I'm looking into a RMF Narrow Copy header for a couple of reasons. I've currently got a brand spankin' new Rage Big Tube Tri-Y, and am wondering which would be better for a JRSC Setup.

The RMF 4-1 destroyed the Big Tube Tri-Y on my Big NA Build everywhere but the top. I'm wondering whether I should run that same header w/ the S/C setup I have (13 lb boost on an LHT intercooled Endyn ported blower) or if the Tri-Y would be better suited.

What do you guys think?

Roger? Veris?

 

You comparing a N/A build to a boost build, at 13psi I would believe the big tube would be an advantage. but If I were you and had access to both header's again, dyno?

 

Yeah...that's why I was asking the question. The headers were tested on an engine dyno w/ that NA build (and the RMF Copy was a prototype...so, I actually don't have both). I am buying the RMF copy for my NA engine...I'd be stupid not to. For a street application, it DESTROYS the Big Tube...and did it in a back to back test! I'll be the first to say that I was really surprised....but back to back tests on a non-biased dyno (i.e. he had no agenda in the test) don't lie!

The only way I can test the 2 headers on the SC setup is a chassis dyno, which I don't have access to ATM.

However, I am in the process of putting new Head-back exhaust system on my SC Teggy. The girl needs a 3" exhaust...and a nicer header. I have access to the both of them for practically the same price. So...trying to decide which one to pick.

I was leaning toward the BT....b/c it just seems like it'd be better suited. But wtf do I know?

 

Can you post some pics of those headers?

I used to have my R Teg S/C'd w/ a kamikaze header and even though I didn't dyno the Kami back to back w/ the DC JDM 4-1 header, but I could feel a significant difference in power all through the band.

I said I'd never do a SC again but after adding up all the $$ for a mild turbo build I was like my God! Is all that really worth doing when I'm not trying to create a dyno queen?

 

RMF Copy


Tri-Y Big Tube



I KNOW The person that did the header test....and he has NO vested interest in this header. Not to mention, his reputation on HT is without question to those who have a clue as to what they're talking about. That's why I don't question the results.

But....as I know....comparing that NA test to a SC application is comparing apples to oranges. Which is why I ask which of these would be a better fit for my SC application.

 

Thanks for the pics man. Just keep us posted of the end result.

 

you talkin about vtekkid or whatever, the same guy that was selling them... yeah... about that....

 

VTECKidd is selling them.....but the results of the test to which I was referring wasn't done by him. It was done by an unbiased party, an engine builder I know personally.

But anyway....this thread is getting WAAY off topic. I'm trying to decide between these 2 headers on a SC application. You guys know as well as I do that SC vs. NA are 2 different animals when it comes to what will perform better where.

 

Are both of those headers A/C friendly?

 

both will work ok..

we had an RMF on an old setup of rmcdanels, it made decent power. Randy said it would work good up to about 270-280hp. we havent ever test a BT tri-y though..

 

I'd really like to see a back to back dyno chart of different headers on a SC'd set up. DC JDM, Kami, Hytech, Rage, RMF, etc.

 

A roots blower will never be very efficient on top, even with all sorts of porting & intercooling. With that in mind, I'd go with something that compliments it's strengths, rather than suppliments it's weakness. NA is usually about top-end power, while a blower setup [almost] always about area under the curve.

Get the big-tube header unless there's more low-mid power than your tires can use.

 

Ive never tested an RMF on a SC setup so..........

but i do know its always made way more torque than any other header i have ever tested on an NA engine, i would assume it would be the same on a boosted setup.

Lucky for you a buddy of mine has a SC ITR locally, we are setting something up for a test right now.

 

Not implying you didn't see it but, check the 4th post in this thread where I made mention of the Kamikaze header made more power than my DC with the 2.5" collector. I'm only going on info I've read that the SC'd B series tends to make more/better power with the Kami header. I had my ITR SC'd but never had the $$ to do a header test on my R even with the butt dyno.

 

Option 3: DIY, $85.00 for a 3" merge collector -w- short 2" primaries into a 3" exhaust, and some flange that I cut off of a cheap ebay header, plus a few $ to the welder, then DIY thermal coating, like a Kamikaze done right:










Or, if you want to be realy sexy, do it sideways with v-bands:

 

LOL! Sorry man I wasn't in any way making fun of your post but the first comment about the Kami couldn't be more true. I've seen them made in some weird ways.

I hear sexy headers make more bling power.

Seriously I liked the pics though. Thanks for the visual example.

 

If you want a Kami done right! Sexy bling! I'm still thinking about replacing my Kami with this RMF copy, it looks promising but I don't want to be a guinea pig on this.

Maybe after Christmas...

 

tell you what, buy one from me, dyno it , if it makes power, ill give you $100 rebate for your dyno time, if it loses power ill buy it back off you.

hard to turn that down

 

Where were you a couple of years ago?!!! Almost wish I still had my ITR SC'd for a deal like that! There is someone I've always wanted to prove wrong that the Kami is good but not the ultimate header for a blown B series.

 

what about the kamikaze header for a 2001 prelude N/A, the prelude is all stock at the moment, have a aem v2 intake / buddy club pro spec exhaust waiting to be installed. i'm trying to decide what to go with, i've looked into smsp and hytech, then looked into the replicas. one replica i came across lookes promising but, after reading forum posts, i'm hearing it sits low, you have to cut the crossmember and sounds like more problems will occur. also street legality is a issue too, since i live in texas and have to pass inspections since its my daily driver for now.

not to jack a thread, just looking for some help.