a profab tri y header for this engine? what do you guys think?</TD></TR></TABLE>

Design is good, quality is not. I would get it over that vibrant though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">

There's definitely a difference between your conventional 4-2-1 and your 4-2-1 Tri-Y header. The tri-Y design is far superior, especially a tuned unit like the smsp one.

Here's a dyno comparison of a DC 4-1 vs. a DC 4-2-1. The 4-1 is the higher of the two.

</TD></TR></TABLE>

i don't think smsp's is a tri-y design.

and to whoever said the dc is good, it is not. it's crap. get the edelbrock header and do a 2.5 collector mod too it. that will be on par, if not dead even, with the toda header. and i believe they're like 200 something to start..if they haven't sold out yet.

 

4-1 vs 4-2-1 debate, will never end! Choose header on based on where you want peak power to occur based upon your mods, your gearing and obviously suited to type to your driving you're going to do.

IMHO other great choice for the money, is the JGE Tri-Y header. being under $470, its pretty good bang for the buck, at least from the design point of view and price!


http://cgi.ebay.com/ebaymotors...wItem

 

thank for your responses, right now i'm deciding what header to buy, i want power at low - mid range i think the 4 2 1 header will do the job for me, right now i have to decide what brand / design i should buy! thanks for your help.

 

Hmmm i saw the ebay link , they say this:

We have tested this header and have seen it on engines with over 300Hp.

This doesn't sound right to me... but its a good choice for the price.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ipodhustle &raquo;</TD></TR><TR><TD CLASS="quote">i don't think smsp's is a tri-y design.

and to whoever said the dc is good, it is not. it's crap. get the edelbrock header and do a 2.5 collector mod too it. that will be on par, if not dead even, with the toda header. and i believe they're like 200 something to start..if they haven't sold out yet.</TD></TR></TABLE>

If SMSP's header is not a Tri-Y design, then i'd like to know what is?

 

http://www.team-integra.net/se...eID=2
http://www.team-integra.net/se...D=554
http://www.team-integra.net/se...ID=50

good readz