These dyno pulls were done on an engine dyno by DonF at DFE Enterprises in Jacksonville, FL. I just got these emailed to me the afternoon of 6/3.

The engine is a CRV block with 84.5mm JE pistons, Ported Head, Custom Cams, Jenvey ITBs.

The following are the actual values for each header tested. The HyTech production version was also tested but I wasn't sent those plots.

RMF 4-1 Narrow

239.5 bhp average from 6000-8700
171.3 lb-ft average from 6000-8700

Peak 270.9bhp

SMS 4-1 Prototype Stainless Steel

241 bhp average from 6000-8700
172 lb-ft average from 6000-8700

Peak 275.5bhp@8700

SMS 4-2-1 Multi Piece Mild Steel Ceramic Coated

244 bhp average from 6000-8700
174 lb-ft average from 6000-8700

Peak 277.6bhp@8500, 8600 & 8700

For the graphs, the torque scale is on the left (140, 160, 180, 200, 220) and the bhp on the right (120, 160, 200, 240, 280).


The following is the SMS Custom 4-2-1 multi piece mild steel ceramic coated header (top curve) with a 2-1/2" collector (This was built for a Honda Challenge H1 engine, OEM bottom end) versus the RMF Narrow 4-1 mild steel ceramic coated with a 2-1/2" collector.



The following is the SMS Custom 4-2-1 multi piece mild steel ceramic coated header (top curve) with a 2-1/2" collector versus the SMS 4-1 prototype stainless steel header with a 2-1/2" collector.



The following is the SMS 4-1 prototype stainless steel header (top curve) with a 2-1/2" collector versus the RMF Narrow 4-1 mild steel ceramic coated with a 2-1/2" collector.

 

I stand behind SMS stuff hands down for making power. Its a shame our side exit isn't going to work on the Insight....I would love to be able to have an SMS on there.

I wouldn't trade the SMS on my street car for anything Good customer service too.


Modified by 4piston at 9:23 AM 6/4/2005

 

We are having an B20 Header shootout coming up.With the following headers-
The new Hy-Tech 4-2-1
AN-R or Prospeed 4-1
DC 4-2-1
RMF stepped drag style.
RMF non stepped straight 17/8
RMF NEW big tube with automatic variable size collector Iris.
RMF Drag zoomies
SMSP any street 4-2-1 I can find.
We will be contacting the manufactures the night before testing.
I will be posting the results ON EVERY FORUM POSSIBLE untill people are tired of seeing it .

This is a JOKE If they would have used my step header and not my B16 header
The results would be the other way around.





Modified by RMF at 2:35 AM 2/8/2006

 

header war

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">header war</TD></TR></TABLE>

Indeed...

But Randy and Dave both make awesome headers at affordable prices... so it's all a matter of preference

 

There were a couple members who ask to see dyno plots in this threadhttps://honda-tech.com/zerothread?id=1256186&page=2, so I just started a new thread. I can just post these over in that thread and have this deleted.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jessevtec &raquo;</TD></TR><TR><TD CLASS="quote">header war</TD></TR></TABLE>
And we (the Honda-Tech consumers) win

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RMF &raquo;</TD></TR><TR><TD CLASS="quote">
I will be posting the results ON EVERY FORUM POSSIBLE untill people are tired of seeing it .
</TD></TR></TABLE>

 

randy where are you going to have this shootout at.


Shawn

 

Thats a pretty big difference in the two headers, thumbs up for SMSP

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SMSP &raquo;</TD></TR><TR><TD CLASS="quote">
The following is the SMS Custom 4-2-1 multi piece mild steel ceramic coated header (top curve) with a 2-1/2" collector (This was built for a Honda Challenge H1 engine, OEM bottom end) versus the RMF Narrow 4-1 mild steel ceramic coated with a 2-1/2" collector.



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

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SMSP &raquo;</TD></TR><TR><TD CLASS="quote">These dyno pulls were done on an engine dyno by DonF at DFE Enterprises in Jacksonville, FL. I just got these emailed to me the afternoon of 6/3.

The engine is a CRV block with 84.5mm JE pistons, Ported Head, Custom Cams, Jenvey ITBs.

The following are the actual values for each header tested. The HyTech production version was also tested but I wasn't sent those plots.

