Header pic

[chooch]

sorry for the multiple posts... not very good at this...

http://mazdamp3.com/vbb225/showthread.php?s=&threadid=9094

 

[chooch]

And my dyno

 

[njaremka]

DUDE! kick ass!

 

[LinuxRacr]

Hey Chooch, long time no see. Did you get a chance to use the head from my old engine?

 

[chooch]

Hey LinuxRacr... haven't had time to finish it up, but I'm about 3/4 finished porting it. Thanks again, it was very useful for taking measurements and testing, I even made some adjustable cam gears out of the stock ones.

Gordon

 

[freekwonder]

I even made some adjustable cam gears out of the stock ones.

Gordon

ok, how did you do that, and how hard is it.

 

[melicha8]

Not too bigof an improvement. I guess our exhaust flow pretty well. Not worth it to me.

 

[Rider69]

I belive that Dyno is WHP, not the flywheel HP. So it is making all told about 30HP more than stock. I am curious as to what the headers and cat made HP wise by themselves. In other words, what was you dyno numbers like before you added the headers?

 

[spoolinmp3]

Wow that is purty nice, pretty impressive for N/A
How much did u spend in total?

 

[melicha8]

Oh my bad I thought those were before and after runs... I take that back nice job

 

[upsman]

If someone gets their car down there and they actually produce bolt on ones...I'm a definite buyer. ITs about time we had some headers made for our cars.

Jeremy

 

[chdesign]

Is this a 4-2-1 header or a 4-1? it would be interesting ot bolt my 4-1 up against it if his is a 4-2-1

 

[Kooldino]

Good job! Please list all of your mods on the day of thay dyno.

 

[njaremka]

Is this a 4-2-1 header or a 4-1? it would be interesting ot bolt my 4-1 up against it if his is a 4-2-1

that's the 4-2-1 for an mx-6 from racingmazda.com

 

[RZFD]

NICE!

can you post up pics of the stock manifold and cat, I wanna see why everybody is having such a hard time developing headers for this application.

 

[njaremka]

the stock manifold and pre-cat are both right in front of the engine bay, right behind the radiator. the reason it has been a chore to get headers made is that OBD-II requires two o2 sensors, and they are strattling the pre-cat. to make a full length header, you would need to remove the pre-cat, and rig something up to accomodate the o2 sensors and not fire a CEL.

 

[BryanPendleton]

And my dyno

Do you mind explaining the dyno some. . . It very misleading without any additional information, such as the year,make, model, mods, temperature, gear, humidity, etc.

 

[mp3moose]

Where did you get this header set up? I WANT! Does this elliminate the cat? I am very interested....how much was this in total? cheers
moose

 

[chooch]

quote:
--------------------------------------------------------------------------------
Originally posted by chooch
I even made some adjustable cam gears out of the stock ones.

Gordon
--------------------------------------------------------------------------------



ok, how did you do that, and how hard is it.

I'm fortunate enough to have a friend with a lathe in his garage... I'll snap some pics this weekend, gotta check my clearances again anyways.

I belive that Dyno is WHP, not the flywheel HP. So it is making all told about 30HP more than stock. I am curious as to what the headers and cat made HP wise by themselves. In other words, what was you dyno numbers like before you added the headers?

Unfortunately, for $80 to strap the car down each time, I'd rather spend the money on something else.

Wow that is purty nice, pretty impressive for N/A
How much did u spend in total?

Parts and all the misc. stuff like pipes, fittings, etc. approx. $1350. Excluding labor.

Good job! Please list all of your mods on the day of thay dyno.

Reground stock cams, headers, high flow cat, MP3 muffler, K&N cone filter.

Do you mind explaining the dyno some. . . It very misleading without any additional information, such as the year,make, model, mods, temperature, gear, humidity, etc.

'02 Protege 5, temp approx. 50 degrees F as per dyno sheet, first run done in 3rd gear, second run done in 4th, third run done in 3rd, all runs done back to back... maybe 30sec between runs, don't know humidity, cam gears at zero, dyno is in a tent outdoors and it was quite cool that evening which was probably good for a couple horse, stock wheels.

Where did you get this header set up? I WANT! Does this elliminate the cat? I am very interested....how much was this in total? cheers
moose

The header is a modified MX-6 unit from RacingMazda.com

Gordon

 

[APEXistud]

The header is a modified MX-6 unit from RacingMazda.com

Gordon

Quick question.....?How modified is that header?