I am new to this whole header thing. I was looking into the Spoon 4-2-1 (opinions needed!). Will I just need the 2.5" carsound cat to make everything fit? Also, will everything bolt up properly and can I still keep my stock exhaust? Thanks for the help guys.

 

dont get the spoon header.

jdm mugen 4-1 header or SMSP.

I havent seen the jdm dc sports header so I cant comment on that but for the
price it seems decent.

 

You can run a 2.5" testpipe or cat that tapers down to your stock exhaust size. I do not recomend it, but that is something that can be done.


Jason

 

I don't know about the ITR but I helped install one on a friends GS-R and we had to trim the plastic radiator shroud for it to fit.

 

Did not have to do that on my ITR. I did have to unbolt the upper radiator mounts so that I could push the assembly slightly forward to get the header up to the head. Once the header was in, the fan and radiator assembly did not have any clearance problems...


Jason

 

I was able to install the DC JDM without unbolting anytyhing, it's just challenging to manuever it past the bleed screw on the slave cylinder. have to turn the header about the car's front/rear axis.

 

LOL Sackdz! Sweet avatar!

 

Care to elaborate on why you're not sold on the Spoon header? Any personal experience?

 

picture this at the head:

(O)

The 'O' is the pipe and the '()' is the port. You can see why it wouldnt flow
that well.

 

Thanks Dan

 

1st

I have a Spoon 4-2-1 header mated to a Carsound 94006 HF cat. I had it installed at a very reputible race shop. The header comes with the proper gasket for the block and the round donut gasket for the cat connection. The cat came with it's own gaskets. The shop owner installed it himself, he did cut the plastic shroud under the radiator near the header for clearance and safety. He installed a aluminum pipe protector as a thermal barrier for the AC line, and supplied the proper bolts and fittings for the install. Total install cost $100.

2nd

I am very satisfied with it's performance, fit and finish. I won't drag this out and I don't want a flame war over which of our dicks is bigger. It works well and I am happy.

There are many other good headers available for the R, GSR, and so on. Some other notable ones are the SMSP, Hytech, JDM/OEM/ITR, Mugen, JUN, and Toda. Prices vary performance is similar but the results of the GREAT HEADER TEST will certainly give you a good volume of information to base your decision upon. If I were you I'd wait till the results are posted and analyzed.

3rd

I purchased my Spoon header from Mike "TypeRmsm" at IPS Racing: http://www.ipsracing.com I got it for I believe somewhere around $900. and the HF cat was about $100. I have had very good experiences with Mike, his customer service is one of the best around. He also happens to be quite knowledgeable. He'll tell you how stuff is and not just try to sell you expensive goods. So I vote for Mike as a place to buy from.

4th

Check around! How did you come to decide on the Spoon header? Is that really the one you want or is your decision just based on hearsay? If I were you I'd at least wait till the GREAT HEADER TEST results are posted Before you go out and spend about a Grand. I wish the test was there when I made my decision. Also a header choice should be based upon its performance characteristics, design and how that fits into your plan. What do you plan on doing with your R? Daily only? Track Racing? Course Racing? Auto-X? ??? There are different designs to benefit different performance goals.

5th

Good Luck,

Search and educate yorself to make a wise decision. Ask me what you like. If I helped, your welcome, if I can still help, just ask.

Anton

PS I understand SGT's opinion and to some extent agree. Why spend almost a Grand on something that may or may not have as few as 2-3 HP gains as a less expensive item. What are we talking about really? A Name, and some Hooplah, albiet it does work well and there are gains, but therea also ARE Alternatives. Spoon has become a name synonomous with the JDM craze of fashion, despite their philosophy of function and balance.

 

I guess it all depends on how far someone wants to take their all motor setup. I have heard nothing but good things about the Spoon 421 header but it seems to come from people that have just basic bolt-ons and mild cams.

 

Well, which Toda header is best and how much?

 

Are you saying that you recommend to have it 2.5" Cat-Back also and just have 2.5" all the way?

 

Yes

 

Thats the general idea.

You also have to take into consideration if you install a 2.5" catback, IF your engine will be able to maintain the proper exhaust velocity to truely benefit from the full 2.5" setup.

A.

PS I'm still haven't decided on one, my Choices are: Hytech, SMSP and Kakimoto R.

 

Well, if you are satisfied with that, my suggestion would be to get the Honda 4-1
instead since the outlet diameters will be the same.

 

So a 2.5 inch collecotor header and 2.5 inch cat and exhaust would be too much flow for a Type R with only an AEM? What do you suggest otherwise? I was thinking about just the DC Race header and high flow cat with stock exhaust.

 

I have the Spoon 421 (1 pce) header ever since they came out. I am very happy with its performance over Mugen.

You can run a carsound cat with it but for my opinion I will suggest you to run a 2.25 test pipe cuz this setup up is more then enough if you run N.A. Tuning.

 

D-shaped port anyone?








[Modified by Michael Delaney, 12:47 AM 12/13/2001]

 

And how was any of that relevant???

 

afaik, there is only one toda header available for the b16/18... www.todaracing.com

Oh yeah Tuan, that top header is hytech! Looks like Jeff's drag header...

What is that other header?


[Modified by Black R, 2:28 PM 12/13/2001]

 

relevance?: D-shaped ports at the header primaries are thought to be better than either () or O ports at the exhaust port exit for flow velocity.

This is not only true in imports but also in domestics. D-shaped ports have been around for a long time and are still used.

I posted the Hy-Tech race header with D-Shaped ports and the Micron header (used in 1000 cc 4 stroke motorcycles) which are different applications using the same idea.

The new LS6 Corvette C5ZR engine in the Speedvision GT Series uses D-Shaped exhaust ports.

I guess it's not all that relevant to the Spoon header but it does explain why more cross sectional surface area in the Spoon port ...O...as you put it....reduces extraction flow velocity in a header.

 

Mike,

I was trying to figure out some of the different opinions that you and SGT have with relation the the E ports.

As I understand it , after seeing and feeling the exhaust ports on my Spoon header that, it is designed to promote higher exhaust velocity similar to tha way their Venturi plate works on the intake side.

Please correct me if I'm wrong.

If what you both are saying is opinion or preference than so be it but be clear and label it so. I need to learn more about what works best.

But, This all being said then, why does my Spoon header perform better IMO? Is it the E Ports, Longer Primaries, Tri Y design , Antireversion Chambers, larger diameter collector? One or more than one of these or a good combination of a bunch, Or All of the above?

I am certainly NOT saying that Spoon is the end-all Header for the b16/b18, I am just curious and want to understand all this header Tech better.

Thank you and SGT,

A.

 

Yet again, you have managed to completely miss my point.