Okay so youre going with Clear Image, fine. Are you going with the 1 5/8" though?

In all your looking around did you notice that there isnt one site that recommends the 1.75" or larger headers for the 2.2/2.4?????

I am a proponent of metallic core catalysts too, Ive seen far too many nonmetallic cats set P0420s straight out of the box.

 

according to eric the owner of precisionautocanada only the vibrant give real hp

is anyone has a dyno to test it.....eric has a dynojet and had tested few hearder.
his conclusion was vibrant FTW

http://www.precisionautocanada.com/index.php
http://www.youtube.com/user/Garretts...21/TZPLHU5gysw

this guy has it on his 2.4
http://devilzx.monchar.com/

 

alot of people have it, doesn't mean it's the best choice for a bolt on 2.2. While it may give a higher peak hp # over stock, it still will not produce as well as a properly sized exhaust, in this case smaller. Though i'm not sure why I'm still trying to explain at this point.

 

Maven this kid is hopeless i already told him before like everyone else including you what to get and the proper size header he needs. I even suggested clearimage to save him a few dollars without losing quality. I guess hell have to find out the hard way that when it comes to exhaust parts that the biggest isn't always the best solution.

 

Yes, the choices are 1 5/8 or 1 3/4. Then it comes down to deciding between the 4-2-1 and the TRI-Y.

Yes I noticed that the Vibrant is quite big compared to the other header/dp combos out there, and I like how Clear Image used Metallic cats.

 

The vibrant realy give a gains HP

Stock with just K&N intake give 162Whp

With 4-2-1Vibrant combo with down pipe give 170whp

8whp of gains for a header it realy good !!



2.4 Tuned with HPtuner 7000Rpm cut off

 

ok you have now the dyno sheet of devilx
.its time to find a other dyno sheet with same mod but with a other header and downpipe.

since we have no number yet to compare. vibrant gives 8whp, its already good and it not just peak hp but all away up.

 

1) that's a 2.4, not a 2.2
2) when were those taken? Same day, same conditions?
3) he says stock and a k&n was 162, but then a header AND TUNE gave him 170. But, it looks like he was tuned prior to the second run because of where the hp drops off. So he's basically able to take more advantage of the header/dp because of the tune.

 

1)still n/a
2)suppose it was same condition
3)so a vibrant untuned wont give much hp that he did according to you

i thing that his first pull was tune but stock exhaust. where is the rev limiter on a 2.4? 6500 or 7000. because you can see his first run finish under 7000 but close.

 

the thing is, it's not unusual to see a +-5% difference on a dyno, especially if it's on a different day. And you can't compare a 2.2 to a 2.4 in terms of power gains. I'm not saying it's not a good header, I say all the time it's one of the highest quality pieces you can buy. That's not the debate. Fact of the matter is, it will be too big for a bolted 2.2

 

that ok, but like you say it one of the highest quality pieces you can buy. he wont probably not change it after 3 year because it all rust.

 

none of the reputable companies parts will rust after 3 years.

 

stainless are more durable than my actual setup ''alumized steel''

my ion is rusted because using saline solution on your road.

 

but pretty kuch all the decent and above exhausts are made of T304... so, rust is kind of a moot argument here

 

ceramic coated exhausts also easily last 3yrs. Every major header for the Balt is available in either stainless or coated.

 

What about coated stainless? :-P

 

Which works better for these motors, the 4-2-1 or the TRI-Y?

I understand the difference, but it seems like there is no clear answer.

 

421 and TriY are essentially the same, just marketing differences really. A simple bolt on motor is best served by a 421/TriY design as opposed to a more traditional single merge.

 

From what I understand.. In the Tri-Y design the primaries are very sensitive to "tuned length"
and the 4-2-1 design is opposite, very sensitive to collector more than primary length.

To make the most power, it makes sense to me, that, wouldn't you want to focus on the length of the primaries?

 

I wish you would provide me with deifferent examples of what you consider each header to be. I don see how there is a difference, particulary in regards to the minimal space and very limited selection of Cobalt headers.


Without getting into ths for the seventeenth time (its out there, search here or ecotecforum) You dont way a single merge header on a relatively mild small displacement engine because they are very sensitive to exhaust gas velocity and the effects of reversion on the flow.

You can have 35" long primaries but if its a single merge collector its still going to lose some efficiency(and therefore power) to a properly designed shorter primary multi merge header.

 

TRI-Y


4-2-1


^^Both from CIA.

And on such motor, the 1 5/8" primaries are more suitable over the 1 3/4" primaries? Correct?

 

same thing to me

for 1/8'' who care. buy the one you want. in my case vibrant should the top of the top

 

I have the SS header and before I put it on over the summer I filled out the collector and on the insides of the primaries from the collector side, would it be bad to take it off and file it down more on inside of the primaries from the side that bolts to the engine block? It should be okay as long as I dont file the edges where it bolts up and seals correct?

 

You are correct, that is just a simple polish and personally I reccomend it. I mean it isnt going to add more than 1/4hp but it will be better for velocity. If you are pressed for time it isnt nessisary but if you have the time to do it why not?

 

Are you saying that 1/8' makes no difference on the primaries? If so, you should keep out of this conversation.