RMF 4-1 Narrow

239.5 bhp average from 6000-8700
171.3 lb-ft average from 6000-8700

Peak 270.9bhp

SMS 4-1 Prototype Stainless Steel

241 bhp average from 6000-8700
172 lb-ft average from 6000-8700

Peak 275.5bhp@8700

SMS 4-2-1 Multi Piece Mild Steel Ceramic Coated

244 bhp average from 6000-8700
174 lb-ft average from 6000-8700

Peak 277.6bhp@8500, 8600 & 8700

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

Wow. So the SMS 4-2-1 Header made more power overall, and in the top end over the 4-1.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RMF &raquo;</TD></TR><TR><TD CLASS="quote">We are having an B20 Header shootout coming up.With the following headers-
The new Hy-Tech 4-2-1
AN-R or Prospeed 4-1
DC 4-2-1
RMF stepped drag style.
RMF non stepped straight 17/8
RMF NEW big tube with automatic variable size collector Irus.
RMF Drag zoomies
SMSP any street 4-2-1 I can find.
We will be contacting the manufactures the night before testing.
I will be posting the results ON EVERY FORUM POSSIBLE untill people are tired of seeing it .



</TD></TR></TABLE> sarcasm works with smart people

 

Ok so when is this SRZ test 2 going to take place???
They said in a week or two...right??
Not that I mind seeing you guys trying to beat the other!

 

wow impressive stuff

 

Cool..i love header shoot outs! RMF and SMSP get a from me aswell as all the other reputable header makes such as DTR, AN-R, and HyTech.

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 5thgenallmotor &raquo;</TD></TR><TR><TD CLASS="quote">Ok so when is this SRZ test 2 going to take place???
They said in a week or two...right??
Not that I mind seeing you guys trying to beat the other! </TD></TR></TABLE>

once we get caught up. we have several ongoing projects, and the guy that owns our pretty ITR that we tested , we have to send the head out to DFE to get a valve job done on it.

im hoping by mid july we will be ready. right now the tentative date is 2nd week in july

AND LOLOLOLOLOLOLOL at RMF

 

any pics of the SMS headers?

 

poor thing the rmf didn't do that well for the cost, compared to the sms

 

NOT TRUE. in this ONE test the RMF didnt do as well as ONE of the SMS headers that were tested. things to consider.

SMSP headers that were tested:
Daves Personal H1 Challenge 4-2-1 =$900 this one DOES NOT meet our criteria for OUR header test we did.

SMSP PRODUCTION 4-1 header=$699 last i heard maybe a little cheaper.


RMF Header that was tested:
4-1 Narrow Header=$675

Hytech 4-2-1 PRODUCTION HEADER=$799

KEEP IN MIND PEOPLE THAT RMF ALSO HAS A "RACE HEADER" that was NOT tested. this header would be good to see against SMSP's "upper header" aka the 4-2-1 long tube.

IMO you cant compare the 2 headers, 2 different headers in 2 different price ranges. (the RMF Narrow and the Long Tube 4-2-1). The SMSP 4-1 and the RMF 4-1 were still very close, just liek they were in our test.

These tests are TESTS, no more than that. While its good to see different dynos on different engines, keep in mind there IS NO CONSTANT when it comes to a WINNER. something as important as "order" in the test can affect results.

Both companies have resumes that are very long, and both guys know what they are doing. you cant go wrong either way.

*free plug* header test PT2 is coming soon. we'll see who wins our "header wars"

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RMF &raquo;</TD></TR><TR><TD CLASS="quote">We are having an B20 Header shootout coming up.With the following headers-
The new Hy-Tech 4-2-1
AN-R or Prospeed 4-1
DC 4-2-1
RMF stepped drag style.
RMF non stepped straight 17/8
RMF NEW big tube with automatic variable size collector Irus.
RMF Drag zoomies
SMSP any street 4-2-1 I can find.
We will be contacting the manufactures the night before testing.
I will be posting the results ON EVERY FORUM POSSIBLE untill people are tired of seeing it .

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

I wanna try the RMF race header **** it, might as well start with that with my setup or at least the compact.

I just want the most tq with my 2.0L. And the best way IMO is to make the comparisons on my motor, whether street or dyno tuning. I can't take dyno comparisons with other setups too much to heart.

Besides, i don't think most ppl will get tired of dyno charts, just googlie-eyed.

 

Send me the headers I have a 86mm IB Super Dupers in a ITR w/ TWM's, and stage 3 cams ready to go right now on our 224X dynojet for some header test!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by menkio &raquo;</TD></TR><TR><TD CLASS="quote">poor thing the rmf didn't do that well for the cost, compared to the sms</TD></TR></TABLE>

Perhaps, if you don't know what you are talking about.

 

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

Perhaps, if you don't know what you are talking about.</TD></TR></TABLE>

So if you DO know what you are talking about, you can look at the RMF numbers being lower all the way across the board and somehow talk yourself into believing that it makes more power?

I think you need to elaborate on what you really meant for the people that don't understand 3rd party testing and how the different headers might perform under different conditions.

It wasn't like the numbers were even close anyway....and I suppose that is still a 3rd party test since DonF ran the dyno.

Never seen an RMF header but I have heard they are pretty damn nice I have owned many SMS headers and I wouldn't spend my hard earned cash on anything else