well i found this web-racing site, they actually did some dynos of headers on ITR take a look

http://www.daliracing.com/v666...t.cfm

what do you say, any suggestion of comment?

 

nice find

 

Kool

Funny how the JUN, MUGEN, and SPOON header made basically the same numbers as the DC 4-1, especially when everyone says "**** DC blah blah blah"

 

That helps alot, to bad i dont want to spend so much money on a toda header! good find

 

I wonder if when they say "stock" they mean truly "stock" without I & E ? If so, then thats pretty awesome that they picked up 14 hp from just adding a header....is that typical for adding a header to an ITR?
How much does a GSR typically pick up from just adding a header?
Import Tuner (Feb '05) put a DC header on a Civic Si and the net gain was almost zilch.

 

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

Funny how the JUN, MUGEN, and SPOON header made basically the same numbers as the DC 4-1, especially when everyone says "**** DC blah blah blah"
</TD></TR></TABLE>

You gotta look at the area under the curve. Peak numbers don't tell you the whole story obviously.

JDM DC 4-1 is also straight up bang for the buck at the cost of poor ground clearance.

This test was also performed with a comptech icebox, sms 2.5 test pipe and 2.5 sms catback.

 

bump...ttt for people...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">
You gotta look at the area under the curve. Peak numbers don't tell you the whole story obviously.

JDM DC 4-1 is also straight up bang for the buck at the cost of poor ground clearance.
</TD></TR></TABLE>

true, constanstly gaining area of hp under the curve from low end to top end is GOOD, but depend on application

im not correcting you or anything, area under the curve? you were using intergal of calculus to determine the area hp under the curve of a car which was aint a bad idea. One you thing you must state when you say "You gotta look at the area under the curve. Peak numbers don't tell you the whole story obviously. " are you going turbo or supercharger or N/A or even for track.

for N/A you can't get around by saying that, because as you know. let say if you gain 15hp in N/A motor in the top end rpm, this type of gain is usually compensate by the lost of low end hp and tq. If you gain low end then most likely u wont gain top end or sometime you will lose top end out.

If you dragging, then the "area of hp under the curve is not as important as absolute peak power"
If you are the track-car person, then yes "area of hp under the curve is good"

good debate, i see lot people were talking about area under the curve lately, but didn't explain anything. welcome to add or debate guys

 

How interesting... doesn't look to bad