Thanks. If those wraps can reduce rasp then I'm all for that. Your build is awesome and I'll probably mimic you in a lot of ways.

You ever consider the cosworth intake plenum? I bet your build can benefit from it now. It would suck on an otherwise non-built NA DE.


03threefiftyz, I saw the headers but I was curious to see how the rest of the exhaust looked.

 

I don't think with the 264's, lack of headwork, and relatively low rev limit he would see worthwhile (in contrast to cost) gains from the cosworth......there is a general lack of info surrounding it though.

Ok, just pointing out that there was a pic of the headers wrapped as well...

 

Highly doubtful that I will go with the cosworth at this time. I really don't think it's because of the heads not being worked on , but being NA there really hasn't been any compelling results showing that any headworks is beneficial. Even once I up my rev and do some VVT tuning, i really don't think the coworth will be helpful.

However Adam from Z1 is doing something new with the cosworth on his car and if that turns out positive, it might peak my interest, but his car is a lot more modified then mine and his plan with the intake is a full custom job. Who knows though, i really didn't think i would do any engine work at the beginning of this year and now i'm in neck deep already.

 

Agreed, but I think it is going to be difficult to translate his results to a lesser car. His car is thoroughly worked over with tons of attention spent to the heads and such. It will be very interesting to see the results though. Adam has been raving about the flow of the cosworth.

 

Hey Gabe3d, so the your intake cam is the same as exhaust cam? Did you got them from Z1?

 

Yeah, the duration are identical on the intake and exhaust, but they are not the same part. No I didn't get them from Z1 but they do carry it and their pricing is pretty good on them.

 

On that same dyno I'm doing 250whp, 236wtq with my '03 Z. Similar mods, but I don't have cams, testpipes/hfc's or headers though. Just for comparison's sake. It looks like you picked up a good 20whp/tq with those 3 mods.

 

how does the Tomei test pipe sound? I have been reading about various test pipes for the Z and seems like most of them make the car really loud.

 

Any test-pipe is going to sound roughly the same......it is just a strait piece of pipe.

 

I have no clue since I don't have them, but I would guess a little louder then mine since i have resonated ones. I really doubt that there are any "quiet" test pipes on the market, since it's just a straight pipe. The only variations that you will find are wall thickness but that won't make a huge difference in terms of noise.

You have really good numbers for only those mods, but to be exact i picked up 26hp/16tq now comes the question of whether it's worth it or not. for that extra power it cost me 3k...

 

03threefiftyz or gabe3d,

I'm curious. Is there any point running a 3" intake with stock exhaust, headers, etc? I want to buy the samco tube, and apexi filer but I'm not running an aftermarket exhaust.

 

I doubt you would pick up any noticeable power, but why not upgrade the flow on the other end?

*edited.

 

exactly.

 

I say either swith to TP or HFC first. The stock cats are very restrictive so that will free up a lot of the choking. If you have TPs or HFC already but have the stock exhaust then I'm not 100% sure if the 3" MAF would help.

 

3" maf should only really be on the table when you have maxed out the "conventional" bolt-ons.

 

If you were to buy the 3" MAF, would it matter if the intake tube was slightly smaller than 3"?

The reason i ask is because i have the Mishimoto Carbon Fibre intake which has a CF intake tube and was not really wanting to change it.

 

It would be better if it was all the same size.

Having said that, I have a stock Pop Charger in front of my 3 inch MAF tube. I'm planning to have a friend chuck it up in his lathe and open the end up to the size of the 3 inch MAF tube. It's a little bigger than 3 inches as I remember.


-jb

 

+1, when I get some free time I am going to take off the 4mm of excess on the stock jwt velocity stack. z1maf is 80mm at the inlet.

 

I previously answered this question and said that I won't but I just made that statement become a lie this morning.... after thinking about it for a few days and talking to adam.... god have mercy on me and help me stop buying.

 

Here is a vid i just took today after work. Not the best but a lot better then the one prior to this one.