I can only speak for up to 6500 rpm

whatever your doing works for you, so keep doing it

or do what I did; go to a dyno and try out a few different fueling tables and see what the fuss is all bout.

 

eh, my build is too complicated this time around. I'm letting zzp handle the headache of tuning it.

 

I wish I could just do that at times...

I'm really curious why ZZP hasn't stepped in here and asked any questions about it, or talked about their m90 testing.

 

I got too much money in mine now to just risk it. All the headwork, cams, holset, still using the m62 as well. Yea, I'll let zzp deal with it. I'll put it together, I just would rather have someone more knowledgable than me teach me how to tune it. Just too much all at once for me.

 

you have the worlds shittiest header on that car and you refuse to remove it. you are running wayyyyyyyy too much meth to compensate for it as well. you knock on 20 degree's with a 7gph nozzle, or a 5 for that matter shows you have an issue. running a 19gph nozzle is way, way, way too big. i wouldn't even run that on a 800whp turbo lsx engine.

i have been in this game to long to see an issue, a repeating issue actually. if you disregard the point i am trying to make, you will never make power. i have hammered this enough times in the past.

 

should have kept the m62 and built the motor. would have made more power

 

stock motor is adequate

 

Like others post, I'll take it into consideration.
All I can say is wait. There's more than one way to skin a cat.
Everyone is so quick to trash this header all because one individual some how lost 50whp compared to a stock exhaust manifold.

 

That would cost quite A bit more than I paid for the mp90. There's much more left in this mr

 

im in agreement with area steve. ditch the header
(shoulda bought mine when it was for sale..lol)

 

going to throw the shorty (1 3/4 to 3") & 3" on for the next dyno, no worries

 

^yay, exciting!

 

i like to keep things exciting

 

its not 1 person.. it's fluid dynamics and physics.. that header doesn't agree with them

 

SHHHHHH......we're skinning cats here, not using logic.

 

wow all these ******* experts

 

Lmao!!

 

**crickets**

 

makes me want to put the TVS back on

 

^do it....................you won't do it....................

 

Why don't you?

 

I know right...?

 

newp no sense in logic here

I'm using a MP90... wheres the logic in that...? It was only supposed to make 255-260whp

 

If I lived close to you I would lend you my header!

 

Thats really nice, but thanks anyway. Euthanasia has a ceramic coated 1 3/4 3" collector shorty header that he's letting me use. He's only a 30 minute drive away..