Header Porn

['76mintgrün'02]

6 minutes ago, markmac said:

I remember years ago, Jere Stahl commented on BMW M10 headers

 

jgerock shared that article back in 2013.  Here it is, followed by a link to where he posted it.

 

 

 

 

 

 

 

[2002Scoob]

Two words-

 

Sex Appeal. And thing is dripping in it. 

 

I'd sacrifice a few HP for that. What I don't have is 1700 bucks to sacrifice on a header, sadly. 

 

Oh... if I were a rich man.

 

Someone with deeper pockets, buy one and throw it on the dyno. 

Edited May 25, 2021 by 2002Scoob

[markmac]

1-1/2, 1-5/8, what the heck, an eighth here or there......I knew it was something like that.  Nice pull on those old articles.  A+?

[visionaut]

It sure is pretty.  But I question the value a bit...  And its target would seem to be racers, or a very high hp street machine given its sizing.

 

It's got 1.625" primaries, in a claimed "tri-y" design (looks 4:1 to me, not 4:2:1), with NO tapering/expansion along the pipes, and a 2.25 outlet.  That's BIG.  (Typically a tri-y has increasing diameter from the primaries, to the secondaries to the outlet. As seen in my early Alpina tri-y header with 1.5 primaries, long 1.75 secondaries, and a 2.0 outlet).

 

And it's $500 more than the also-stainless Supersprint (the gold standard IMO)...

[markmac]

I had to take a look at my header on my Schnitzer engine.....1.86 primaries into a 2.5" collector.  Four into one.

[visionaut]

9 minutes ago, markmac said:

I had to take a look at my header on my Schnitzer engine.....1.86 primaries into a 2.5" collector.  Four into one.

because racecar

[Pdxguy]

Great article from Stahl. All about the data. 

 

Still want the Kooglewerks...

[markmac]

KoogleWerks (@forrest_kooglewerks) • Instagram photos and videos

 

 

It's Gooooooooooolllllllldddddddd......

[Pdxguy]

On 5/24/2021 at 10:41 AM, kbmb02 said:

Were these designed for a specific engine build spec, with the goal of improving performance or changing the exhaust note? Or, are they a bolt-on-to-whatever-M10-you-have sweet-looking stainless steel header? -KB

I asked him about the headers, "intended for 2.0-2.2l, 290-302 cam. Should improve power and torque through the midrange and top end without sacrificing off the line drivability and idle. This is NOT a race-only high RPM header, however it has been used and tested on track with good results"

[Pdxguy]

Edited June 2, 2021 by Pdxguy

[Pdxguy]

I made it! They sold out and I didn't buy them.

Did end up ordering a Stahl header (now called ACP),based on the article about the dyno testing. Significantly less. Very pleased

[irdave]

1 hour ago, Pdxguy said:

I made it! They sold out and I didn't buy them.

Did end up ordering a Stahl header (now called ACP),based on the article about the dyno testing. Significantly less. Very pleased

 

Just do me a favor and please don't tell me when they're available for the s14.  Seriously.

Edited June 2, 2021 by irdave

[2002Scoob]

5 hours ago, Pdxguy said:

I made it! They sold out and I didn't buy them.

 

Whew. You and me both, brutha. Bullet, dodged. 

 

I saw the '4 left' post on Insta and contemplated which organs were least necessary... then the one immediately after said 'sold out' and my kidney's/credit card let out a sigh of relief. 

[irdave]

6 hours ago, 2002Scoob said:

Whew. You and me both, brutha. Bullet, dodged. 

 

I saw the '4 left' post on Insta and contemplated which organs were least necessary... then the one immediately after said 'sold out' and my kidney's/credit card let out a sigh of relief. 

 

Mister "I'm turning my car into an electric car so your earthly matters no longer concern me!"

[2002Scoob]

36 minutes ago, irdave said:

 

Mister "I'm turning my car into an electric car so your earthly matters no longer concern me!"

I know...

 

But the motor would look that much more fantastic on a display stand with those headers in my garage when I finally become rich and can afford to EV convert. 

 

I drove my car maybe 500km last year, and so far have only warmed it up around the block and changed the oil this year now that I have a Renault Twizy thou! Holding off on Battery prices to come down, and Germany's laws to catch up to where it doesn't cost 30 grand just to seek testing/approval for road-worthiness of EV conversions. 

 

Or I sell it and buy a used Tesla... one of many options I'm pondering. 

Edited June 2, 2021 by 2002Scoob