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Discussion Starter #1
Apparently I need a header with short primaries so my original plan of a Comptech 4-2-1 header is out. Besides a Kamikaze header like this one...



...what others are available that work well with superchargers? I only ask because I'm not familiar with Kamikaze's reputation.

Also, I assume that the ceramic Kamikaze headers are preferable over the chrome ones because I assume the chrome ones are designed with looks in mind first.

Thanks!
 

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You would want the unit with a 3" collector.

Kamikaze's rep for good fitment isn't that great. It'll take some playing to get a good fit. once you've got that, then you'll need a cat with 3" inlet and 2.5" outlet, and a an exhaust composed of 2.5" ID.

A system like this can be costly and I would consider it once you have the tuning parts in hand.

Hytech also makes a supercharger friendly system, but it is going to be about twice as expensive.
 

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Discussion Starter #3
Damn.

How much of a loss am I really gonna see with like DC Sports 4-1 headers (or GReddy or whatever) and a Comptech Exhaust? I mean is the cost really gonna be justifiable to have the absolute best I can get?

I mean, what if I just got an exhaust system with good fitment--would the hp loss be really bad?

Thanks again Gvtec!!
 

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I'm looking at this from a standpoint of you don't have these aftermarket parts to begin with. You are not going to send that much more, considering you want to buy these components. A Hytech exhaust, which I was told by John to be near stock DB levels, is a twin loop design in 2.5" ID form costs about $650. This is about $200 more than any other, but this isn't a 60" clog like the rest and isn't going to sounnd like a weedeater. Mate this with a $250 Kami 3" collector header and cat and you've got a nice setup under $1000. Like I said before, a muffler shop can resolve the weird fitment for next to nothing. I can link you to some used Kami headers, if you want to save a few more bucks and are looking for function over retail cost.

The big question is: "is it really worth it?"How thoroughly one can evacuate the cylinder, the quicker it can be filled will afresh mixture. The dyno doesn't fib; it makes more power. I was told by John @ Hytech that the average gain his SC customers gain with his systems at 8PSI is nearly 20 whp. That's going to be slightly over 250 whp on my setup, if I see gains like this. This is almost free power, considering the engine isn't going to be working any harder than it already is. What will I see on the dyno? I can't say just yet.

I don't know what your expetations are, but you might as well get the best components for you system to get the best output. If you ask me, I wouldn't chnage the stock stuff if I didn't plan on getting the components that will give me the best bang for the buck. Would you rather spend $1,100 on the Comptech stuff and have like-stock gains or spend another $100 or so and actually gain power?
 

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Discussion Starter #5
Gvtec on Aug/05/02 said:
Would you rather spend $1,100 on the Comptech stuff and have like-stock gains or spend another $100 or so and actually gain power?

Definately not. I only wanna get an header/exhaust combo if it'll actually do something. Since my Dad's a mechanic, I don't think, come to think of it, that fitment is really that much of an issue. If I can just find the parts, I'll be happy. But finding them has been my problem so far. Now I won't be getting this stuff for at least a year so that's not an immediate problem. But I keep a list of mods (and their prices) going and if I could just find one source with a decent price for these I'd be happy. Thus far I've got nothing.

OTOH, I can expand my search to stuff that's not just online. There a couple local tuner shops that might have access to them so I might call them tomorrow and just see if they've got them and what their prices are.

I know I'm acting kinda thick about all this stuff, but I was just basically wondering if some "big name," relatively inexpensive 4-1 header (Comptech doesn't even make them so I'm not thinking of them this time, don't worry) makes a few less hp less than this Kamikaze header--and likewise with the exhaust--why not just plan for that ATM and maybe look for those later?

BTW, just for future reference I asked Comptech (yeah, I know Comptech again) about their header (a 4-2-1 SC-no-no) and exhaust and they said this:

Quote: Info @ Comptech-USA We use a 2 1/4" diameter on our exhaust systems for the Integra. The header starts at 2 1/4" and then ends in a 2" collector. Thanks.
So the exhaust is a quarter inch too small and the header is entirely the wrong type. They're out and I won't bring them up again, don't worry.

Again, though, are Kamikaze headers the only headers that'll work? And what about cats? And is a Hytech exhaust (where can I find one, BTW?) the only non-obnoxious exhaust that'll work? I'm just trying to make sure I've got some options.

Thanks again.
 

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The big question is: "is it really worth it?"How thoroughly one can evacuate the cylinder, the quicker it can be filled will afresh mixture. The dyno doesn't fib; it makes more power. I was told by John @ Hytech that the average gain his SC customers gain with his systems at 8PSI is nearly 20 whp. That's going to be slightly over 250 whp on my setup, if I see gains like this. This is almost free power, considering the engine isn't going to be working any harder than it already is. What will I see on the dyno? I can't say just yet.

I don't know what your expetations are, but you might as well get the best components for you system to get the best output. If you ask me, I wouldn't chnage the stock stuff if I didn't plan on getting the components that will give me the best bang for the buck. Would you rather spend $1,100 on the Comptech stuff and have like-stock gains or spend another $100 or so and actually gain power?




Well said!.....right now from what I understand the JRSC package went up in price...look around for the best deal...if you do that you will be sacrificing some performance..(this is what i did) Can you live with that decision?...all I can tell you is that my JRSC setup @8lb puts out 229whp on the dyno...i'm not about to spend a little over $1000 to gain 20 hp...but this is my application and I only use my car as a daily driver..I'm not a track fiend or a dragger..It's all up to you if you have none of the parts...it might cost you an extra 300$ to get that 20hp..which is worth it to me...too bad I didn't have that info 8 months ago...
 

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pondering weather I should SC or not. Recently doing business with SMSP about getting a header. Also thinking about getting a sc. Now I would like to get the Kamikaze header with his cat back system. I see Hytech makes a header similar to kami. although i dont want to wait for it. SMSP doesnt have a header designed for sc applications. I am curious to know if anyone is currently running his 1 piece 4-2-1 GSR header with a SC? If so what kind of power did it give you? And i am aware longer primaries arent good for SC apps. Just curious how good it would work on a sc.
 

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I found this while researching a different topic, and remembered reading this thread earlier today.

The LHT performance header.





From the site:

"The LHT header is a 4-1 design , using stepped primarys and a True merge
collector. It is designed especailly for use with a supercharger to extract maxim
horsepower. This header has made more HP than every other header we have
test,It is stainless with a 64mm collector.
$995.00"

LHT Performance

They also offer a supercharger intercooler.
 

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The Kamikaze is BY FAR the best bang for the buck on a supercharged car. Honestly, I don't know why you'd even consider another with their price and their performance results....
 

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LHT Performance has a whole bunch of nice stuff for the JRSC as far as aftermarket performance mods go. I like that header too. There Intercooler for the Supercharger is very effiecient. But doesn't that JRSC cooler do the same thing for like 500 less?

I have the Kamakazie Header on my car and yes it's a pain to make it fit but for the money it's well worth it. I also used a 2.5" to 3" cat to a 3" Thermal SS exhaust.

GVTEC this is different than what you suggested almost reversed should I go back the other way. This way is opening and the way you mentioned is bottlenecking. Correct me if Im wrong.
 

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Catback Ken? 3" is not necessary then....no.
 

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Yes i agree the Kamakzie header is the best bang for supercharged integras. I also had problems putting it up into my stock cat but had the muffler shop fix this.
 
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