chads

I am looking to spend NO more than $500 on a header and NO more than 250 for an intake.

I dont care about low end tq. cuz i dont have any anyways, I want to improve my 5600-8300rpm range.

I will consider an IM and a TB later on so sugestions there would be nice.

TIA!!

00Red_SiR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chads &raquo;</TD></TR><TR><TD CLASS="quote">I am looking to spend NO more than $500 on a header and NO more than 250 for an intake.

I dont care about low end tq. cuz i dont have any anyways, I want to improve my 5600-8300rpm range.

I will consider an IM and a TB later on so sugestions there would be nice.

TIA!!</TD></TR></TABLE>

If you don't have much low end torque then the last thing you want to do is hurt it anymore and instead do everything to enhance it throughout your rev range. If I were you I would go with a CAI type of intake since they help torque production a great deal. I have seen the AEM V2 for less than your budget price on ebay so I'd go for that one if you want the best and plan on staying NA. You should be able to get the DC 4-2-1 header for a good price which will help your car throughout the rev range. Just remember that the car that produces the highest AVERAGE power (area under the dyno curve) is always faster than the one that makes the highest PEAK power and is more fun to drive. Both of those items are high quality and will easily fit your budget with lots to spare.

chads

hmmmm well will I loos any hp up top if i go with a 4-2-1 header?

is there a header that is a step up from a DC?

where can I order a jdm DC?

Luserkid

If you want top end go with a 4-1 header.

00Red_SiR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chads &raquo;</TD></TR><TR><TD CLASS="quote">hmmmm well will I loos any hp up top if i go with a 4-2-1 header?

is there a header that is a step up from a DC?

where can I order a jdm DC?</TD></TR></TABLE>

well if you lost 1 or 2 hp at peak and gained 3 or 4 throughout the rest of the powerband you're gonna have a faster car bottom line and that's the proper way of looking at it since that's what you're really after. To be honest the 4-1 isn't significantly better than the 4-2-1 in any regard..even in top end. I'm saying this based on different cars that I saw dyno'd with each header including my own. IMO it's the 2" collector that limits the 4-1 vs the 4-2-1 (same size) in top end performance. I feel that the 4-1 for the Si(R) would have performed better in the top end if it had a 2.25" collector but that probably would have kept it from being CARB legal.

The JDM DC header would be considered a step down with your particular setup as you'd lose power due to the fact that your engine wouldn't be able to take advantage of the larger header. If you want to put some cams in the car and plan on doing A LOT of high RPM driving, only then might it make sense to go larger. Ebay has lots of DC headers on it for a good price.

chads

where can i get dyno graphs for both the 4-2-1 and 4-1 on an em1(B16)?

00Red_SiR

you could try the DC website, but I've looked at their graphs and then done independant testing myself and couldn't replicate the gains they showed in their catalog. I use to own a large performance shop in my area and had constant access to a brand new dynojet chassis dyno that I even went to Las Vegas to get officially trained on (that's where Dynojet's head office is) so I was qualified. I would try numerous parts combinations on my own car to see what worked best so I could sell quality parts to my customers with confidence, knowing that they would perform the way they were supposed to. If you really want the DC 4-1 go ahead and get it but I found that with only a CAI and axle back exhaust the 4-1 didn't make one bit more power over the stock manifold except at the last 300rpm before rev limit. The 2 power curves (stock vs Dc 4-1) overlapped each other almost exactly till about 7900. This is why I said to you that with your combination a 4-2-1 would probably be better. In my case I knew I was going with cams and would be upgrading other things including a Hondata so I would be reving past 8200rpm, so I went with the 4-1. I also knew I would be using it at the dragstrip and some road tracks where my car would be in the VTEC range (6000+) the whole time. I am looking at the DC 4-1 JDM header with the larger collector because I feel my header and current CAI are holding my car back a little based on the latest dyno tuning graphs I have done.

chads

yea I do plan on mild cams some day but for now I believe I have decited to get the SS 4-2-1 header.

mainly because I hate the 2 second wait from 4k to 5500. maybe the 4-2-1 will help me in that area.

00Red_SiR

Yes, for sure it will, I think it's a good choice and am pretty sure you'll be happy with it even when you add cams. Good luck

fishnfst

For $750 I prefer the intake that attaches to a compressor housing and the header that attaches to a turbine housing....

chads

hey what about a JDM DC? I just noticed that they can be had for 100$ cheeper than a ss 4-2-1.

and will it bolt right up to my evo2?

dantastic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chads &raquo;</TD></TR><TR><TD CLASS="quote">hey what about a JDM DC? I just noticed that they can be had for 100$ cheeper than a ss 4-2-1.

and will it bolt right up to my evo2?</TD></TR></TABLE>

nope. you need a custom cat b/c the JDM style header has a 2.5" collector, while the oem cat is only 2.2".

I'd reccomend the JDM 4-&gt;1 (or DC replica) and an AEM CAI.

LSvtechatch97

i saw a guy with a CRX with a Greddy header to a full Greddy exhaust and he was running a fake J's racing intake and his car sounded BEEFy and i loved it. I would imagine Greddy headers are expensive and i don't see them often but it sounded hella good

00Red_SiR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chads &raquo;</TD></TR><TR><TD CLASS="quote">hey what about a JDM DC? I just noticed that they can be had for 100$ cheeper than a ss 4-2-1.

and will it bolt right up to my evo2?</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00Red_SiR &raquo;</TD></TR><TR><TD CLASS="quote">
The JDM DC header would be considered a step down with your particular setup as you'd lose power due to the fact that your engine wouldn't be able to take advantage of the larger header. If you want to put some cams in the car and plan on doing A LOT of high RPM driving, only then might it make sense to go larger. Ebay has lots of DC headers on it for a good price.</TD></TR></TABLE>