i've been playing around again with some headers just wanted to share some pics with you guys...






i got some dyno results too post it up later..


Modified by DTRFAB at 1:39 AM 9/16/2004


Modified by DTRFAB at 1:01 AM 9/18/2004


Modified by DTRFAB at 1:02 AM 9/18/2004

 

Looks awesome. Wonder what kind of numbers that makes over the stock setup. Megaphone looks nice also.

 

whoa.. that looks kinda cool. lets see the gains.

 

So is this basically a JDM ITR header that has been converted into a long-tube 4-2-1? If so, would it be cheaper than a complete custom long tube?

 

dyno results pleaseeeeeeeeeeeeee can't wait no longer

 

lol, you got yourself a hybrid there danny... looks pretty nice... does it have better clearence than the stock JDM 4-1?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StorminMatt &raquo;</TD></TR><TR><TD CLASS="quote">So is this basically a JDM ITR header that has been converted into a long-tube 4-2-1? If so, would it be cheaper than a complete custom long tube?</TD></TR></TABLE>

yeah its alot cheaper..


here is a run log compared to a stock JDM 4-1

test engine: OEM type R piston with a 89 stroke LS crank head work/stage 2 cams type R intake manifold and a velocity stack intake...



Im actually going to test a modified DC 4-1 header soon..i think it will work alot better then the ITR from the bigger primary tubing...
Modified by DTRFAB at 1:44 AM 9/16/2004


Modified by DTRFAB at 1:46 AM 9/16/2004

 

did you run the dyno with open header?

 

and this is how much?

and any comparisons to one of your full custom headers?

 

One of the best looking headers I've seen lately and good numbers on the dyno! (DTRFAB)Sent you an email, reply when ever you can!

 

very cool, what size merge collector, maintained 2.5" ?

thanks
greg

 

Nice

 

very nice work!

 

Looks nice. I have a couple quick questions though, will the stock lower heatshield/skidplate still be able to be used? Is this something you will be offering to customers or is it just for testing?

 

ground clearence?

 

wow i like that idea

 

how much would you sell that header for?

 

what can you do with a T1-R header?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rice4life &raquo;</TD></TR><TR><TD CLASS="quote">did you run the dyno with open header?</TD></TR></TABLE>

yeah both runs were ran with open header.. we tuned the 4-1 and all we did was add fuel pressure with the modified 4-2-1 JDM header..

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rice4life &raquo;</TD></TR><TR><TD CLASS="quote">Looks nice. I have a couple quick questions though, will the stock lower heatshield/skidplate still be able to be used? Is this something you will be offering to customers or is it just for testing?</TD></TR></TABLE>

The lower heat shield will not fit.. but the upper heat shield will fit fine.. ground clearence is the same to a stock JDM type R. This is something im looking into offering for my customers as an alternative to doing complete custom header the reason is i know there is alot of guys out there that are happy with making 210-220 and i know this type of set up will support it with no problem...


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rice4life &raquo;</TD></TR><TR><TD CLASS="quote">and this is how much?
and any comparisons to one of your full custom headers?
</TD></TR></TABLE>

I haven't been able to do that yet... For sure i know the limitation of this header is caped at 215-220hp.. if it was a modded DC-4-1 it know it could go a little further..Then the 2 step custom ones will always make more power because it taylored to the motor...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rice4life &raquo;</TD></TR><TR><TD CLASS="quote">how much would you sell that header for?</TD></TR></TABLE>

I actually have 2 of these one without a meg and this one... give me a call at the shop ill fill you in..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CHEETAH &raquo;</TD></TR><TR><TD CLASS="quote">very cool, what size merge collector, maintained 2.5" ?

thanks
greg</TD></TR></TABLE>

no the collector throat is only at 2 1/4 and the megaphone is welded right on that...for a street setup it would have a transition that will go to a 2 1/2 and have a 2 bolt flange.welded on...

 

That is sweet, a 8 hp gain, that is just awesome. Would you be willing to offer the setup to someone who already has a JDM 4-1 header, if you could supply the 2-1 section I could weld it onto my existing header. I would be interested in that. Great numbers by the way.

 

nice job and nice gains

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DTRFAB &raquo;</TD></TR><TR><TD CLASS="quote">For sure i know the limitation of this header is caped at 215-220hp.. if it was a modded DC-4-1 it know it could go a little further...</TD></TR></TABLE>

That's actually one of the first thoughts that popped into my mind when I saw this. Do you have any plans to construct something similar using a DC 4-1 instead of the JDM ITR piece?

Also, have you experimented with lengthening the secondaries at all, and would that be something a buyer could request? From what I recall, the headers you construct for extreme or large-displacement motors use shorter secondaries than the ones intended for more mild setups, and since this setup wouldn't be ideal for a hard-core build anyway, would longer secondaries be more beneficial?

 

good **** Danny, can't wait till i test/dyno my new re-done header..

DTRFAB

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by persianprelude &raquo;</TD></TR><TR><TD CLASS="quote">That is sweet, a 8 hp gain, that is just awesome. Would you be willing to offer the setup to someone who already has a JDM 4-1 header, if you could supply the 2-1 section I could weld it onto my existing header. I would be interested in that. Great numbers by the way. </TD></TR></TABLE>

well the problem is the individual not being able to execute the cut of the typeR header correctly.. .so this is something defiantely need to be sent in.. and done..