Nameless Performance Equal Length Stepped Header - Page 132 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mid_life_crisis · 06-19-2013, 03:35 PM

It's now a year to the day since this thread was opened.

Quality takes time, but...

StormTrooper · 06-20-2013, 12:34 AM

It'll depend on how much power it makes over other headers....

Hawaiian · 06-20-2013, 10:39 AM

Quote:

Originally Posted by StormTrooper

It'll depend on how much power it makes over other headers....

Take into account it's also a 3' not a 2.5 like everything else, so it's not a true apples to apples comparison.

ill86 · 06-20-2013, 11:50 AM

Quote:

Originally Posted by Hawaiian

Take into account it's also a 3' not a 2.5 like everything else, so it's not a true apples to apples comparison.

What is 3" ?

FR-S Matt · 06-20-2013, 12:30 PM

Quote:

Originally Posted by ill86

What is 3" ?

The exhaust the header was tested on was a full 3" exhaust, not 2.5.

3" from the Overpipe to the Axleback.

StormTrooper · 06-20-2013, 09:35 PM

somehow i doubt you'll see much more power going from 2.5" to 3" exhaust....it's not a bottle neck on stock turbo subaru's much less naturally aspirated ones.

FR-S Matt · 06-20-2013, 10:15 PM

Quote:

Originally Posted by StormTrooper

somehow i doubt you'll see much more power going from 2.5" to 3" exhaust....it's not a bottle neck on stock turbo subaru's much less naturally aspirated ones.

There won't be a difference in power, but there will be a difference in volume for sure. I'm going 3" so I can just replace the header if I decide to go UEL for a bit before going turbo later down the road. That way I don't have to toss out my exhaust and if I end up going high horsepower on a turbo build, I've got the size for it.

Most probably won't like the volume, but I'll probably be able to handle it.

OrbitalEllipses · 06-21-2013, 12:39 AM

Quote:

Originally Posted by FR-S Matt

Most probably won't like the volume, but I'll probably be able to handle it.

FR-S Matt · 06-21-2013, 06:34 AM

Quote:

Originally Posted by OrbitalEllipses

Careful or I'll start adding stickers to my car! Then you'll know what's up.

mad_sb · 06-21-2013, 07:57 AM

Quote:

Originally Posted by FR-S Matt

The exhaust the header was tested on was a full 3" exhaust, not 2.5.

3" from the Overpipe to the Axleback.

They tested both and posted plots of both... LT3Y Header + Full 3" and LT3Y Header with 2.5 front / over + Stock mid pipe + nameless axle back. 2.5 lost out a little bit down low and midrange, but not much.

mad_sb · 06-21-2013, 08:03 AM

From testing 3" vs 2.5...

Quote:

Originally Posted by johnbradley

Video will be a little ways out. Final numbers with the smaller exhaust 188/153 and a best torque run of 186.7/157.2. I'll have the dyno sheets off to Nameless to sort through after I go grab some lunch....3 hours no food sucks. So as you would expect smaller exhaust made less power, but only really seems to have dropped below 4500 for the most part.

Quote:

Originally Posted by johnbradley

10-13 ft lbs down low, 4-5 thru some areas of the powerband. If I knew why after the first flash the torque is up in the dip but then reverts ( I assume electronic interference since its repeatable) after that on the very next pull I can lessen the dip. I am almost willing to pay for the explanation but I am not sure that it would be shared if its known.

Quote:

Originally Posted by johnbradley

If I get in trouble for this I am blaming all of you

Please keep in mind this is just the prelimn. I have mountains of data to go through and figure out why it is what it is.

SkAsphalt · 06-21-2013, 04:14 PM

Yeaaaah I am just moving around my pennies until I have over 1,000 saved up for the day this header with a cat finally gets announced

xjohnx · 06-21-2013, 04:46 PM

Quote:

Originally Posted by SkAsphalt

Yeaaaah I am just moving around my pennies until I have over 1,000 saved up for the day this header with a cat finally gets announced

dude, you're going to need more than 10 bucks.

SkAsphalt · 06-21-2013, 05:18 PM

Quote:

Originally Posted by xjohnx

dude, you're going to need more than 10 bucks.

lol

I meant save up my pennies until I have well over $1,000 saved up. Though I do appreciate your humor

06-19-2013, 03:35 PM	#1835
mid_life_crisis Senior Member Join Date: May 2013 Drives: FR-S 10 #103 AT Location: NC Posts: 1,519 Thanks: 101 Thanked 599 Times in 347 Posts Mentioned: 5 Post(s)	It's now a year to the day since this thread was opened. Quality takes time, but... __________________ Necessity may be the mother of Invention but Desperation is quite often the father. “Sex is like Bridge. If you don't have a good partner, you'd better have a good hand.” - Mae West Papa said, "son there's a lot of evil temptations out there. Best to try 'em all so you know which ones to avoid."

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