Oh, I'm not arguing at all, but if you read his original post, it says that he already has a JDM 4-1 header, I was jusyt responding to an earlier post that said get a Spoon or Mugen header, or something along those lines. I was just saying it's a waste to upgrade if you already have a header that flows resonably well, the JDM 4-1 in this case.

Any way,
Aj

 

Aw thats my bad I didn't see the JDM header part. I would say fuck a "high flow cat" and get a test pipe. Don't waste money on a exhaust. Do the intake and save the rest for some cams....

 

So the B-pipe should fit right into the JDM header? or do I need the Cat go between.

Another thing: I went to the performance shop just to check it out and I ask this guy about which cams will work good for my car and he told me that Toda will work good but I 'm going to need the valves-retainers(wherever). and another guy toll me that I don't need both cams that intake will do it. is the true?

"sorry if I have any errors)"

 

no, you need a cat of some sort, but as I said before, trust me and don't waste your money on a B-pipe, especially one that probably won't fit...

As far as spring and retainers, you will need them to properly run a set of toda cams, or at least in order to use the spec-b or spec-c cam. As far as just the intake, the intake by it self would not be sufficient using Toda cams, they are specifically made to work in conjunction with eachother. You can get away with using the Jun 2 intake cam, but you're really better off getting the set.

Later,
Aj

 

ok so if I go for the Cat, which brand and what size should fit in the jdm header the 2 1/4" or 2 1/2" because they have 2 differents size. and about the Cams, did you think that Toda will be the right choice but what stage?. Also, this guy just coll me because I supost to let him about Cams and he say that he will charge me $1800 for the cams, spring-retainers and also he say that it will be good idea to porter -polish the head (or something like that) for the price, including the labor. what did you think?

 

Well, if you have a JDM header, and it has a 2.5 inch collector, that's what you will need, but correct me if I'm wrong, you said you already had the header, and if this is the case, the header wouldn't have bolted up to the factory cat, you would have needed to have a new flange welded on. If you didn't do this, you don't have a real JDM header, which is bad, in the sense that it doesn't flow as well, but good in the sense that you can run a USDM 2.25 inch pipe size, which is much easier to find, and ussualy less expensive.

As far as $1800 for cams, springs, and retainers, you should immediately go to his shop, and back hand him across the face for thinking that you were such an ignorant moron as to pay so much money for cams, springs, and retainers, and explain to him, that you would rather not pay over retail for things.

Call around for these cams, try randdmotorsports.com and ipsracing.com they both sell them. As far as springs and retainers go, use skunk2, you'll save your self hundreds, and there is almost no difference in quality or workmanship, and definitly nothing in functionality.

And what he reffered to, is "porting" and "polishing", two seperate terms, porting is actually enlarging or matching the ports of the head, or changing the flow characteristics of the head, by changing the way that the head is contoured in the valve ports and combustion chanmbers. As far as polishing goes, it's exactly what it sounds like, ussualy done in a swirl fashion, basically just to smooth out the air flow. This can be a very expensive task, and should only be done by very few place in the country. And if you do plan to do this, you should have the same person install your valves, as they will more than likely do a three angle valve job as well, and by installing the valves, they will also do the springs and retainers. The few shops that I would say are capable and good and doing p&p's are as follows:

Endyn
JG edelbrock
Port Flo
Jun (who as I understand is no longer around in the US)
Signal Auto
King Motorsports

Now of course, I"m sure there are others, and keep in mind this is only my opinion, but those are the fgew world class Honda auto shops in the country, that actually us flow benches, and proven methods. On a side note, you should be prepared to spend close to, or in excess of a thousand dollars, just for the labor of the port and polish, which is pretty much all it is, is labor.

Later,
Aj